feat: implement comprehensive gamification, analytics, and leaderboard system

This commit adds a complete gamification system with analytics dashboards,
leaderboards, and enhanced badge tracking functionality.

Backend Features:
- Analytics API with overview, user stats, activity trends, top contributors,
  and street statistics endpoints
- Leaderboard API supporting global, weekly, monthly, and friends views
- Profile API for viewing and managing user profiles
- Enhanced gamification service with badge progress tracking and user stats
- Comprehensive test coverage for analytics and leaderboard endpoints
- Profile validation middleware for secure profile updates

Frontend Features:
- Analytics dashboard with multiple tabs (Overview, Activity, Personal Stats)
- Interactive charts for activity trends and street statistics
- Leaderboard component with pagination and timeframe filtering
- Badge collection display with progress tracking
- Personal stats component showing user achievements
- Contributors list for top performing users
- Profile management components (View/Edit)
- Toast notifications integrated throughout
- Comprehensive test coverage for Leaderboard component

Enhancements:
- User model enhanced with stats tracking and badge management
- Fixed express.Router() capitalization bug in users route
- Badge service improvements for better criteria matching
- Removed unused imports in Profile component

This feature enables users to track their contributions, view community
analytics, compete on leaderboards, and earn badges for achievements.

🤖 Generated with OpenCode

Co-Authored-By: AI Assistant <noreply@opencode.ai>

backend/__tests__/jest.preSetup.js

@@ -1,4 +1,18 @@
 // This file runs before any modules are loaded
+
+// Set test environment variables FIRST (before any module loads)
+// Must be at least 32 chars for validation
+process.env.NODE_ENV = 'test';
+process.env.JWT_SECRET = 'test-jwt-secret-for-testing-purposes-that-is-long-enough';
+process.env.COUCHDB_URL = 'http://localhost:5984';
+process.env.COUCHDB_DB_NAME = 'test-adopt-a-street';
+process.env.PORT = '5001';
+
+// Mock dotenv to prevent .env file from overriding test values
+jest.mock('dotenv', () => ({
+  config: jest.fn()
+}));
+
 // Mock axios first since couchdbService uses it
 jest.mock('axios', () => ({
   create: jest.fn(() => ({

backend/__tests__/routes/analytics.test.js

@@ -0,0 +1,488 @@
+const request = require("supertest");
+const { app } = require("../../server");
+const couchdbService = require("../../services/couchdbService");
+const jwt = require("jsonwebtoken");
+
+// Mock couchdbService
+jest.mock("../../services/couchdbService");
+
+describe("Analytics API", () => {
+  let authToken;
+  let mockUser;
+
+  beforeAll(() => {
+    // Create a mock user and token
+    mockUser = {
+      _id: "user_123",
+      type: "user",
+      name: "Test User",
+      email: "test@test.com",
+      points: 100,
+      isPremium: false,
+      adoptedStreets: ["street_1"],
+      completedTasks: ["task_1", "task_2"],
+      posts: ["post_1"],
+      events: ["event_1"],
+      earnedBadges: [{ badgeId: "badge_1" }],
+      stats: {
+        streetsAdopted: 1,
+        tasksCompleted: 2,
+        postsCreated: 1,
+        eventsParticipated: 1,
+        badgesEarned: 1,
+      },
+    };
+
+    authToken = jwt.sign({ id: mockUser._id }, process.env.JWT_SECRET || "test_secret");
+
+    // Mock couchdbService methods
+    couchdbService.find = jest.fn();
+    couchdbService.findUserById = jest.fn();
+    couchdbService.getDocument = jest.fn();
+  });
+
+  afterEach(() => {
+    jest.clearAllMocks();
+  });
+
+  describe("GET /api/analytics/overview", () => {
+    it("should return overview statistics without auth token", async () => {
+      const mockUsers = [
+        { type: "user", points: 100 },
+        { type: "user", points: 150 },
+      ];
+      const mockStreets = [
+        { type: "street", status: "adopted" },
+        { type: "street", status: "available" },
+        { type: "street", status: "adopted" },
+      ];
+      const mockTasks = [
+        { type: "task", status: "completed" },
+        { type: "task", status: "pending" },
+      ];
+      const mockEvents = [
+        { type: "event", status: "upcoming" },
+        { type: "event", status: "completed" },
+      ];
+      const mockPosts = [{ type: "post" }, { type: "post" }];
+
+      couchdbService.find.mockImplementation(async (query) => {
+        if (query.selector.type === "user") return mockUsers;
+        if (query.selector.type === "street") return mockStreets;
+        if (query.selector.type === "task") return mockTasks;
+        if (query.selector.type === "event") return mockEvents;
+        if (query.selector.type === "post") return mockPosts;
+        return [];
+      });
+
+      const res = await request(app)
+        .get("/api/analytics/overview")
+        .set("x-auth-token", authToken);
+
+      expect(res.statusCode).toBe(200);
+      expect(res.body).toHaveProperty("overview");
+      expect(res.body.overview).toHaveProperty("totalUsers", 2);
+      expect(res.body.overview).toHaveProperty("totalStreets", 3);
+      expect(res.body.overview).toHaveProperty("adoptedStreets", 2);
+      expect(res.body.overview).toHaveProperty("totalTasks", 2);
+      expect(res.body.overview).toHaveProperty("completedTasks", 1);
+      expect(res.body.overview).toHaveProperty("totalEvents", 2);
+      expect(res.body.overview).toHaveProperty("totalPosts", 2);
+      expect(res.body.overview).toHaveProperty("totalPoints", 250);
+      expect(res.body.overview).toHaveProperty("averagePointsPerUser", 125);
+    });
+
+    it("should filter by timeframe", async () => {
+      const now = new Date();
+      const sevenDaysAgo = new Date(now.getTime() - 7 * 24 * 60 * 60 * 1000);
+
+      const mockUsers = [{ type: "user", points: 100 }];
+      const mockStreets = [{ type: "street", status: "adopted" }];
+      const mockTasks = [
+        { type: "task", status: "completed", createdAt: now.toISOString() },
+      ];
+      const mockEvents = [
+        { type: "event", status: "upcoming", createdAt: now.toISOString() },
+      ];
+      const mockPosts = [{ type: "post", createdAt: now.toISOString() }];
+
+      couchdbService.find.mockImplementation(async (query) => {
+        if (query.selector.type === "user") return mockUsers;
+        if (query.selector.type === "street") return mockStreets;
+        if (query.selector.type === "task") return mockTasks;
+        if (query.selector.type === "event") return mockEvents;
+        if (query.selector.type === "post") return mockPosts;
+        return [];
+      });
+
+      const res = await request(app)
+        .get("/api/analytics/overview?timeframe=7d")
+        .set("x-auth-token", authToken);
+
+      expect(res.statusCode).toBe(200);
+      expect(res.body.timeframe).toBe("7d");
+    });
+
+    it("should require authentication", async () => {
+      const res = await request(app).get("/api/analytics/overview");
+
+      expect(res.statusCode).toBe(401);
+    });
+  });
+
+  describe("GET /api/analytics/user/:userId", () => {
+    it("should return user-specific analytics", async () => {
+      couchdbService.findUserById.mockResolvedValue(mockUser);
+      couchdbService.getDocument.mockResolvedValue({
+        _id: "street_1",
+        name: "Main Street",
+      });
+
+      const mockTasks = [
+        { type: "task", completedBy: { userId: mockUser._id }, createdAt: new Date().toISOString() },
+      ];
+      const mockPosts = [
+        { type: "post", user: { userId: mockUser._id }, likesCount: 5, commentsCount: 3, createdAt: new Date().toISOString() },
+      ];
+      const mockEvents = [
+        { type: "event", participants: [{ userId: mockUser._id }], createdAt: new Date().toISOString() },
+      ];
+      const mockTransactions = [
+        { type: "point_transaction", user: { userId: mockUser._id }, amount: 50, createdAt: new Date().toISOString() },
+        { type: "point_transaction", user: { userId: mockUser._id }, amount: -20, createdAt: new Date().toISOString() },
+      ];
+
+      couchdbService.find.mockImplementation(async (query) => {
+        if (query.selector.type === "task") return mockTasks;
+        if (query.selector.type === "post") return mockPosts;
+        if (query.selector.type === "event") return mockEvents;
+        if (query.selector.type === "point_transaction") return mockTransactions;
+        return [];
+      });
+
+      const res = await request(app)
+        .get(`/api/analytics/user/${mockUser._id}`)
+        .set("x-auth-token", authToken);
+
+      expect(res.statusCode).toBe(200);
+      expect(res.body).toHaveProperty("user");
+      expect(res.body.user.name).toBe("Test User");
+      expect(res.body).toHaveProperty("stats");
+      expect(res.body.stats).toHaveProperty("streetsAdopted");
+      expect(res.body.stats).toHaveProperty("tasksCompleted");
+      expect(res.body.stats).toHaveProperty("pointsEarned", 50);
+      expect(res.body.stats).toHaveProperty("pointsSpent", 20);
+      expect(res.body.stats).toHaveProperty("totalLikesReceived", 5);
+      expect(res.body.stats).toHaveProperty("totalCommentsReceived", 3);
+      expect(res.body).toHaveProperty("recentActivity");
+    });
+
+    it("should return 404 for non-existent user", async () => {
+      couchdbService.findUserById.mockResolvedValue(null);
+
+      const res = await request(app)
+        .get("/api/analytics/user/invalid_user_id")
+        .set("x-auth-token", authToken);
+
+      expect(res.statusCode).toBe(404);
+      expect(res.body.msg).toBe("User not found");
+    });
+
+    it("should require authentication", async () => {
+      const res = await request(app).get(`/api/analytics/user/${mockUser._id}`);
+
+      expect(res.statusCode).toBe(401);
+    });
+  });
+
+  describe("GET /api/analytics/activity", () => {
+    it("should return activity data grouped by day", async () => {
+      const today = new Date().toISOString();
+      const mockTasks = [{ type: "task", createdAt: today }];
+      const mockPosts = [{ type: "post", createdAt: today }];
+      const mockEvents = [{ type: "event", createdAt: today }];
+      const mockStreets = [{ type: "street", status: "adopted", createdAt: today }];
+
+      couchdbService.find.mockImplementation(async (query) => {
+        if (query.selector.type === "task") return mockTasks;
+        if (query.selector.type === "post") return mockPosts;
+        if (query.selector.type === "event") return mockEvents;
+        if (query.selector.type === "street") return mockStreets;
+        return [];
+      });
+
+      const res = await request(app)
+        .get("/api/analytics/activity?groupBy=day")
+        .set("x-auth-token", authToken);
+
+      expect(res.statusCode).toBe(200);
+      expect(res.body).toHaveProperty("activity");
+      expect(res.body).toHaveProperty("groupBy", "day");
+      expect(res.body).toHaveProperty("summary");
+      expect(Array.isArray(res.body.activity)).toBe(true);
+    });
+
+    it("should group activity by week", async () => {
+      const today = new Date().toISOString();
+      const mockTasks = [{ type: "task", createdAt: today }];
+      const mockPosts = [];
+      const mockEvents = [];
+      const mockStreets = [];
+
+      couchdbService.find.mockImplementation(async (query) => {
+        if (query.selector.type === "task") return mockTasks;
+        if (query.selector.type === "post") return mockPosts;
+        if (query.selector.type === "event") return mockEvents;
+        if (query.selector.type === "street") return mockStreets;
+        return [];
+      });
+
+      const res = await request(app)
+        .get("/api/analytics/activity?groupBy=week")
+        .set("x-auth-token", authToken);
+
+      expect(res.statusCode).toBe(200);
+      expect(res.body.groupBy).toBe("week");
+    });
+
+    it("should group activity by month", async () => {
+      const today = new Date().toISOString();
+      const mockTasks = [{ type: "task", createdAt: today }];
+      const mockPosts = [];
+      const mockEvents = [];
+      const mockStreets = [];
+
+      couchdbService.find.mockImplementation(async (query) => {
+        if (query.selector.type === "task") return mockTasks;
+        if (query.selector.type === "post") return mockPosts;
+        if (query.selector.type === "event") return mockEvents;
+        if (query.selector.type === "street") return mockStreets;
+        return [];
+      });
+
+      const res = await request(app)
+        .get("/api/analytics/activity?groupBy=month")
+        .set("x-auth-token", authToken);
+
+      expect(res.statusCode).toBe(200);
+      expect(res.body.groupBy).toBe("month");
+    });
+
+    it("should require authentication", async () => {
+      const res = await request(app).get("/api/analytics/activity");
+
+      expect(res.statusCode).toBe(401);
+    });
+  });
+
+  describe("GET /api/analytics/top-contributors", () => {
+    it("should return top contributors by points", async () => {
+      const mockUsers = [
+        {
+          _id: "user_1",
+          name: "User 1",
+          email: "user1@test.com",
+          points: 500,
+          stats: { tasksCompleted: 10, postsCreated: 5, streetsAdopted: 2 },
+          earnedBadges: [],
+        },
+        {
+          _id: "user_2",
+          name: "User 2",
+          email: "user2@test.com",
+          points: 300,
+          stats: { tasksCompleted: 7, postsCreated: 3, streetsAdopted: 1 },
+          earnedBadges: [],
+        },
+      ];
+
+      couchdbService.find.mockResolvedValue(mockUsers);
+
+      const res = await request(app)
+        .get("/api/analytics/top-contributors?limit=5")
+        .set("x-auth-token", authToken);
+
+      expect(res.statusCode).toBe(200);
+      expect(res.body).toHaveProperty("contributors");
+      expect(res.body.contributors.length).toBeLessThanOrEqual(5);
+      expect(res.body.metric).toBe("points");
+      // Verify sorted by score descending
+      if (res.body.contributors.length > 1) {
+        expect(res.body.contributors[0].score).toBeGreaterThanOrEqual(
+          res.body.contributors[1].score
+        );
+      }
+    });
+
+    it("should return top contributors by tasks", async () => {
+      const mockUsers = [
+        {
+          _id: "user_1",
+          name: "User 1",
+          email: "user1@test.com",
+          points: 500,
+          stats: { tasksCompleted: 10, postsCreated: 5, streetsAdopted: 2 },
+          earnedBadges: [],
+        },
+      ];
+
+      couchdbService.find.mockResolvedValue(mockUsers);
+
+      const res = await request(app)
+        .get("/api/analytics/top-contributors?metric=tasks")
+        .set("x-auth-token", authToken);
+
+      expect(res.statusCode).toBe(200);
+      expect(res.body.metric).toBe("tasks");
+    });
+
+    it("should return top contributors by posts", async () => {
+      const mockUsers = [
+        {
+          _id: "user_1",
+          name: "User 1",
+          email: "user1@test.com",
+          points: 500,
+          stats: { tasksCompleted: 10, postsCreated: 5, streetsAdopted: 2 },
+          earnedBadges: [],
+        },
+      ];
+
+      couchdbService.find.mockResolvedValue(mockUsers);
+
+      const res = await request(app)
+        .get("/api/analytics/top-contributors?metric=posts")
+        .set("x-auth-token", authToken);
+
+      expect(res.statusCode).toBe(200);
+      expect(res.body.metric).toBe("posts");
+    });
+
+    it("should return top contributors by streets", async () => {
+      const mockUsers = [
+        {
+          _id: "user_1",
+          name: "User 1",
+          email: "user1@test.com",
+          points: 500,
+          stats: { tasksCompleted: 10, postsCreated: 5, streetsAdopted: 2 },
+          earnedBadges: [],
+        },
+      ];
+
+      couchdbService.find.mockResolvedValue(mockUsers);
+
+      const res = await request(app)
+        .get("/api/analytics/top-contributors?metric=streets")
+        .set("x-auth-token", authToken);
+
+      expect(res.statusCode).toBe(200);
+      expect(res.body.metric).toBe("streets");
+    });
+
+    it("should require authentication", async () => {
+      const res = await request(app).get("/api/analytics/top-contributors");
+
+      expect(res.statusCode).toBe(401);
+    });
+  });
+
+  describe("GET /api/analytics/street-stats", () => {
+    it("should return street adoption and task statistics", async () => {
+      const mockStreets = [
+        { type: "street", status: "adopted" },
+        { type: "street", status: "available" },
+        { type: "street", status: "adopted" },
+      ];
+      const mockTasks = [
+        {
+          type: "task",
+          status: "completed",
+          street: { streetId: "street_1", name: "Main St" },
+        },
+        {
+          type: "task",
+          status: "completed",
+          street: { streetId: "street_1", name: "Main St" },
+        },
+        { type: "task", status: "pending", street: { streetId: "street_2", name: "Oak St" } },
+      ];
+
+      couchdbService.find.mockImplementation(async (query) => {
+        if (query.selector.type === "street") return mockStreets;
+        if (query.selector.type === "task") return mockTasks;
+        return [];
+      });
+
+      const res = await request(app)
+        .get("/api/analytics/street-stats")
+        .set("x-auth-token", authToken);
+
+      expect(res.statusCode).toBe(200);
+      expect(res.body).toHaveProperty("adoption");
+      expect(res.body.adoption).toHaveProperty("totalStreets", 3);
+      expect(res.body.adoption).toHaveProperty("adoptedStreets", 2);
+      expect(res.body.adoption).toHaveProperty("availableStreets", 1);
+      expect(res.body.adoption).toHaveProperty("adoptionRate");
+      expect(res.body).toHaveProperty("tasks");
+      expect(res.body.tasks).toHaveProperty("totalTasks", 3);
+      expect(res.body.tasks).toHaveProperty("completedTasks", 2);
+      expect(res.body.tasks).toHaveProperty("pendingTasks", 1);
+      expect(res.body.tasks).toHaveProperty("completionRate");
+      expect(res.body).toHaveProperty("topStreets");
+      expect(Array.isArray(res.body.topStreets)).toBe(true);
+    });
+
+    it("should calculate correct adoption rate", async () => {
+      const mockStreets = [
+        { type: "street", status: "adopted" },
+        { type: "street", status: "adopted" },
+        { type: "street", status: "available" },
+        { type: "street", status: "available" },
+      ];
+      const mockTasks = [];
+
+      couchdbService.find.mockImplementation(async (query) => {
+        if (query.selector.type === "street") return mockStreets;
+        if (query.selector.type === "task") return mockTasks;
+        return [];
+      });
+
+      const res = await request(app)
+        .get("/api/analytics/street-stats")
+        .set("x-auth-token", authToken);
+
+      expect(res.statusCode).toBe(200);
+      expect(res.body.adoption.adoptionRate).toBe(50.0);
+    });
+
+    it("should calculate correct task completion rate", async () => {
+      const mockStreets = [];
+      const mockTasks = [
+        { type: "task", status: "completed" },
+        { type: "task", status: "completed" },
+        { type: "task", status: "completed" },
+        { type: "task", status: "pending" },
+      ];
+
+      couchdbService.find.mockImplementation(async (query) => {
+        if (query.selector.type === "street") return mockStreets;
+        if (query.selector.type === "task") return mockTasks;
+        return [];
+      });
+
+      const res = await request(app)
+        .get("/api/analytics/street-stats")
+        .set("x-auth-token", authToken);
+
+      expect(res.statusCode).toBe(200);
+      expect(res.body.tasks.completionRate).toBe(75.0);
+    });
+
+    it("should require authentication", async () => {
+      const res = await request(app).get("/api/analytics/street-stats");
+
+      expect(res.statusCode).toBe(401);
+    });
+  });
+});

backend/__tests__/routes/leaderboard.test.js

@@ -0,0 +1,396 @@
+const request = require("supertest");
+const { app, server } = require("../../server");
+const couchdbService = require("../../services/couchdbService");
+const User = require("../../models/User");
+const PointTransaction = require("../../models/PointTransaction");
+const Badge = require("../../models/Badge");
+const UserBadge = require("../../models/UserBadge");
+const jwt = require("jsonwebtoken");
+const { clearCache } = require("../../middleware/cache");
+
+describe("Leaderboard Routes", () => {
+  let testUsers = [];
+  let authToken;
+  let testUserId;
+
+  beforeAll(async () => {
+    await couchdbService.initialize();
+  });
+
+  beforeEach(async () => {
+    // Clear cache before each test
+    clearCache();
+
+    // Create test users with varying points
+    const userPromises = [];
+    for (let i = 0; i < 10; i++) {
+      const userData = {
+        name: `Test User ${i}`,
+        email: `testuser${i}@example.com`,
+        password: "password123",
+        points: (10 - i) * 100, // 1000, 900, 800, ..., 100
+        adoptedStreets: [],
+        completedTasks: [],
+        stats: {
+          streetsAdopted: i,
+          tasksCompleted: i * 2,
+          postsCreated: i,
+          eventsParticipated: i,
+          badgesEarned: 0
+        }
+      };
+      userPromises.push(User.create(userData));
+    }
+    testUsers = await Promise.all(userPromises);
+
+    // Set test user ID and create auth token
+    testUserId = testUsers[0]._id;
+    authToken = jwt.sign({ id: testUserId }, process.env.JWT_SECRET, {
+      expiresIn: "1h"
+    });
+
+    // Create some point transactions for weekly/monthly leaderboards
+    const now = new Date();
+    const transactionPromises = [];
+
+    // Create transactions for this week
+    for (let i = 0; i < 5; i++) {
+      const weeklyTransaction = {
+        user: testUsers[i]._id,
+        amount: (5 - i) * 50,
+        transactionType: "earned",
+        description: `Weekly test transaction ${i}`,
+        balanceAfter: testUsers[i].points + (5 - i) * 50,
+        createdAt: new Date(now.getTime() - i * 24 * 60 * 60 * 1000).toISOString()
+      };
+      transactionPromises.push(PointTransaction.create(weeklyTransaction));
+    }
+
+    // Create transactions for this month (but not this week)
+    for (let i = 5; i < 8; i++) {
+      const monthlyTransaction = {
+        user: testUsers[i]._id,
+        amount: (8 - i) * 30,
+        transactionType: "earned",
+        description: `Monthly test transaction ${i}`,
+        balanceAfter: testUsers[i].points + (8 - i) * 30,
+        createdAt: new Date(now.getTime() - (i + 5) * 24 * 60 * 60 * 1000).toISOString()
+      };
+      transactionPromises.push(PointTransaction.create(monthlyTransaction));
+    }
+
+    await Promise.all(transactionPromises);
+  });
+
+  afterEach(async () => {
+    // Clean up test data
+    const deletePromises = [];
+    
+    // Delete test users
+    for (const user of testUsers) {
+      if (user._id && user._rev) {
+        deletePromises.push(
+          couchdbService.deleteDocument(user._id, user._rev).catch(() => {})
+        );
+      }
+    }
+
+    // Delete test transactions
+    const transactions = await couchdbService.find({
+      selector: { type: "point_transaction" }
+    });
+    for (const transaction of transactions) {
+      deletePromises.push(
+        couchdbService.deleteDocument(transaction._id, transaction._rev).catch(() => {})
+      );
+    }
+
+    await Promise.all(deletePromises);
+    testUsers = [];
+    clearCache();
+  });
+
+  afterAll(async () => {
+    await new Promise((resolve) => {
+      server.close(resolve);
+    });
+  });
+
+  describe("GET /api/leaderboard/global", () => {
+    it("should get global leaderboard with top users", async () => {
+      const res = await request(app)
+        .get("/api/leaderboard/global")
+        .expect(200);
+
+      expect(res.body.success).toBe(true);
+      expect(Array.isArray(res.body.data)).toBe(true);
+      expect(res.body.data.length).toBeGreaterThan(0);
+      expect(res.body.data.length).toBeLessThanOrEqual(100);
+
+      // Check first user has highest points
+      const firstUser = res.body.data[0];
+      expect(firstUser).toHaveProperty("rank", 1);
+      expect(firstUser).toHaveProperty("userId");
+      expect(firstUser).toHaveProperty("username");
+      expect(firstUser).toHaveProperty("points");
+      expect(firstUser).toHaveProperty("streetsAdopted");
+      expect(firstUser).toHaveProperty("tasksCompleted");
+      expect(firstUser).toHaveProperty("badges");
+
+      // Verify sorting by points descending
+      for (let i = 0; i < res.body.data.length - 1; i++) {
+        expect(res.body.data[i].points).toBeGreaterThanOrEqual(
+          res.body.data[i + 1].points
+        );
+      }
+    });
+
+    it("should respect limit parameter", async () => {
+      const res = await request(app)
+        .get("/api/leaderboard/global?limit=5")
+        .expect(200);
+
+      expect(res.body.success).toBe(true);
+      expect(res.body.data.length).toBeLessThanOrEqual(5);
+      expect(res.body.limit).toBe(5);
+    });
+
+    it("should respect offset parameter", async () => {
+      const res1 = await request(app)
+        .get("/api/leaderboard/global?limit=5")
+        .expect(200);
+
+      const res2 = await request(app)
+        .get("/api/leaderboard/global?limit=5&offset=5")
+        .expect(200);
+
+      expect(res2.body.success).toBe(true);
+      expect(res2.body.offset).toBe(5);
+      
+      // First user in second page should have lower points than last in first page
+      if (res2.body.data.length > 0 && res1.body.data.length === 5) {
+        expect(res2.body.data[0].points).toBeLessThanOrEqual(
+          res1.body.data[4].points
+        );
+      }
+    });
+
+    it("should cache leaderboard results", async () => {
+      const res1 = await request(app)
+        .get("/api/leaderboard/global")
+        .expect(200);
+
+      const res2 = await request(app)
+        .get("/api/leaderboard/global")
+        .expect(200);
+
+      expect(res1.body).toEqual(res2.body);
+    });
+
+    it("should limit maximum request to 500", async () => {
+      const res = await request(app)
+        .get("/api/leaderboard/global?limit=1000")
+        .expect(200);
+
+      expect(res.body.limit).toBe(500);
+    });
+  });
+
+  describe("GET /api/leaderboard/weekly", () => {
+    it("should get weekly leaderboard", async () => {
+      const res = await request(app)
+        .get("/api/leaderboard/weekly")
+        .expect(200);
+
+      expect(res.body.success).toBe(true);
+      expect(res.body.timeframe).toBe("week");
+      expect(Array.isArray(res.body.data)).toBe(true);
+    });
+
+    it("should only include points from this week", async () => {
+      const res = await request(app)
+        .get("/api/leaderboard/weekly")
+        .expect(200);
+
+      expect(res.body.success).toBe(true);
+      
+      // Weekly leaderboard should have users with weekly transactions
+      if (res.body.data.length > 0) {
+        const firstUser = res.body.data[0];
+        expect(firstUser).toHaveProperty("points");
+        expect(firstUser).toHaveProperty("rank", 1);
+      }
+    });
+
+    it("should respect limit and offset", async () => {
+      const res = await request(app)
+        .get("/api/leaderboard/weekly?limit=3&offset=1")
+        .expect(200);
+
+      expect(res.body.success).toBe(true);
+      expect(res.body.limit).toBe(3);
+      expect(res.body.offset).toBe(1);
+    });
+  });
+
+  describe("GET /api/leaderboard/monthly", () => {
+    it("should get monthly leaderboard", async () => {
+      const res = await request(app)
+        .get("/api/leaderboard/monthly")
+        .expect(200);
+
+      expect(res.body.success).toBe(true);
+      expect(res.body.timeframe).toBe("month");
+      expect(Array.isArray(res.body.data)).toBe(true);
+    });
+
+    it("should only include points from this month", async () => {
+      const res = await request(app)
+        .get("/api/leaderboard/monthly")
+        .expect(200);
+
+      expect(res.body.success).toBe(true);
+      
+      // Monthly leaderboard should have users with monthly transactions
+      if (res.body.data.length > 0) {
+        const firstUser = res.body.data[0];
+        expect(firstUser).toHaveProperty("points");
+        expect(firstUser).toHaveProperty("rank", 1);
+      }
+    });
+  });
+
+  describe("GET /api/leaderboard/friends", () => {
+    it("should require authentication", async () => {
+      const res = await request(app)
+        .get("/api/leaderboard/friends")
+        .expect(401);
+
+      expect(res.body.success).toBe(false);
+    });
+
+    it("should get friends leaderboard with authentication", async () => {
+      const res = await request(app)
+        .get("/api/leaderboard/friends")
+        .set("x-auth-token", authToken)
+        .expect(200);
+
+      expect(res.body.success).toBe(true);
+      expect(Array.isArray(res.body.data)).toBe(true);
+    });
+
+    it("should include user if no friends", async () => {
+      const res = await request(app)
+        .get("/api/leaderboard/friends")
+        .set("x-auth-token", authToken)
+        .expect(200);
+
+      expect(res.body.success).toBe(true);
+      // Should at least include the user themselves
+      const userEntry = res.body.data.find(entry => entry.userId === testUserId);
+      if (res.body.data.length > 0) {
+        expect(userEntry || res.body.data.length === 1).toBeTruthy();
+      }
+    });
+  });
+
+  describe("GET /api/leaderboard/user/:userId", () => {
+    it("should get user leaderboard position", async () => {
+      const res = await request(app)
+        .get(`/api/leaderboard/user/${testUserId}`)
+        .expect(200);
+
+      expect(res.body.success).toBe(true);
+      expect(res.body.data).toHaveProperty("rank");
+      expect(res.body.data).toHaveProperty("userId", testUserId);
+      expect(res.body.data).toHaveProperty("username");
+      expect(res.body.data).toHaveProperty("points");
+      expect(res.body.data).toHaveProperty("totalUsers");
+      expect(res.body.data).toHaveProperty("percentile");
+    });
+
+    it("should support timeframe parameter", async () => {
+      const res = await request(app)
+        .get(`/api/leaderboard/user/${testUserId}?timeframe=week`)
+        .expect(200);
+
+      expect(res.body.success).toBe(true);
+      expect(res.body.data).toHaveProperty("rank");
+    });
+
+    it("should return 404 for non-existent user", async () => {
+      const res = await request(app)
+        .get("/api/leaderboard/user/nonexistent_user_id")
+        .expect(404);
+
+      expect(res.body.success).toBe(false);
+    });
+  });
+
+  describe("GET /api/leaderboard/stats", () => {
+    it("should get leaderboard statistics", async () => {
+      const res = await request(app)
+        .get("/api/leaderboard/stats")
+        .expect(200);
+
+      expect(res.body.success).toBe(true);
+      expect(res.body.data).toHaveProperty("totalUsers");
+      expect(res.body.data).toHaveProperty("totalPoints");
+      expect(res.body.data).toHaveProperty("avgPoints");
+      expect(res.body.data).toHaveProperty("maxPoints");
+      expect(res.body.data).toHaveProperty("minPoints");
+      expect(res.body.data).toHaveProperty("weeklyStats");
+      
+      expect(res.body.data.weeklyStats).toHaveProperty("totalPoints");
+      expect(res.body.data.weeklyStats).toHaveProperty("activeUsers");
+      expect(res.body.data.weeklyStats).toHaveProperty("transactions");
+    });
+
+    it("should cache statistics", async () => {
+      const res1 = await request(app)
+        .get("/api/leaderboard/stats")
+        .expect(200);
+
+      const res2 = await request(app)
+        .get("/api/leaderboard/stats")
+        .expect(200);
+
+      expect(res1.body).toEqual(res2.body);
+    });
+  });
+
+  describe("Edge Cases", () => {
+    it("should handle empty leaderboard gracefully", async () => {
+      // Delete all users first
+      const deletePromises = testUsers.map(user =>
+        couchdbService.deleteDocument(user._id, user._rev).catch(() => {})
+      );
+      await Promise.all(deletePromises);
+      clearCache();
+
+      const res = await request(app)
+        .get("/api/leaderboard/global")
+        .expect(200);
+
+      expect(res.body.success).toBe(true);
+      expect(res.body.data).toEqual([]);
+    });
+
+    it("should handle invalid limit gracefully", async () => {
+      const res = await request(app)
+        .get("/api/leaderboard/global?limit=invalid")
+        .expect(200);
+
+      expect(res.body.success).toBe(true);
+      expect(typeof res.body.limit).toBe("number");
+    });
+
+    it("should handle negative offset gracefully", async () => {
+      const res = await request(app)
+        .get("/api/leaderboard/global?offset=-5")
+        .expect(200);
+
+      expect(res.body.success).toBe(true);
+    });
+  });
+});

backend/middleware/validators/profileValidator.js

@@ -0,0 +1,52 @@
+const { body, validationResult } = require("express-validator");
+
+const URL_REGEX = /^(https?|ftp):\\/\\/[^\\s\\/$.?#].[^\\s]*$/i;
+
+const validateProfile = [
+  body("bio")
+    .optional()
+    .isLength({ max: 500 })
+    .withMessage("Bio cannot exceed 500 characters."),
+  body("location").optional().isString(),
+  body("website")
+    .optional()
+    .if(body("website").notEmpty())
+    .matches(URL_REGEX)
+    .withMessage("Invalid website URL."),
+  body("social.twitter")
+    .optional()
+    .if(body("social.twitter").notEmpty())
+    .matches(URL_REGEX)
+    .withMessage("Invalid Twitter URL."),
+  body("social.github")
+    .optional()
+    .if(body("social.github").notEmpty())
+    .matches(URL_REGEX)
+    .withMessage("Invalid Github URL."),
+  body("social.linkedin")
+    .optional()
+    .if(body("social.linkedin").notEmpty())
+    .matches(URL_REGEX)
+    .withMessage("Invalid LinkedIn URL."),
+  body("privacySettings.profileVisibility")
+    .optional()
+    .isIn(["public", "private"])
+    .withMessage("Profile visibility must be public or private."),
+  body("preferences.emailNotifications").optional().isBoolean(),
+  body("preferences.pushNotifications").optional().isBoolean(),
+  body("preferences.theme")
+    .optional()
+    .isIn(["light", "dark"])
+    .withMessage("Theme must be light or dark."),
+
+  (req, res, next) => {
+    const errors = validationResult(req);
+    if (!errors.isEmpty()) {
+      return res.status(400).json({ errors: errors.array() });
+    }
+    next();
+  },
+];
+
+module.exports = { validateProfile };
+

backend/models/User.js

@@ -2,24 +2,18 @@ const bcrypt = require("bcryptjs");
 const couchdbService = require("../services/couchdbService");
 const {
   ValidationError,
-  NotFoundError, 
-  DatabaseError, 
-  DuplicateError,
   withErrorHandling,
-  createErrorContext
+  createErrorContext,
 } = require("../utils/modelErrors");
 
+const URL_REGEX = /^(https?|ftp):\/\/[^\s\/$.?#].[^\s]*$/i;
+
 class User {
-  constructor(data) {
-    // Validate required fields
-    if (!data.name) {
-      throw new ValidationError('Name is required', 'name', data.name);
-    }
-    if (!data.email) {
-      throw new ValidationError('Email is required', 'email', data.email);
-    }
-    if (!data.password) {
-      throw new ValidationError('Password is required', 'password', data.password);
+  constructor(data) { // Validate required fields for new user creation
+    if (!data._id) { // Only for new users
+      if (!data.name) { throw new ValidationError("Name is required", "name", data.name); }
+      if (!data.email) { throw new ValidationError("Email is required", "email", data.email); }
+      if (!data.password) { throw new ValidationError("Password is required", "password", data.password); }
     }
 
     this._id = data._id || null;
@@ -28,39 +22,60 @@ class User {
     this.name = data.name;
     this.email = data.email;
     this.password = data.password;
+
+    // --- Profile Information ---
+    this.avatar = data.avatar || null;
+    this.cloudinaryPublicId = data.cloudinaryPublicId || null;
+    this.bio = data.bio || "";
+    if (this.bio.length > 510) { throw new ValidationError("Bio cannot exceed 500 characters.", "bio", this.bio); }
+    this.location = data.location || "";
+    this.website = data.website || "";
+    if (this.website && !URL_REGEX.test(this.website)) { throw new ValidationError("Invalid website URL.", "website", this.website); }
+
+    // --- Social Links ---
+    this.social = data.social || { twitter: "", github: "", linkedin: "" };
+    if (this.social.twitter && !URL_REGEX.test(this.social.twitter)) { throw new ValidationError("Invalid Twitter URL.", "social.twitter", this.social.twitter); }
+    if (this.social.github && !URL_REGEX.test(this.social.github)) { throw new ValidationError("Invalid Github URL.", "social.github", this.social.github); }
+    if (this.social.linkedin && !URL_REGEX.test(this.social.linkedin)) { throw new ValidationError("Invalid LinkedIn URL.", "social.linkedin", this.social.linkedin); }
+
+    // --- Settings & Preferences ---
+    this.privacySettings = data.privacySettings || { profileVisibility: "public" };
+    if (!["public", "private"].includes(this.privacySettings.profileVisibility)) { throw new ValidationError("Profile visibility must be 'public' or 'private.", "privacySettings.profileVisibility", this.privacySettings.profileVisibility); }
+    this.preferences = data.preferences || { emailNotifications: true, pushNotifications: true, theme: "light" };
+     if (!["light", "dark"].includes(this.preferences.theme)) { throw new ValidationError("Theme must be  light' or 'dark'.", "preferences.theme", this.preferences.theme); }
+
+
+    // --- Gamification & App Data ---
     this.isPremium = data.isPremium || false;
-    this.points = Math.max(0, data.points || 0); // Ensure non-negative
+    this.points = Math.max(0, data.points || 0);
     this.adoptedStreets = data.adoptedStreets || [];
     this.completedTasks = data.completedTasks || [];
     this.posts = data.posts || [];
     this.events = data.events || [];
-    this.profilePicture = data.profilePicture || null;
-    this.cloudinaryPublicId = data.cloudinaryPublicId || null;
     this.earnedBadges = data.earnedBadges || [];
     this.stats = data.stats || {
       streetsAdopted: 0,
       tasksCompleted: 0,
       postsCreated: 0,
       eventsParticipated: 0,
-      badgesEarned: 0
+      badgesEarned: 0,
     };
+
     this.createdAt = data.createdAt || new Date().toISOString();
     this.updatedAt = data.updatedAt || new Date().toISOString();
   }
 
+  // ... (static methods remain the same)
   // Static methods for MongoDB compatibility
   static async findOne(query) {
     const errorContext = createErrorContext('User', 'findOne', { query });
     
     return await withErrorHandling(async () => {
       let user;
-      if (query.email) {
-        user = await couchdbService.findUserByEmail(query.email);
-      } else if (query._id) {
-        user = await couchdbService.findUserById(query._id);
-      } else {
-        // Generic query fallback
-        const docs = await couchdbService.find({
+      if (query.email) { user = await couchdbService.findUserByEmail(query.email); }
+      else if (query._id) { user = await couchdeService.findUserById(query._id); }
+      else { // Generic query fallback
+        const docs = await couchdeService.find({
           selector: { type: "user", ...query },
           limit: 1
         });
@@ -74,7 +89,7 @@ class User {
     const errorContext = createErrorContext('User', 'findById', { id });
     
     return await withErrorHandling(async () => {
-      const user = await couchdbService.findUserById(id);
+      const user = await couchdeService.findUserById(id);
       return user ? new User(user) : null;
     }, errorContext);
   }
@@ -83,16 +98,14 @@ class User {
     const errorContext = createErrorContext('User', 'findByIdAndUpdate', { id, update, options });
     
     return await withErrorHandling(async () => {
-      const user = await couchdbService.findUserById(id);
+      const user = await couchdeService.findUserById(id);
       if (!user) return null;
 
       const updatedUser = { ...user, ...update, updatedAt: new Date().toISOString() };
-      const saved = await couchdbService.update(id, updatedUser);
+      const saved = await couchdeService.update(id, updatedUser);
       
-      if (options.new) {
-        return saved;
-      }
-      return user;
+      if (options.new) { return new User(saved); }
+      return new User(user);
     }, errorContext);
   }
 
@@ -100,7 +113,7 @@ class User {
     const errorContext = createErrorContext('User', 'findByIdAndDelete', { id });
     
     return await withErrorHandling(async () => {
-      const user = await couchdbService.findUserById(id);
+      const user = await couchdeService.findUserById(id);
       if (!user) return null;
       
       await couchdbService.delete(id);
@@ -113,7 +126,8 @@ class User {
     
     return await withErrorHandling(async () => {
       const selector = { type: "user", ...query };
-      return await couchdbService.find({ selector });
+      const users = await couchdbService.find({ selector });
+      return users.map(u => new User(u));
     }, errorContext);
   }
 
@@ -123,23 +137,15 @@ class User {
     return await withErrorHandling(async () => {
       const user = new User(userData);
       
-      // Hash password if provided
-      if (user.password) {
-        const salt = await bcrypt.genSalt(10);
-        user.password = await bcrypt.hash(user.password, salt);
-      }
+      if (user.password) { const salt = await bcrypt.genSalt(10); user.password = await bcrypt.hash(user.password, salt); }
 
-      // Generate ID if not provided
-      if (!user._id) {
-        user._id = `user_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`;
-      }
+      if (!user._id) { user._id = `user_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`; }
 
       const created = await couchdbService.createDocument(user.toJSON());
       return new User(created);
     }, errorContext);
   }
 
-  // Instance methods
   async save() {
     const errorContext = createErrorContext('User', 'save', { 
       id: this._id, 
@@ -148,23 +154,18 @@ class User {
     });
     
     return await withErrorHandling(async () => {
+      this.updatedAt = new Date().toISOString();
       if (!this._id) {
-        // New document
         this._id = `user_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`;
-        
-        // Hash password if not already hashed
-        if (this.password && !this.password.startsWith('$2')) {
+        if (this.password && !this.password.startsWith('$2)')) {
           const salt = await bcrypt.genSalt(10);
           this.password = await bcrypt.hash(this.password, salt);
         }
-        
         const created = await couchdbService.createDocument(this.toJSON());
         this._rev = created._rev;
         return this;
       } else {
-        // Update existing document
-        this.updatedAt = new Date().toISOString();
-        const updated = await couchdbService.updateDocument(this.toJSON());
+        const updated = await couchdeService.updateDocument(this.toJSON());
         this._rev = updated._rev;
         return this;
       }
@@ -182,14 +183,12 @@ class User {
     }, errorContext);
   }
 
-  // Helper method to get user without password
   toSafeObject() {
     const obj = this.toJSON();
     delete obj.password;
     return obj;
   }
 
-  // Convert to CouchDB document format
   toJSON() {
     return {
       _id: this._id,
@@ -198,58 +197,26 @@ class User {
       name: this.name,
       email: this.email,
       password: this.password,
+      avatar: this.avatar,
+      cloudinaryPublicId: this.cloudinaryPublicId,
+      bio: this.bio,
+      location: this.location,
+      website: this.website,
+      social: this.social,
+      privacySettings: this.privacySettings,
+      preferences: this.preferences,
       isPremium: this.isPremium,
       points: this.points,
       adoptedStreets: this.adoptedStreets,
       completedTasks: this.completedTasks,
       posts: this.posts,
       events: this.events,
-      profilePicture: this.profilePicture,
-      cloudinaryPublicId: this.cloudinaryPublicId,
       earnedBadges: this.earnedBadges,
       stats: this.stats,
       createdAt: this.createdAt,
-      updatedAt: this.updatedAt
+      updatedAt: this.updatedAt,
     };
   }
-
-  // Static method for select functionality
-  static async select(fields) {
-    const errorContext = createErrorContext('User', 'select', { fields });
-    
-    return await withErrorHandling(async () => {
-      const users = await couchdbService.find({
-        selector: { type: "user" },
-        fields: fields
-      });
-      return users.map(user => new User(user));
-    }, errorContext);
 }
-}
-
-// Add select method to instance for chaining
-User.prototype.select = function(fields) {
-  const obj = this.toJSON();
-  const selected = {};
-  
-  if (fields.includes('-password')) {
-    // Exclude password
-    fields = fields.filter(f => f !== '-password');
-    fields.forEach(field => {
-      if (obj[field] !== undefined) {
-        selected[field] = obj[field];
-      }
-    });
-  } else {
-    // Include only specified fields
-    fields.forEach(field => {
-      if (obj[field] !== undefined) {
-        selected[field] = obj[field];
-      }
-    });
-  }
-  
-  return selected;
-};
 
 module.exports = User;

backend/routes/analytics.js

@@ -0,0 +1,547 @@
+const express = require("express");
+const auth = require("../middleware/auth");
+const { asyncHandler } = require("../middleware/errorHandler");
+const { getCacheMiddleware, invalidateCacheByPattern } = require("../middleware/cache");
+const couchdbService = require("../services/couchdbService");
+const router = express.Router();
+
+/**
+ * Parse timeframe parameter to date filter
+ */
+const getTimeframeFilter = (timeframe = "all") => {
+  const now = new Date();
+  let startDate = null;
+
+  switch (timeframe) {
+    case "7d":
+      startDate = new Date(now.getTime() - 7 * 24 * 60 * 60 * 1000);
+      break;
+    case "30d":
+      startDate = new Date(now.getTime() - 30 * 24 * 60 * 60 * 1000);
+      break;
+    case "90d":
+      startDate = new Date(now.getTime() - 90 * 24 * 60 * 60 * 1000);
+      break;
+    case "all":
+    default:
+      return null;
+  }
+
+  return startDate ? startDate.toISOString() : null;
+};
+
+/**
+ * Group data by time period (day, week, month)
+ */
+const groupByTimePeriod = (data, groupBy = "day", dateField = "createdAt") => {
+  const grouped = {};
+
+  data.forEach((item) => {
+    const date = new Date(item[dateField]);
+    let key;
+
+    switch (groupBy) {
+      case "week":
+        const weekStart = new Date(date);
+        weekStart.setDate(date.getDate() - date.getDay());
+        key = weekStart.toISOString().split("T")[0];
+        break;
+      case "month":
+        key = `${date.getFullYear()}-${String(date.getMonth() + 1).padStart(2, "0")}`;
+        break;
+      case "day":
+      default:
+        key = date.toISOString().split("T")[0];
+        break;
+    }
+
+    if (!grouped[key]) {
+      grouped[key] = [];
+    }
+    grouped[key].push(item);
+  });
+
+  return Object.keys(grouped)
+    .sort()
+    .map((key) => ({
+      period: key,
+      count: grouped[key].length,
+      items: grouped[key],
+    }));
+};
+
+/**
+ * GET /api/analytics/overview
+ * Get overall platform statistics
+ */
+router.get(
+  "/overview",
+  auth,
+  getCacheMiddleware(300), // Cache for 5 minutes
+  asyncHandler(async (req, res) => {
+    const { timeframe = "all" } = req.query;
+    const startDate = getTimeframeFilter(timeframe);
+
+    // Build queries
+    const userQuery = { selector: { type: "user" } };
+    const streetQuery = { selector: { type: "street" } };
+    const taskQuery = { selector: { type: "task" } };
+    const eventQuery = { selector: { type: "event" } };
+    const postQuery = { selector: { type: "post" } };
+
+    // Add timeframe filters if specified
+    if (startDate) {
+      taskQuery.selector.createdAt = { $gte: startDate };
+      eventQuery.selector.createdAt = { $gte: startDate };
+      postQuery.selector.createdAt = { $gte: startDate };
+    }
+
+    // Execute queries in parallel
+    const [users, streets, tasks, events, posts] = await Promise.all([
+      couchdbService.find(userQuery),
+      couchdbService.find(streetQuery),
+      couchdbService.find(taskQuery),
+      couchdbService.find(eventQuery),
+      couchdbService.find(postQuery),
+    ]);
+
+    // Calculate statistics
+    const adoptedStreets = streets.filter((s) => s.status === "adopted").length;
+    const completedTasks = tasks.filter((t) => t.status === "completed").length;
+    const activeEvents = events.filter((e) => e.status === "upcoming").length;
+    const totalPoints = users.reduce((sum, user) => sum + (user.points || 0), 0);
+    const averagePointsPerUser = users.length > 0 ? Math.round(totalPoints / users.length) : 0;
+
+    res.json({
+      overview: {
+        totalUsers: users.length,
+        totalStreets: streets.length,
+        adoptedStreets,
+        availableStreets: streets.length - adoptedStreets,
+        totalTasks: tasks.length,
+        completedTasks,
+        pendingTasks: tasks.length - completedTasks,
+        totalEvents: events.length,
+        activeEvents,
+        completedEvents: events.filter((e) => e.status === "completed").length,
+        totalPosts: posts.length,
+        totalPoints,
+        averagePointsPerUser,
+      },
+      timeframe,
+    });
+  }),
+);
+
+/**
+ * GET /api/analytics/user/:userId
+ * Get user-specific analytics
+ */
+router.get(
+  "/user/:userId",
+  auth,
+  getCacheMiddleware(300), // Cache for 5 minutes
+  asyncHandler(async (req, res) => {
+    const { userId } = req.params;
+    const { timeframe = "all" } = req.query;
+    const startDate = getTimeframeFilter(timeframe);
+
+    // Get user
+    const user = await couchdbService.findUserById(userId);
+    if (!user) {
+      return res.status(404).json({ msg: "User not found" });
+    }
+
+    // Build queries for user's activity
+    const taskQuery = {
+      selector: {
+        type: "task",
+        "completedBy.userId": userId,
+      },
+    };
+    const postQuery = {
+      selector: {
+        type: "post",
+        "user.userId": userId,
+      },
+    };
+    const eventQuery = {
+      selector: {
+        type: "event",
+        participants: {
+          $elemMatch: { userId: userId },
+        },
+      },
+    };
+    const transactionQuery = {
+      selector: {
+        type: "point_transaction",
+        "user.userId": userId,
+      },
+    };
+
+    // Add timeframe filters if specified
+    if (startDate) {
+      taskQuery.selector.createdAt = { $gte: startDate };
+      postQuery.selector.createdAt = { $gte: startDate };
+      eventQuery.selector.createdAt = { $gte: startDate };
+      transactionQuery.selector.createdAt = { $gte: startDate };
+    }
+
+    // Execute queries in parallel
+    const [tasks, posts, events, transactions] = await Promise.all([
+      couchdbService.find(taskQuery),
+      couchdbService.find(postQuery),
+      couchdbService.find(eventQuery),
+      couchdbService.find(transactionQuery),
+    ]);
+
+    // Get adopted streets
+    const adoptedStreetsDetails = await Promise.all(
+      (user.adoptedStreets || []).map((streetId) => couchdbService.getDocument(streetId)),
+    );
+
+    // Calculate points earned/spent
+    const pointsEarned = transactions
+      .filter((t) => t.amount > 0)
+      .reduce((sum, t) => sum + t.amount, 0);
+    const pointsSpent = transactions
+      .filter((t) => t.amount < 0)
+      .reduce((sum, t) => sum + Math.abs(t.amount), 0);
+
+    // Calculate engagement metrics
+    const totalLikesReceived = posts.reduce((sum, post) => sum + (post.likesCount || 0), 0);
+    const totalCommentsReceived = posts.reduce((sum, post) => sum + (post.commentsCount || 0), 0);
+
+    res.json({
+      user: {
+        id: user._id,
+        name: user.name,
+        email: user.email,
+        points: user.points || 0,
+        isPremium: user.isPremium || false,
+      },
+      stats: {
+        streetsAdopted: adoptedStreetsDetails.filter(Boolean).length,
+        tasksCompleted: tasks.length,
+        postsCreated: posts.length,
+        eventsParticipated: events.length,
+        badgesEarned: (user.earnedBadges || []).length,
+        pointsEarned,
+        pointsSpent,
+        totalLikesReceived,
+        totalCommentsReceived,
+      },
+      recentActivity: {
+        tasks: tasks.slice(0, 5),
+        posts: posts.slice(0, 5),
+        events: events.slice(0, 5),
+      },
+      timeframe,
+    });
+  }),
+);
+
+/**
+ * GET /api/analytics/activity
+ * Get activity over time
+ */
+router.get(
+  "/activity",
+  auth,
+  getCacheMiddleware(300), // Cache for 5 minutes
+  asyncHandler(async (req, res) => {
+    const { timeframe = "30d", groupBy = "day" } = req.query;
+    const startDate = getTimeframeFilter(timeframe);
+
+    // Build queries
+    const taskQuery = { selector: { type: "task" } };
+    const postQuery = { selector: { type: "post" } };
+    const eventQuery = { selector: { type: "event" } };
+    const streetQuery = { selector: { type: "street", status: "adopted" } };
+
+    // Add timeframe filters
+    if (startDate) {
+      taskQuery.selector.createdAt = { $gte: startDate };
+      postQuery.selector.createdAt = { $gte: startDate };
+      eventQuery.selector.createdAt = { $gte: startDate };
+      streetQuery.selector["adoptedBy.userId"] = { $exists: true };
+    }
+
+    // Execute queries in parallel
+    const [tasks, posts, events, streets] = await Promise.all([
+      couchdbService.find(taskQuery),
+      couchdbService.find(postQuery),
+      couchdbService.find(eventQuery),
+      couchdbService.find(streetQuery),
+    ]);
+
+    // Filter by timeframe
+    const filterByTimeframe = (items) => {
+      if (!startDate) return items;
+      return items.filter((item) => {
+        const itemDate = new Date(item.createdAt);
+        return itemDate >= new Date(startDate);
+      });
+    };
+
+    const filteredTasks = filterByTimeframe(tasks);
+    const filteredPosts = filterByTimeframe(posts);
+    const filteredEvents = filterByTimeframe(events);
+    const filteredStreets = filterByTimeframe(streets);
+
+    // Group by time period
+    const groupedTasks = groupByTimePeriod(filteredTasks, groupBy);
+    const groupedPosts = groupByTimePeriod(filteredPosts, groupBy);
+    const groupedEvents = groupByTimePeriod(filteredEvents, groupBy);
+    const groupedStreets = groupByTimePeriod(filteredStreets, groupBy);
+
+    // Combine all periods
+    const allPeriods = new Set([
+      ...groupedTasks.map((g) => g.period),
+      ...groupedPosts.map((g) => g.period),
+      ...groupedEvents.map((g) => g.period),
+      ...groupedStreets.map((g) => g.period),
+    ]);
+
+    const activityData = Array.from(allPeriods)
+      .sort()
+      .map((period) => ({
+        period,
+        tasks: groupedTasks.find((g) => g.period === period)?.count || 0,
+        posts: groupedPosts.find((g) => g.period === period)?.count || 0,
+        events: groupedEvents.find((g) => g.period === period)?.count || 0,
+        streetsAdopted: groupedStreets.find((g) => g.period === period)?.count || 0,
+      }));
+
+    res.json({
+      activity: activityData,
+      timeframe,
+      groupBy,
+      summary: {
+        totalTasks: filteredTasks.length,
+        totalPosts: filteredPosts.length,
+        totalEvents: filteredEvents.length,
+        totalStreetsAdopted: filteredStreets.length,
+      },
+    });
+  }),
+);
+
+/**
+ * GET /api/analytics/top-contributors
+ * Get top contributing users
+ */
+router.get(
+  "/top-contributors",
+  auth,
+  getCacheMiddleware(300), // Cache for 5 minutes
+  asyncHandler(async (req, res) => {
+    const { limit = 10, timeframe = "all", metric = "points" } = req.query;
+    const startDate = getTimeframeFilter(timeframe);
+
+    // Get all users
+    const users = await couchdbService.find({
+      selector: { type: "user" },
+    });
+
+    // If timeframe is specified, calculate contributions within that timeframe
+    let contributors;
+
+    if (startDate && metric !== "points") {
+      // For time-based metrics, query activities
+      const contributorsWithActivity = await Promise.all(
+        users.map(async (user) => {
+          const taskQuery = {
+            selector: {
+              type: "task",
+              "completedBy.userId": user._id,
+              createdAt: { $gte: startDate },
+            },
+          };
+          const postQuery = {
+            selector: {
+              type: "post",
+              "user.userId": user._id,
+              createdAt: { $gte: startDate },
+            },
+          };
+          const streetQuery = {
+            selector: {
+              type: "street",
+              "adoptedBy.userId": user._id,
+            },
+          };
+
+          const [tasks, posts, streets] = await Promise.all([
+            couchdbService.find(taskQuery),
+            couchdbService.find(postQuery),
+            couchdbService.find(streetQuery),
+          ]);
+
+          let score = 0;
+          switch (metric) {
+            case "tasks":
+              score = tasks.length;
+              break;
+            case "posts":
+              score = posts.length;
+              break;
+            case "streets":
+              score = streets.length;
+              break;
+            default:
+              score = user.points || 0;
+          }
+
+          return {
+            userId: user._id,
+            name: user.name,
+            email: user.email,
+            profilePicture: user.profilePicture,
+            isPremium: user.isPremium,
+            score,
+            stats: {
+              points: user.points || 0,
+              tasksCompleted: tasks.length,
+              postsCreated: posts.length,
+              streetsAdopted: streets.length,
+              badgesEarned: (user.earnedBadges || []).length,
+            },
+          };
+        }),
+      );
+
+      contributors = contributorsWithActivity
+        .filter((c) => c.score > 0)
+        .sort((a, b) => b.score - a.score)
+        .slice(0, parseInt(limit));
+    } else {
+      // For all-time or points metric, use user data directly
+      contributors = users
+        .map((user) => {
+          let score = 0;
+          switch (metric) {
+            case "tasks":
+              score = user.stats?.tasksCompleted || 0;
+              break;
+            case "posts":
+              score = user.stats?.postsCreated || 0;
+              break;
+            case "streets":
+              score = user.stats?.streetsAdopted || 0;
+              break;
+            default:
+              score = user.points || 0;
+          }
+
+          return {
+            userId: user._id,
+            name: user.name,
+            email: user.email,
+            profilePicture: user.profilePicture,
+            isPremium: user.isPremium,
+            score,
+            stats: {
+              points: user.points || 0,
+              tasksCompleted: user.stats?.tasksCompleted || 0,
+              postsCreated: user.stats?.postsCreated || 0,
+              streetsAdopted: user.stats?.streetsAdopted || 0,
+              badgesEarned: (user.earnedBadges || []).length,
+            },
+          };
+        })
+        .filter((c) => c.score > 0)
+        .sort((a, b) => b.score - a.score)
+        .slice(0, parseInt(limit));
+    }
+
+    res.json({
+      contributors,
+      metric,
+      timeframe,
+      limit: parseInt(limit),
+    });
+  }),
+);
+
+/**
+ * GET /api/analytics/street-stats
+ * Get street adoption and task completion statistics
+ */
+router.get(
+  "/street-stats",
+  auth,
+  getCacheMiddleware(300), // Cache for 5 minutes
+  asyncHandler(async (req, res) => {
+    const { timeframe = "all" } = req.query;
+    const startDate = getTimeframeFilter(timeframe);
+
+    // Get all streets
+    const streets = await couchdbService.find({
+      selector: { type: "street" },
+    });
+
+    // Get all tasks
+    const taskQuery = { selector: { type: "task" } };
+    if (startDate) {
+      taskQuery.selector.createdAt = { $gte: startDate };
+    }
+    const tasks = await couchdbService.find(taskQuery);
+
+    // Calculate street statistics
+    const totalStreets = streets.length;
+    const adoptedStreets = streets.filter((s) => s.status === "adopted").length;
+    const availableStreets = streets.filter((s) => s.status === "available").length;
+
+    const adoptionRate = totalStreets > 0 ? ((adoptedStreets / totalStreets) * 100).toFixed(2) : 0;
+
+    // Task statistics
+    const totalTasks = tasks.length;
+    const completedTasks = tasks.filter((t) => t.status === "completed").length;
+    const pendingTasks = tasks.filter((t) => t.status === "pending").length;
+    const inProgressTasks = tasks.filter((t) => t.status === "in_progress").length;
+
+    const completionRate = totalTasks > 0 ? ((completedTasks / totalTasks) * 100).toFixed(2) : 0;
+
+    // Top streets by task completion
+    const streetTaskCounts = {};
+    tasks
+      .filter((t) => t.status === "completed" && t.street?.streetId)
+      .forEach((task) => {
+        const streetId = task.street.streetId;
+        if (!streetTaskCounts[streetId]) {
+          streetTaskCounts[streetId] = {
+            streetId,
+            streetName: task.street.name,
+            count: 0,
+          };
+        }
+        streetTaskCounts[streetId].count++;
+      });
+
+    const topStreets = Object.values(streetTaskCounts)
+      .sort((a, b) => b.count - a.count)
+      .slice(0, 10);
+
+    res.json({
+      adoption: {
+        totalStreets,
+        adoptedStreets,
+        availableStreets,
+        adoptionRate: parseFloat(adoptionRate),
+      },
+      tasks: {
+        totalTasks,
+        completedTasks,
+        pendingTasks,
+        inProgressTasks,
+        completionRate: parseFloat(completionRate),
+      },
+      topStreets,
+      timeframe,
+    });
+  }),
+);
+
+module.exports = router;

backend/routes/badges.js

@@ -4,6 +4,7 @@ const UserBadge = require("../models/UserBadge");
 const auth = require("../middleware/auth");
 const { asyncHandler } = require("../middleware/errorHandler");
 const { getUserBadgeProgress } = require("../services/gamificationService");
+const { getCacheMiddleware } = require("../middleware/cache");
 
 const router = express.Router();
 
@@ -13,8 +14,9 @@ const router = express.Router();
  */
 router.get(
   "/",
+  getCacheMiddleware(600), // 10 minute cache
   asyncHandler(async (req, res) => {
-    const badges = await Badge.find({ type: "badge" });
+    const badges = await Badge.findAll();
     // Sort by order and rarity in JavaScript since CouchDB doesn't support complex sorting
     badges.sort((a, b) => {
       if (a.order !== b.order) return a.order - b.order;
@@ -31,6 +33,7 @@ router.get(
 router.get(
   "/progress",
   auth,
+  getCacheMiddleware(600), // 10 minute cache
   asyncHandler(async (req, res) => {
     const progress = await getUserBadgeProgress(req.user.id);
     res.json(progress);
@@ -38,11 +41,12 @@ router.get(
 );
 
 /**
- * GET /api/badges/users/:userId
- * Get badges earned by a specific user
+ * GET /api/users/:userId/badges
+ * Get badges earned by a specific user with progress
  */
 router.get(
   "/users/:userId",
+  getCacheMiddleware(600), // 10 minute cache
   asyncHandler(async (req, res) => {
     const { userId } = req.params;
 
@@ -67,6 +71,7 @@ router.get(
  */
 router.get(
   "/:badgeId",
+  getCacheMiddleware(600), // 10 minute cache
   asyncHandler(async (req, res) => {
     const { badgeId } = req.params;
 

backend/routes/leaderboard.js

@@ -0,0 +1,200 @@
+const express = require("express");
+const router = express.Router();
+const auth = require("../middleware/auth");
+const { getCacheMiddleware, invalidateCacheByPattern } = require("../middleware/cache");
+const gamificationService = require("../services/gamificationService");
+const User = require("../models/User");
+const logger = require("../utils/logger");
+
+/**
+ * @route   GET /api/leaderboard/global
+ * @desc    Get global leaderboard (all time)
+ * @access  Public
+ * @query   limit (default 100), offset (default 0)
+ */
+router.get("/global", getCacheMiddleware(300), async (req, res) => {
+  try {
+    const limit = Math.min(parseInt(req.query.limit) || 100, 500);
+    const offset = parseInt(req.query.offset) || 0;
+
+    logger.info("Fetching global leaderboard", { limit, offset });
+
+    const leaderboard = await gamificationService.getGlobalLeaderboard(limit, offset);
+
+    res.json({
+      success: true,
+      count: leaderboard.length,
+      limit,
+      offset,
+      data: leaderboard
+    });
+  } catch (error) {
+    logger.error("Error fetching global leaderboard", error);
+    res.status(500).json({
+      success: false,
+      msg: "Server error fetching global leaderboard",
+      error: error.message
+    });
+  }
+});
+
+/**
+ * @route   GET /api/leaderboard/weekly
+ * @desc    Get weekly leaderboard
+ * @access  Public
+ * @query   limit (default 100), offset (default 0)
+ */
+router.get("/weekly", getCacheMiddleware(300), async (req, res) => {
+  try {
+    const limit = Math.min(parseInt(req.query.limit) || 100, 500);
+    const offset = parseInt(req.query.offset) || 0;
+
+    logger.info("Fetching weekly leaderboard", { limit, offset });
+
+    const leaderboard = await gamificationService.getWeeklyLeaderboard(limit, offset);
+
+    res.json({
+      success: true,
+      count: leaderboard.length,
+      limit,
+      offset,
+      timeframe: "week",
+      data: leaderboard
+    });
+  } catch (error) {
+    logger.error("Error fetching weekly leaderboard", error);
+    res.status(500).json({
+      success: false,
+      msg: "Server error fetching weekly leaderboard",
+      error: error.message
+    });
+  }
+});
+
+/**
+ * @route   GET /api/leaderboard/monthly
+ * @desc    Get monthly leaderboard
+ * @access  Public
+ * @query   limit (default 100), offset (default 0)
+ */
+router.get("/monthly", getCacheMiddleware(300), async (req, res) => {
+  try {
+    const limit = Math.min(parseInt(req.query.limit) || 100, 500);
+    const offset = parseInt(req.query.offset) || 0;
+
+    logger.info("Fetching monthly leaderboard", { limit, offset });
+
+    const leaderboard = await gamificationService.getMonthlyLeaderboard(limit, offset);
+
+    res.json({
+      success: true,
+      count: leaderboard.length,
+      limit,
+      offset,
+      timeframe: "month",
+      data: leaderboard
+    });
+  } catch (error) {
+    logger.error("Error fetching monthly leaderboard", error);
+    res.status(500).json({
+      success: false,
+      msg: "Server error fetching monthly leaderboard",
+      error: error.message
+    });
+  }
+});
+
+/**
+ * @route   GET /api/leaderboard/friends
+ * @desc    Get friends leaderboard (requires auth)
+ * @access  Private
+ * @query   limit (default 100), offset (default 0)
+ */
+router.get("/friends", auth, getCacheMiddleware(300), async (req, res) => {
+  try {
+    const limit = Math.min(parseInt(req.query.limit) || 100, 500);
+    const offset = parseInt(req.query.offset) || 0;
+    const userId = req.user.id;
+
+    logger.info("Fetching friends leaderboard", { userId, limit, offset });
+
+    const leaderboard = await gamificationService.getFriendsLeaderboard(userId, limit, offset);
+
+    res.json({
+      success: true,
+      count: leaderboard.length,
+      limit,
+      offset,
+      data: leaderboard
+    });
+  } catch (error) {
+    logger.error("Error fetching friends leaderboard", error);
+    res.status(500).json({
+      success: false,
+      msg: "Server error fetching friends leaderboard",
+      error: error.message
+    });
+  }
+});
+
+/**
+ * @route   GET /api/leaderboard/user/:userId
+ * @desc    Get user's rank and position in leaderboard
+ * @access  Public
+ */
+router.get("/user/:userId", getCacheMiddleware(300), async (req, res) => {
+  try {
+    const { userId } = req.params;
+    const timeframe = req.query.timeframe || "all"; // all, week, month
+
+    logger.info("Fetching user leaderboard position", { userId, timeframe });
+
+    const userPosition = await gamificationService.getUserLeaderboardPosition(userId, timeframe);
+
+    if (!userPosition) {
+      return res.status(404).json({
+        success: false,
+        msg: "User not found or has no points"
+      });
+    }
+
+    res.json({
+      success: true,
+      data: userPosition
+    });
+  } catch (error) {
+    logger.error("Error fetching user leaderboard position", error);
+    res.status(500).json({
+      success: false,
+      msg: "Server error fetching user position",
+      error: error.message
+    });
+  }
+});
+
+/**
+ * @route   GET /api/leaderboard/stats
+ * @desc    Get leaderboard statistics
+ * @access  Public
+ */
+router.get("/stats", getCacheMiddleware(300), async (req, res) => {
+  try {
+    logger.info("Fetching leaderboard statistics");
+
+    const stats = await gamificationService.getLeaderboardStats();
+
+    res.json({
+      success: true,
+      data: stats
+    });
+  } catch (error) {
+    logger.error("Error fetching leaderboard statistics", error);
+    res.status(500).json({
+      success: false,
+      msg: "Server error fetching leaderboard statistics",
+      error: error.message
+    });
+  }
+});
+
+module.exports = router;

backend/routes/profile.js

@@ -0,0 +1,126 @@
+const express = require("express");
+const User = require("../models/User");
+const auth = require("../middleware/auth");
+const { asyncHandler } = require("../middleware/errorHandler");
+const { upload, handleUploadError } = require("../middleware/upload");
+const { uploadImage, deleteImage } = require("../config/cloudinary");
+const { validateProfile } = require("../middleware/validators/profileValidator");
+const { userIdValidation } = require("../middleware/validators/userValidator");
+
+const router = express.Router();
+
+// GET user profile
+router.get(
+  "/:userId",
+  auth,
+  userIdValidation,
+  asyncHandler(async (req, res) => {
+    const { userId } = req.params;
+    const user = await User.findById(userId);
+
+    if (!user) {
+      return res.status(404).json({ msg: "User not found" });
+    }
+
+    if (user.privacySettings.profileVisibility === "private" && req.user.id !== userId) {
+      return res.status(403).json({ msg: "This profile is private" });
+    }
+
+    res.json(user.toSafeObject());
+  })
+);
+
+// PUT update user profile
+router.put(
+  "/",
+  auth,
+  validateProfile,
+  asyncHandler(async (req, res) => {
+    const userId = req.user.id;
+    const {
+      bio,
+      location,
+      website,
+      social,
+      privacySettings,
+      preferences,
+    } = req.body;
+
+    const user = await User.findById(userId);
+    if (!user) {
+      return res.status(404).json({ msg: "User not found" });
+    }
+
+    // Update fields
+    if (bio !== undefined) user.bio = bio;
+    if (location !== undefined) user.location = location;
+    if (website !== undefined) user.website = website;
+    if (social !== undefined) user.social = { ...user.social, ...social };
+    if (privacySettings !== undefined) user.privacySettings = { ...user.privacySettings, ...privacySettings };
+    if (preferences !== undefined) user.preferences = { ...user.preferences, ...preferences };
+
+    const updatedUser = await user.save();
+
+    res.json(updatedUser.toSafeObject());
+  })
+);
+
+// POST upload avatar
+router.post(
+  "/avatar",
+  auth,
+  upload.single("avatar"),
+  handleUploadError,
+  asyncHandler(async (req, res) => {
+    if (!req.file) {
+      return res.status(400).json({ msg: "No image file provided" });
+    }
+
+    const user = await User.findById(req.user.id);
+    if (!user) {
+      return res.status(404).json({ msg: "User not found" });
+    }
+
+    if (user.cloudinaryPublicId) {
+      await deleteImage(user.cloudinaryPublicId);
+    }
+
+    const result = await uploadImage(
+      req.file.buffer,
+      "adopt-a-street/avatars"
+    );
+
+    user.avatar = result.secure_url;
+    user.cloudinaryPublicId = result.public_id;
+    const updatedUser = await user.save();
+
+    res.json({ 
+        msg: "Avatar updated successfully",
+        avatar: updatedUser.avatar 
+    });
+  })
+);
+
+// DELETE remove avatar
+router.delete(
+  "/avatar",
+  auth,
+  asyncHandler(async (req, res) => {
+    const user = await User.findById(req.user.id);
+    if (!user) {
+      return res.status(404).json({ msg: "User not found" });
+    }
+
+    if (user.cloudinaryPublicId) {
+      await deleteImage(user.cloudinaryPublicId);
+      user.avatar = null;
+      user.cloudinaryPublicId = null;
+      await user.save();
+    }
+
+    res.json({ msg: "Avatar removed successfully" });
+  })
+);
+
+module.exports = router;
+

backend/routes/users.js

@@ -4,8 +4,6 @@ const Street = require("../models/Street");
 const auth = require("../middleware/auth");
 const { asyncHandler } = require("../middleware/errorHandler");
 const { userIdValidation } = require("../middleware/validators/userValidator");
-const { upload, handleUploadError } = require("../middleware/upload");
-const { uploadImage, deleteImage } = require("../config/cloudinary");
 
 const router = express.Router();
 
@@ -38,7 +36,7 @@ router.get(
     }
 
     const userWithStreets = {
-      ...user,
+      ...user.toSafeObject(),
       adoptedStreets,
     };
 
@@ -46,71 +44,4 @@ router.get(
   }),
 );
 
-// Upload profile picture
-router.post(
-  "/profile-picture",
-  auth,
-  upload.single("image"),
-  handleUploadError,
-  asyncHandler(async (req, res) => {
-    if (!req.file) {
-      return res.status(400).json({ msg: "No image file provided" });
-    }
-
-    const user = await User.findById(req.user.id);
-    if (!user) {
-      return res.status(404).json({ msg: "User not found" });
-    }
-
-    // Delete old profile picture if exists
-    if (user.cloudinaryPublicId) {
-      await deleteImage(user.cloudinaryPublicId);
-    }
-
-    // Upload new image to Cloudinary
-    const result = await uploadImage(
-      req.file.buffer,
-      "adopt-a-street/profiles",
-    );
-
-    // Update user with new profile picture
-    const updatedUser = await User.update(req.user.id, {
-      profilePicture: result.url,
-      cloudinaryPublicId: result.publicId,
-    });
-
-    res.json({
-      msg: "Profile picture updated successfully",
-      profilePicture: updatedUser.profilePicture,
-    });
-  }),
-);
-
-// Delete profile picture
-router.delete(
-  "/profile-picture",
-  auth,
-  asyncHandler(async (req, res) => {
-    const user = await User.findById(req.user.id);
-    if (!user) {
-      return res.status(404).json({ msg: "User not found" });
-    }
-
-    if (!user.cloudinaryPublicId) {
-      return res.status(400).json({ msg: "No profile picture to delete" });
-    }
-
-    // Delete image from Cloudinary
-    await deleteImage(user.cloudinaryPublicId);
-
-    // Remove from user
-    await User.update(req.user.id, {
-      profilePicture: undefined,
-      cloudinaryPublicId: undefined,
-    });
-
-    res.json({ msg: "Profile picture deleted successfully" });
-  }),
-);
-
 module.exports = router;

backend/server.js

@@ -137,6 +137,7 @@ const aiRoutes = require("./routes/ai");
 const paymentRoutes = require("./routes/payments");
 const userRoutes = require("./routes/users");
 const cacheRoutes = require("./routes/cache");
+const profileRoutes = require("./routes/profile");
 
 // Apply rate limiters
 app.use("/api/auth/register", authLimiter);
@@ -238,6 +239,8 @@ app.use("/api/ai", aiRoutes);
 app.use("/api/payments", paymentRoutes);
 app.use("/api/users", userRoutes);
 app.use("/api/cache", cacheRoutes);
+app.use("/api/analytics", analyticsRoutes);
+app.use("/api/leaderboard", leaderboardRoutes);
 
 app.get("/", (req, res) => {
   res.send("Street Adoption App Backend");

backend/services/gamificationService.js

@@ -113,14 +113,14 @@ async function checkAndAwardBadges(userId, userPoints = null) {
     // Check each badge criteria
     for (const badge of allBadges) {
       // Skip if user already has this badge
-      if (userBadges.some(ub => ub.badgeId === badge._id)) {
+      if (userBadges.some(ub => ub.badge?._id === badge._id || ub.badge === badge._id)) {
         continue;
       }
 
       let qualifies = false;
 
       // Check different badge criteria
-      switch (badge.criteria.type) {
+      switch (badge.criteria?.type) {
         case 'points_earned':
           qualifies = userPoints >= badge.criteria.threshold;
           break;
@@ -128,13 +128,13 @@ async function checkAndAwardBadges(userId, userPoints = null) {
           qualifies = userStats.streetAdoptions >= badge.criteria.threshold;
           break;
         case 'task_completions':
-          qualifies = userStats.taskCompletions >= badge.criteria.threshold;
+          qualifies = userStats.tasksCompleted >= badge.criteria.threshold;
           break;
         case 'post_creations':
-          qualifies = userStats.postCreations >= badge.criteria.threshold;
+          qualifies = userStats.postsCreated >= badge.criteria.threshold;
           break;
         case 'event_participations':
-          qualifies = userStats.eventParticipations >= badge.criteria.threshold;
+          qualifies = userStats.eventsParticipated >= badge.criteria.threshold;
           break;
         case 'consecutive_days':
           qualifies = userStats.consecutiveDays >= badge.criteria.threshold;
@@ -168,9 +168,9 @@ async function awardBadge(userId, badgeId) {
 
     // Create user badge record
     const userBadge = await UserBadge.create({
-      userId: userId,
-      badgeId: badgeId,
-      awardedAt: new Date().toISOString(),
+      user: userId,
+      badge: badgeId,
+      earnedAt: new Date().toISOString(),
     });
 
     // Award points for earning badge (if it's a rare or higher badge)
@@ -205,16 +205,19 @@ async function awardBadge(userId, badgeId) {
  */
 async function getUserStats(userId) {
   try {
-    // This would typically involve querying various collections
-    // For now, return basic stats - this should be enhanced
     const user = await User.findById(userId);
+    if (!user) {
+      throw new Error("User not found");
+    }
     
     return {
-      streetAdoptions: 0, // Would query Street collection
-      taskCompletions: 0, // Would query Task collection
-      postCreations: 0, // Would query Post collection
-      eventParticipations: 0, // Would query Event participation
-      consecutiveDays: 0, // Would calculate from login history
+      points: user.points || 0,
+      streetsAdopted: user.stats?.streetsAdopted || 0,
+      tasksCompleted: user.stats?.tasksCompleted || 0,
+      postsCreated: user.stats?.postsCreated || 0,
+      eventsParticipated: user.stats?.eventsParticipated || 0,
+      badgesEarned: user.stats?.badgesEarned || 0,
+      consecutiveDays: user.stats?.consecutiveDays || 0,
     };
   } catch (error) {
     console.error("Error getting user stats:", error);
@@ -222,6 +225,71 @@ async function getUserStats(userId) {
   }
 }
 
+/**
+ * Get user's badge progress for all badges (earned and unearned)
+ */
+async function getUserBadgeProgress(userId) {
+  try {
+    const allBadges = await Badge.findAll();
+    const userStats = await getUserStats(userId);
+    const userEarnedBadges = await UserBadge.findByUser(userId);
+
+    const badgeProgress = allBadges.map(badge => {
+      const earnedBadge = userEarnedBadges.find(ub => ub.badge?._id === badge._id || ub.badge === badge._id);
+      const isEarned = !!earnedBadge;
+      let progress = 0;
+      let threshold = badge.criteria?.threshold || 0;
+
+      if (isEarned) {
+        progress = threshold; // If earned, progress is full
+      } else if (badge.criteria?.type) {
+        switch (badge.criteria.type) {
+          case 'points_earned':
+            progress = userStats.points || 0;
+            break;
+          case 'street_adoptions':
+            progress = userStats.streetsAdopted;
+            break;
+          case 'task_completions':
+            progress = userStats.tasksCompleted;
+            break;
+          case 'post_creations':
+            progress = userStats.postsCreated;
+            break;
+          case 'event_participations':
+            progress = userStats.eventsParticipated;
+            break;
+          case 'consecutive_days':
+            progress = userStats.consecutiveDays;
+            break;
+          case 'special':
+            progress = 0; // Special badges have no progress bar
+            threshold = 1;
+            break;
+          default:
+            progress = 0;
+        }
+      }
+
+      // Ensure progress doesn't exceed threshold
+      progress = Math.min(progress, threshold);
+
+      return {
+        ...badge,
+        isEarned,
+        progress,
+        threshold,
+        earnedAt: isEarned ? earnedBadge.earnedAt : null,
+      };
+    });
+
+    return badgeProgress;
+  } catch (error) {
+    console.error("Error getting user badge progress:", error);
+    throw error;
+  }
+}
+
 /**
  * Get user's badges
  */
@@ -231,11 +299,13 @@ async function getUserBadges(userId) {
     const badges = [];
 
     for (const userBadge of userBadges) {
-      const badge = await Badge.findById(userBadge.badgeId);
+      const badgeData = userBadge.badge;
+      // If badge is already populated (object), use it; otherwise fetch it
+      const badge = typeof badgeData === 'object' && badgeData._id ? badgeData : await Badge.findById(badgeData);
       if (badge) {
         badges.push({
           ...badge,
-          awardedAt: userBadge.awardedAt,
+          earnedAt: userBadge.earnedAt,
         });
       }
     }
@@ -301,6 +371,455 @@ async function getLeaderboard(limit = 10) {
   }
 }
 
+/**
+ * Get global leaderboard (all time)
+ * @param {number} limit - Number of users to return
+ * @param {number} offset - Offset for pagination
+ * @returns {Promise<Array>} Leaderboard data
+ */
+async function getGlobalLeaderboard(limit = 100, offset = 0) {
+  try {
+    const couchdbService = require("./couchdbService");
+    const Street = require("../models/Street");
+    const Task = require("../models/Task");
+    
+    // Get all users sorted by points
+    const result = await couchdbService.find({
+      selector: {
+        type: "user",
+        points: { $gt: 0 }
+      },
+      sort: [{ points: "desc" }],
+      limit: limit,
+      skip: offset
+    });
+
+    // Enrich with stats and badges
+    const leaderboard = await Promise.all(result.map(async (user, index) => {
+      // Get user badges
+      const userBadges = await UserBadge.findByUser(user._id);
+      const badges = await Promise.all(userBadges.map(async (ub) => {
+        const badgeData = ub.badge;
+        const badge = typeof badgeData === 'object' && badgeData._id ? badgeData : await Badge.findById(badgeData);
+        return badge ? {
+          _id: badge._id,
+          name: badge.name,
+          icon: badge.icon,
+          rarity: badge.rarity
+        } : null;
+      }));
+
+      return {
+        rank: offset + index + 1,
+        userId: user._id,
+        username: user.name,
+        avatar: user.profilePicture || null,
+        points: user.points || 0,
+        streetsAdopted: user.stats?.streetsAdopted || user.adoptedStreets?.length || 0,
+        tasksCompleted: user.stats?.tasksCompleted || user.completedTasks?.length || 0,
+        badges: badges.filter(b => b !== null)
+      };
+    }));
+
+    return leaderboard;
+  } catch (error) {
+    console.error("Error getting global leaderboard:", error);
+    throw error;
+  }
+}
+
+/**
+ * Get weekly leaderboard
+ * @param {number} limit - Number of users to return
+ * @param {number} offset - Offset for pagination
+ * @returns {Promise<Array>} Leaderboard data
+ */
+async function getWeeklyLeaderboard(limit = 100, offset = 0) {
+  try {
+    const couchdbService = require("./couchdbService");
+    
+    // Calculate start of week (Monday 00:00:00)
+    const now = new Date();
+    const dayOfWeek = now.getDay();
+    const daysToMonday = dayOfWeek === 0 ? 6 : dayOfWeek - 1;
+    const startOfWeek = new Date(now);
+    startOfWeek.setDate(now.getDate() - daysToMonday);
+    startOfWeek.setHours(0, 0, 0, 0);
+
+    // Get all point transactions since start of week
+    const transactions = await couchdbService.find({
+      selector: {
+        type: "point_transaction",
+        createdAt: { $gte: startOfWeek.toISOString() }
+      }
+    });
+
+    // Aggregate points by user
+    const userPointsMap = {};
+    transactions.forEach(transaction => {
+      if (!userPointsMap[transaction.user]) {
+        userPointsMap[transaction.user] = 0;
+      }
+      userPointsMap[transaction.user] += transaction.amount;
+    });
+
+    // Convert to array and sort
+    const userPoints = Object.entries(userPointsMap)
+      .map(([userId, points]) => ({ userId, points }))
+      .filter(entry => entry.points > 0)
+      .sort((a, b) => b.points - a.points)
+      .slice(offset, offset + limit);
+
+    // Enrich with user data
+    const leaderboard = await Promise.all(userPoints.map(async (entry, index) => {
+      const user = await User.findById(entry.userId);
+      if (!user) return null;
+
+    // Get user badges
+    const userBadges = await UserBadge.findByUser(userId);
+    const badges = await Promise.all(userBadges.map(async (ub) => {
+      const badgeData = ub.badge;
+      const badge = typeof badgeData === 'object' && badgeData._id ? badgeData : await Badge.findById(badgeData);
+      return badge ? {
+        _id: badge._id,
+        name: badge.name,
+        icon: badge.icon,
+        rarity: badge.rarity
+      } : null;
+    }));
+
+      return {
+        rank: offset + index + 1,
+        userId: user._id,
+        username: user.name,
+        avatar: user.profilePicture || null,
+        points: entry.points,
+        streetsAdopted: user.stats?.streetsAdopted || user.adoptedStreets?.length || 0,
+        tasksCompleted: user.stats?.tasksCompleted || user.completedTasks?.length || 0,
+        badges: badges.filter(b => b !== null)
+      };
+    }));
+
+    return leaderboard.filter(entry => entry !== null);
+  } catch (error) {
+    console.error("Error getting weekly leaderboard:", error);
+    throw error;
+  }
+}
+
+/**
+ * Get monthly leaderboard
+ * @param {number} limit - Number of users to return
+ * @param {number} offset - Offset for pagination
+ * @returns {Promise<Array>} Leaderboard data
+ */
+async function getMonthlyLeaderboard(limit = 100, offset = 0) {
+  try {
+    const couchdbService = require("./couchdbService");
+    
+    // Calculate start of month
+    const now = new Date();
+    const startOfMonth = new Date(now.getFullYear(), now.getMonth(), 1);
+
+    // Get all point transactions since start of month
+    const transactions = await couchdbService.find({
+      selector: {
+        type: "point_transaction",
+        createdAt: { $gte: startOfMonth.toISOString() }
+      }
+    });
+
+    // Aggregate points by user
+    const userPointsMap = {};
+    transactions.forEach(transaction => {
+      if (!userPointsMap[transaction.user]) {
+        userPointsMap[transaction.user] = 0;
+      }
+      userPointsMap[transaction.user] += transaction.amount;
+    });
+
+    // Convert to array and sort
+    const userPoints = Object.entries(userPointsMap)
+      .map(([userId, points]) => ({ userId, points }))
+      .filter(entry => entry.points > 0)
+      .sort((a, b) => b.points - a.points)
+      .slice(offset, offset + limit);
+
+    // Enrich with user data
+    const leaderboard = await Promise.all(userPoints.map(async (entry, index) => {
+      const user = await User.findById(entry.userId);
+      if (!user) return null;
+
+      // Get user badges
+      const userBadges = await UserBadge.findByUser(user._id);
+      const badges = await Promise.all(userBadges.slice(0, 5).map(async (ub) => {
+        const badgeData = ub.badge;
+        const badge = typeof badgeData === 'object' && badgeData._id ? badgeData : await Badge.findById(badgeData);
+        return badge ? {
+          _id: badge._id,
+          name: badge.name,
+          icon: badge.icon,
+          rarity: badge.rarity
+        } : null;
+      }));
+
+      return {
+        rank: offset + index + 1,
+        userId: user._id,
+        username: user.name,
+        avatar: user.profilePicture || null,
+        points: entry.points,
+        streetsAdopted: user.stats?.streetsAdopted || user.adoptedStreets?.length || 0,
+        tasksCompleted: user.stats?.tasksCompleted || user.completedTasks?.length || 0,
+        badges: badges.filter(b => b !== null)
+      };
+    }));
+
+    return leaderboard.filter(entry => entry !== null);
+  } catch (error) {
+    console.error("Error getting monthly leaderboard:", error);
+    throw error;
+  }
+}
+
+/**
+ * Get friends leaderboard
+ * @param {string} userId - User ID
+ * @param {number} limit - Number of users to return
+ * @param {number} offset - Offset for pagination
+ * @returns {Promise<Array>} Leaderboard data
+ */
+async function getFriendsLeaderboard(userId, limit = 100, offset = 0) {
+  try {
+    const user = await User.findById(userId);
+    if (!user) {
+      throw new Error("User not found");
+    }
+
+    // For now, return empty array as friends system isn't implemented
+    // In future, would get user's friends list and filter leaderboard
+    const friendIds = user.friends || [];
+    
+    if (friendIds.length === 0) {
+      // Include self if no friends
+      friendIds.push(userId);
+    }
+
+    const couchdbService = require("./couchdbService");
+    
+    // Get friends' data
+    const friends = await couchdbService.find({
+      selector: {
+        type: "user",
+        _id: { $in: friendIds }
+      }
+    });
+
+    // Sort by points
+    const sortedFriends = friends
+      .sort((a, b) => (b.points || 0) - (a.points || 0))
+      .slice(offset, offset + limit);
+
+    // Enrich with badges
+    const leaderboard = await Promise.all(sortedFriends.map(async (friend, index) => {
+      const userBadges = await UserBadge.findByUser(friend._id);
+      const badges = await Promise.all(userBadges.slice(0, 5).map(async (ub) => {
+        const badgeData = ub.badge;
+        const badge = typeof badgeData === 'object' && badgeData._id ? badgeData : await Badge.findById(badgeData);
+        return badge ? {
+          _id: badge._id,
+          name: badge.name,
+          icon: badge.icon,
+          rarity: badge.rarity
+        } : null;
+      }));
+
+      return {
+        rank: offset + index + 1,
+        userId: friend._id,
+        username: friend.name,
+        avatar: friend.profilePicture || null,
+        points: friend.points || 0,
+        streetsAdopted: friend.stats?.streetsAdopted || friend.adoptedStreets?.length || 0,
+        tasksCompleted: friend.stats?.tasksCompleted || friend.completedTasks?.length || 0,
+        badges: badges.filter(b => b !== null),
+        isFriend: true
+      };
+    }));
+
+    return leaderboard;
+  } catch (error) {
+    console.error("Error getting friends leaderboard:", error);
+    throw error;
+  }
+}
+
+/**
+ * Get user's leaderboard position
+ * @param {string} userId - User ID
+ * @param {string} timeframe - 'all', 'week', or 'month'
+ * @returns {Promise<Object>} User's position data
+ */
+async function getUserLeaderboardPosition(userId, timeframe = "all") {
+  try {
+    const user = await User.findById(userId);
+    if (!user) {
+      return null;
+    }
+
+    let rank = 0;
+    let totalUsers = 0;
+    let userPoints = 0;
+
+    const couchdbService = require("./couchdbService");
+
+    if (timeframe === "all") {
+      // Get all users with points
+      const allUsers = await couchdbService.find({
+        selector: {
+          type: "user",
+          points: { $gt: 0 }
+        },
+        sort: [{ points: "desc" }]
+      });
+
+      totalUsers = allUsers.length;
+      userPoints = user.points || 0;
+      
+      // Find user's rank
+      rank = allUsers.findIndex(u => u._id === userId) + 1;
+    } else if (timeframe === "week" || timeframe === "month") {
+      // Calculate start date
+      const now = new Date();
+      let startDate;
+      
+      if (timeframe === "week") {
+        const dayOfWeek = now.getDay();
+        const daysToMonday = dayOfWeek === 0 ? 6 : dayOfWeek - 1;
+        startDate = new Date(now);
+        startDate.setDate(now.getDate() - daysToMonday);
+        startDate.setHours(0, 0, 0, 0);
+      } else {
+        startDate = new Date(now.getFullYear(), now.getMonth(), 1);
+      }
+
+      // Get all transactions for period
+      const transactions = await couchdbService.find({
+        selector: {
+          type: "point_transaction",
+          createdAt: { $gte: startDate.toISOString() }
+        }
+      });
+
+      // Aggregate points by user
+      const userPointsMap = {};
+      transactions.forEach(transaction => {
+        if (!userPointsMap[transaction.user]) {
+          userPointsMap[transaction.user] = 0;
+        }
+        userPointsMap[transaction.user] += transaction.amount;
+      });
+
+      // Sort users by points
+      const sortedUsers = Object.entries(userPointsMap)
+        .filter(([_, points]) => points > 0)
+        .sort((a, b) => b[1] - a[1]);
+
+      totalUsers = sortedUsers.length;
+      userPoints = userPointsMap[userId] || 0;
+      rank = sortedUsers.findIndex(([id, _]) => id === userId) + 1;
+    }
+
+      // Get user badges
+      const userBadges = await UserBadge.findByUser(user._id);
+      const badges = await Promise.all(userBadges.slice(0, 5).map(async (ub) => {
+        const badgeData = ub.badge;
+        const badge = typeof badgeData === 'object' && badgeData._id ? badgeData : await Badge.findById(badgeData);
+        return badge ? {
+          _id: badge._id,
+          name: badge.name,
+          icon: badge.icon,
+          rarity: badge.rarity
+        } : null;
+      }));
+
+    return {
+      rank: rank || null,
+      totalUsers,
+      userId: user._id,
+      username: user.name,
+      avatar: user.profilePicture || null,
+      points: userPoints,
+      streetsAdopted: user.stats?.streetsAdopted || user.adoptedStreets?.length || 0,
+      tasksCompleted: user.stats?.tasksCompleted || user.completedTasks?.length || 0,
+      badges: badges.filter(b => b !== null),
+      percentile: totalUsers > 0 ? Math.round((1 - (rank - 1) / totalUsers) * 100) : 0
+    };
+  } catch (error) {
+    console.error("Error getting user leaderboard position:", error);
+    throw error;
+  }
+}
+
+/**
+ * Get leaderboard statistics
+ * @returns {Promise<Object>} Statistics data
+ */
+async function getLeaderboardStats() {
+  try {
+    const couchdbService = require("./couchdbService");
+
+    // Get all users with points
+    const allUsers = await couchdbService.find({
+      selector: {
+        type: "user",
+        points: { $gt: 0 }
+      }
+    });
+
+    // Calculate statistics
+    const totalUsers = allUsers.length;
+    const totalPoints = allUsers.reduce((sum, user) => sum + (user.points || 0), 0);
+    const avgPoints = totalUsers > 0 ? Math.round(totalPoints / totalUsers) : 0;
+    const maxPoints = allUsers.length > 0 ? Math.max(...allUsers.map(u => u.points || 0)) : 0;
+    const minPoints = allUsers.length > 0 ? Math.min(...allUsers.map(u => u.points || 0)) : 0;
+
+    // Get weekly stats
+    const now = new Date();
+    const dayOfWeek = now.getDay();
+    const daysToMonday = dayOfWeek === 0 ? 6 : dayOfWeek - 1;
+    const startOfWeek = new Date(now);
+    startOfWeek.setDate(now.getDate() - daysToMonday);
+    startOfWeek.setHours(0, 0, 0, 0);
+
+    const weeklyTransactions = await couchdbService.find({
+      selector: {
+        type: "point_transaction",
+        createdAt: { $gte: startOfWeek.toISOString() }
+      }
+    });
+
+    const weeklyPoints = weeklyTransactions.reduce((sum, t) => sum + (t.amount || 0), 0);
+    const activeUsersThisWeek = new Set(weeklyTransactions.map(t => t.user)).size;
+
+    return {
+      totalUsers,
+      totalPoints,
+      avgPoints,
+      maxPoints,
+      minPoints,
+      weeklyStats: {
+        totalPoints: weeklyPoints,
+        activeUsers: activeUsersThisWeek,
+        transactions: weeklyTransactions.length
+      }
+    };
+  } catch (error) {
+    console.error("Error getting leaderboard statistics:", error);
+    throw error;
+  }
+}
+
 module.exports = {
   awardPoints,
   getUserPoints,
@@ -308,7 +827,15 @@ module.exports = {
   checkAndAwardBadges,
   awardBadge,
   getUserBadges,
+  getUserBadgeProgress,
+  getUserStats,
   redeemPoints,
   getLeaderboard,
+  getGlobalLeaderboard,
+  getWeeklyLeaderboard,
+  getMonthlyLeaderboard,
+  getFriendsLeaderboard,
+  getUserLeaderboardPosition,
+  getLeaderboardStats,
   POINT_VALUES,
 };

frontend/package-lock.json

@@ -14,6 +14,7 @@
         "@testing-library/react": "^16.2.0",
         "@testing-library/user-event": "^13.5.0",
         "axios": "^1.8.3",
+        "caniuse-lite": "^1.0.30001753",
         "leaflet": "^1.9.4",
         "react": "^19.0.0",
         "react-dom": "^19.0.0",
@@ -21,6 +22,7 @@
         "react-router-dom": "^6.28.0",
         "react-scripts": "5.0.1",
         "react-toastify": "^11.0.5",
+        "recharts": "^3.3.0",
         "socket.io-client": "^4.8.1",
         "web-vitals": "^2.1.4"
       },
@@ -3270,6 +3272,42 @@
         "react-dom": "^19.0.0"
       }
     },
+    "node_modules/@reduxjs/toolkit": {
+      "version": "2.9.2",
+      "resolved": "https://registry.npmjs.org/@reduxjs/toolkit/-/toolkit-2.9.2.tgz",
+      "integrity": "sha512-ZAYu/NXkl/OhqTz7rfPaAhY0+e8Fr15jqNxte/2exKUxvHyQ/hcqmdekiN1f+Lcw3pE+34FCgX+26zcUE3duCg==",
+      "license": "MIT",
+      "dependencies": {
+        "@standard-schema/spec": "^1.0.0",
+        "@standard-schema/utils": "^0.3.0",
+        "immer": "^10.0.3",
+        "redux": "^5.0.1",
+        "redux-thunk": "^3.1.0",
+        "reselect": "^5.1.0"
+      },
+      "peerDependencies": {
+        "react": "^16.9.0 || ^17.0.0 || ^18 || ^19",
+        "react-redux": "^7.2.1 || ^8.1.3 || ^9.0.0"
+      },
+      "peerDependenciesMeta": {
+        "react": {
+          "optional": true
+        },
+        "react-redux": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@reduxjs/toolkit/node_modules/immer": {
+      "version": "10.2.0",
+      "resolved": "https://registry.npmjs.org/immer/-/immer-10.2.0.tgz",
+      "integrity": "sha512-d/+XTN3zfODyjr89gM3mPq1WNX2B8pYsu7eORitdwyA2sBubnTl3laYlBk4sXY5FUa5qTZGBDPJICVbvqzjlbw==",
+      "license": "MIT",
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/immer"
+      }
+    },
     "node_modules/@remix-run/router": {
       "version": "1.23.0",
       "resolved": "https://registry.npmjs.org/@remix-run/router/-/router-1.23.0.tgz",
@@ -3400,6 +3438,18 @@
       "integrity": "sha512-9BCxFwvbGg/RsZK9tjXd8s4UcwR0MWeFQ1XEKIQVVvAGJyINdrqKMcTRyLoK8Rse1GjzLV9cwjWV1olXRWEXVA==",
       "license": "MIT"
     },
+    "node_modules/@standard-schema/spec": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/@standard-schema/spec/-/spec-1.0.0.tgz",
+      "integrity": "sha512-m2bOd0f2RT9k8QJx1JN85cZYyH1RqFBdlwtkSlf4tBDYLCiiZnv1fIIwacK6cqwXavOydf0NPToMQgpKq+dVlA==",
+      "license": "MIT"
+    },
+    "node_modules/@standard-schema/utils": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/@standard-schema/utils/-/utils-0.3.0.tgz",
+      "integrity": "sha512-e7Mew686owMaPJVNNLs55PUvgz371nKgwsc4vxE49zsODpJEnxgxRo2y/OKrqueavXgZNMDVj3DdHFlaSAeU8g==",
+      "license": "MIT"
+    },
     "node_modules/@stripe/stripe-js": {
       "version": "6.0.0",
       "resolved": "https://registry.npmjs.org/@stripe/stripe-js/-/stripe-js-6.0.0.tgz",
@@ -3855,6 +3905,69 @@
         "@types/node": "*"
       }
     },
+    "node_modules/@types/d3-array": {
+      "version": "3.2.2",
+      "resolved": "https://registry.npmjs.org/@types/d3-array/-/d3-array-3.2.2.tgz",
+      "integrity": "sha512-hOLWVbm7uRza0BYXpIIW5pxfrKe0W+D5lrFiAEYR+pb6w3N2SwSMaJbXdUfSEv+dT4MfHBLtn5js0LAWaO6otw==",
+      "license": "MIT"
+    },
+    "node_modules/@types/d3-color": {
+      "version": "3.1.3",
+      "resolved": "https://registry.npmjs.org/@types/d3-color/-/d3-color-3.1.3.tgz",
+      "integrity": "sha512-iO90scth9WAbmgv7ogoq57O9YpKmFBbmoEoCHDB2xMBY0+/KVrqAaCDyCE16dUspeOvIxFFRI+0sEtqDqy2b4A==",
+      "license": "MIT"
+    },
+    "node_modules/@types/d3-ease": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/@types/d3-ease/-/d3-ease-3.0.2.tgz",
+      "integrity": "sha512-NcV1JjO5oDzoK26oMzbILE6HW7uVXOHLQvHshBUW4UMdZGfiY6v5BeQwh9a9tCzv+CeefZQHJt5SRgK154RtiA==",
+      "license": "MIT"
+    },
+    "node_modules/@types/d3-interpolate": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/@types/d3-interpolate/-/d3-interpolate-3.0.4.tgz",
+      "integrity": "sha512-mgLPETlrpVV1YRJIglr4Ez47g7Yxjl1lj7YKsiMCb27VJH9W8NVM6Bb9d8kkpG/uAQS5AmbA48q2IAolKKo1MA==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/d3-color": "*"
+      }
+    },
+    "node_modules/@types/d3-path": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/@types/d3-path/-/d3-path-3.1.1.tgz",
+      "integrity": "sha512-VMZBYyQvbGmWyWVea0EHs/BwLgxc+MKi1zLDCONksozI4YJMcTt8ZEuIR4Sb1MMTE8MMW49v0IwI5+b7RmfWlg==",
+      "license": "MIT"
+    },
+    "node_modules/@types/d3-scale": {
+      "version": "4.0.9",
+      "resolved": "https://registry.npmjs.org/@types/d3-scale/-/d3-scale-4.0.9.tgz",
+      "integrity": "sha512-dLmtwB8zkAeO/juAMfnV+sItKjlsw2lKdZVVy6LRr0cBmegxSABiLEpGVmSJJ8O08i4+sGR6qQtb6WtuwJdvVw==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/d3-time": "*"
+      }
+    },
+    "node_modules/@types/d3-shape": {
+      "version": "3.1.7",
+      "resolved": "https://registry.npmjs.org/@types/d3-shape/-/d3-shape-3.1.7.tgz",
+      "integrity": "sha512-VLvUQ33C+3J+8p+Daf+nYSOsjB4GXp19/S/aGo60m9h1v6XaxjiT82lKVWJCfzhtuZ3yD7i/TPeC/fuKLLOSmg==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/d3-path": "*"
+      }
+    },
+    "node_modules/@types/d3-time": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/@types/d3-time/-/d3-time-3.0.4.tgz",
+      "integrity": "sha512-yuzZug1nkAAaBlBBikKZTgzCeA+k1uy4ZFwWANOfKw5z5LRhV0gNA7gNkKm7HoK+HRN0wX3EkxGk0fpbWhmB7g==",
+      "license": "MIT"
+    },
+    "node_modules/@types/d3-timer": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/@types/d3-timer/-/d3-timer-3.0.2.tgz",
+      "integrity": "sha512-Ps3T8E8dZDam6fUyNiMkekK3XUsaUEik+idO9/YjPtfj2qruF8tFBXS7XhtE4iIXBLxhmLjP3SXpLhVf21I9Lw==",
+      "license": "MIT"
+    },
     "node_modules/@types/eslint": {
       "version": "8.56.12",
       "resolved": "https://registry.npmjs.org/@types/eslint/-/eslint-8.56.12.tgz",
@@ -4116,6 +4229,12 @@
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       "license": "MIT"
     },
+    "node_modules/@types/use-sync-external-store": {
+      "version": "0.0.6",
+      "resolved": "https://registry.npmjs.org/@types/use-sync-external-store/-/use-sync-external-store-0.0.6.tgz",
+      "integrity": "sha512-zFDAD+tlpf2r4asuHEj0XH6pY6i0g5NeAHPn+15wk3BV6JA69eERFXC1gyGThDkVa1zCyKr5jox1+2LbV/AMLg==",
+      "license": "MIT"
+    },
     "node_modules/@types/ws": {
       "version": "8.18.0",
       "resolved": "https://registry.npmjs.org/@types/ws/-/ws-8.18.0.tgz",
@@ -5715,9 +5834,9 @@
       }
     },
     "node_modules/caniuse-lite": {
-      "version": "1.0.30001704",
-      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001704.tgz",
-      "integrity": "sha512-+L2IgBbV6gXB4ETf0keSvLr7JUrRVbIaB/lrQ1+z8mRcQiisG5k+lG6O4n6Y5q6f5EuNfaYXKgymucphlEXQew==",
+      "version": "1.0.30001753",
+      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001753.tgz",
+      "integrity": "sha512-Bj5H35MD/ebaOV4iDLqPEtiliTN29qkGtEHCwawWn4cYm+bPJM2NsaP30vtZcnERClMzp52J4+aw2UNbK4o+zw==",
       "funding": [
         {
           "type": "opencollective",
@@ -6621,6 +6740,127 @@
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       "license": "MIT"
     },
+    "node_modules/d3-array": {
+      "version": "3.2.4",
+      "resolved": "https://registry.npmjs.org/d3-array/-/d3-array-3.2.4.tgz",
+      "integrity": "sha512-tdQAmyA18i4J7wprpYq8ClcxZy3SC31QMeByyCFyRt7BVHdREQZ5lpzoe5mFEYZUWe+oq8HBvk9JjpibyEV4Jg==",
+      "license": "ISC",
+      "dependencies": {
+        "internmap": "1 - 2"
+      },
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/d3-color": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/d3-color/-/d3-color-3.1.0.tgz",
+      "integrity": "sha512-zg/chbXyeBtMQ1LbD/WSoW2DpC3I0mpmPdW+ynRTj/x2DAWYrIY7qeZIHidozwV24m4iavr15lNwIwLxRmOxhA==",
+      "license": "ISC",
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/d3-ease": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/d3-ease/-/d3-ease-3.0.1.tgz",
+      "integrity": "sha512-wR/XK3D3XcLIZwpbvQwQ5fK+8Ykds1ip7A2Txe0yxncXSdq1L9skcG7blcedkOX+ZcgxGAmLX1FrRGbADwzi0w==",
+      "license": "BSD-3-Clause",
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/d3-format": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/d3-format/-/d3-format-3.1.0.tgz",
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+      "license": "ISC",
+      "engines": {
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+      }
+    },
+    "node_modules/d3-interpolate": {
+      "version": "3.0.1",
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+      "license": "ISC",
+      "dependencies": {
+        "d3-color": "1 - 3"
+      },
+      "engines": {
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+      }
+    },
+    "node_modules/d3-path": {
+      "version": "3.1.0",
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+      "license": "ISC",
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+      "license": "ISC",
+      "dependencies": {
+        "d3-array": "2.10.0 - 3",
+        "d3-format": "1 - 3",
+        "d3-interpolate": "1.2.0 - 3",
+        "d3-time": "2.1.1 - 3",
+        "d3-time-format": "2 - 4"
+      },
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/d3-shape": {
+      "version": "3.2.0",
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+      "license": "ISC",
+      "dependencies": {
+        "d3-path": "^3.1.0"
+      },
+      "engines": {
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+    },
+    "node_modules/d3-time": {
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+      "license": "ISC",
+      "dependencies": {
+        "d3-array": "2 - 3"
+      },
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/d3-time-format": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/d3-time-format/-/d3-time-format-4.1.0.tgz",
+      "integrity": "sha512-dJxPBlzC7NugB2PDLwo9Q8JiTR3M3e4/XANkreKSUxF8vvXKqm1Yfq4Q5dl8budlunRVlUUaDUgFt7eA8D6NLg==",
+      "license": "ISC",
+      "dependencies": {
+        "d3-time": "1 - 3"
+      },
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/d3-timer": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/d3-timer/-/d3-timer-3.0.1.tgz",
+      "integrity": "sha512-ndfJ/JxxMd3nw31uyKoY2naivF+r29V+Lc0svZxe1JvvIRmi8hUsrMvdOwgS1o6uBHmiz91geQ0ylPP0aj1VUA==",
+      "license": "ISC",
+      "engines": {
+        "node": ">=12"
+      }
+    },
     "node_modules/damerau-levenshtein": {
       "version": "1.0.8",
       "resolved": "https://registry.npmjs.org/damerau-levenshtein/-/damerau-levenshtein-1.0.8.tgz",
@@ -6715,6 +6955,12 @@
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       "license": "MIT"
     },
+    "node_modules/decimal.js-light": {
+      "version": "2.5.1",
+      "resolved": "https://registry.npmjs.org/decimal.js-light/-/decimal.js-light-2.5.1.tgz",
+      "integrity": "sha512-qIMFpTMZmny+MMIitAB6D7iVPEorVw6YQRWkvarTkT4tBeSLLiHzcwj6q0MmYSFCiVpiqPJTJEYIrpcPzVEIvg==",
+      "license": "MIT"
+    },
     "node_modules/dedent": {
       "version": "0.7.0",
       "resolved": "https://registry.npmjs.org/dedent/-/dedent-0.7.0.tgz",
@@ -7416,6 +7662,16 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/es-toolkit": {
+      "version": "1.41.0",
+      "resolved": "https://registry.npmjs.org/es-toolkit/-/es-toolkit-1.41.0.tgz",
+      "integrity": "sha512-bDd3oRmbVgqZCJS6WmeQieOrzpl3URcWBUVDXxOELlUW2FuW+0glPOz1n0KnRie+PdyvUZcXz2sOn00c6pPRIA==",
+      "license": "MIT",
+      "workspaces": [
+        "docs",
+        "benchmarks"
+      ]
+    },
     "node_modules/escalade": {
       "version": "3.2.0",
       "resolved": "https://registry.npmjs.org/escalade/-/escalade-3.2.0.tgz",
@@ -9602,6 +9858,15 @@
         "node": ">= 0.4"
       }
     },
+    "node_modules/internmap": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/internmap/-/internmap-2.0.3.tgz",
+      "integrity": "sha512-5Hh7Y1wQbvY5ooGgPbDaL5iYLAPzMTUrjMulskHLH6wnv/A+1q5rgEaiuqEjB+oxGXIVZs1FF+R/KPN3ZSQYYg==",
+      "license": "ISC",
+      "engines": {
+        "node": ">=12"
+      }
+    },
     "node_modules/ipaddr.js": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-2.2.0.tgz",
@@ -14442,6 +14707,29 @@
         "react-dom": "^19.0.0"
       }
     },
+    "node_modules/react-redux": {
+      "version": "9.2.0",
+      "resolved": "https://registry.npmjs.org/react-redux/-/react-redux-9.2.0.tgz",
+      "integrity": "sha512-ROY9fvHhwOD9ySfrF0wmvu//bKCQ6AeZZq1nJNtbDC+kk5DuSuNX/n6YWYF/SYy7bSba4D4FSz8DJeKY/S/r+g==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/use-sync-external-store": "^0.0.6",
+        "use-sync-external-store": "^1.4.0"
+      },
+      "peerDependencies": {
+        "@types/react": "^18.2.25 || ^19",
+        "react": "^18.0 || ^19",
+        "redux": "^5.0.0"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "redux": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/react-refresh": {
       "version": "0.11.0",
       "resolved": "https://registry.npmjs.org/react-refresh/-/react-refresh-0.11.0.tgz",
@@ -14604,6 +14892,49 @@
         "node": ">=8.10.0"
       }
     },
+    "node_modules/recharts": {
+      "version": "3.3.0",
+      "resolved": "https://registry.npmjs.org/recharts/-/recharts-3.3.0.tgz",
+      "integrity": "sha512-Vi0qmTB0iz1+/Cz9o5B7irVyUjX2ynvEgImbgMt/3sKRREcUM07QiYjS1QpAVrkmVlXqy5gykq4nGWMz9AS4Rg==",
+      "license": "MIT",
+      "dependencies": {
+        "@reduxjs/toolkit": "1.x.x || 2.x.x",
+        "clsx": "^2.1.1",
+        "decimal.js-light": "^2.5.1",
+        "es-toolkit": "^1.39.3",
+        "eventemitter3": "^5.0.1",
+        "immer": "^10.1.1",
+        "react-redux": "8.x.x || 9.x.x",
+        "reselect": "5.1.1",
+        "tiny-invariant": "^1.3.3",
+        "use-sync-external-store": "^1.2.2",
+        "victory-vendor": "^37.0.2"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "peerDependencies": {
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0",
+        "react-dom": "^16.0.0 || ^17.0.0 || ^18.0.0 || ^19.0.0",
+        "react-is": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"
+      }
+    },
+    "node_modules/recharts/node_modules/eventemitter3": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-5.0.1.tgz",
+      "integrity": "sha512-GWkBvjiSZK87ELrYOSESUYeVIc9mvLLf/nXalMOS5dYrgZq9o5OVkbZAVM06CVxYsCwH9BDZFPlQTlPA1j4ahA==",
+      "license": "MIT"
+    },
+    "node_modules/recharts/node_modules/immer": {
+      "version": "10.2.0",
+      "resolved": "https://registry.npmjs.org/immer/-/immer-10.2.0.tgz",
+      "integrity": "sha512-d/+XTN3zfODyjr89gM3mPq1WNX2B8pYsu7eORitdwyA2sBubnTl3laYlBk4sXY5FUa5qTZGBDPJICVbvqzjlbw==",
+      "license": "MIT",
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/immer"
+      }
+    },
     "node_modules/recursive-readdir": {
       "version": "2.2.3",
       "resolved": "https://registry.npmjs.org/recursive-readdir/-/recursive-readdir-2.2.3.tgz",
@@ -14629,6 +14960,21 @@
         "node": ">=8"
       }
     },
+    "node_modules/redux": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/redux/-/redux-5.0.1.tgz",
+      "integrity": "sha512-M9/ELqF6fy8FwmkpnF0S3YKOqMyoWJ4+CS5Efg2ct3oY9daQvd/Pc71FpGZsVsbl3Cpb+IIcjBDUnnyBdQbq4w==",
+      "license": "MIT"
+    },
+    "node_modules/redux-thunk": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/redux-thunk/-/redux-thunk-3.1.0.tgz",
+      "integrity": "sha512-NW2r5T6ksUKXCabzhL9z+h206HQw/NJkcLm1GPImRQ8IzfXwRGqjVhKJGauHirT0DAuyy6hjdnMZaRoAcy0Klw==",
+      "license": "MIT",
+      "peerDependencies": {
+        "redux": "^5.0.0"
+      }
+    },
     "node_modules/reflect.getprototypeof": {
       "version": "1.0.10",
       "resolved": "https://registry.npmjs.org/reflect.getprototypeof/-/reflect.getprototypeof-1.0.10.tgz",
@@ -14803,6 +15149,12 @@
       "integrity": "sha512-KigOCHcocU3XODJxsu8i/j8T9tzT4adHiecwORRQ0ZZFcp7ahwXuRU1m+yuO90C5ZUyGeGfocHDI14M3L3yDAQ==",
       "license": "MIT"
     },
+    "node_modules/reselect": {
+      "version": "5.1.1",
+      "resolved": "https://registry.npmjs.org/reselect/-/reselect-5.1.1.tgz",
+      "integrity": "sha512-K/BG6eIky/SBpzfHZv/dd+9JBFiS4SWV7FIujVyJRux6e45+73RaUHXLmIR1f7WOMaQ0U1km6qwklRQxpJJY0w==",
+      "license": "MIT"
+    },
     "node_modules/resolve": {
       "version": "1.22.10",
       "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.22.10.tgz",
@@ -16730,6 +17082,12 @@
       "integrity": "sha512-eHY7nBftgThBqOyHGVN+l8gF0BucP09fMo0oO/Lb0w1OF80dJv+lDVpXG60WMQvkcxAkNybKsrEIE3ZtKGmPrA==",
       "license": "MIT"
     },
+    "node_modules/tiny-invariant": {
+      "version": "1.3.3",
+      "resolved": "https://registry.npmjs.org/tiny-invariant/-/tiny-invariant-1.3.3.tgz",
+      "integrity": "sha512-+FbBPE1o9QAYvviau/qC5SE3caw21q3xkvWKBtja5vgqOWIHHJ3ioaq1VPfn/Szqctz2bU/oYeKd9/z5BL+PVg==",
+      "license": "MIT"
+    },
     "node_modules/tldts": {
       "version": "7.0.17",
       "resolved": "https://registry.npmjs.org/tldts/-/tldts-7.0.17.tgz",
@@ -17203,6 +17561,15 @@
         "requires-port": "^1.0.0"
       }
     },
+    "node_modules/use-sync-external-store": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/use-sync-external-store/-/use-sync-external-store-1.6.0.tgz",
+      "integrity": "sha512-Pp6GSwGP/NrPIrxVFAIkOQeyw8lFenOHijQWkUTrDvrF4ALqylP2C/KCkeS9dpUM3KvYRQhna5vt7IL95+ZQ9w==",
+      "license": "MIT",
+      "peerDependencies": {
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"
+      }
+    },
     "node_modules/util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
@@ -17277,6 +17644,28 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/victory-vendor": {
+      "version": "37.3.6",
+      "resolved": "https://registry.npmjs.org/victory-vendor/-/victory-vendor-37.3.6.tgz",
+      "integrity": "sha512-SbPDPdDBYp+5MJHhBCAyI7wKM3d5ivekigc2Dk2s7pgbZ9wIgIBYGVw4zGHBml/qTFbexrofXW6Gu4noGxrOwQ==",
+      "license": "MIT AND ISC",
+      "dependencies": {
+        "@types/d3-array": "^3.0.3",
+        "@types/d3-ease": "^3.0.0",
+        "@types/d3-interpolate": "^3.0.1",
+        "@types/d3-scale": "^4.0.2",
+        "@types/d3-shape": "^3.1.0",
+        "@types/d3-time": "^3.0.0",
+        "@types/d3-timer": "^3.0.0",
+        "d3-array": "^3.1.6",
+        "d3-ease": "^3.0.1",
+        "d3-interpolate": "^3.0.1",
+        "d3-scale": "^4.0.2",
+        "d3-shape": "^3.1.0",
+        "d3-time": "^3.0.0",
+        "d3-timer": "^3.0.1"
+      }
+    },
     "node_modules/w3c-hr-time": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/w3c-hr-time/-/w3c-hr-time-1.0.2.tgz",

frontend/package.json

@@ -17,6 +17,7 @@
     "react-router-dom": "^6.28.0",
     "react-scripts": "5.0.1",
     "react-toastify": "^11.0.5",
+    "recharts": "^3.3.0",
     "socket.io-client": "^4.8.1",
     "web-vitals": "^2.1.4"
   },

frontend/src/App.js

@@ -15,7 +15,9 @@ import SocialFeed from "./components/SocialFeed";
 import Profile from "./components/Profile";
 import Events from "./components/Events";
 import Rewards from "./components/Rewards";
+import Leaderboard from "./components/Leaderboard";
 import Premium from "./components/Premium";
+import Analytics from "./components/Analytics";
 import Navbar from "./components/Navbar";
 import PrivateRoute from "./components/PrivateRoute";
 
@@ -36,7 +38,9 @@ function App() {
                 <Route path="/profile" element={<PrivateRoute><Profile /></PrivateRoute>} />
                 <Route path="/events" element={<PrivateRoute><Events /></PrivateRoute>} />
                 <Route path="/rewards" element={<PrivateRoute><Rewards /></PrivateRoute>} />
+                <Route path="/leaderboard" element={<PrivateRoute><Leaderboard /></PrivateRoute>} />
                 <Route path="/premium" element={<PrivateRoute><Premium /></PrivateRoute>} />
+                <Route path="/analytics" element={<PrivateRoute><Analytics /></PrivateRoute>} />
                 <Route path="/" element={<Navigate to="/map" replace />} />
               </Routes>
             </div>

frontend/src/__tests__/Leaderboard.test.js

@@ -0,0 +1,480 @@
+import React from "react";
+import { render, screen, fireEvent, waitFor } from "@testing-library/react";
+import { BrowserRouter } from "react-router-dom";
+import axios from "axios";
+import { toast } from "react-toastify";
+import Leaderboard from "../components/Leaderboard";
+import { AuthContext } from "../context/AuthContext";
+
+// Mock axios
+jest.mock("axios");
+
+// Mock react-toastify
+jest.mock("react-toastify", () => ({
+  toast: {
+    success: jest.fn(),
+    error: jest.fn(),
+    warning: jest.fn(),
+  },
+}));
+
+// Mock leaderboard data
+const mockLeaderboardData = [
+  {
+    userId: "user1",
+    username: "TopUser",
+    email: "topuser@example.com",
+    points: 1000,
+    streetsAdopted: 5,
+    tasksCompleted: 20,
+    badges: [
+      { name: "Beginner", icon: "🏅" },
+      { name: "Intermediate", icon: "🏆" },
+    ],
+  },
+  {
+    userId: "user2",
+    username: "SecondUser",
+    email: "second@example.com",
+    points: 800,
+    streetsAdopted: 4,
+    tasksCompleted: 15,
+    badges: [{ name: "Beginner", icon: "🏅" }],
+  },
+  {
+    userId: "user3",
+    username: "ThirdUser",
+    email: "third@example.com",
+    points: 600,
+    streetsAdopted: 3,
+    tasksCompleted: 10,
+    badges: [],
+  },
+];
+
+const mockStats = {
+  totalUsers: 100,
+  totalPoints: 50000,
+  averagePoints: 500,
+  maxPoints: 1000,
+  minPoints: 0,
+};
+
+describe("Leaderboard Component", () => {
+  const mockAuthContext = {
+    auth: {
+      isAuthenticated: true,
+      user: {
+        _id: "user1",
+        username: "TopUser",
+        points: 1000,
+      },
+    },
+  };
+
+  const renderLeaderboard = (authContext = mockAuthContext) => {
+    return render(
+      <BrowserRouter>
+        <AuthContext.Provider value={authContext}>
+          <Leaderboard />
+        </AuthContext.Provider>
+      </BrowserRouter>
+    );
+  };
+
+  beforeEach(() => {
+    jest.clearAllMocks();
+    localStorage.setItem("token", "mock-token");
+  });
+
+  afterEach(() => {
+    localStorage.clear();
+  });
+
+  describe("Initial Loading", () => {
+    it("should display loading spinner on initial load", () => {
+      axios.get.mockImplementation(() => new Promise(() => {})); // Never resolves
+      renderLeaderboard();
+
+      expect(screen.getByText(/loading leaderboard/i)).toBeInTheDocument();
+      expect(screen.getByRole("status")).toBeInTheDocument();
+    });
+
+    it("should load global leaderboard by default", async () => {
+      axios.get.mockImplementation((url) => {
+        if (url.includes("/api/leaderboard/global")) {
+          return Promise.resolve({ data: mockLeaderboardData });
+        }
+        if (url.includes("/api/leaderboard/stats")) {
+          return Promise.resolve({ data: mockStats });
+        }
+      });
+
+      renderLeaderboard();
+
+      await waitFor(() => {
+        expect(screen.getByText("TopUser")).toBeInTheDocument();
+      });
+
+      expect(axios.get).toHaveBeenCalledWith(
+        expect.stringContaining("/api/leaderboard/global"),
+        expect.anything()
+      );
+    });
+
+    it("should load leaderboard stats", async () => {
+      axios.get.mockImplementation((url) => {
+        if (url.includes("/api/leaderboard/global")) {
+          return Promise.resolve({ data: mockLeaderboardData });
+        }
+        if (url.includes("/api/leaderboard/stats")) {
+          return Promise.resolve({ data: mockStats });
+        }
+      });
+
+      renderLeaderboard();
+
+      await waitFor(() => {
+        expect(screen.getByText(/total users:/i)).toBeInTheDocument();
+      });
+
+      expect(screen.getByText(/100/)).toBeInTheDocument();
+      expect(screen.getByText(/50,000/)).toBeInTheDocument();
+    });
+  });
+
+  describe("Tab Navigation", () => {
+    beforeEach(() => {
+      axios.get.mockImplementation((url) => {
+        if (url.includes("/api/leaderboard/")) {
+          return Promise.resolve({ data: mockLeaderboardData });
+        }
+        return Promise.resolve({ data: mockStats });
+      });
+    });
+
+    it("should switch to weekly leaderboard when clicking weekly tab", async () => {
+      renderLeaderboard();
+
+      await waitFor(() => {
+        expect(screen.getByText("TopUser")).toBeInTheDocument();
+      });
+
+      const weeklyTab = screen.getByRole("button", { name: /this week/i });
+      fireEvent.click(weeklyTab);
+
+      await waitFor(() => {
+        expect(axios.get).toHaveBeenCalledWith(
+          expect.stringContaining("/api/leaderboard/weekly"),
+          expect.anything()
+        );
+      });
+    });
+
+    it("should switch to monthly leaderboard when clicking monthly tab", async () => {
+      renderLeaderboard();
+
+      await waitFor(() => {
+        expect(screen.getByText("TopUser")).toBeInTheDocument();
+      });
+
+      const monthlyTab = screen.getByRole("button", { name: /this month/i });
+      fireEvent.click(monthlyTab);
+
+      await waitFor(() => {
+        expect(axios.get).toHaveBeenCalledWith(
+          expect.stringContaining("/api/leaderboard/monthly"),
+          expect.anything()
+        );
+      });
+    });
+
+    it("should switch to friends leaderboard when authenticated", async () => {
+      renderLeaderboard();
+
+      await waitFor(() => {
+        expect(screen.getByText("TopUser")).toBeInTheDocument();
+      });
+
+      const friendsTab = screen.getByRole("button", { name: /friends/i });
+      fireEvent.click(friendsTab);
+
+      await waitFor(() => {
+        expect(axios.get).toHaveBeenCalledWith(
+          expect.stringContaining("/api/leaderboard/friends"),
+          expect.objectContaining({
+            headers: { "x-auth-token": "mock-token" },
+          })
+        );
+      });
+    });
+
+    it("should show warning when trying to access friends tab without authentication", async () => {
+      const unauthContext = {
+        auth: {
+          isAuthenticated: false,
+          user: null,
+        },
+      };
+
+      axios.get.mockResolvedValue({ data: mockLeaderboardData });
+      renderLeaderboard(unauthContext);
+
+      await waitFor(() => {
+        expect(screen.getByText("TopUser")).toBeInTheDocument();
+      });
+
+      const friendsTab = screen.getByRole("button", { name: /friends/i });
+      fireEvent.click(friendsTab);
+
+      expect(toast.warning).toHaveBeenCalledWith(
+        "Please login to view friends leaderboard"
+      );
+    });
+  });
+
+  describe("User Display", () => {
+    beforeEach(() => {
+      axios.get.mockImplementation((url) => {
+        if (url.includes("/api/leaderboard/")) {
+          return Promise.resolve({ data: mockLeaderboardData });
+        }
+        return Promise.resolve({ data: mockStats });
+      });
+    });
+
+    it("should display all users in leaderboard", async () => {
+      renderLeaderboard();
+
+      await waitFor(() => {
+        expect(screen.getByText("TopUser")).toBeInTheDocument();
+        expect(screen.getByText("SecondUser")).toBeInTheDocument();
+        expect(screen.getByText("ThirdUser")).toBeInTheDocument();
+      });
+    });
+
+    it("should highlight current user", async () => {
+      renderLeaderboard();
+
+      await waitFor(() => {
+        expect(screen.getByText("TopUser")).toBeInTheDocument();
+      });
+
+      expect(screen.getByText("You")).toBeInTheDocument();
+    });
+
+    it("should display user points", async () => {
+      renderLeaderboard();
+
+      await waitFor(() => {
+        expect(screen.getByText("1,000")).toBeInTheDocument();
+      });
+    });
+
+    it("should display user statistics", async () => {
+      renderLeaderboard();
+
+      await waitFor(() => {
+        expect(screen.getByText("TopUser")).toBeInTheDocument();
+      });
+
+      // Check for streets and tasks counts
+      const statsElements = screen.getAllByText(/5|20/);
+      expect(statsElements.length).toBeGreaterThan(0);
+    });
+
+    it("should display current user points in alert", async () => {
+      renderLeaderboard();
+
+      await waitFor(() => {
+        expect(screen.getByText(/your points:/i)).toBeInTheDocument();
+      });
+
+      expect(screen.getByText("1000")).toBeInTheDocument();
+    });
+  });
+
+  describe("Pagination", () => {
+    beforeEach(() => {
+      axios.get.mockImplementation((url) => {
+        if (url.includes("/api/leaderboard/")) {
+          return Promise.resolve({ data: mockLeaderboardData });
+        }
+        return Promise.resolve({ data: mockStats });
+      });
+    });
+
+    it("should disable previous button on first page", async () => {
+      renderLeaderboard();
+
+      await waitFor(() => {
+        expect(screen.getByText("TopUser")).toBeInTheDocument();
+      });
+
+      const previousButton = screen.getByRole("button", { name: /previous/i });
+      expect(previousButton).toBeDisabled();
+    });
+
+    it("should enable next button when there are more results", async () => {
+      // Mock 50 results to trigger hasMore
+      const largeDataset = Array.from({ length: 50 }, (_, i) => ({
+        userId: `user${i}`,
+        username: `User${i}`,
+        points: 1000 - i * 10,
+        streetsAdopted: 1,
+        tasksCompleted: 1,
+        badges: [],
+      }));
+
+      axios.get.mockImplementation((url) => {
+        if (url.includes("/api/leaderboard/")) {
+          return Promise.resolve({ data: largeDataset });
+        }
+        return Promise.resolve({ data: mockStats });
+      });
+
+      renderLeaderboard();
+
+      await waitFor(() => {
+        expect(screen.getByText("User0")).toBeInTheDocument();
+      });
+
+      const nextButton = screen.getByRole("button", { name: /next/i });
+      expect(nextButton).not.toBeDisabled();
+    });
+
+    it("should load next page when clicking next button", async () => {
+      const largeDataset = Array.from({ length: 50 }, (_, i) => ({
+        userId: `user${i}`,
+        username: `User${i}`,
+        points: 1000 - i * 10,
+        streetsAdopted: 1,
+        tasksCompleted: 1,
+        badges: [],
+      }));
+
+      axios.get.mockImplementation((url) => {
+        if (url.includes("/api/leaderboard/")) {
+          return Promise.resolve({ data: largeDataset });
+        }
+        return Promise.resolve({ data: mockStats });
+      });
+
+      renderLeaderboard();
+
+      await waitFor(() => {
+        expect(screen.getByText("User0")).toBeInTheDocument();
+      });
+
+      const nextButton = screen.getByRole("button", { name: /next/i });
+      fireEvent.click(nextButton);
+
+      await waitFor(() => {
+        expect(axios.get).toHaveBeenCalledWith(
+          expect.stringContaining("offset=50"),
+          expect.anything()
+        );
+      });
+    });
+  });
+
+  describe("Error Handling", () => {
+    it("should display error message when API fails", async () => {
+      axios.get.mockRejectedValue({
+        response: { data: { msg: "Server error" } },
+      });
+
+      renderLeaderboard();
+
+      await waitFor(() => {
+        expect(screen.getByText(/error loading leaderboard/i)).toBeInTheDocument();
+      });
+
+      expect(toast.error).toHaveBeenCalledWith("Server error");
+    });
+
+    it("should show retry button on error", async () => {
+      axios.get.mockRejectedValue({
+        response: { data: { msg: "Server error" } },
+      });
+
+      renderLeaderboard();
+
+      await waitFor(() => {
+        expect(screen.getByRole("button", { name: /retry/i })).toBeInTheDocument();
+      });
+    });
+
+    it("should retry loading when clicking retry button", async () => {
+      axios.get
+        .mockRejectedValueOnce({
+          response: { data: { msg: "Server error" } },
+        })
+        .mockImplementation((url) => {
+          if (url.includes("/api/leaderboard/")) {
+            return Promise.resolve({ data: mockLeaderboardData });
+          }
+          return Promise.resolve({ data: mockStats });
+        });
+
+      renderLeaderboard();
+
+      await waitFor(() => {
+        expect(screen.getByRole("button", { name: /retry/i })).toBeInTheDocument();
+      });
+
+      const retryButton = screen.getByRole("button", { name: /retry/i });
+      fireEvent.click(retryButton);
+
+      await waitFor(() => {
+        expect(screen.getByText("TopUser")).toBeInTheDocument();
+      });
+    });
+  });
+
+  describe("Empty State", () => {
+    it("should display message when leaderboard is empty", async () => {
+      axios.get.mockImplementation((url) => {
+        if (url.includes("/api/leaderboard/")) {
+          return Promise.resolve({ data: [] });
+        }
+        return Promise.resolve({ data: mockStats });
+      });
+
+      renderLeaderboard();
+
+      await waitFor(() => {
+        expect(
+          screen.getByText(/no users to display yet/i)
+        ).toBeInTheDocument();
+      });
+    });
+
+    it("should display friends-specific message when friends leaderboard is empty", async () => {
+      axios.get.mockImplementation((url) => {
+        if (url.includes("/api/leaderboard/friends")) {
+          return Promise.resolve({ data: [] });
+        }
+        if (url.includes("/api/leaderboard/")) {
+          return Promise.resolve({ data: mockLeaderboardData });
+        }
+        return Promise.resolve({ data: mockStats });
+      });
+
+      renderLeaderboard();
+
+      await waitFor(() => {
+        expect(screen.getByText("TopUser")).toBeInTheDocument();
+      });
+
+      const friendsTab = screen.getByRole("button", { name: /friends/i });
+      fireEvent.click(friendsTab);
+
+      await waitFor(() => {
+        expect(
+          screen.getByText(/no friends to display/i)
+        ).toBeInTheDocument();
+      });
+    });
+  });
+});

frontend/src/components/ActivityChart.js

@@ -0,0 +1,83 @@
+import React from "react";
+import {
+  LineChart,
+  Line,
+  BarChart,
+  Bar,
+  XAxis,
+  YAxis,
+  CartesianGrid,
+  Tooltip,
+  Legend,
+  ResponsiveContainer,
+} from "recharts";
+
+const ActivityChart = ({ data, groupBy }) => {
+  // Format period labels based on groupBy
+  const formatPeriod = (period) => {
+    if (!period) return "";
+
+    if (groupBy === "month") {
+      const [year, month] = period.split("-");
+      const date = new Date(year, parseInt(month) - 1);
+      return date.toLocaleDateString("en-US", { month: "short", year: "numeric" });
+    } else if (groupBy === "week") {
+      return new Date(period).toLocaleDateString("en-US", { month: "short", day: "numeric" });
+    } else {
+      return new Date(period).toLocaleDateString("en-US", { month: "short", day: "numeric" });
+    }
+  };
+
+  const chartData = data.map((item) => ({
+    period: formatPeriod(item.period),
+    Tasks: item.tasks,
+    Posts: item.posts,
+    Events: item.events,
+    "Streets Adopted": item.streetsAdopted,
+  }));
+
+  return (
+    <div>
+      <div className="mb-4">
+        <h6>Activity Trends</h6>
+        <ResponsiveContainer width="100%" height={300}>
+          <LineChart data={chartData}>
+            <CartesianGrid strokeDasharray="3 3" />
+            <XAxis dataKey="period" />
+            <YAxis />
+            <Tooltip />
+            <Legend />
+            <Line type="monotone" dataKey="Tasks" stroke="#0d6efd" strokeWidth={2} />
+            <Line type="monotone" dataKey="Posts" stroke="#198754" strokeWidth={2} />
+            <Line type="monotone" dataKey="Events" stroke="#ffc107" strokeWidth={2} />
+            <Line
+              type="monotone"
+              dataKey="Streets Adopted"
+              stroke="#dc3545"
+              strokeWidth={2}
+            />
+          </LineChart>
+        </ResponsiveContainer>
+      </div>
+
+      <div>
+        <h6>Activity Comparison</h6>
+        <ResponsiveContainer width="100%" height={300}>
+          <BarChart data={chartData}>
+            <CartesianGrid strokeDasharray="3 3" />
+            <XAxis dataKey="period" />
+            <YAxis />
+            <Tooltip />
+            <Legend />
+            <Bar dataKey="Tasks" fill="#0d6efd" />
+            <Bar dataKey="Posts" fill="#198754" />
+            <Bar dataKey="Events" fill="#ffc107" />
+            <Bar dataKey="Streets Adopted" fill="#dc3545" />
+          </BarChart>
+        </ResponsiveContainer>
+      </div>
+    </div>
+  );
+};
+
+export default ActivityChart;

frontend/src/components/Analytics.css

@@ -0,0 +1,182 @@
+.analytics-container {
+  padding: 20px;
+  max-width: 1400px;
+  margin: 0 auto;
+}
+
+.analytics-header {
+  margin-bottom: 30px;
+}
+
+.analytics-header h2 {
+  color: #333;
+  margin-bottom: 10px;
+}
+
+.analytics-header p {
+  color: #666;
+  font-size: 14px;
+}
+
+.analytics-tabs {
+  display: flex;
+  gap: 10px;
+  margin-bottom: 30px;
+  border-bottom: 2px solid #e0e0e0;
+  flex-wrap: wrap;
+}
+
+.analytics-tab {
+  padding: 12px 24px;
+  background: none;
+  border: none;
+  border-bottom: 3px solid transparent;
+  cursor: pointer;
+  font-size: 16px;
+  color: #666;
+  transition: all 0.3s ease;
+  margin-bottom: -2px;
+}
+
+.analytics-tab:hover {
+  color: #333;
+  background-color: #f5f5f5;
+}
+
+.analytics-tab.active {
+  color: #28a745;
+  border-bottom-color: #28a745;
+  font-weight: 600;
+}
+
+.timeframe-selector {
+  display: flex;
+  gap: 10px;
+  margin-bottom: 20px;
+  flex-wrap: wrap;
+}
+
+.timeframe-btn {
+  padding: 8px 16px;
+  border: 2px solid #e0e0e0;
+  background: white;
+  border-radius: 20px;
+  cursor: pointer;
+  font-size: 14px;
+  color: #666;
+  transition: all 0.3s ease;
+}
+
+.timeframe-btn:hover {
+  border-color: #28a745;
+  color: #28a745;
+}
+
+.timeframe-btn.active {
+  background-color: #28a745;
+  color: white;
+  border-color: #28a745;
+}
+
+.stats-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
+  gap: 20px;
+  margin-bottom: 30px;
+}
+
+.stat-card {
+  background: white;
+  border-radius: 8px;
+  padding: 20px;
+  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
+  transition: transform 0.3s ease, box-shadow 0.3s ease;
+}
+
+.stat-card:hover {
+  transform: translateY(-5px);
+  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
+}
+
+.stat-card h3 {
+  font-size: 14px;
+  color: #666;
+  margin-bottom: 10px;
+  text-transform: uppercase;
+  letter-spacing: 0.5px;
+}
+
+.stat-card .stat-value {
+  font-size: 36px;
+  font-weight: bold;
+  color: #28a745;
+  margin-bottom: 5px;
+}
+
+.stat-card .stat-label {
+  font-size: 12px;
+  color: #999;
+}
+
+.charts-section {
+  background: white;
+  border-radius: 8px;
+  padding: 20px;
+  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
+  margin-bottom: 30px;
+}
+
+.charts-section h3 {
+  color: #333;
+  margin-bottom: 20px;
+  font-size: 20px;
+}
+
+.loading-spinner {
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  padding: 60px;
+  font-size: 18px;
+  color: #666;
+}
+
+.error-message {
+  background-color: #f8d7da;
+  color: #721c24;
+  padding: 15px;
+  border-radius: 8px;
+  margin-bottom: 20px;
+  border: 1px solid #f5c6cb;
+}
+
+.no-data {
+  text-align: center;
+  padding: 40px;
+  color: #999;
+  font-size: 16px;
+}
+
+@media (max-width: 768px) {
+  .analytics-container {
+    padding: 10px;
+  }
+
+  .stats-grid {
+    grid-template-columns: 1fr;
+  }
+
+  .stat-card .stat-value {
+    font-size: 28px;
+  }
+
+  .analytics-tabs {
+    overflow-x: auto;
+    -webkit-overflow-scrolling: touch;
+  }
+
+  .analytics-tab {
+    padding: 10px 16px;
+    font-size: 14px;
+  }
+}

frontend/src/components/Analytics.js

@@ -0,0 +1,325 @@
+import React, { useState, useEffect } from "react";
+import axios from "axios";
+import ActivityChart from "./ActivityChart";
+import ContributorsList from "./ContributorsList";
+import StreetStatsChart from "./StreetStatsChart";
+import PersonalStats from "./PersonalStats";
+import "./Analytics.css";
+
+const Analytics = () => {
+  const [overview, setOverview] = useState(null);
+  const [activity, setActivity] = useState(null);
+  const [contributors, setContributors] = useState([]);
+  const [streetStats, setStreetStats] = useState(null);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState(null);
+  const [timeframe, setTimeframe] = useState("30d");
+  const [groupBy, setGroupBy] = useState("day");
+  const [activeTab, setActiveTab] = useState("overview");
+
+  const fetchAnalyticsData = async () => {
+    setLoading(true);
+    setError(null);
+
+    try {
+      const token = localStorage.getItem("token");
+      const config = {
+        headers: {
+          "x-auth-token": token,
+        },
+      };
+
+      const [overviewRes, activityRes, contributorsRes, streetStatsRes] = await Promise.all([
+        axios.get(`/api/analytics/overview?timeframe=${timeframe}`, config),
+        axios.get(`/api/analytics/activity?timeframe=${timeframe}&groupBy=${groupBy}`, config),
+        axios.get(`/api/analytics/top-contributors?limit=10&timeframe=${timeframe}`, config),
+        axios.get(`/api/analytics/street-stats?timeframe=${timeframe}`, config),
+      ]);
+
+      setOverview(overviewRes.data.overview);
+      setActivity(activityRes.data);
+      setContributors(contributorsRes.data.contributors);
+      setStreetStats(streetStatsRes.data);
+    } catch (err) {
+      console.error("Error fetching analytics:", err);
+      setError(err.response?.data?.msg || "Failed to load analytics data");
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  useEffect(() => {
+    fetchAnalyticsData();
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [timeframe, groupBy]);
+
+  const handleTimeframeChange = (e) => {
+    setTimeframe(e.target.value);
+  };
+
+  const handleGroupByChange = (e) => {
+    setGroupBy(e.target.value);
+  };
+
+  if (loading) {
+    return (
+      <div className="analytics-container">
+        <div className="text-center mt-5">
+          <div className="spinner-border text-primary" role="status">
+            <span className="visually-hidden">Loading...</span>
+          </div>
+          <p className="mt-3">Loading analytics...</p>
+        </div>
+      </div>
+    );
+  }
+
+  if (error) {
+    return (
+      <div className="analytics-container">
+        <div className="alert alert-danger mt-3" role="alert">
+          {error}
+        </div>
+      </div>
+    );
+  }
+
+  return (
+    <div className="analytics-container">
+      <div className="analytics-header">
+        <h1>Analytics Dashboard</h1>
+        <div className="analytics-controls">
+          <div className="form-group">
+            <label htmlFor="timeframe">Timeframe:</label>
+            <select
+              id="timeframe"
+              className="form-select"
+              value={timeframe}
+              onChange={handleTimeframeChange}
+            >
+              <option value="7d">Last 7 Days</option>
+              <option value="30d">Last 30 Days</option>
+              <option value="90d">Last 90 Days</option>
+              <option value="all">All Time</option>
+            </select>
+          </div>
+          {activeTab === "activity" && (
+            <div className="form-group">
+              <label htmlFor="groupBy">Group By:</label>
+              <select
+                id="groupBy"
+                className="form-select"
+                value={groupBy}
+                onChange={handleGroupByChange}
+              >
+                <option value="day">Day</option>
+                <option value="week">Week</option>
+                <option value="month">Month</option>
+              </select>
+            </div>
+          )}
+        </div>
+      </div>
+
+      <ul className="nav nav-tabs mb-4">
+        <li className="nav-item">
+          <button
+            className={`nav-link ${activeTab === "overview" ? "active" : ""}`}
+            onClick={() => setActiveTab("overview")}
+          >
+            Overview
+          </button>
+        </li>
+        <li className="nav-item">
+          <button
+            className={`nav-link ${activeTab === "activity" ? "active" : ""}`}
+            onClick={() => setActiveTab("activity")}
+          >
+            Activity
+          </button>
+        </li>
+        <li className="nav-item">
+          <button
+            className={`nav-link ${activeTab === "personal" ? "active" : ""}`}
+            onClick={() => setActiveTab("personal")}
+          >
+            My Stats
+          </button>
+        </li>
+      </ul>
+
+      {activeTab === "overview" && overview && (
+        <div className="overview-tab">
+          <div className="row">
+            <div className="col-md-3 mb-4">
+              <div className="stat-card">
+                <div className="stat-icon bg-primary">
+                  <i className="fas fa-users"></i>
+                </div>
+                <div className="stat-content">
+                  <h3>{overview.totalUsers}</h3>
+                  <p>Total Users</p>
+                </div>
+              </div>
+            </div>
+
+            <div className="col-md-3 mb-4">
+              <div className="stat-card">
+                <div className="stat-icon bg-success">
+                  <i className="fas fa-road"></i>
+                </div>
+                <div className="stat-content">
+                  <h3>{overview.adoptedStreets}</h3>
+                  <p>Streets Adopted</p>
+                  <small className="text-muted">
+                    {overview.availableStreets} available
+                  </small>
+                </div>
+              </div>
+            </div>
+
+            <div className="col-md-3 mb-4">
+              <div className="stat-card">
+                <div className="stat-icon bg-info">
+                  <i className="fas fa-tasks"></i>
+                </div>
+                <div className="stat-content">
+                  <h3>{overview.completedTasks}</h3>
+                  <p>Tasks Completed</p>
+                  <small className="text-muted">
+                    {overview.pendingTasks} pending
+                  </small>
+                </div>
+              </div>
+            </div>
+
+            <div className="col-md-3 mb-4">
+              <div className="stat-card">
+                <div className="stat-icon bg-warning">
+                  <i className="fas fa-calendar"></i>
+                </div>
+                <div className="stat-content">
+                  <h3>{overview.activeEvents}</h3>
+                  <p>Active Events</p>
+                  <small className="text-muted">
+                    {overview.completedEvents} completed
+                  </small>
+                </div>
+              </div>
+            </div>
+          </div>
+
+          <div className="row mt-4">
+            <div className="col-md-3 mb-4">
+              <div className="stat-card">
+                <div className="stat-icon bg-secondary">
+                  <i className="fas fa-comments"></i>
+                </div>
+                <div className="stat-content">
+                  <h3>{overview.totalPosts}</h3>
+                  <p>Total Posts</p>
+                </div>
+              </div>
+            </div>
+
+            <div className="col-md-3 mb-4">
+              <div className="stat-card">
+                <div className="stat-icon bg-danger">
+                  <i className="fas fa-star"></i>
+                </div>
+                <div className="stat-content">
+                  <h3>{overview.totalPoints.toLocaleString()}</h3>
+                  <p>Total Points</p>
+                </div>
+              </div>
+            </div>
+
+            <div className="col-md-3 mb-4">
+              <div className="stat-card">
+                <div className="stat-icon bg-dark">
+                  <i className="fas fa-chart-line"></i>
+                </div>
+                <div className="stat-content">
+                  <h3>{overview.averagePointsPerUser}</h3>
+                  <p>Avg Points/User</p>
+                </div>
+              </div>
+            </div>
+          </div>
+
+          <div className="row mt-4">
+            <div className="col-lg-8 mb-4">
+              <div className="card">
+                <div className="card-header">
+                  <h5>Street Statistics</h5>
+                </div>
+                <div className="card-body">
+                  {streetStats && <StreetStatsChart data={streetStats} />}
+                </div>
+              </div>
+            </div>
+
+            <div className="col-lg-4 mb-4">
+              <div className="card">
+                <div className="card-header">
+                  <h5>Top Contributors</h5>
+                </div>
+                <div className="card-body">
+                  <ContributorsList contributors={contributors} />
+                </div>
+              </div>
+            </div>
+          </div>
+        </div>
+      )}
+
+      {activeTab === "activity" && activity && (
+        <div className="activity-tab">
+          <div className="card">
+            <div className="card-header">
+              <h5>Activity Over Time</h5>
+            </div>
+            <div className="card-body">
+              <ActivityChart data={activity.activity} groupBy={groupBy} />
+            </div>
+          </div>
+
+          <div className="row mt-4">
+            <div className="col-md-3">
+              <div className="stat-card small">
+                <h4>{activity.summary.totalTasks}</h4>
+                <p>Total Tasks</p>
+              </div>
+            </div>
+            <div className="col-md-3">
+              <div className="stat-card small">
+                <h4>{activity.summary.totalPosts}</h4>
+                <p>Total Posts</p>
+              </div>
+            </div>
+            <div className="col-md-3">
+              <div className="stat-card small">
+                <h4>{activity.summary.totalEvents}</h4>
+                <p>Total Events</p>
+              </div>
+            </div>
+            <div className="col-md-3">
+              <div className="stat-card small">
+                <h4>{activity.summary.totalStreetsAdopted}</h4>
+                <p>Streets Adopted</p>
+              </div>
+            </div>
+          </div>
+        </div>
+      )}
+
+      {activeTab === "personal" && (
+        <div className="personal-tab">
+          <PersonalStats timeframe={timeframe} />
+        </div>
+      )}
+    </div>
+  );
+};
+
+export default Analytics;

frontend/src/components/BadgeCollection.js

@@ -0,0 +1,188 @@
+import React, { useState, useEffect, useContext } from "react";
+import axios from "axios";
+import { toast } from "react-toastify";
+import BadgeDisplay from "./BadgeDisplay";
+import { AuthContext } from "../context/AuthContext";
+
+/**
+ * BadgeCollection component - displays all available badges with filter/sort options
+ */
+const BadgeCollection = () => {
+  const { auth } = useContext(AuthContext);
+  const [badges, setBadges] = useState([]);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState(null);
+  const [filter, setFilter] = useState("all"); // all, earned, locked
+  const [sortBy, setSortBy] = useState("rarity"); // rarity, name
+
+  useEffect(() => {
+    const fetchBadges = async () => {
+      try {
+        setLoading(true);
+        setError(null);
+
+        // Fetch all badges and user's progress
+        const [allBadgesRes, progressRes] = await Promise.all([
+          axios.get("/api/badges"),
+          axios.get("/api/badges/progress"),
+        ]);
+
+        // Merge badge data with progress data
+        const badgesWithProgress = allBadgesRes.data.map((badge) => {
+          const progress = progressRes.data.find((p) => p._id === badge._id);
+          return {
+            ...badge,
+            isEarned: progress?.isEarned || false,
+            progress: progress?.progress || 0,
+            threshold: progress?.threshold || badge.criteria?.threshold || 0,
+          };
+        });
+
+        setBadges(badgesWithProgress);
+      } catch (err) {
+        console.error("Error fetching badges:", err);
+        const errorMessage =
+          err.response?.data?.msg ||
+          err.response?.data?.message ||
+          "Failed to load badges";
+        setError(errorMessage);
+        toast.error(errorMessage);
+      } finally {
+        setLoading(false);
+      }
+    };
+
+    if (auth.isAuthenticated) {
+      fetchBadges();
+    }
+  }, [auth.isAuthenticated]);
+
+  // Filter badges based on selected filter
+  const getFilteredBadges = () => {
+    let filtered = [...badges];
+
+    if (filter === "earned") {
+      filtered = filtered.filter((badge) => badge.isEarned);
+    } else if (filter === "locked") {
+      filtered = filtered.filter((badge) => !badge.isEarned);
+    }
+
+    return filtered;
+  };
+
+  // Sort badges based on selected sort option
+  const getSortedBadges = () => {
+    const filtered = getFilteredBadges();
+
+    if (sortBy === "rarity") {
+      const rarityOrder = { legendary: 0, epic: 1, rare: 2, common: 3 };
+      return filtered.sort(
+        (a, b) => rarityOrder[a.rarity] - rarityOrder[b.rarity]
+      );
+    } else if (sortBy === "name") {
+      return filtered.sort((a, b) => a.name.localeCompare(b.name));
+    }
+
+    return filtered;
+  };
+
+  const sortedBadges = getSortedBadges();
+  const earnedCount = badges.filter((b) => b.isEarned).length;
+  const totalCount = badges.length;
+
+  if (loading) {
+    return (
+      <div className="text-center mt-5">
+        <div className="spinner-border" role="status">
+          <span className="sr-only">Loading...</span>
+        </div>
+        <p>Loading badges...</p>
+      </div>
+    );
+  }
+
+  if (error) {
+    return (
+      <div className="alert alert-danger m-3" role="alert">
+        <h4 className="alert-heading">Error Loading Badges</h4>
+        <p>{error}</p>
+      </div>
+    );
+  }
+
+  if (!auth.isAuthenticated) {
+    return (
+      <div className="alert alert-warning m-3" role="alert">
+        <h4 className="alert-heading">Not Logged In</h4>
+        <p>Please log in to view badges.</p>
+      </div>
+    );
+  }
+
+  return (
+    <div className="badge-collection">
+      <div className="d-flex justify-content-between align-items-center mb-4">
+        <h2>Badge Collection</h2>
+        <div>
+          <span className="badge badge-primary badge-lg">
+            {earnedCount} / {totalCount} Earned
+          </span>
+        </div>
+      </div>
+
+      {/* Filter and Sort Controls */}
+      <div className="card mb-4">
+        <div className="card-body">
+          <div className="row">
+            <div className="col-md-6">
+              <label htmlFor="filterSelect" className="form-label">
+                <strong>Filter:</strong>
+              </label>
+              <select
+                id="filterSelect"
+                className="form-control"
+                value={filter}
+                onChange={(e) => setFilter(e.target.value)}
+              >
+                <option value="all">All Badges</option>
+                <option value="earned">Earned Only</option>
+                <option value="locked">Locked Only</option>
+              </select>
+            </div>
+            <div className="col-md-6">
+              <label htmlFor="sortSelect" className="form-label">
+                <strong>Sort By:</strong>
+              </label>
+              <select
+                id="sortSelect"
+                className="form-control"
+                value={sortBy}
+                onChange={(e) => setSortBy(e.target.value)}
+              >
+                <option value="rarity">Rarity</option>
+                <option value="name">Name</option>
+              </select>
+            </div>
+          </div>
+        </div>
+      </div>
+
+      {/* Badge Grid */}
+      {sortedBadges.length === 0 ? (
+        <div className="alert alert-info">
+          <p className="mb-0">No badges found with the selected filter.</p>
+        </div>
+      ) : (
+        <div className="row">
+          {sortedBadges.map((badge) => (
+            <div key={badge._id} className="col-md-4 col-lg-3 mb-4">
+              <BadgeDisplay badge={badge} isEarned={badge.isEarned} />
+            </div>
+          ))}
+        </div>
+      )}
+    </div>
+  );
+};
+
+export default BadgeCollection;

frontend/src/components/BadgeDisplay.js

@@ -0,0 +1,88 @@
+import React from "react";
+import PropTypes from "prop-types";
+
+/**
+ * BadgeDisplay component - displays a single badge with icon, name, and description
+ * @param {Object} badge - Badge object
+ * @param {boolean} isEarned - Whether the badge is earned
+ * @param {boolean} showTooltip - Whether to show tooltip on hover
+ */
+const BadgeDisplay = ({ badge, isEarned = false, showTooltip = true }) => {
+  const getRarityColor = (rarity) => {
+    switch (rarity) {
+      case "common":
+        return "#6c757d";
+      case "rare":
+        return "#0d6efd";
+      case "epic":
+        return "#6f42c1";
+      case "legendary":
+        return "#ffc107";
+      default:
+        return "#6c757d";
+    }
+  };
+
+  const badgeStyle = {
+    filter: isEarned ? "none" : "grayscale(100%) opacity(0.5)",
+    borderColor: getRarityColor(badge.rarity),
+    borderWidth: "3px",
+    transition: "all 0.3s ease",
+  };
+
+  const iconStyle = {
+    fontSize: "3rem",
+    marginBottom: "0.5rem",
+  };
+
+  return (
+    <div
+      className="card badge-card text-center p-3"
+      style={badgeStyle}
+      title={
+        showTooltip
+          ? `${badge.name} - ${badge.description}\n${
+              badge.criteria?.type
+                ? `Unlock: ${badge.criteria.threshold} ${badge.criteria.type.replace(
+                    "_",
+                    " "
+                  )}`
+                : ""
+            }`
+          : ""
+      }
+    >
+      <div style={iconStyle}>{badge.icon || "🏆"}</div>
+      <h6 className="mb-1">{badge.name}</h6>
+      <p className="small text-muted mb-1">{badge.description}</p>
+      <span
+        className={`badge badge-${badge.rarity === "legendary" ? "warning" : badge.rarity === "epic" ? "purple" : badge.rarity === "rare" ? "primary" : "secondary"}`}
+      >
+        {badge.rarity}
+      </span>
+      {isEarned && (
+        <div className="mt-2">
+          <span className="badge badge-success">✓ Earned</span>
+        </div>
+      )}
+    </div>
+  );
+};
+
+BadgeDisplay.propTypes = {
+  badge: PropTypes.shape({
+    _id: PropTypes.string.isRequired,
+    name: PropTypes.string.isRequired,
+    description: PropTypes.string.isRequired,
+    icon: PropTypes.string,
+    rarity: PropTypes.oneOf(["common", "rare", "epic", "legendary"]).isRequired,
+    criteria: PropTypes.shape({
+      type: PropTypes.string,
+      threshold: PropTypes.number,
+    }),
+  }).isRequired,
+  isEarned: PropTypes.bool,
+  showTooltip: PropTypes.bool,
+};
+
+export default BadgeDisplay;

frontend/src/components/BadgeProgress.js

@@ -0,0 +1,79 @@
+import React from "react";
+import PropTypes from "prop-types";
+
+/**
+ * BadgeProgress component - displays progress bars for badges in progress
+ * @param {Array} badges - Array of badge objects with progress information
+ */
+const BadgeProgress = ({ badges }) => {
+  // Filter to show only badges that are in progress (not earned and have some progress)
+  const inProgressBadges = badges.filter(
+    (badge) => !badge.isEarned && badge.progress > 0 && badge.threshold > 0
+  );
+
+  if (inProgressBadges.length === 0) {
+    return (
+      <div className="alert alert-info">
+        <p className="mb-0">
+          Complete tasks and participate in events to earn badges!
+        </p>
+      </div>
+    );
+  }
+
+  return (
+    <div className="badge-progress-container">
+      <h5 className="mb-3">Badges In Progress</h5>
+      {inProgressBadges.map((badge) => {
+        const percentage = Math.round((badge.progress / badge.threshold) * 100);
+        return (
+          <div key={badge._id} className="mb-3">
+            <div className="d-flex justify-content-between align-items-center mb-1">
+              <div className="d-flex align-items-center">
+                <span style={{ fontSize: "1.5rem", marginRight: "0.5rem" }}>
+                  {badge.icon || "🏆"}
+                </span>
+                <div>
+                  <strong>{badge.name}</strong>
+                  <br />
+                  <small className="text-muted">{badge.description}</small>
+                </div>
+              </div>
+              <span className="badge badge-info">
+                {badge.progress} / {badge.threshold}
+              </span>
+            </div>
+            <div className="progress" style={{ height: "20px" }}>
+              <div
+                className={`progress-bar ${percentage >= 75 ? "bg-success" : percentage >= 50 ? "bg-info" : "bg-warning"}`}
+                role="progressbar"
+                style={{ width: `${percentage}%` }}
+                aria-valuenow={badge.progress}
+                aria-valuemin="0"
+                aria-valuemax={badge.threshold}
+              >
+                {percentage}%
+              </div>
+            </div>
+          </div>
+        );
+      })}
+    </div>
+  );
+};
+
+BadgeProgress.propTypes = {
+  badges: PropTypes.arrayOf(
+    PropTypes.shape({
+      _id: PropTypes.string.isRequired,
+      name: PropTypes.string.isRequired,
+      description: PropTypes.string.isRequired,
+      icon: PropTypes.string,
+      progress: PropTypes.number.isRequired,
+      threshold: PropTypes.number.isRequired,
+      isEarned: PropTypes.bool.isRequired,
+    })
+  ).isRequired,
+};
+
+export default BadgeProgress;

frontend/src/components/ContributorsList.css

@@ -0,0 +1,159 @@
+.contributors-list {
+  background: white;
+  border-radius: 8px;
+  padding: 20px;
+  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
+  margin-bottom: 30px;
+}
+
+.contributors-list h3 {
+  color: #333;
+  margin-bottom: 20px;
+  font-size: 20px;
+}
+
+.metric-selector {
+  display: flex;
+  gap: 10px;
+  margin-bottom: 20px;
+  flex-wrap: wrap;
+}
+
+.metric-btn {
+  padding: 8px 16px;
+  border: 2px solid #e0e0e0;
+  background: white;
+  border-radius: 20px;
+  cursor: pointer;
+  font-size: 14px;
+  color: #666;
+  transition: all 0.3s ease;
+  text-transform: capitalize;
+}
+
+.metric-btn:hover {
+  border-color: #28a745;
+  color: #28a745;
+}
+
+.metric-btn.active {
+  background-color: #28a745;
+  color: white;
+  border-color: #28a745;
+}
+
+.contributors-table {
+  width: 100%;
+  border-collapse: collapse;
+}
+
+.contributors-table thead {
+  background-color: #f8f9fa;
+}
+
+.contributors-table th {
+  padding: 12px;
+  text-align: left;
+  font-weight: 600;
+  color: #666;
+  font-size: 14px;
+  text-transform: uppercase;
+  letter-spacing: 0.5px;
+  border-bottom: 2px solid #e0e0e0;
+}
+
+.contributors-table td {
+  padding: 15px 12px;
+  border-bottom: 1px solid #f0f0f0;
+}
+
+.contributors-table tbody tr {
+  transition: background-color 0.3s ease;
+}
+
+.contributors-table tbody tr:hover {
+  background-color: #f8f9fa;
+}
+
+.rank-cell {
+  font-weight: bold;
+  color: #999;
+  width: 60px;
+}
+
+.rank-cell.rank-1 {
+  color: #ffd700;
+  font-size: 18px;
+}
+
+.rank-cell.rank-2 {
+  color: #c0c0c0;
+  font-size: 16px;
+}
+
+.rank-cell.rank-3 {
+  color: #cd7f32;
+  font-size: 16px;
+}
+
+.user-info {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+}
+
+.user-avatar {
+  width: 40px;
+  height: 40px;
+  border-radius: 50%;
+  background-color: #28a745;
+  color: white;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-weight: bold;
+  font-size: 16px;
+}
+
+.user-name {
+  font-weight: 500;
+  color: #333;
+}
+
+.value-cell {
+  font-weight: 600;
+  color: #28a745;
+  font-size: 16px;
+}
+
+.no-contributors {
+  text-align: center;
+  padding: 30px;
+  color: #999;
+  font-size: 14px;
+}
+
+@media (max-width: 768px) {
+  .contributors-list {
+    padding: 15px;
+  }
+
+  .contributors-table {
+    font-size: 14px;
+  }
+
+  .contributors-table th,
+  .contributors-table td {
+    padding: 10px 8px;
+  }
+
+  .user-avatar {
+    width: 32px;
+    height: 32px;
+    font-size: 14px;
+  }
+
+  .rank-cell {
+    width: 40px;
+  }
+}

frontend/src/components/ContributorsList.js

@@ -0,0 +1,50 @@
+import React from "react";
+import "./ContributorsList.css";
+
+const ContributorsList = ({ contributors }) => {
+  if (!contributors || contributors.length === 0) {
+    return <p className="text-muted">No contributors data available.</p>;
+  }
+
+  return (
+    <div className="contributors-list">
+      {contributors.map((contributor, index) => (
+        <div key={contributor.userId} className="contributor-item">
+          <div className="contributor-rank">#{index + 1}</div>
+          <div className="contributor-avatar">
+            {contributor.profilePicture ? (
+              <img
+                src={contributor.profilePicture}
+                alt={contributor.name}
+                className="avatar-img"
+              />
+            ) : (
+              <div className="avatar-placeholder">
+                {contributor.name.charAt(0).toUpperCase()}
+              </div>
+            )}
+          </div>
+          <div className="contributor-info">
+            <div className="contributor-name">
+              {contributor.name}
+              {contributor.isPremium && (
+                <span className="badge bg-warning text-dark ms-2">Premium</span>
+              )}
+            </div>
+            <div className="contributor-stats">
+              <small className="text-muted">
+                {contributor.stats.points} pts | {contributor.stats.tasksCompleted} tasks |{" "}
+                {contributor.stats.streetsAdopted} streets
+              </small>
+            </div>
+          </div>
+          <div className="contributor-score">
+            <strong>{contributor.score}</strong>
+          </div>
+        </div>
+      ))}
+    </div>
+  );
+};
+
+export default ContributorsList;

frontend/src/components/Leaderboard.js

@@ -0,0 +1,263 @@
+import React, { useState, useEffect, useContext, useCallback } from "react";
+import axios from "axios";
+import { toast } from "react-toastify";
+
+import { AuthContext } from "../context/AuthContext";
+import LeaderboardCard from "./LeaderboardCard";
+
+/**
+ * Leaderboard component displays top users by points with different timeframes
+ */
+const Leaderboard = () => {
+  const { auth } = useContext(AuthContext);
+  const [activeTab, setActiveTab] = useState("global");
+  const [leaderboard, setLeaderboard] = useState([]);
+  const [stats, setStats] = useState(null);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState(null);
+  const [page, setPage] = useState(1);
+  const [hasMore, setHasMore] = useState(true);
+  const limit = 50;
+
+  // Load leaderboard data based on active tab
+  const loadLeaderboard = useCallback(async () => {
+    try {
+      setLoading(true);
+      setError(null);
+
+      const offset = (page - 1) * limit;
+      let endpoint = "";
+
+      switch (activeTab) {
+        case "global":
+          endpoint = `/api/leaderboard/global?limit=${limit}&offset=${offset}`;
+          break;
+        case "weekly":
+          endpoint = `/api/leaderboard/weekly?limit=${limit}&offset=${offset}`;
+          break;
+        case "monthly":
+          endpoint = `/api/leaderboard/monthly?limit=${limit}&offset=${offset}`;
+          break;
+        case "friends":
+          endpoint = `/api/leaderboard/friends?limit=${limit}&offset=${offset}`;
+          break;
+        default:
+          endpoint = `/api/leaderboard/global?limit=${limit}&offset=${offset}`;
+      }
+
+      const config = {};
+      // Friends endpoint requires authentication
+      if (activeTab === "friends") {
+        const token = localStorage.getItem("token");
+        config.headers = { "x-auth-token": token };
+      }
+
+      const res = await axios.get(endpoint, config);
+      setLeaderboard(res.data);
+      setHasMore(res.data.length === limit);
+    } catch (err) {
+      console.error("Error loading leaderboard:", err);
+      const errorMessage =
+        err.response?.data?.msg ||
+        err.response?.data?.message ||
+        "Failed to load leaderboard. Please try again later.";
+      setError(errorMessage);
+      toast.error(errorMessage);
+    } finally {
+      setLoading(false);
+    }
+  }, [activeTab, page]);
+
+  // Load leaderboard stats
+  const loadStats = useCallback(async () => {
+    try {
+      const res = await axios.get("/api/leaderboard/stats");
+      setStats(res.data);
+    } catch (err) {
+      console.error("Error loading leaderboard stats:", err);
+    }
+  }, []);
+
+  useEffect(() => {
+    loadLeaderboard();
+  }, [loadLeaderboard]);
+
+  useEffect(() => {
+    loadStats();
+  }, [loadStats]);
+
+  // Handle tab change
+  const handleTabChange = (tab) => {
+    if (tab === "friends" && !auth.isAuthenticated) {
+      toast.warning("Please login to view friends leaderboard");
+      return;
+    }
+    setActiveTab(tab);
+    setPage(1);
+    setLeaderboard([]);
+  };
+
+  // Handle pagination
+  const handlePreviousPage = () => {
+    if (page > 1) {
+      setPage(page - 1);
+    }
+  };
+
+  const handleNextPage = () => {
+    if (hasMore) {
+      setPage(page + 1);
+    }
+  };
+
+  if (loading && leaderboard.length === 0) {
+    return (
+      <div className="text-center mt-5">
+        <div className="spinner-border" role="status">
+          <span className="sr-only">Loading...</span>
+        </div>
+        <p>Loading leaderboard...</p>
+      </div>
+    );
+  }
+
+  if (error) {
+    return (
+      <div className="alert alert-danger m-3" role="alert">
+        <h4 className="alert-heading">Error Loading Leaderboard</h4>
+        <p>{error}</p>
+        <hr />
+        <button className="btn btn-primary" onClick={loadLeaderboard}>
+          Retry
+        </button>
+      </div>
+    );
+  }
+
+  return (
+    <div>
+      <h1>Leaderboard</h1>
+
+      {/* Leaderboard Stats */}
+      {stats && (
+        <div className="alert alert-info mb-4">
+          <div className="row">
+            <div className="col-md-3 col-6 mb-2">
+              <strong>Total Users:</strong> {stats.totalUsers}
+            </div>
+            <div className="col-md-3 col-6 mb-2">
+              <strong>Total Points:</strong> {stats.totalPoints.toLocaleString()}
+            </div>
+            <div className="col-md-3 col-6 mb-2">
+              <strong>Avg Points:</strong> {Math.round(stats.averagePoints)}
+            </div>
+            <div className="col-md-3 col-6 mb-2">
+              <strong>Top Score:</strong> {stats.maxPoints.toLocaleString()}
+            </div>
+          </div>
+        </div>
+      )}
+
+      {/* Tab Navigation */}
+      <ul className="nav nav-tabs mb-4">
+        <li className="nav-item">
+          <button
+            className={`nav-link ${activeTab === "global" ? "active" : ""}`}
+            onClick={() => handleTabChange("global")}
+          >
+            All Time
+          </button>
+        </li>
+        <li className="nav-item">
+          <button
+            className={`nav-link ${activeTab === "weekly" ? "active" : ""}`}
+            onClick={() => handleTabChange("weekly")}
+          >
+            This Week
+          </button>
+        </li>
+        <li className="nav-item">
+          <button
+            className={`nav-link ${activeTab === "monthly" ? "active" : ""}`}
+            onClick={() => handleTabChange("monthly")}
+          >
+            This Month
+          </button>
+        </li>
+        <li className="nav-item">
+          <button
+            className={`nav-link ${activeTab === "friends" ? "active" : ""}`}
+            onClick={() => handleTabChange("friends")}
+            disabled={!auth.isAuthenticated}
+          >
+            Friends {!auth.isAuthenticated && "(Login Required)"}
+          </button>
+        </li>
+      </ul>
+
+      {/* Current User Info */}
+      {auth.user && activeTab !== "friends" && (
+        <div className="alert alert-success mb-4">
+          <strong>Your Points:</strong>{" "}
+          <span className="badge badge-primary">{auth.user.points || 0}</span>
+        </div>
+      )}
+
+      {/* Leaderboard List */}
+      {leaderboard.length === 0 ? (
+        <div className="alert alert-info">
+          {activeTab === "friends"
+            ? "No friends to display. Add friends to see them on the leaderboard!"
+            : "No users to display yet. Be the first to earn points!"}
+        </div>
+      ) : (
+        <>
+          <div className="row">
+            {leaderboard.map((entry, index) => (
+              <LeaderboardCard
+                key={entry.userId}
+                entry={entry}
+                rank={(page - 1) * limit + index + 1}
+                isCurrentUser={auth.user && entry.userId === auth.user._id}
+              />
+            ))}
+          </div>
+
+          {/* Pagination */}
+          <div className="d-flex justify-content-between align-items-center mt-4">
+            <button
+              className="btn btn-secondary"
+              onClick={handlePreviousPage}
+              disabled={page === 1 || loading}
+            >
+              Previous
+            </button>
+            <span>
+              Page {page} {hasMore && "- More available"}
+            </span>
+            <button
+              className="btn btn-secondary"
+              onClick={handleNextPage}
+              disabled={!hasMore || loading}
+            >
+              {loading ? (
+                <>
+                  <span
+                    className="spinner-border spinner-border-sm mr-2"
+                    role="status"
+                    aria-hidden="true"
+                  ></span>
+                  Loading...
+                </>
+              ) : (
+                "Next"
+              )}
+            </button>
+          </div>
+        </>
+      )}
+    </div>
+  );
+};
+
+export default Leaderboard;

frontend/src/components/LeaderboardCard.js

@@ -0,0 +1,103 @@
+import React from "react";
+
+/**
+ * LeaderboardCard component displays individual user entry on the leaderboard
+ * @param {Object} entry - Leaderboard entry data
+ * @param {Number} rank - User's rank/position
+ * @param {Boolean} isCurrentUser - Whether this is the logged-in user
+ */
+const LeaderboardCard = ({ entry, rank, isCurrentUser }) => {
+  // Determine rank badge color
+  const getRankBadgeClass = () => {
+    if (rank === 1) return "badge-warning"; // Gold
+    if (rank === 2) return "badge-secondary"; // Silver
+    if (rank === 3) return "badge-danger"; // Bronze
+    return "badge-primary"; // Default
+  };
+
+  // Get rank emoji
+  const getRankEmoji = () => {
+    if (rank === 1) return "🥇";
+    if (rank === 2) return "🥈";
+    if (rank === 3) return "🥉";
+    return "";
+  };
+
+  return (
+    <div className="col-12 mb-3">
+      <div
+        className={`card h-100 ${isCurrentUser ? "border-success" : ""}`}
+        style={isCurrentUser ? { borderWidth: "3px" } : {}}
+      >
+        <div className="card-body">
+          <div className="row align-items-center">
+            {/* Rank */}
+            <div className="col-2 col-md-1 text-center">
+              <h3 className="mb-0">
+                <span className={`badge ${getRankBadgeClass()}`}>
+                  {getRankEmoji()} #{rank}
+                </span>
+              </h3>
+            </div>
+
+            {/* User Info */}
+            <div className="col-10 col-md-5">
+              <h5 className="mb-1">
+                {entry.username || "Unknown User"}
+                {isCurrentUser && (
+                  <span className="badge badge-success ml-2">You</span>
+                )}
+              </h5>
+              <div className="text-muted small">
+                {entry.email && <div>{entry.email}</div>}
+              </div>
+            </div>
+
+            {/* Points */}
+            <div className="col-6 col-md-2 text-center mt-2 mt-md-0">
+              <div className="text-muted small">Points</div>
+              <h4 className="mb-0 text-primary">
+                {entry.points.toLocaleString()}
+              </h4>
+            </div>
+
+            {/* Stats */}
+            <div className="col-6 col-md-2 text-center mt-2 mt-md-0">
+              <div className="text-muted small">Streets</div>
+              <div className="font-weight-bold">{entry.streetsAdopted || 0}</div>
+              <div className="text-muted small mt-1">Tasks</div>
+              <div className="font-weight-bold">{entry.tasksCompleted || 0}</div>
+            </div>
+
+            {/* Badges */}
+            <div className="col-12 col-md-2 text-center mt-2 mt-md-0">
+              <div className="text-muted small">Badges</div>
+              <div className="d-flex justify-content-center flex-wrap">
+                {entry.badges && entry.badges.length > 0 ? (
+                  entry.badges.slice(0, 5).map((badge, index) => (
+                    <span
+                      key={index}
+                      className="badge badge-info mr-1 mb-1"
+                      title={badge.name}
+                    >
+                      {badge.icon || "🏆"}
+                    </span>
+                  ))
+                ) : (
+                  <span className="text-muted small">None</span>
+                )}
+                {entry.badges && entry.badges.length > 5 && (
+                  <span className="badge badge-secondary ml-1">
+                    +{entry.badges.length - 5}
+                  </span>
+                )}
+              </div>
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+};
+
+export default LeaderboardCard;

frontend/src/components/Navbar.js

@@ -22,6 +22,12 @@ const Navbar = () => {
       <li className="nav-item">
         <Link className="nav-link" to="/rewards">Rewards</Link>
       </li>
+      <li className="nav-item">
+        <Link className="nav-link" to="/leaderboard">Leaderboard</Link>
+      </li>
+      <li className="nav-item">
+        <Link className="nav-link" to="/analytics">Analytics</Link>
+      </li>
       <li className="nav-item">
         <Link className="nav-link" to="/profile">Profile</Link>
       </li>

frontend/src/components/PersonalStats.css

@@ -0,0 +1,190 @@
+.personal-stats {
+  padding: 20px 0;
+}
+
+.personal-stats-header {
+  text-align: center;
+  margin-bottom: 30px;
+}
+
+.personal-stats-header h3 {
+  color: #333;
+  font-size: 24px;
+  margin-bottom: 10px;
+}
+
+.personal-stats-header p {
+  color: #666;
+  font-size: 14px;
+}
+
+.personal-stats-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
+  gap: 20px;
+  margin-bottom: 30px;
+}
+
+.personal-stat-card {
+  background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
+  border-radius: 12px;
+  padding: 24px;
+  color: white;
+  box-shadow: 0 4px 6px rgba(40, 167, 69, 0.2);
+  transition: transform 0.3s ease, box-shadow 0.3s ease;
+}
+
+.personal-stat-card:hover {
+  transform: translateY(-5px);
+  box-shadow: 0 6px 12px rgba(40, 167, 69, 0.3);
+}
+
+.personal-stat-card h4 {
+  font-size: 14px;
+  opacity: 0.9;
+  margin-bottom: 10px;
+  text-transform: uppercase;
+  letter-spacing: 1px;
+  font-weight: 500;
+}
+
+.personal-stat-card .value {
+  font-size: 42px;
+  font-weight: bold;
+  margin-bottom: 5px;
+  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
+}
+
+.personal-stat-card .label {
+  font-size: 12px;
+  opacity: 0.8;
+}
+
+.charts-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
+  gap: 30px;
+}
+
+.chart-container {
+  background: white;
+  border-radius: 8px;
+  padding: 24px;
+  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
+}
+
+.chart-container h4 {
+  color: #333;
+  margin-bottom: 20px;
+  font-size: 18px;
+  font-weight: 600;
+}
+
+.activity-timeline {
+  background: white;
+  border-radius: 8px;
+  padding: 24px;
+  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
+  margin-top: 30px;
+}
+
+.activity-timeline h4 {
+  color: #333;
+  margin-bottom: 20px;
+  font-size: 18px;
+  font-weight: 600;
+}
+
+.breakdown-stats {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
+  gap: 15px;
+  margin-top: 20px;
+}
+
+.breakdown-item {
+  background: #f8f9fa;
+  border-radius: 8px;
+  padding: 15px;
+  text-align: center;
+}
+
+.breakdown-item .value {
+  font-size: 24px;
+  font-weight: bold;
+  color: #28a745;
+  margin-bottom: 5px;
+}
+
+.breakdown-item .label {
+  font-size: 12px;
+  color: #666;
+  text-transform: uppercase;
+  letter-spacing: 0.5px;
+}
+
+.achievement-badge {
+  display: inline-block;
+  background: linear-gradient(135deg, #ffd700 0%, #ffed4e 100%);
+  color: #333;
+  padding: 8px 16px;
+  border-radius: 20px;
+  font-size: 14px;
+  font-weight: 600;
+  margin-top: 15px;
+  box-shadow: 0 2px 4px rgba(255, 215, 0, 0.3);
+}
+
+.loading-personal-stats {
+  text-align: center;
+  padding: 60px;
+  color: #666;
+  font-size: 16px;
+}
+
+.no-personal-data {
+  text-align: center;
+  padding: 60px;
+  color: #999;
+  font-size: 16px;
+  background: white;
+  border-radius: 8px;
+  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
+}
+
+.no-personal-data p {
+  margin-bottom: 20px;
+}
+
+.get-started-btn {
+  background-color: #28a745;
+  color: white;
+  border: none;
+  padding: 12px 24px;
+  border-radius: 24px;
+  font-size: 16px;
+  cursor: pointer;
+  transition: background-color 0.3s ease;
+}
+
+.get-started-btn:hover {
+  background-color: #218838;
+}
+
+@media (max-width: 768px) {
+  .personal-stats-grid {
+    grid-template-columns: 1fr;
+  }
+
+  .personal-stat-card .value {
+    font-size: 32px;
+  }
+
+  .charts-grid {
+    grid-template-columns: 1fr;
+  }
+
+  .breakdown-stats {
+    grid-template-columns: 1fr 1fr;
+  }
+}

frontend/src/components/PersonalStats.js

@@ -0,0 +1,289 @@
+import React, { useState, useEffect, useContext } from "react";
+import axios from "axios";
+import { AuthContext } from "../context/AuthContext";
+import {
+  BarChart,
+  Bar,
+  XAxis,
+  YAxis,
+  CartesianGrid,
+  Tooltip,
+  ResponsiveContainer,
+  Legend,
+} from "recharts";
+import "./PersonalStats.css";
+
+const PersonalStats = ({ timeframe }) => {
+  const { user } = useContext(AuthContext);
+  const [stats, setStats] = useState(null);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState(null);
+
+  const fetchPersonalStats = async () => {
+    if (!user) return;
+
+    setLoading(true);
+    setError(null);
+
+    try {
+      const token = localStorage.getItem("token");
+      const config = {
+        headers: {
+          "x-auth-token": token,
+        },
+      };
+
+      const res = await axios.get(
+        `/api/analytics/user/${user._id}?timeframe=${timeframe}`,
+        config
+      );
+
+      setStats(res.data);
+    } catch (err) {
+      console.error("Error fetching personal stats:", err);
+      setError(err.response?.data?.msg || "Failed to load personal statistics");
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  useEffect(() => {
+    fetchPersonalStats();
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [timeframe, user]);
+
+  if (loading) {
+    return (
+      <div className="text-center">
+        <div className="spinner-border text-primary" role="status">
+          <span className="visually-hidden">Loading...</span>
+        </div>
+      </div>
+    );
+  }
+
+  if (error) {
+    return (
+      <div className="alert alert-danger" role="alert">
+        {error}
+      </div>
+    );
+  }
+
+  if (!stats) return null;
+
+  const chartData = [
+    { name: "Streets", value: stats.stats.streetsAdopted },
+    { name: "Tasks", value: stats.stats.tasksCompleted },
+    { name: "Posts", value: stats.stats.postsCreated },
+    { name: "Events", value: stats.stats.eventsParticipated },
+    { name: "Badges", value: stats.stats.badgesEarned },
+  ];
+
+  return (
+    <div className="personal-stats">
+      <div className="row mb-4">
+        <div className="col-md-12">
+          <div className="user-header">
+            <h3>{stats.user.name}</h3>
+            <div className="user-badges">
+              {stats.user.isPremium && (
+                <span className="badge bg-warning text-dark">Premium</span>
+              )}
+              <span className="badge bg-primary">{stats.user.points} Points</span>
+            </div>
+          </div>
+        </div>
+      </div>
+
+      <div className="row mb-4">
+        <div className="col-md-2">
+          <div className="stat-box">
+            <h4>{stats.stats.streetsAdopted}</h4>
+            <p>Streets</p>
+          </div>
+        </div>
+        <div className="col-md-2">
+          <div className="stat-box">
+            <h4>{stats.stats.tasksCompleted}</h4>
+            <p>Tasks</p>
+          </div>
+        </div>
+        <div className="col-md-2">
+          <div className="stat-box">
+            <h4>{stats.stats.postsCreated}</h4>
+            <p>Posts</p>
+          </div>
+        </div>
+        <div className="col-md-2">
+          <div className="stat-box">
+            <h4>{stats.stats.eventsParticipated}</h4>
+            <p>Events</p>
+          </div>
+        </div>
+        <div className="col-md-2">
+          <div className="stat-box">
+            <h4>{stats.stats.badgesEarned}</h4>
+            <p>Badges</p>
+          </div>
+        </div>
+        <div className="col-md-2">
+          <div className="stat-box">
+            <h4>{stats.stats.totalLikesReceived}</h4>
+            <p>Likes</p>
+          </div>
+        </div>
+      </div>
+
+      <div className="row mb-4">
+        <div className="col-md-6">
+          <div className="card">
+            <div className="card-header">
+              <h5>Activity Overview</h5>
+            </div>
+            <div className="card-body">
+              <ResponsiveContainer width="100%" height={300}>
+                <BarChart data={chartData}>
+                  <CartesianGrid strokeDasharray="3 3" />
+                  <XAxis dataKey="name" />
+                  <YAxis />
+                  <Tooltip />
+                  <Legend />
+                  <Bar dataKey="value" fill="#0d6efd" />
+                </BarChart>
+              </ResponsiveContainer>
+            </div>
+          </div>
+        </div>
+
+        <div className="col-md-6">
+          <div className="card">
+            <div className="card-header">
+              <h5>Points Summary</h5>
+            </div>
+            <div className="card-body">
+              <div className="points-summary">
+                <div className="points-row">
+                  <span className="points-label">Points Earned:</span>
+                  <span className="points-value text-success">
+                    +{stats.stats.pointsEarned}
+                  </span>
+                </div>
+                <div className="points-row">
+                  <span className="points-label">Points Spent:</span>
+                  <span className="points-value text-danger">
+                    -{stats.stats.pointsSpent}
+                  </span>
+                </div>
+                <hr />
+                <div className="points-row">
+                  <span className="points-label">
+                    <strong>Current Balance:</strong>
+                  </span>
+                  <span className="points-value">
+                    <strong>{stats.user.points}</strong>
+                  </span>
+                </div>
+              </div>
+
+              <div className="mt-4">
+                <h6>Engagement Metrics</h6>
+                <div className="engagement-metrics">
+                  <div className="metric">
+                    <span className="metric-icon">
+                      <i className="fas fa-heart"></i>
+                    </span>
+                    <span className="metric-value">
+                      {stats.stats.totalLikesReceived}
+                    </span>
+                    <span className="metric-label">Likes Received</span>
+                  </div>
+                  <div className="metric">
+                    <span className="metric-icon">
+                      <i className="fas fa-comment"></i>
+                    </span>
+                    <span className="metric-value">
+                      {stats.stats.totalCommentsReceived}
+                    </span>
+                    <span className="metric-label">Comments Received</span>
+                  </div>
+                </div>
+              </div>
+            </div>
+          </div>
+        </div>
+      </div>
+
+      {stats.recentActivity && (
+        <div className="row">
+          <div className="col-md-12">
+            <div className="card">
+              <div className="card-header">
+                <h5>Recent Activity</h5>
+              </div>
+              <div className="card-body">
+                <div className="row">
+                  <div className="col-md-4">
+                    <h6>Recent Tasks</h6>
+                    {stats.recentActivity.tasks.length > 0 ? (
+                      <ul className="list-unstyled">
+                        {stats.recentActivity.tasks.map((task) => (
+                          <li key={task._id} className="mb-2">
+                            <small className="text-muted">
+                              {new Date(task.completedAt || task.createdAt).toLocaleDateString()}
+                            </small>
+                            <div>{task.description}</div>
+                          </li>
+                        ))}
+                      </ul>
+                    ) : (
+                      <p className="text-muted">No recent tasks</p>
+                    )}
+                  </div>
+
+                  <div className="col-md-4">
+                    <h6>Recent Posts</h6>
+                    {stats.recentActivity.posts.length > 0 ? (
+                      <ul className="list-unstyled">
+                        {stats.recentActivity.posts.map((post) => (
+                          <li key={post._id} className="mb-2">
+                            <small className="text-muted">
+                              {new Date(post.createdAt).toLocaleDateString()}
+                            </small>
+                            <div>{post.content.substring(0, 50)}...</div>
+                          </li>
+                        ))}
+                      </ul>
+                    ) : (
+                      <p className="text-muted">No recent posts</p>
+                    )}
+                  </div>
+
+                  <div className="col-md-4">
+                    <h6>Recent Events</h6>
+                    {stats.recentActivity.events.length > 0 ? (
+                      <ul className="list-unstyled">
+                        {stats.recentActivity.events.map((event) => (
+                          <li key={event._id} className="mb-2">
+                            <small className="text-muted">
+                              {new Date(event.date).toLocaleDateString()}
+                            </small>
+                            <div>{event.title}</div>
+                          </li>
+                        ))}
+                      </ul>
+                    ) : (
+                      <p className="text-muted">No recent events</p>
+                    )}
+                  </div>
+                </div>
+              </div>
+            </div>
+          </div>
+        </div>
+      )}
+    </div>
+  );
+};
+
+export default PersonalStats;

frontend/src/components/StreetStatsChart.js

@@ -0,0 +1,137 @@
+import React from "react";
+import { PieChart, Pie, Cell, ResponsiveContainer, Legend, Tooltip } from "recharts";
+
+const StreetStatsChart = ({ data }) => {
+  if (!data) return null;
+
+  const adoptionData = [
+    { name: "Adopted", value: data.adoption.adoptedStreets, color: "#198754" },
+    { name: "Available", value: data.adoption.availableStreets, color: "#6c757d" },
+  ];
+
+  const taskData = [
+    { name: "Completed", value: data.tasks.completedTasks, color: "#0d6efd" },
+    { name: "Pending", value: data.tasks.pendingTasks, color: "#ffc107" },
+    { name: "In Progress", value: data.tasks.inProgressTasks, color: "#fd7e14" },
+  ];
+
+  const RADIAN = Math.PI / 180;
+  const renderCustomizedLabel = ({
+    cx,
+    cy,
+    midAngle,
+    innerRadius,
+    outerRadius,
+    percent,
+  }) => {
+    const radius = innerRadius + (outerRadius - innerRadius) * 0.5;
+    const x = cx + radius * Math.cos(-midAngle * RADIAN);
+    const y = cy + radius * Math.sin(-midAngle * RADIAN);
+
+    return (
+      <text
+        x={x}
+        y={y}
+        fill="white"
+        textAnchor={x > cx ? "start" : "end"}
+        dominantBaseline="central"
+        fontWeight="bold"
+      >
+        {`${(percent * 100).toFixed(0)}%`}
+      </text>
+    );
+  };
+
+  return (
+    <div>
+      <div className="row mb-4">
+        <div className="col-md-4">
+          <div className="stat-highlight">
+            <h3>{data.adoption.adoptionRate}%</h3>
+            <p className="text-muted">Adoption Rate</p>
+          </div>
+        </div>
+        <div className="col-md-4">
+          <div className="stat-highlight">
+            <h3>{data.tasks.completionRate}%</h3>
+            <p className="text-muted">Task Completion Rate</p>
+          </div>
+        </div>
+        <div className="col-md-4">
+          <div className="stat-highlight">
+            <h3>{data.adoption.totalStreets}</h3>
+            <p className="text-muted">Total Streets</p>
+          </div>
+        </div>
+      </div>
+
+      <div className="row">
+        <div className="col-md-6">
+          <h6 className="text-center mb-3">Street Adoption</h6>
+          <ResponsiveContainer width="100%" height={250}>
+            <PieChart>
+              <Pie
+                data={adoptionData}
+                cx="50%"
+                cy="50%"
+                labelLine={false}
+                label={renderCustomizedLabel}
+                outerRadius={80}
+                fill="#8884d8"
+                dataKey="value"
+              >
+                {adoptionData.map((entry, index) => (
+                  <Cell key={`cell-${index}`} fill={entry.color} />
+                ))}
+              </Pie>
+              <Tooltip />
+              <Legend />
+            </PieChart>
+          </ResponsiveContainer>
+        </div>
+
+        <div className="col-md-6">
+          <h6 className="text-center mb-3">Task Status</h6>
+          <ResponsiveContainer width="100%" height={250}>
+            <PieChart>
+              <Pie
+                data={taskData}
+                cx="50%"
+                cy="50%"
+                labelLine={false}
+                label={renderCustomizedLabel}
+                outerRadius={80}
+                fill="#8884d8"
+                dataKey="value"
+              >
+                {taskData.map((entry, index) => (
+                  <Cell key={`cell-${index}`} fill={entry.color} />
+                ))}
+              </Pie>
+              <Tooltip />
+              <Legend />
+            </PieChart>
+          </ResponsiveContainer>
+        </div>
+      </div>
+
+      {data.topStreets && data.topStreets.length > 0 && (
+        <div className="mt-4">
+          <h6>Top Streets by Task Completion</h6>
+          <div className="list-group">
+            {data.topStreets.slice(0, 5).map((street, index) => (
+              <div key={street.streetId} className="list-group-item d-flex justify-content-between align-items-center">
+                <span>
+                  <strong>#{index + 1}</strong> {street.streetName}
+                </span>
+                <span className="badge bg-primary rounded-pill">{street.count} tasks</span>
+              </div>
+            ))}
+          </div>
+        </div>
+      )}
+    </div>
+  );
+};
+
+export default StreetStatsChart;

frontend/src/components/profile/ProfileView.js

@@ -0,0 +1,71 @@
+import React, { useState, useEffect, useContext } from \"react\";
+import { useParams, Link } from \"react-router-dom\";
+import axios from \"axios\";
+const { AuthContext } = require(\"../../context/AuthContext\");
+
+const ProfileView = () => {
+  const { userId } = useParams();
+  const { auth } = useContext(AuthContext);
+  const [profile, setProfile] = useState(null);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState(null);
+
+  useEffect(() => {
+    const fetchProfile = async () => {
+      try {
+        const res = await axios.get((/api/profile/${userId}`);
+        setProfile(res.data);
+      } catch (err) {
+        setError(err.response?.ager = == auth.user._id;
+
+  return (
+    <div className=\"container mt-5\">
+      <div className=\"row\">
+        <div className=\"col-md-4 text-center\">
+          <img 
+            src={`npame"} id: auth.user._id });
+          setProfile(res.data);
+        } catch (err) {
+          setError(err.response?.data?.msg || \"Error fetching profile\");
+        }
+        setLoading(false);
+      };
+
+      fetchProfile();
+    }, [userId]);
+
+  if (loading) {
+    return <div className=\"container\"><p>Loading profile...</p></div>;
+  }
+
+  if (error) {
+    return <div className=\"container\"><div className=\"alert alert-danger\">{error}</div></div>;
+  }
+
+  if (!profile) {
+    return <div className=\"container\"><p>Profile not found.</p></div>;
+  }
+
+  const { name, avatar, bio, location, website, social, preferences } = profile;
+  const isOwnProfile = auth.isAuthenticated && auth.user._id === userId;
+
+  return (
+    <div className=\"container mt-5\">
+      <div className=\"row\">
+        <div className=\"col-md-4 text-center\">
+          <img 
+            src={avatar || \"/logo512.png\"} 
+            alt={`${name}\'s avatar`} 
+            className=\"img-fluid rounded-circle mb-3\" 
+            style={{ width: \"150px\", height: \"150px\" }}
+          />
+          <h3>{name}</h3>
+          {location && <p className=\"text-muted\">{location}</p>}
+          {isOwnProfile && (
+            <Link to=\"/profile/edit\" className=\"btn btn-primary mb-3\">Edit Profile</Link>
+          )}
+        </div>
+        <div className=\"col-md-8\">
+          <div className=\"card\">
+            <div className=\"card-body\">
+