// Mock CouchDB service for testing
const mockCouchdbService = {
  createDocument: jest.fn(),
  findDocumentById: jest.fn(),
  updateDocument: jest.fn(),
  findByType: jest.fn(),
  initialize: jest.fn(),
  getDocument: jest.fn(),
};

// Mock the service module
jest.mock('../../services/couchdbService', () => mockCouchdbService);

const Badge = require('../../models/Badge');

describe('Badge Model', () => {
  beforeEach(() => {
    jest.clearAllMocks();
    // Reset all mocks to ensure clean state
    mockCouchdbService.createDocument.mockReset();
    mockCouchdbService.findDocumentById.mockReset();
    mockCouchdbService.updateDocument.mockReset();
    mockCouchdbService.findByType.mockReset();
  });

  describe('Schema Validation', () => {
    it('should create a valid badge', async () => {
      const badgeData = {
        name: 'Street Cleaner',
        description: 'Awarded for completing 10 street cleaning tasks',
        icon: 'broom',
        category: 'maintenance',
        requirement: {
          type: 'task_count',
          value: 10,
          taskType: 'cleaning'
        }
      };

      const mockCreated = {
        _id: 'badge_123',
        _rev: '1-abc',
        type: 'badge',
        ...badgeData,
        isActive: true,
        pointsAwarded: 50,
        createdAt: '2023-01-01T00:00:00.000Z',
        updatedAt: '2023-01-01T00:00:00.000Z'
      };

      mockCouchdbService.createDocument.mockResolvedValue(mockCreated);

      const badge = await Badge.create(badgeData);

      expect(badge._id).toBeDefined();
      expect(badge.name).toBe(badgeData.name);
      expect(badge.description).toBe(badgeData.description);
      expect(badge.icon).toBe(badgeData.icon);
      expect(badge.category).toBe(badgeData.category);
      expect(badge.requirement.type).toBe(badgeData.requirement.type);
      expect(badge.isActive).toBe(true);
      expect(badge.pointsAwarded).toBe(50);
    });

    it('should require name field', async () => {
      const badgeData = {
        description: 'Badge without name',
        icon: 'star',
        category: 'achievement',
      };

      expect(() => new Badge(badgeData)).toThrow();
    });

    it('should require description field', async () => {
      const badgeData = {
        name: 'Badge without description',
        icon: 'star',
        category: 'achievement',
      };

      expect(() => new Badge(badgeData)).toThrow();
    });

    it('should require icon field', async () => {
      const badgeData = {
        name: 'Badge without icon',
        description: 'This badge has no icon',
        category: 'achievement',
      };

      expect(() => new Badge(badgeData)).toThrow();
    });

    it('should require category field', async () => {
      const badgeData = {
        name: 'Badge without category',
        description: 'This badge has no category',
        icon: 'star',
      };

      expect(() => new Badge(badgeData)).toThrow();
    });

    it('should require requirement field', async () => {
      const badgeData = {
        name: 'Badge without requirement',
        description: 'This badge has no requirement',
        icon: 'star',
        category: 'achievement',
      };

      expect(() => new Badge(badgeData)).toThrow();
    });
  });

  describe('Categories', () => {
    const validCategories = ['achievement', 'maintenance', 'social', 'milestone', 'special'];

    validCategories.forEach(category => {
      it(`should accept "${category}" as valid category`, async () => {
        const badgeData = {
          name: `${category} Badge`,
          description: `Testing ${category} category`,
          icon: 'star',
          category,
          requirement: {
            type: 'task_count',
            value: 5
          }
        };

        const mockCreated = {
          _id: 'badge_123',
          _rev: '1-abc',
          type: 'badge',
          ...badgeData,
          isActive: true,
          pointsAwarded: 25,
          createdAt: '2023-01-01T00:00:00.000Z',
          updatedAt: '2023-01-01T00:00:00.000Z'
        };

        mockCouchdbService.createDocument.mockResolvedValue(mockCreated);

        const badge = await Badge.create(badgeData);

        expect(badge.category).toBe(category);
      });
    });

    it('should reject invalid category', async () => {
      const badgeData = {
        name: 'Invalid Category Badge',
        description: 'This badge has invalid category',
        icon: 'star',
        category: 'invalid_category',
        requirement: {
          type: 'task_count',
          value: 5
        }
      };

      expect(() => new Badge(badgeData)).toThrow();
    });
  });

  describe('Requirement Types', () => {
    const validRequirementTypes = [
      { type: 'task_count', value: 10 },
      { type: 'street_count', value: 5 },
      { type: 'points_earned', value: 1000 },
      { type: 'event_participation', value: 3 },
      { type: 'streak_days', value: 7 }
    ];

    validRequirementTypes.forEach(requirement => {
      it(`should accept "${requirement.type}" as valid requirement type`, async () => {
        const badgeData = {
          name: `${requirement.type} Badge`,
          description: `Testing ${requirement.type} requirement`,
          icon: 'star',
          category: 'achievement',
          requirement
        };

        const mockCreated = {
          _id: 'badge_123',
          _rev: '1-abc',
          type: 'badge',
          ...badgeData,
          isActive: true,
          pointsAwarded: 25,
          createdAt: '2023-01-01T00:00:00.000Z',
          updatedAt: '2023-01-01T00:00:00.000Z'
        };

        mockCouchdbService.createDocument.mockResolvedValue(mockCreated);

        const badge = await Badge.create(badgeData);

        expect(badge.requirement.type).toBe(requirement.type);
        expect(badge.requirement.value).toBe(requirement.value);
      });
    });
  });

  describe('Default Values', () => {
    it('should default isActive to true', async () => {
      const badgeData = {
        name: 'Default Active Badge',
        description: 'Testing default active status',
        icon: 'star',
        category: 'achievement',
        requirement: {
          type: 'task_count',
          value: 5
        }
      };

      const mockCreated = {
        _id: 'badge_123',
        _rev: '1-abc',
        type: 'badge',
        ...badgeData,
        isActive: true,
        pointsAwarded: 25,
        createdAt: '2023-01-01T00:00:00.000Z',
        updatedAt: '2023-01-01T00:00:00.000Z'
      };

      mockCouchdbService.createDocument.mockResolvedValue(mockCreated);

      const badge = await Badge.create(badgeData);

      expect(badge.isActive).toBe(true);
    });

    it('should default pointsAwarded to 25', async () => {
      const badgeData = {
        name: 'Default Points Badge',
        description: 'Testing default points',
        icon: 'star',
        category: 'achievement',
        requirement: {
          type: 'task_count',
          value: 5
        }
      };

      const mockCreated = {
        _id: 'badge_123',
        _rev: '1-abc',
        type: 'badge',
        ...badgeData,
        isActive: true,
        pointsAwarded: 25,
        createdAt: '2023-01-01T00:00:00.000Z',
        updatedAt: '2023-01-01T00:00:00.000Z'
      };

      mockCouchdbService.createDocument.mockResolvedValue(mockCreated);

      const badge = await Badge.create(badgeData);

      expect(badge.pointsAwarded).toBe(25);
    });
  });

  describe('Custom Values', () => {
    it('should allow custom isActive value', async () => {
      const badgeData = {
        name: 'Inactive Badge',
        description: 'This badge is inactive',
        icon: 'star',
        category: 'achievement',
        requirement: {
          type: 'task_count',
          value: 5
        },
        isActive: false
      };

      const mockCreated = {
        _id: 'badge_123',
        _rev: '1-abc',
        type: 'badge',
        ...badgeData,
        pointsAwarded: 25,
        createdAt: '2023-01-01T00:00:00.000Z',
        updatedAt: '2023-01-01T00:00:00.000Z'
      };

      mockCouchdbService.createDocument.mockResolvedValue(mockCreated);

      const badge = await Badge.create(badgeData);

      expect(badge.isActive).toBe(false);
    });

    it('should allow custom pointsAwarded value', async () => {
      const badgeData = {
        name: 'Custom Points Badge',
        description: 'This badge gives custom points',
        icon: 'star',
        category: 'achievement',
        requirement: {
          type: 'task_count',
          value: 5
        },
        pointsAwarded: 100
      };

      const mockCreated = {
        _id: 'badge_123',
        _rev: '1-abc',
        type: 'badge',
        ...badgeData,
        isActive: true,
        createdAt: '2023-01-01T00:00:00.000Z',
        updatedAt: '2023-01-01T00:00:00.000Z'
      };

      mockCouchdbService.createDocument.mockResolvedValue(mockCreated);

      const badge = await Badge.create(badgeData);

      expect(badge.pointsAwarded).toBe(100);
    });
  });

  describe('Complex Requirements', () => {
    it('should allow requirements with additional properties', async () => {
      const badgeData = {
        name: 'Complex Requirement Badge',
        description: 'Badge with complex requirement',
        icon: 'star',
        category: 'achievement',
        requirement: {
          type: 'task_count',
          value: 10,
          taskType: 'cleaning',
          timeFrame: '30_days',
          streetStatus: 'adopted'
        }
      };

      const mockCreated = {
        _id: 'badge_123',
        _rev: '1-abc',
        type: 'badge',
        ...badgeData,
        isActive: true,
        pointsAwarded: 25,
        createdAt: '2023-01-01T00:00:00.000Z',
        updatedAt: '2023-01-01T00:00:00.000Z'
      };

      mockCouchdbService.createDocument.mockResolvedValue(mockCreated);

      const badge = await Badge.create(badgeData);

      expect(badge.requirement.taskType).toBe('cleaning');
      expect(badge.requirement.timeFrame).toBe('30_days');
      expect(badge.requirement.streetStatus).toBe('adopted');
    });
  });

  describe('Timestamps', () => {
    it('should automatically set createdAt and updatedAt', async () => {
      const badgeData = {
        name: 'Timestamp Badge',
        description: 'Testing timestamps',
        icon: 'star',
        category: 'achievement',
        requirement: {
          type: 'task_count',
          value: 5
        }
      };

      const mockCreated = {
        _id: 'badge_123',
        _rev: '1-abc',
        type: 'badge',
        ...badgeData,
        isActive: true,
        pointsAwarded: 25,
        createdAt: '2023-01-01T00:00:00.000Z',
        updatedAt: '2023-01-01T00:00:00.000Z'
      };

      mockCouchdbService.createDocument.mockResolvedValue(mockCreated);

      const badge = await Badge.create(badgeData);

      expect(badge.createdAt).toBeDefined();
      expect(badge.updatedAt).toBeDefined();
      expect(typeof badge.createdAt).toBe('string');
      expect(typeof badge.updatedAt).toBe('string');
    });

    it('should update updatedAt on modification', async () => {
      const badgeData = {
        name: 'Update Test Badge',
        description: 'Testing update timestamp',
        icon: 'star',
        category: 'achievement',
        requirement: {
          type: 'task_count',
          value: 5
        }
      };

      const mockBadge = {
        _id: 'badge_123',
        _rev: '1-abc',
        type: 'badge',
        ...badgeData,
        isActive: true,
        pointsAwarded: 25,
        createdAt: '2023-01-01T00:00:00.000Z',
        updatedAt: '2023-01-01T00:00:00.000Z'
      };

      couchdbService.findDocumentById.mockResolvedValue(mockBadge);
      couchdbService.updateDocument.mockResolvedValue({
        ...mockBadge,
        isActive: false,
        _rev: '2-def',
        updatedAt: '2023-01-01T00:00:01.000Z'
      });

      const badge = await Badge.findById('badge_123');
      const originalUpdatedAt = badge.updatedAt;

      badge.isActive = false;
      await badge.save();

      expect(badge.updatedAt).not.toBe(originalUpdatedAt);
    });
  });

  describe('Static Methods', () => {
    it('should find badge by ID', async () => {
      const mockBadge = {
        _id: 'badge_123',
        _rev: '1-abc',
        type: 'badge',
        name: 'Test Badge',
        description: 'Test description',
        icon: 'star',
        category: 'achievement',
        requirement: {
          type: 'task_count',
          value: 5
        },
        isActive: true,
        pointsAwarded: 25,
        createdAt: '2023-01-01T00:00:00.000Z',
        updatedAt: '2023-01-01T00:00:00.000Z'
      };

      couchdbService.findDocumentById.mockResolvedValue(mockBadge);

      const badge = await Badge.findById('badge_123');
      expect(badge).toBeDefined();
      expect(badge._id).toBe('badge_123');
      expect(badge.name).toBe('Test Badge');
    });

    it('should return null when badge not found', async () => {
      couchdbService.findDocumentById.mockResolvedValue(null);

      const badge = await Badge.findById('nonexistent');
      expect(badge).toBeNull();
    });
  });
});