#!/bin/bash
# Debug script for troubleshooting Claude Code configuration
# Usage: ./debug.sh [--full|--json|--paths]

set -euo pipefail

CLAUDE_DIR="${HOME}/.claude"

# Colors
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
NC='\033[0m'

info() { echo -e "${BLUE}ℹ${NC} $1"; }
ok() { echo -e "${GREEN}✓${NC} $1"; }
warn() { echo -e "${YELLOW}⚠${NC} $1"; }
error() { echo -e "${RED}✗${NC} $1"; }

show_paths() {
    echo ""
    echo "=== Configuration Paths ==="
    echo ""
    echo "CLAUDE_DIR: ${CLAUDE_DIR}"
    echo ""
    echo "Key files:"
    echo "  CLAUDE.md:        ${CLAUDE_DIR}/CLAUDE.md"
    echo "  plugin.json:      ${CLAUDE_DIR}/.claude-plugin/plugin.json"
    echo "  hooks.json:       ${CLAUDE_DIR}/hooks/hooks.json"
    echo "  registry.json:    ${CLAUDE_DIR}/state/component-registry.json"
    echo ""
    echo "Memory:"
    echo "  preferences:      ${CLAUDE_DIR}/state/personal-assistant/memory/preferences.json"
    echo "  decisions:        ${CLAUDE_DIR}/state/personal-assistant/memory/decisions.json"
    echo "  history index:    ${CLAUDE_DIR}/state/personal-assistant/history/index.json"
    echo ""
    echo "Logs:"
    echo "  maintenance:      ${CLAUDE_DIR}/logs/maintenance-*.log"
    echo ""
}

check_file() {
    local path="$1"
    local name="$2"
    if [[ -f "$path" ]]; then
        local size=$(stat -c %s "$path" 2>/dev/null || stat -f %z "$path" 2>/dev/null || echo "?")
        ok "$name ($size bytes)"
        return 0
    else
        error "$name (missing)"
        return 1
    fi
}

check_json() {
    local path="$1"
    local name="$2"
    if [[ -f "$path" ]]; then
        if python3 -c "import json; json.load(open('$path'))" 2>/dev/null; then
            ok "$name (valid JSON)"
            return 0
        else
            error "$name (invalid JSON)"
            return 1
        fi
    else
        warn "$name (file missing)"
        return 1
    fi
}

check_script() {
    local path="$1"
    local name="$2"
    if [[ -f "$path" ]]; then
        if [[ -x "$path" ]]; then
            ok "$name (executable)"
        else
            warn "$name (not executable)"
        fi
    else
        error "$name (missing)"
    fi
}

show_summary() {
    echo ""
    echo "🔍 Claude Code Debug Report"
    echo "   Generated: $(date)"
    echo ""

    # Version
    echo "=== Version ==="
    if [[ -f "${CLAUDE_DIR}/VERSION" ]]; then
        echo "  Version: $(cat "${CLAUDE_DIR}/VERSION")"
    else
        echo "  Version: unknown"
    fi
    echo ""

    # Core files
    echo "=== Core Files ==="
    check_file "${CLAUDE_DIR}/CLAUDE.md" "CLAUDE.md"
    check_json "${CLAUDE_DIR}/.claude-plugin/plugin.json" "plugin.json"
    check_json "${CLAUDE_DIR}/hooks/hooks.json" "hooks.json"
    check_json "${CLAUDE_DIR}/state/component-registry.json" "component-registry.json"
    echo ""

    # State files
    echo "=== State Files ==="
    check_json "${CLAUDE_DIR}/state/personal-assistant-preferences.json" "PA preferences"
    check_json "${CLAUDE_DIR}/state/personal-assistant/session-context.json" "Session context"
    check_json "${CLAUDE_DIR}/state/personal-assistant/general-instructions.json" "General instructions"
    check_json "${CLAUDE_DIR}/state/sysadmin/session-autonomy.json" "Sysadmin autonomy"
    echo ""

    # Memory
    echo "=== Memory Files ==="
    check_json "${CLAUDE_DIR}/state/personal-assistant/memory/preferences.json" "Memory: preferences"
    check_json "${CLAUDE_DIR}/state/personal-assistant/memory/decisions.json" "Memory: decisions"
    check_json "${CLAUDE_DIR}/state/personal-assistant/memory/projects.json" "Memory: projects"
    check_json "${CLAUDE_DIR}/state/personal-assistant/memory/facts.json" "Memory: facts"
    check_json "${CLAUDE_DIR}/state/personal-assistant/history/index.json" "History index"
    echo ""

    # Scripts
    echo "=== Key Scripts ==="
    check_script "${CLAUDE_DIR}/automation/validate-setup.sh" "validate-setup.sh"
    check_script "${CLAUDE_DIR}/automation/quick-status.sh" "quick-status.sh"
    check_script "${CLAUDE_DIR}/automation/backup.sh" "backup.sh"
    check_script "${CLAUDE_DIR}/automation/install.sh" "install.sh"
    check_script "${CLAUDE_DIR}/hooks/scripts/session-start.sh" "session-start.sh"
    echo ""

    # Skills
    echo "=== Skills ==="
    skill_count=$(find "${CLAUDE_DIR}/skills" -name "SKILL.md" 2>/dev/null | wc -l)
    echo "  Skills found: $skill_count"
    find "${CLAUDE_DIR}/skills" -name "SKILL.md" -exec dirname {} \; 2>/dev/null | while read dir; do
        echo "    - $(basename "$dir")"
    done
    echo ""

    # Commands
    echo "=== Commands ==="
    cmd_count=$(find "${CLAUDE_DIR}/commands" -name "*.md" ! -name "README.md" 2>/dev/null | wc -l)
    echo "  Commands found: $cmd_count"
    echo ""

    # Agents
    echo "=== Agents ==="
    agent_count=$(find "${CLAUDE_DIR}/agents" -name "*.md" ! -name "README.md" 2>/dev/null | wc -l)
    echo "  Agent files found: $agent_count"
    echo ""

    # Environment
    echo "=== Environment ==="
    echo "  HOME: $HOME"
    echo "  USER: ${USER:-$(whoami)}"
    echo "  Shell: ${SHELL:-unknown}"
    echo "  Python: $(python3 --version 2>&1 || echo 'not found')"
    if command -v kubectl &> /dev/null; then
        ok "kubectl installed"
    else
        warn "kubectl not found"
    fi
    echo ""

    # Disk usage
    echo "=== Disk Usage ==="
    total=$(du -sh "${CLAUDE_DIR}" 2>/dev/null | cut -f1)
    echo "  Total: $total"
    echo ""
    echo "  By directory:"
    du -sh "${CLAUDE_DIR}"/{agents,automation,commands,hooks,mcp,skills,state,workflows,logs,backups} 2>/dev/null | while read size dir; do
        echo "    $(basename "$dir"): $size"
    done
    echo ""
}

show_json() {
    echo "{"
    echo "  \"version\": \"$(cat "${CLAUDE_DIR}/VERSION" 2>/dev/null || echo 'unknown')\","
    echo "  \"timestamp\": \"$(date -Iseconds)\","
    echo "  \"paths\": {"
    echo "    \"claude_dir\": \"${CLAUDE_DIR}\","
    echo "    \"home\": \"$HOME\""
    echo "  },"

    # Count components
    skill_count=$(find "${CLAUDE_DIR}/skills" -name "SKILL.md" 2>/dev/null | wc -l | tr -d ' ')
    cmd_count=$(find "${CLAUDE_DIR}/commands" -name "*.md" ! -name "README.md" 2>/dev/null | wc -l | tr -d ' ')
    agent_count=$(find "${CLAUDE_DIR}/agents" -name "*.md" ! -name "README.md" 2>/dev/null | wc -l | tr -d ' ')

    echo "  \"components\": {"
    echo "    \"skills\": $skill_count,"
    echo "    \"commands\": $cmd_count,"
    echo "    \"agents\": $agent_count"
    echo "  },"

    # Check files
    files_ok=true
    for f in CLAUDE.md .claude-plugin/plugin.json hooks/hooks.json state/component-registry.json; do
        if [[ ! -f "${CLAUDE_DIR}/$f" ]]; then
            files_ok=false
            break
        fi
    done

    echo "  \"status\": {"
    echo "    \"core_files\": $files_ok,"
    echo "    \"python\": $(python3 --version &>/dev/null && echo true || echo false),"
    echo "    \"kubectl\": $(command -v kubectl &>/dev/null && echo true || echo false)"
    echo "  }"
    echo "}"
}

# Parse arguments
case "${1:-}" in
    --paths)
        show_paths
        ;;
    --json)
        show_json
        ;;
    --full|*)
        show_summary
        ;;
esac