#!/usr/bin/env bash
# Install git hooks for the project

set -e

HOOKS_DIR=".git/hooks"
SCRIPTS_DIR="scripts"

echo "Installing git hooks..."
echo ""

# Create hooks directory if it doesn't exist
mkdir -p "$HOOKS_DIR"

# Pre-commit hook
cat > "$HOOKS_DIR/pre-commit" << 'EOF'
#!/usr/bin/env bash
# Git pre-commit hook - runs linting before commit

echo "🔍 Running pre-commit linting..."
echo ""

# Try to use nix run if available, otherwise use script directly
if command -v nix &> /dev/null && [ -f "flake.nix" ]; then
    # Use nix run for consistent environment
    if ! nix run .#lint; then
        echo ""
        echo "❌ Linting failed. Fix errors or use --no-verify to skip."
        echo "   Auto-fix: nix run .#lint-fix"
        exit 1
    fi
else
    # Fallback to script
    if ! ./scripts/lint.sh; then
        echo ""
        echo "❌ Linting failed. Fix errors or use --no-verify to skip."
        echo "   Auto-fix: ./scripts/lint.sh --fix"
        exit 1
    fi
fi

echo ""
echo "✅ Pre-commit checks passed!"
EOF

chmod +x "$HOOKS_DIR/pre-commit"
echo "✓ Installed pre-commit hook"

# Pre-push hook (DISABLED by default - enable when tests are ready)
cat > "$HOOKS_DIR/pre-push.disabled" << 'EOF'
#!/usr/bin/env bash
# Git pre-push hook - runs tests before push
# 
# TO ENABLE: Rename this file to 'pre-push' (remove .disabled)
# TO DISABLE: Rename back to 'pre-push.disabled'
# OR use: git push --no-verify

echo "🧪 Running tests before push..."
echo ""

# Backend tests (if pytest is available)
if [ -d "backend" ] && command -v pytest &> /dev/null; then
    cd backend
    # Run tests without coverage requirement for pre-push
    if ! pytest -xvs --tb=short --no-cov; then
        echo ""
        echo "❌ Backend tests failed. Fix tests or use --no-verify to skip."
        exit 1
    fi
    cd ..
fi

# Frontend tests (if npm test is available)
if [ -d "frontend/node_modules" ]; then
    cd frontend
    if ! npm test -- --run; then
        echo ""
        echo "❌ Frontend tests failed. Fix tests or use --no-verify to skip."
        exit 1
    fi
    cd ..
fi

echo ""
echo "✅ All tests passed!"
EOF

chmod +x "$HOOKS_DIR/pre-push.disabled"
echo "✓ Created pre-push hook template (disabled by default)"
echo "  To enable: mv .git/hooks/pre-push.disabled .git/hooks/pre-push"

echo ""
echo "========================================="
echo "✅ Git hooks installed successfully!"
echo "========================================="
echo ""
echo "Hooks installed:"
echo "  • pre-commit  - Runs linting before commit"
echo "  • pre-push    - Runs tests before push (optional)"
echo ""
echo "To skip hooks when committing:"
echo "  git commit --no-verify"
echo ""
echo "To uninstall:"
echo "  rm .git/hooks/pre-commit .git/hooks/pre-push"
echo ""