#!/bin/bash

# Load shared libraries
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "$SCRIPT_DIR/../lib/init.sh"

# Automated script to help migrate DBIS projects to monorepo

set -e

PROJECT_NAME="${1:-}"
MONOREPO_PATH="${2:-dbis_monorepo}"
TARGET_DIR="${3:-packages}"

if [ -z "$PROJECT_NAME" ]; then
  echo "📦 DBIS Project Migration Automation"
  echo ""
  echo "Usage: $0 <project-name> [monorepo-path] [target-dir]"
  echo ""
  echo "Example: $0 dbis_core dbis_monorepo packages"
  echo ""
  echo "This script automates the migration of a DBIS project to the monorepo."
  exit 1
fi

SOURCE_PATH="../${PROJECT_NAME}"
TARGET_PATH="${MONOREPO_PATH}/${TARGET_DIR}/${PROJECT_NAME}"

echo "📦 Migrating $PROJECT_NAME to DBIS monorepo..."

# Check if source project exists
if [ ! -d "$SOURCE_PATH" ]; then
  echo "❌ Source project not found: $SOURCE_PATH"
  exit 1
fi

# Check if monorepo exists
if [ ! -d "$MONOREPO_PATH" ]; then
  echo "❌ Monorepo not found: $MONOREPO_PATH"
  exit 1
fi

# Create target directory
echo "📁 Creating target directory..."
mkdir -p "$TARGET_PATH"

# Copy project files (excluding node_modules, .git, etc.)
echo "📋 Copying project files..."
rsync -av --exclude='node_modules' \
          --exclude='.git' \
          --exclude='dist' \
          --exclude='build' \
          --exclude='.next' \
          --exclude='coverage' \
          --exclude='.turbo' \
          "$SOURCE_PATH/" "$TARGET_PATH/"

# Update package.json
if [ -f "$TARGET_PATH/package.json" ]; then
  echo "📝 Updating package.json..."

  # Create backup
  cp "$TARGET_PATH/package.json" "$TARGET_PATH/package.json.bak"

  # Update package name
  if command -v jq &> /dev/null; then
    jq ".name = \"@dbis/${PROJECT_NAME}\"" "$TARGET_PATH/package.json" > "$TARGET_PATH/package.json.tmp"
    mv "$TARGET_PATH/package.json.tmp" "$TARGET_PATH/package.json"
  else
    echo "⚠️  jq not found, please manually update package.json name to @dbis/${PROJECT_NAME}"
  fi

  # Update dependencies to use workspace packages
  echo "📝 Updating dependencies to use workspace packages..."
  # This would need more sophisticated logic, but provides guidance
  echo "   → Review and update dependencies to use @dbis/* and @workspace/* packages"
fi

# Create migration notes
cat > "$TARGET_PATH/MIGRATION_NOTES.md" << EOF
# Migration Notes for ${PROJECT_NAME}

**Migrated**: $(date)
**Source**: ${SOURCE_PATH}
**Target**: ${TARGET_PATH}

## Changes Made

1. Project copied to monorepo
2. Package name updated to @dbis/${PROJECT_NAME}
3. Dependencies need manual review

## Next Steps

1. Review and update package.json dependencies:
   - Replace local packages with @dbis/* packages
   - Replace common packages with @workspace/* packages

2. Update imports:
   - Update relative imports
   - Use @dbis/* and @workspace/* packages

3. Update CI/CD:
   - Remove individual CI/CD configs
   - Use monorepo CI/CD

4. Test:
   - Run \`pnpm install\` in monorepo root
   - Run \`pnpm build\` to verify build
   - Run \`pnpm test\` to verify tests

5. Update documentation:
   - Update README
   - Update any project-specific docs

## Verification

- [ ] Package.json updated
- [ ] Dependencies updated
- [ ] Imports updated
- [ ] Build successful
- [ ] Tests passing
- [ ] Documentation updated
EOF

echo "✅ Migration automation complete!"
echo ""
echo "📝 Project copied to: $TARGET_PATH"
echo "📝 Migration notes created: $TARGET_PATH/MIGRATION_NOTES.md"
echo ""
echo "📋 Next steps:"
echo "   1. Review $TARGET_PATH/MIGRATION_NOTES.md"
echo "   2. Update package.json dependencies"
echo "   3. Update imports"
echo "   4. Test build and tests"
echo "   5. Update documentation"