#!/usr/bin/env node

/**
 * Generate Docker Compose Files with Versioned Images
 * 
 * This script generates docker-compose files with the appropriate image tags
 * based on the current version and git state.
 */

const fs = require('fs');
const path = require('path');
const { execSync } = require('child_process');

// Configuration
const REGISTRY = 'euchre-camp';
const IMAGE_NAME = 'euchre-camp';

// Get current version from package.json
function getCurrentVersion() {
  const packageJsonPath = path.join(__dirname, '..', 'package.json');
  const packageJson = JSON.parse(fs.readFileSync(packageJsonPath, 'utf8'));
  return packageJson.version;
}

// Get git tag (if any)
function getGitTag() {
  try {
    const tag = execSync('git describe --tags --exact-match 2>/dev/null', { encoding: 'utf8' }).trim();
    return tag;
  } catch (error) {
    return null;
  }
}

// Get image tag based on git state
function getImageTag() {
  const version = getCurrentVersion();
  const gitTag = getGitTag();

  if (gitTag) {
    // Tagged commit - use version tag
    return version;
  } else {
    // Untagged commit - use .dev suffix
    return `${version}.dev`;
  }
}

// Generate docker-compose.casaos.yml
function generateCasaosYml(imageTag) {
  return `# CasaOS Optimized Docker Compose Configuration
# This file is optimized for deployment on CasaOS
# Usage: docker-compose -f docker-compose.casaos.yml up -d
#
# IMPORTANT: This configuration requires an external PostgreSQL database.
# Set DATABASE_URL environment variable to your PostgreSQL connection string.

services:
  app:
    image: ${REGISTRY}/${IMAGE_NAME}:${imageTag}
    container_name: euchre-camp
    ports:
      - "51193:3000"
    environment:
      # Database Configuration (REQUIRED: Set via CasaOS environment variables)
      - DATABASE_PROVIDER=postgresql
      - DATABASE_URL="postgresql://euchre_camp:LINGO5row_hiding@dhg.lol:5432/euchre_camp"
      - DATABASE_SHADOW_URL="postgresql://euchre_camp:LINGO5row_hiding@dhg.lol:5432/euchre_camp_shadow"

      # Better Auth Configuration
      - BETTER_AUTH_SECRET=\${BETTER_AUTH_SECRET:-change-this-secret-in-production}
      - BETTER_AUTH_URL=\${BETTER_AUTH_URL:-http://localhost:3000}

      # Application Configuration
      - NODE_ENV=production

      # Trusted Origins for Better Auth
      - TRUSTED_ORIGINS=\${TRUSTED_ORIGINS:-http://localhost:3000,http://127.0.0.1:3000}

      # Version tracking
      - IMAGE_VERSION=${imageTag}

    volumes:
      # Persist uploaded files and static content
      - /DATA/AppData/euchre-camp/config:/app/public/uploads

    restart: unless-stopped

    networks:
      - euchre-network

volumes:
  euchre_camp_app_data:
    driver: local

networks:
  euchre-network:
    driver: bridge
`;
}

// Generate docker-compose.yml (production with PostgreSQL)
function generateDockerComposeYml(imageTag) {
  return `# Production Docker Compose Configuration
# Usage: docker-compose up -d

services:
  app:
    image: ${REGISTRY}/${IMAGE_NAME}:${imageTag}
    container_name: euchre-camp-app
    ports:
      - "3000:3000"
    environment:
      # Database Configuration
      - DATABASE_PROVIDER=postgresql
      - DATABASE_URL=postgresql://euchre_camp:password@db:5432/euchre_camp
      - DATABASE_SHADOW_URL=postgresql://euchre_camp:password@db:5432/euchre_camp_shadow

      # Better Auth Configuration
      - BETTER_AUTH_SECRET=\${BETTER_AUTH_SECRET:-change-this-secret-in-production}
      - BETTER_AUTH_URL=\${BETTER_AUTH_URL:-http://localhost:3000}

      # Application Configuration
      - NODE_ENV=production

      # Trusted Origins for Better Auth
      - TRUSTED_ORIGINS=\${TRUSTED_ORIGINS:-http://localhost:3000,http://127.0.0.1:3000}

      # Version tracking
      - IMAGE_VERSION=${imageTag}

    depends_on:
      - db

    restart: unless-stopped

    networks:
      - euchre-network

  db:
    image: postgres:15-alpine
    container_name: euchre-camp-db
    ports:
      - "5432:5432"
    environment:
      - POSTGRES_DB=euchre_camp
      - POSTGRES_USER=euchre_camp
      - POSTGRES_PASSWORD=password
    volumes:
      - euchre_camp_db_data:/var/lib/postgresql/data
      - ./scripts/init-postgres.sh:/docker-entrypoint-initdb.d/init-postgres.sh
    restart: unless-stopped
    networks:
      - euchre-network

volumes:
  euchre_camp_db_data:
    driver: local

networks:
  euchre-network:
    driver: bridge
`;
}

// Generate docker-compose.dev.yml (development with hot reload)
function generateDockerComposeDevYml(imageTag) {
  return `# Development Docker Compose Configuration
# Usage: docker-compose -f docker-compose.dev.yml up -d

services:
  app:
    build:
      context: .
      target: builder
      args:
        GIT_COMMIT: \${GIT_COMMIT:-dev}
    container_name: euchre-camp-dev
    ports:
      - "3000:3000"
    environment:
      # Database Configuration
      - DATABASE_PROVIDER=postgresql
      - DATABASE_URL=postgresql://euchre_camp:password@db:5432/euchre_camp
      - DATABASE_SHADOW_URL=postgresql://euchre_camp:password@db:5432/euchre_camp_shadow

      # Better Auth Configuration
      - BETTER_AUTH_SECRET=\${BETTER_AUTH_SECRET:-dev-secret-change-in-production}
      - BETTER_AUTH_URL=\${BETTER_AUTH_URL:-http://localhost:3000}

      # Application Configuration
      - NODE_ENV=development

      # Trusted Origins for Better Auth
      - TRUSTED_ORIGINS=\${TRUSTED_ORIGINS:-http://localhost:3000,http://127.0.0.1:3000}

      # Version tracking
      - IMAGE_VERSION=${imageTag}-dev

    volumes:
      # Mount source code for hot reload
      - .:/app
      - /app/node_modules
      - /app/.next

    depends_on:
      - db

    restart: unless-stopped

    networks:
      - euchre-network

  db:
    image: postgres:15-alpine
    container_name: euchre-camp-db-dev
    ports:
      - "5433:5432"  # Different port to avoid conflicts
    environment:
      - POSTGRES_DB=euchre_camp
      - POSTGRES_USER=euchre_camp
      - POSTGRES_PASSWORD=password
    volumes:
      - euchre_camp_db_data_dev:/var/lib/postgresql/data
      - ./scripts/init-postgres.sh:/docker-entrypoint-initdb.d/init-postgres.sh
    restart: unless-stopped
    networks:
      - euchre-network

volumes:
  euchre_camp_db_data_dev:
    driver: local

networks:
  euchre-network:
    driver: bridge
`;
}

// Main function
function main() {
  const imageTag = getImageTag();

  console.log('🔧 Generating Docker Compose files...\n');
  console.log(`Registry: ${REGISTRY}`);
  console.log(`Image: ${IMAGE_NAME}`);
  console.log(`Tag: ${imageTag}\n`);

  // Generate casaos configuration
  const casaosContent = generateCasaosYml(imageTag);
  fs.writeFileSync(
    path.join(__dirname, '..', 'docker-compose.casaos.yml'),
    casaosContent
  );
  console.log('✓ Generated docker-compose.casaos.yml');

  // Generate production configuration
  const prodContent = generateDockerComposeYml(imageTag);
  fs.writeFileSync(
    path.join(__dirname, '..', 'docker-compose.yml'),
    prodContent
  );
  console.log('✓ Generated docker-compose.yml');

  // Generate development configuration
  const devContent = generateDockerComposeDevYml(imageTag);
  fs.writeFileSync(
    path.join(__dirname, '..', 'docker-compose.dev.yml'),
    devContent
  );
  console.log('✓ Generated docker-compose.dev.yml');

  console.log('\n✅ Docker Compose files generated successfully');
  console.log('\nNext steps:');
  console.log('  1. Review the generated files');
  console.log('  2. Commit changes to git');
  console.log('  3. Run: docker-compose build');
  console.log('  4. Run: docker-compose push');
}

// Run main function
main();