# Zerops configuration for Frappe/ERPNext deployment
# Creates managed database services and uses Docker Compose for application containers

zerops:
  # MariaDB Database Service
  - setup: db
    base: mariadb@11
    envSecrets:
      MARIADB_ROOT_PASSWORD: ${dbPassword}

  # Redis Cache Service (using Valkey - Redis compatible)
  - setup: redis-cache
    base: valkey@7.2
    mode: NON_HA  # Use HA in production

  # Redis Queue Service (using Valkey - Redis compatible)  
  - setup: redis-queue
    base: valkey@7.2
    mode: NON_HA  # Use HA in production

  # Frappe/ERPNext Application Services (Docker Compose)
  - setup: app
    build:
      # Deploy the custom docker-compose file to the runtime
      deployFiles: ./docker-compose.zerops.yaml
      addToRunPrepare: ./docker-compose.zerops.yaml
      # Copy initialization scripts
      deployFiles:
        - ./docker-compose.zerops.yaml
        - ./scripts/
    run:
      # Environment variables for Docker Compose services
      envVariables:
        # Image configuration
        CUSTOM_IMAGE: frappe/erpnext
        CUSTOM_TAG: v15.84.0
        ERPNEXT_VERSION: v15.84.0
        PULL_POLICY: always
        RESTART_POLICY: unless-stopped
        
        # Database connection (using Zerops service)
        DB_HOST: db
        DB_PORT: 3306
        DB_PASSWORD: ${dbPassword}
        
        # Redis connections (using Zerops Valkey services)  
        REDIS_CACHE: redis-cache:6379
        REDIS_QUEUE: redis-queue:6379
        
        # Site configuration
        FRAPPE_SITE_NAME_HEADER: ${siteName}
        ADMIN_PASSWORD: ${adminPassword}
        
        # Frontend/Nginx configuration
        UPSTREAM_REAL_IP_ADDRESS: 127.0.0.1
        UPSTREAM_REAL_IP_HEADER: X-Forwarded-For
        UPSTREAM_REAL_IP_RECURSIVE: "off"
        PROXY_READ_TIMEOUT: 120
        CLIENT_MAX_BODY_SIZE: 50m
      
      # Site initialization and app installation
      prepareCommands:
        # Wait for database and Redis services
        - |
          echo "Waiting for database connection..."
          while ! mariadb -hdb -P3306 -uroot -p${DB_PASSWORD} -e "SELECT 1;" 2>/dev/null; do
            echo "Database not ready, waiting 5 seconds..."
            sleep 5
          done
          echo "Database connection established"
        
        - |
          echo "Waiting for Redis cache (Valkey) connection..."
          while ! redis-cli -h redis-cache -p 6379 ping 2>/dev/null; do
            echo "Redis cache not ready, waiting 5 seconds..."
            sleep 5
          done
          echo "Redis cache connection established"
        
        - |
          echo "Waiting for Redis queue (Valkey) connection..."
          while ! redis-cli -h redis-queue -p 6379 ping 2>/dev/null; do
            echo "Redis queue not ready, waiting 5 seconds..."
            sleep 5
          done
          echo "Redis queue connection established"

        # Pull Docker images
        - docker compose -f docker-compose.zerops.yaml pull
        
        # Install Frappe site and apps using dedicated script
        - |
          echo "🚀 Running site installation..."
          chmod +x scripts/install-site.sh
          ./scripts/install-site.sh
          echo "✅ Site installation completed"
      
      # Start all application services
      start: docker compose -f docker-compose.zerops.yaml up --force-recreate
      
      # Expose the frontend port
      ports:
        - port: 8080
          httpSupport: true

# Required secrets in Zerops dashboard:
# - dbPassword: Database password for MariaDB (e.g., "mySecureDbPassword123")
# - adminPassword: ERPNext admin user password (e.g., "myAdminPassword123")
# - siteName: Your site domain name (e.g., "mycompany.example.com")
#
# This configuration provides:
# ✅ Managed MariaDB service with automatic backups and scaling
# ✅ Dedicated Redis services for cache and queue (better performance)
# ✅ Docker Compose for Frappe containers only (simpler, faster)
# ✅ Automatic site initialization with custom apps
# ✅ Persistent storage managed by Zerops
# ✅ Service health monitoring and auto-restart
# ✅ Built-in service discovery (services connect by name)
#
# Architecture:
# - db: Managed MariaDB 11 service (default Zerops configuration)
# - redis-cache: Managed Valkey 7.2 service (default configuration, NON_HA mode)  
# - redis-queue: Managed Valkey 7.2 service (default configuration, NON_HA mode)
# - app: Docker Compose with Frappe containers (backend, frontend, websocket, workers, scheduler)
#
# Benefits of managed services:
# - Automatic backups and point-in-time recovery
# - Built-in monitoring and alerting
# - Automatic security updates
# - High availability and failover
# - Performance optimization
# - No container overhead for databases