version: '3.8' # Use a recent version

services:
  # Your Rust Application Service
  app:
    build: . # Tells docker-compose to build the Dockerfile in the current directory
    container_name: icarus_auth # Optional: Give the container a specific name
    ports:
      # Map host port 8000 to container port 3000 (adjust as needed)
      # Format: "HOST_PORT:CONTAINER_PORT"
      - "8000:3000"
    environment:
      # Pass environment variables to your Rust application
      # RUST_LOG: info # Example: Set log level
      # IMPORTANT: Configure DATABASE_URL to connect to the 'db' service
      # The hostname 'db' matches the service name defined below.
      DATABASE_URL: postgresql://icarus_op:password@db:5432/icarus_auth
      # Add any other environment variables your app needs
      # APP_HOST: 0.0.0.0
      # APP_PORT: 3000
    depends_on:
      db:
        condition: service_healthy # Wait for the DB to be healthy before starting the app
    restart: unless-stopped # Optional: Restart policy

  # PostgreSQL Database Service
  db:
    image: postgres:17-alpine # Use an official Postgres image (Alpine variant is smaller)
    container_name: icarus_auth_db # Optional: Give the container a specific name
    environment:
      # These MUST match the user, password, and database name in the DATABASE_URL above
      POSTGRES_USER: icarus_op
      POSTGRES_PASSWORD: password
      POSTGRES_DB: icarus_auth
    volumes:
      # Persist database data using a named volume
      - postgres_data:/var/lib/postgresql/data
    ports: []
      # Optional: Expose port 5432 ONLY if you need to connect directly from your host machine (e.g., for debugging)
      # - "5432:5432"
      # pass:
    healthcheck:
        # Checks if Postgres is ready to accept connections
        test: ["CMD-SHELL", "pg_isready -U $$POSTGRES_USER -d $$POSTGRES_DB"]
        interval: 10s
        timeout: 5s
        retries: 5
        start_period: 10s
    restart: always # Optional: Restart policy

# Define the named volume for data persistence
volumes:
  postgres_data:
    driver: local # Use the default local driver