version: "3.9"

# ─────────────────────────────────────────────────────────────────────────────
#  PMDI – Pay My Damn Invoice
#  Multi-container Docker Compose orchestration
# ─────────────────────────────────────────────────────────────────────────────

services:

  # ── PostgreSQL 15 ──────────────────────────────────────────────────────────
  db:
    image: postgres:15-alpine
    container_name: pmdi_db
    restart: unless-stopped
    environment:
      POSTGRES_DB:       ${POSTGRES_DB:-pmdi}
      POSTGRES_USER:     ${POSTGRES_USER:-pmdi}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-changeme}
    volumes:
      - postgres_data:/var/lib/postgresql/data
    networks:
      - pmdi_net
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-pmdi} -d ${POSTGRES_DB:-pmdi}"]
      interval: 10s
      timeout: 5s
      retries: 5
      start_period: 15s

  # ── FastAPI Backend ────────────────────────────────────────────────────────
  backend:
    build:
      context: ./backend
      dockerfile: Dockerfile
    container_name: pmdi_backend
    restart: unless-stopped
    env_file:
      - .env
    environment:
      # Override DATABASE_URL so it always points to the db container
      DATABASE_URL: postgresql://${POSTGRES_USER:-pmdi}:${POSTGRES_PASSWORD:-changeme}@db:5432/${POSTGRES_DB:-pmdi}
    depends_on:
      db:
        condition: service_healthy
    ports:
      - "8000:8000"
    networks:
      - pmdi_net

  # ── Vue 3 Frontend ─────────────────────────────────────────────────────────
  frontend:
    build:
      context: ./frontend
      dockerfile: Dockerfile
    container_name: pmdi_frontend
    restart: unless-stopped
    environment:
      # Vite dev-server proxy target (must resolve inside the Docker network)
      VITE_API_TARGET: http://backend:8000
    ports:
      - "3000:3000"
    networks:
      - pmdi_net
    depends_on:
      - backend

  # ─── Optional: Postfix Mail Relay ─────────────────────────────────────────
  # Uncomment the block below to start an in-network mail relay (Mode B).
  # Then add  MAIL_RELAY_HOST=postfix  to your .env file so the backend
  # routes outbound mail through this container.
  #
  # postfix:
  #   image: boky/postfix:latest
  #   container_name: pmdi_postfix
  #   restart: unless-stopped
  #   environment:
  #     ALLOWED_SENDER_DOMAINS: "${MAIL_SENDER_DOMAIN:-example.com}"
  #     # Optional: forward to an upstream relay (e.g. Gmail SMTP)
  #     # RELAYHOST:          "[smtp.gmail.com]:587"
  #     # RELAYHOST_USERNAME: "user@gmail.com"
  #     # RELAYHOST_PASSWORD: "app-password"
  #   networks:
  #     - pmdi_net
  # ──────────────────────────────────────────────────────────────────────────

# ── Volumes ────────────────────────────────────────────────────────────────
volumes:
  postgres_data:
    driver: local

# ── Networks ───────────────────────────────────────────────────────────────
networks:
  pmdi_net:
    driver: bridge