services:
  postgres:
    image: postgres:latest
    restart: unless-stopped
    environment:
      POSTGRES_USER: ${POSTGRES_USER}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
      POSTGRES_DB: ${POSTGRES_DB}
    volumes:
      # PostgreSQL 18+ images store data in a version-specific subdirectory
      # under /var/lib/postgresql (pg_ctlcluster-style layout) rather than
      # directly at /var/lib/postgresql/data; mounting the old path makes
      # the container refuse to start.
      - fantastick-postgres-data:/var/lib/postgresql
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER} -d ${POSTGRES_DB}"]
      interval: 5s
      timeout: 5s
      retries: 10
      start_period: 15s

  # One-shot job that applies Prisma migrations before app/queue-worker start.
  # Safe to run on every `docker compose up`; `prisma migrate deploy` is a no-op
  # if there is nothing new to apply.
  migrate:
    build:
      context: .
      target: build
    command: ["pnpm", "exec", "prisma", "migrate", "deploy"]
    restart: "no"
    depends_on:
      postgres:
        condition: service_healthy
    env_file: .env
    environment:
      DATABASE_URL: postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@postgres:5432/${POSTGRES_DB}?schema=public

  app:
    # Pre-built by CI on every release; `docker compose pull app queue-worker`
    # fetches it instead of building locally. `build:` is still here so
    # `docker compose build` (or `up --build`) works from source too.
    image: ghcr.io/wentthefox/fantastick:latest
    build:
      context: .
      target: runtime
    restart: unless-stopped
    depends_on:
      postgres:
        condition: service_healthy
      migrate:
        condition: service_completed_successfully
    env_file: .env
    environment:
      DATABASE_URL: postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@postgres:5432/${POSTGRES_DB}?schema=public
    volumes:
      - fantastick-sticker-storage:/app/fs

  queue-worker:
    image: ghcr.io/wentthefox/fantastick:latest
    build:
      context: .
      target: runtime
    command: ["node", "--enable-source-maps", "build/src/queue-worker.js"]
    restart: unless-stopped
    depends_on:
      postgres:
        condition: service_healthy
      migrate:
        condition: service_completed_successfully
    env_file: .env
    environment:
      DATABASE_URL: postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@postgres:5432/${POSTGRES_DB}?schema=public
    volumes:
      - fantastick-sticker-storage:/app/fs

volumes:
  fantastick-postgres-data:
  # Shared between app and queue-worker: sticker files uploaded via Discord
  # are written by app and read by queue-worker when re-rendering galleries.
  fantastick-sticker-storage: