name: gravity

services:
  # Production — builds the static bundle and serves it with nginx.
  app:
    build:
      context: .
      target: runner
    image: ${IMAGE_NAME:-gravity}:${IMAGE_TAG:-latest}
    ports:
      - "${APP_PORT:-8080}:80"
    restart: ${RESTART_POLICY:-unless-stopped}
    healthcheck:
      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost/"]
      interval: ${HEALTHCHECK_INTERVAL:-30s}
      timeout: ${HEALTHCHECK_TIMEOUT:-5s}
      retries: ${HEALTHCHECK_RETRIES:-3}
      start_period: ${HEALTHCHECK_START_PERIOD:-10s}

  # Development — Vite HMR dev server with source mounted from the host.
  # Usage: docker compose --profile dev up dev
  dev:
    image: node:${NODE_VERSION:-20-alpine}
    working_dir: /app
    volumes:
      - .:/app
      - node_modules:/app/node_modules
    ports:
      - "${DEV_PORT:-5173}:5173"
    # --host binds Vite to 0.0.0.0 so the port is reachable outside the container.
    command: sh -c "npm install && npm run dev -- --host"
    profiles:
      - dev

volumes:
  node_modules: