services:
  busbar-designer:
    build: .
    image: busbar-designer:latest
    container_name: busbar-designer
    restart: unless-stopped
    ports:
      - "5000:5000"             # change to "8000:5000" if 5000 is taken
    environment:
      - HOST=0.0.0.0
      - PORT=5000
      - FLASK_DEBUG=0
      - BUSBAR_DB=/app/data/busbar.db
      - SNAPSHOT_RETENTION=20    # max history versions kept per project
    volumes:
      - ./data:/app/data         # SQLite DB lives here; back it up by copying this folder
    healthcheck:
      test: ["CMD", "python", "-c",
             "import urllib.request,sys; sys.exit(0 if urllib.request.urlopen('http://localhost:5000/api/health', timeout=3).status==200 else 1)"]
      interval: 30s
      timeout: 5s
      retries: 3
      start_period: 30s