# Development stack — one command: `docker compose up --build`
#   SPA:    http://localhost:5173   (Vite dev server, HMR)
#   API:    http://localhost:8000/api/
#   Admin:  http://localhost:8000/admin/
services:
  db:
    image: postgres:16-alpine
    environment:
      POSTGRES_DB: ${POSTGRES_DB:-timeline}
      POSTGRES_USER: ${POSTGRES_USER:-timeline}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-timeline}
    volumes:
      - pgdata:/var/lib/postgresql/data
    ports:
      # Host port is overridable to avoid clashing with a local Postgres on 5432.
      - "${POSTGRES_HOST_PORT:-5433}:5432"
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-timeline} -d ${POSTGRES_DB:-timeline}"]
      interval: 5s
      timeout: 3s
      retries: 10

  backend:
    build:
      context: ./backend
    command: ["python", "manage.py", "runserver", "0.0.0.0:8000"]
    environment:
      RUN_COLLECTSTATIC: "0"
      POSTGRES_HOST: db
      # Dev defaults so `docker compose up` works with no .env; a .env overrides them.
      DATABASE_URL: ${DATABASE_URL:-postgres://timeline:timeline@db:5432/timeline}
      DJANGO_DEBUG: ${DJANGO_DEBUG:-1}
      DJANGO_ALLOWED_HOSTS: ${DJANGO_ALLOWED_HOSTS:-localhost,127.0.0.1,backend}
      # SEED_DEMO=1 loads demo users + sample projects on first start (see README).
      SEED_DEMO: ${SEED_DEMO:-0}
    env_file:
      # Optional: dev defaults work with no .env at all (see .env.example).
      - path: .env
        required: false
    volumes:
      - ./backend:/app
    ports:
      - "8000:8000"
    depends_on:
      db:
        condition: service_healthy

  frontend:
    build:
      context: ./frontend
      target: dev
    environment:
      VITE_PROXY_TARGET: http://backend:8000
      CHOKIDAR_USEPOLLING: "true"
    volumes:
      - ./frontend:/app
      - /app/node_modules
    ports:
      - "5173:5173"
    depends_on:
      - backend

volumes:
  pgdata: