version: '3.8'

services:
  backend:
    build:
      context: .
      dockerfile: backend/Dockerfile
    ports:
      - "8080:8080"
    environment:
      - PORT=8080
      - USE_DOCKER=1
      - SANDBOX_IMAGE=bux-playground-sandbox
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    depends_on:
      - sandbox
    restart: unless-stopped

  # Sandbox image is built separately and used by backend
  sandbox:
    build:
      context: ..
      dockerfile: playground/sandbox/Dockerfile
    image: bux-playground-sandbox
    # This container is not run directly — backend spawns it per-request
    command: ["echo", "sandbox image ready"]