version: '3.8'
services:
  db:
    image: postgres:15-alpine
    environment:
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: password
      POSTGRES_DB: explorer_dev
    ports:
      - "5432:5432"
    volumes:
      - postgres_data:/var/lib/postgresql/data

  backend:
    build:
      context: ./backend
      dockerfile: Dockerfile # Assuming I create one or use default
    ports:
      - "4000:4000"
    depends_on:
      - db
    environment:
      DATABASE_URL: ecto://postgres:password@db/explorer_dev
      SECRET_KEY_BASE: "super_secret_key_base_change_me_in_prod"

  frontend:
    build:
      context: ./frontend
      dockerfile: Dockerfile # Next.js usually needs one
    ports:
      - "3000:3000"
    volumes:
      - ./frontend:/app
      - /app/node_modules

volumes:
  postgres_data: