version: '3.8'

services:
  # =================================================================
  # PostgreSQL Database Service
  # =================================================================
  postgres:
    image: postgres:16-alpine
    container_name: keepitgoing-db
    restart: unless-stopped
    environment:
      POSTGRES_DB: ${DB_NAME:-keepitgoing}
      POSTGRES_USER: ${DB_USER:-keepitgoing}
      POSTGRES_PASSWORD: ${DB_PASSWORD}
    volumes:
      - db_data:/var/lib/postgresql/data
    networks:
      - backend
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${DB_USER:-keepitgoing}"]
      interval: 10s
      timeout: 5s
      retries: 5
      start_period: 30s

  # =================================================================
  # Redis Service - Message broker for Celery
  # =================================================================
  redis:
    image: redis:7-alpine
    container_name: keepitgoing-redis
    restart: unless-stopped
    command: redis-server --appendonly yes --maxmemory 256mb --maxmemory-policy allkeys-lru
    volumes:
      - redis_data:/data
    networks:
      - backend
    healthcheck:
      test: ["CMD", "redis-cli", "ping"]
      interval: 10s
      timeout: 5s
      retries: 5

  # =================================================================
  # Django/Gunicorn Web Service
  # =================================================================
  web:
    build:
      context: .
      dockerfile: Dockerfile
    container_name: keepitgoing-web
    restart: unless-stopped
    environment:
      # Django Settings
      DJANGO_SETTINGS_MODULE: config.settings.selfhosted
      SECRET_KEY: ${SECRET_KEY}
      DEBUG: ${DEBUG:-False}
      ALLOWED_HOSTS: ${ALLOWED_HOSTS:-localhost}

      # Security
      CSRF_TRUSTED_ORIGINS: ${CSRF_TRUSTED_ORIGINS:-http://localhost:8000}
      CORS_ALLOWED_ORIGINS: ${CORS_ALLOWED_ORIGINS:-http://localhost:8000}

      # Database
      DATABASE_URL: postgresql://${DB_USER:-keepitgoing}:${DB_PASSWORD}@postgres:5432/${DB_NAME:-keepitgoing}

      # Redis/Celery
      REDIS_URL: redis://redis:6379/0

      # Email
      EMAIL_HOST: ${EMAIL_HOST:-}
      EMAIL_PORT: ${EMAIL_PORT:-587}
      EMAIL_HOST_USER: ${EMAIL_HOST_USER:-}
      EMAIL_HOST_PASSWORD: ${EMAIL_HOST_PASSWORD:-}
      EMAIL_USE_TLS: ${EMAIL_USE_TLS:-True}
      DEFAULT_FROM_EMAIL: ${DEFAULT_FROM_EMAIL:-noreply@localhost}

      # Gunicorn
      GUNICORN_WORKERS: ${GUNICORN_WORKERS:-3}
      GUNICORN_TIMEOUT: ${GUNICORN_TIMEOUT:-60}
    volumes:
      - ./media:/app/media
      - static_files:/app/staticfiles
    ports:
      - "${WEB_PORT:-8000}:8000"
    networks:
      - frontend
      - backend
    depends_on:
      postgres:
        condition: service_healthy
      redis:
        condition: service_healthy
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:8000/api/"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 40s

  # =================================================================
  # Celery Worker Service - Background task processor
  # =================================================================
  celery-worker:
    build:
      context: .
      dockerfile: Dockerfile
    container_name: keepitgoing-celery-worker
    restart: unless-stopped
    environment:
      DJANGO_SETTINGS_MODULE: config.settings.selfhosted
      SECRET_KEY: ${SECRET_KEY}
      DATABASE_URL: postgresql://${DB_USER:-keepitgoing}:${DB_PASSWORD}@postgres:5432/${DB_NAME:-keepitgoing}
      REDIS_URL: redis://redis:6379/0
      EMAIL_HOST: ${EMAIL_HOST:-}
      EMAIL_PORT: ${EMAIL_PORT:-587}
      EMAIL_HOST_USER: ${EMAIL_HOST_USER:-}
      EMAIL_HOST_PASSWORD: ${EMAIL_HOST_PASSWORD:-}
      EMAIL_USE_TLS: ${EMAIL_USE_TLS:-True}
      DEFAULT_FROM_EMAIL: ${DEFAULT_FROM_EMAIL:-noreply@localhost}
    networks:
      - backend
    depends_on:
      postgres:
        condition: service_healthy
      redis:
        condition: service_healthy
    command: celery-worker
    healthcheck:
      test: ["CMD-SHELL", "ps aux | grep -v grep | grep 'celery.*worker' || exit 1"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 30s

  # =================================================================
  # Celery Beat Service - Scheduled task scheduler
  # =================================================================
  celery-beat:
    build:
      context: .
      dockerfile: Dockerfile
    container_name: keepitgoing-celery-beat
    restart: unless-stopped
    environment:
      DJANGO_SETTINGS_MODULE: config.settings.selfhosted
      SECRET_KEY: ${SECRET_KEY}
      DATABASE_URL: postgresql://${DB_USER:-keepitgoing}:${DB_PASSWORD}@postgres:5432/${DB_NAME:-keepitgoing}
      REDIS_URL: redis://redis:6379/0
      EMAIL_HOST: ${EMAIL_HOST:-}
      EMAIL_PORT: ${EMAIL_PORT:-587}
      EMAIL_HOST_USER: ${EMAIL_HOST_USER:-}
      EMAIL_HOST_PASSWORD: ${EMAIL_HOST_PASSWORD:-}
      EMAIL_USE_TLS: ${EMAIL_USE_TLS:-True}
      DEFAULT_FROM_EMAIL: ${DEFAULT_FROM_EMAIL:-noreply@localhost}
    networks:
      - backend
    depends_on:
      postgres:
        condition: service_healthy
      redis:
        condition: service_healthy
    command: celery-beat
    healthcheck:
      test: ["CMD-SHELL", "ps aux | grep -v grep | grep 'celery.*beat' || exit 1"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 40s

# =================================================================
# Named Volumes
# =================================================================
volumes:
  db_data:
    name: keepitgoing_db_data
  redis_data:
    name: keepitgoing_redis_data
  static_files:
    name: keepitgoing_static_files

# =================================================================
# Networks
# =================================================================
networks:
  frontend:
    name: keepitgoing_frontend
  backend:
    name: keepitgoing_backend