version: '3.8'

# ============================================================================
# Recticel Quality Application - Docker Compose Configuration
# Simplified configuration - most settings are in .env file
# ============================================================================

services:
  # ==========================================================================
  # MariaDB Database Service
  # ==========================================================================
  db:
    image: mariadb:11.3
    container_name: quality-app-db
    restart: unless-stopped
    
    environment:
      MYSQL_ROOT_PASSWORD: ${MYSQL_ROOT_PASSWORD}
      MYSQL_DATABASE: ${DB_NAME}
      MYSQL_USER: ${DB_USER}
      MYSQL_PASSWORD: ${DB_PASSWORD}
      MYSQL_INNODB_BUFFER_POOL_SIZE: ${MYSQL_BUFFER_POOL}
      MYSQL_MAX_CONNECTIONS: ${MYSQL_MAX_CONNECTIONS}
    
    ports:
      - "${DB_PORT}:3306"
    
    volumes:
      - ${DB_DATA_PATH}:/var/lib/mysql
      - ./init-db.sql:/docker-entrypoint-initdb.d/01-init.sql:ro
    
    networks:
      - quality-app-network
    
    healthcheck:
      test: ["CMD", "healthcheck.sh", "--connect", "--innodb_initialized"]
      interval: 10s
      timeout: 5s
      retries: 5
      start_period: 30s
    
    deploy:
      resources:
        limits:
          cpus: ${DB_CPU_LIMIT}
          memory: ${DB_MEMORY_LIMIT}
        reservations:
          cpus: ${DB_CPU_RESERVATION}
          memory: ${DB_MEMORY_RESERVATION}
    
    logging:
      driver: json-file
      options:
        max-size: ${LOG_MAX_SIZE}
        max-file: ${DB_LOG_MAX_FILES}

  # ==========================================================================
  # Flask Web Application Service
  # ==========================================================================
  web:
    build:
      context: .
      dockerfile: Dockerfile
      args:
        BUILD_DATE: ${BUILD_DATE}
        VERSION: ${VERSION}
        VCS_REF: ${VCS_REF}
    
    image: trasabilitate-quality-app:${VERSION}
    container_name: quality-app
    restart: unless-stopped
    
    depends_on:
      db:
        condition: service_healthy
    
    environment:
      # Database connection
      DB_HOST: ${DB_HOST}
      DB_PORT: ${DB_PORT}
      DB_NAME: ${DB_NAME}
      DB_USER: ${DB_USER}
      DB_PASSWORD: ${DB_PASSWORD}
      DB_MAX_RETRIES: ${DB_MAX_RETRIES}
      DB_RETRY_INTERVAL: ${DB_RETRY_INTERVAL}
      
      # Flask settings
      FLASK_ENV: ${FLASK_ENV}
      FLASK_APP: run.py
      SECRET_KEY: ${SECRET_KEY}
      
      # Gunicorn settings
      GUNICORN_WORKERS: ${GUNICORN_WORKERS}
      GUNICORN_WORKER_CLASS: ${GUNICORN_WORKER_CLASS}
      GUNICORN_TIMEOUT: ${GUNICORN_TIMEOUT}
      GUNICORN_BIND: ${GUNICORN_BIND}
      GUNICORN_LOG_LEVEL: ${GUNICORN_LOG_LEVEL}
      GUNICORN_PRELOAD_APP: ${GUNICORN_PRELOAD_APP}
      GUNICORN_MAX_REQUESTS: ${GUNICORN_MAX_REQUESTS}
      
      # Initialization flags
      INIT_DB: ${INIT_DB}
      SEED_DB: ${SEED_DB}
      IGNORE_DB_INIT_ERRORS: ${IGNORE_DB_INIT_ERRORS}
      IGNORE_SEED_ERRORS: ${IGNORE_SEED_ERRORS}
      SKIP_HEALTH_CHECK: ${SKIP_HEALTH_CHECK}
      
      # Localization
      TZ: ${TZ}
      LANG: ${LANG}
      
      # Backup path
      BACKUP_PATH: ${BACKUP_PATH}
    
    ports:
      - "${APP_PORT}:8781"
    
    volumes:
      - ${LOGS_PATH}:/srv/quality_app/logs
      - ${INSTANCE_PATH}:/app/instance
      - ${BACKUP_PATH}:/srv/quality_app/backups
    
    networks:
      - quality-app-network
    
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:8781/"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 60s
    
    deploy:
      resources:
        limits:
          cpus: ${APP_CPU_LIMIT}
          memory: ${APP_MEMORY_LIMIT}
        reservations:
          cpus: ${APP_CPU_RESERVATION}
          memory: ${APP_MEMORY_RESERVATION}
    
    logging:
      driver: json-file
      options:
        max-size: ${LOG_MAX_SIZE}
        max-file: ${LOG_MAX_FILES}
        compress: "true"

# ============================================================================
# Network Configuration
# ============================================================================
networks:
  quality-app-network:
    driver: bridge
    ipam:
      config:
        - subnet: ${NETWORK_SUBNET}

# ============================================================================
# USAGE NOTES
# ============================================================================
# 1. Copy .env.example to .env and customize all values
# 2. Set INIT_DB=true and SEED_DB=true for first deployment only
# 3. Change default passwords and SECRET_KEY in production
# 4. Ensure all volume paths exist with proper permissions:
#    mkdir -p /srv/quality_app/{mariadb,logs,backups}
# 5. Start: docker-compose up -d
# 6. Stop: docker-compose down
# 7. Logs: docker-compose logs -f web
# 8. Rebuild: docker-compose up -d --build
# ============================================================================