"""
卖相AI - Flask 后端
按功能拆分为蓝图：认证(auth)、主页面(main)、管理员(admin)、图片(image)、品牌(brand)
"""
import os
import logging
from datetime import datetime
from logging.handlers import RotatingFileHandler

from flask import Flask
from flask_cors import CORS

from app_common import init_db, BASE_DIR
from blueprints.auth import auth_bp
from blueprints.main import main_bp
from blueprints.admin import admin_bp
from blueprints.image import image_bp
from blueprints.brand import brand_bp
from blueprints.communication import communication_bp

from config import cache_path, debug


def setup_flask_logging(app):
    """配置Flask访问日志，输出到独立的日志文件"""
    
    api_cache_path = os.path.join(cache_path, "api_logs")
    os.makedirs(api_cache_path, exist_ok=True)

    # 只在非debug模式下配置文件日志
    if not debug:
        # 获取当前日期作为日志文件名的一部分
        today = datetime.now().strftime("%Y_%m_%d")
        log_file = os.path.join(api_cache_path, f'api_{today}.log')
        
        # 创建文件处理器，使用RotatingFileHandler避免日志文件过大
        file_handler = RotatingFileHandler(
            log_file,
            maxBytes=10 * 1024 * 1024,  # 10MB
            backupCount=5,
            encoding='utf-8'
        )
        
        # 设置日志格式
        formatter = logging.Formatter(
            '[%(asctime)s] %(levelname)s in %(module)s: %(message)s',
            datefmt='%Y-%m-%d %H:%M:%S'
        )
        file_handler.setFormatter(formatter)
        file_handler.setLevel(logging.INFO)
        
        # 配置Flask应用日志
        app.logger.addHandler(file_handler)
        app.logger.setLevel(logging.INFO)
        
        # 配置Werkzeug日志（HTTP访问日志）
        werkzeug_logger = logging.getLogger('werkzeug')
        werkzeug_logger.addHandler(file_handler)
        werkzeug_logger.setLevel(logging.INFO)
        
        print(f"API 日志已配置，输出到: {log_file}")
    else:
        print("Debug模式下，API 日志输出到控制台")


def create_app():
    app = Flask(__name__, template_folder=BASE_DIR, static_folder=BASE_DIR)
    frontend_origin = os.environ.get('FRONTEND_ORIGIN', '*')
    cors_origins = frontend_origin if frontend_origin != '*' else '*'
    CORS(
        app,
        supports_credentials=True,
        resources={r"/api/*": {"origins": cors_origins}, r"/login": {"origins": cors_origins}},
    )

    # 注册蓝图（不设 url_prefix，保持原有 URL 路径不变，前端无需改动）
    app.register_blueprint(auth_bp)
    app.register_blueprint(main_bp)
    app.register_blueprint(admin_bp)
    app.register_blueprint(image_bp)
    app.register_blueprint(brand_bp)
    app.register_blueprint(communication_bp)
    
    # 配置Flask访问日志
    setup_flask_logging(app)

    return app


app = create_app()


def run_app(host='127.0.0.1', port=5123):
    # init_db()
    app.run(host=host, port=port, threaded=True, use_reloader=False)


if __name__ == '__main__':
    run_app()