from flask import Flask
from config import Config
from app.extensions import db, migrate, cors

def create_app():
    app = Flask(__name__)
    app.config.from_object(Config)

    # 初始化插件
    db.init_app(app)
    migrate.init_app(app, db)
    # 确保跨域配置正确，允许前端访问
    cors.init_app(app, resources={r"/api/*": {"origins": "*"}})

    # --- 注册蓝图 ---

    # 1. 保持原有的 stocks 模块
    try:
        from app.api.v1.stocks import stocks_bp
        app.register_blueprint(stocks_bp, url_prefix='/api/v1/stocks')
    except ImportError as e:
        print(f"⚠️ 警告: 原有 stocks 蓝图导入失败: {e}")

    # 2. 注册新的入库聚合蓝图
    # 核心：必须先导入，再注册。路径对应 app/api/v1/inbound/__init__.py
    try:
        from app.api.v1.inbound import inbound_bp
        # 最终路径结构：/api/v1/inbound/buy/list
        app.register_blueprint(inbound_bp, url_prefix='/api/v1/inbound')
        print("✅ 入库模块蓝图注册成功")
    except ImportError as e:
        print(f"❌ 严重错误: 入库模块 inbound 蓝图导入失败: {e}")

    # 打印路由映射，仅在本地调试时建议开启
    # with app.app_context():
    #    print(app.url_map)

    return app