import os
import logging

basedir = os.path.abspath(os.path.dirname(__file__))


class Config:
    SECRET_KEY = os.environ.get("SM_SECRET_KEY", "change-me-in-production")
    SQLALCHEMY_DATABASE_URI = os.environ.get(
        "SM_DB_URI", f"sqlite:///{os.path.join(basedir, 'socks_manager.db')}"
    )
    SQLALCHEMY_TRACK_MODIFICATIONS = False

    # 管理后台认证（在 create_app 时读取，确保 env var 生效）
    @staticmethod
    def admin_user():
        return os.environ.get("SM_ADMIN_USER", "admin")

    @staticmethod
    def admin_password():
        return os.environ.get("SM_ADMIN_PASSWORD", "")

    # 健康检测
    HEALTH_CHECK_TIMEOUT = int(os.environ.get("SM_HEALTH_TIMEOUT", "10"))
    HEALTH_CHECK_INTERVAL = int(os.environ.get("SM_HEALTH_INTERVAL", "300"))  # 秒

    LOG_LEVEL = os.environ.get("SM_LOG_LEVEL", "INFO")


def create_app(config_class=Config):
    from flask import Flask

    app = Flask(__name__)
    app.config.from_object(config_class)

    # 日志
    logging.basicConfig(
        level=getattr(logging, app.config["LOG_LEVEL"]),
        format="%(asctime)s [%(levelname)s] %(message)s",
    )

    from extensions import db
    db.init_app(app)

    from models import db as _db
    with app.app_context():
        _db.create_all()

    # Blueprint 注册
    from routes import main
    from routes import api
    from auth import bp as auth_bp

    app.register_blueprint(auth_bp)
    app.register_blueprint(main.bp)
    app.register_blueprint(api.bp, url_prefix="/api")

    return app