import os
from datetime import timedelta
from dotenv import load_dotenv

# 加载 .env 文件中的环境变量
load_dotenv()

class Config:
    # 数据库配置
    SQLALCHEMY_DATABASE_URI = os.getenv(
        'DATABASE_URL', 
        'mysql+pymysql://root:your_password@localhost:3306/pt_manager'
    )
    SQLALCHEMY_TRACK_MODIFICATIONS = False
    SQLALCHEMY_ECHO = True  # 开发时显示SQL语句
    
    # Flask密钥
    SECRET_KEY = os.getenv('SECRET_KEY', 'dev-secret-key-change-this')
    
    # JWT配置
    JWT_SECRET_KEY = os.getenv('JWT_SECRET_KEY', 'dev-secret-key-change-this')
    JWT_ACCESS_TOKEN_EXPIRES = timedelta(hours=24)
    JWT_TOKEN_LOCATION = ['headers']
    JWT_HEADER_NAME = 'Authorization'
    JWT_HEADER_TYPE = 'Bearer'

    # 禁用CSRF保护（仅使用headers中的Bearer token）
    JWT_COOKIE_CSRF_PROTECT = False

    # 添加这些配置
    JWT_ERROR_MESSAGE_KEY = 'error'
    PROPAGATE_EXCEPTIONS = True