import os
from datetime import timedelta


class BaseConfig:
    SECRET_KEY = os.getenv("SECRET_KEY", "dev-secret-key-change-me")
    SQLALCHEMY_TRACK_MODIFICATIONS = False
    SQLALCHEMY_DATABASE_URI = os.getenv(
        "DATABASE_URL",
        "mysql+pymysql://user:password@localhost:3306/api_scheduler",
    )
    SQLALCHEMY_ENGINE_OPTIONS = {
        # 防止长时间空闲导致连接断开
        "pool_pre_ping": True,
        "pool_recycle": 300,
        "pool_timeout": 30,
    }
    REMEMBER_COOKIE_DURATION = timedelta(days=7)
    SCHEDULER_API_ENABLED = False
    # 默认采用中国标准时间，可通过环境变量 APP_TIMEZONE 覆盖
    SCHEDULER_TIMEZONE = os.getenv("APP_TIMEZONE", "Asia/Shanghai")
    ENABLE_SCHEDULER = True


class DevelopmentConfig(BaseConfig):
    DEBUG = True


class ProductionConfig(BaseConfig):
    DEBUG = False