from pydantic_settings import BaseSettings
from typing import Optional


class Settings(BaseSettings):
    # 应用配置
    APP_NAME: str = "IPAM Management System"
    APP_VERSION: str = "0.1.0"
    DEBUG: bool = True

    # 数据库配置
    DATABASE_URL: str = "mysql+pymysql://ipam:***@localhost:3308/ipam"

    # Redis配置
    REDIS_URL: str = "redis://localhost:6379/0"

    # Celery配置
    CELERY_BROKER_URL: str = "redis://localhost:6379/1"
    CELERY_RESULT_BACKEND: str = "redis://localhost:6379/2"

    # JWT配置
    SECRET_KEY: str = "your-super-secret-key-here-change-in-production"
    ALGORITHM: str = "HS256"
    ACCESS_TOKEN_EXPIRE_MINUTES: int = 60 * 24 * 7

    # 扫描配置
    PING_TIMEOUT: int = 2
    PING_RETRIES: int = 2
    SCAN_CONCURRENCY: int = 50

    # 飞书机器人告警通知配置
    FEISHU_ENABLED: bool = False          # 总开关
    FEISHU_WEBHOOK_URL: str = ""          # 飞书自定义机器人 webhook 地址
    FEISHU_SECRET: str = ""               # 可选：机器人签名校验密钥（开启签名校验时必填）
    FEISHU_MIN_SEVERITY: str = "warning"  # 最低告警级别：info/warning/error/critical，仅推送 >= 该级别
    FEISHU_ALERT_TYPES: str = ""          # 可选：逗号分隔的告警类型白名单，空=全部推送

    class Config:
        env_file = ".env"


settings = Settings()