"""应用配置，通过环境变量注入，不支持 .env 文件"""

from pydantic_settings import BaseSettings
from typing import Optional


class Settings(BaseSettings):
    # ---------- 数据库 ----------
    DATABASE_URL: str = "sqlite+aiosqlite:///./pingwatch.db"
    # PostgreSQL: "postgresql+asyncpg://user:pass@localhost/pingwatch"

    # ---------- 企业微信 ----------
    WECOM_CORP_ID: str = ""
    WECOM_AGENT_ID: int = 0
    WECOM_APP_SECRET: str = ""

    # ---------- Casdoor ----------
    CASDOOR_ENDPOINT: str = "https://casdoor.dhdx.fun"
    CASDOOR_CLIENT_ID: str = ""
    CASDOOR_CLIENT_SECRET: str = ""
    CASDOOR_CERTIFICATE: str = ""               # 可选，用于验证 id_token 签名
    CASDOOR_ORGANIZATION: str = "dahua"
    CASDOOR_APPLICATION: str = "PingWatch"
    CASDOOR_REDIRECT_URI: str = "http://10.10.10.7:5173/login"  # 前端回调地址

    # ---------- Ping 引擎 ----------
    PING_INTERVAL_SECONDS: int = 30
    PING_TIMEOUT_SECONDS: float = 5.0
    DEFAULT_ALERT_THRESHOLD: int = 5
    PING_CONCURRENCY: int = 50
    FPING_PATH: str = "/usr/bin/fping"

    # ---------- 上游心跳 ----------
    UPSTREAM_PING_TARGET: str = "114.114.114.114"
    UPSTREAM_PING_THRESHOLD: int = 2
    OFFLINE_SUPPRESS_RATIO: float = 0.9

    # ---------- 数据保留 ----------
    PING_RECORD_RETENTION_DAYS: int = 90
    ALERT_RETENTION_DAYS: int = 365

    # ---------- JWT ----------
    SECRET_KEY: str = "change-me-to-a-long-random-string"
    ACCESS_TOKEN_EXPIRE_MINUTES: int = 480

    # ---------- LogHive ----------
    LOGHIVE_ENDPOINT: str = "http://10.10.10.14:8000"
    LOGHIVE_PROJECT: str = "PingWatch"
    LOGHIVE_API_KEY: str = ""

    # ---------- CORS ----------
    CORS_ORIGINS: str = "http://localhost:5173,http://10.10.10.7:5173,http://10.10.10.7"

    model_config = {"env_file": ".env", "env_file_encoding": "utf-8"}


settings = Settings()