from pathlib import Path

from pydantic_settings import BaseSettings, SettingsConfigDict


BASE_DIR = Path(__file__).resolve().parents[2]


class Settings(BaseSettings):
    app_name: str = "电气量测控平台"
    app_version: str = "0.1.0"
    api_prefix: str = "/api"
    realtime_ws_path: str = "/ws/real-time"
    alarm_ws_path: str = "/ws/alarm"
    poll_interval_seconds: float = 0.5
    auth_password: str = "admin123"
    use_mock_device: bool = True
    config_dir: Path = BASE_DIR / "config"
    data_dir: Path = BASE_DIR / "data"
    alarm_db_path: Path = BASE_DIR / "data" / "alarm.db"
    backup_dir: Path = BASE_DIR / "data" / "backups"

    model_config = SettingsConfigDict(
        env_prefix="EMCP_",
        env_file=".env",
        env_file_encoding="utf-8",
        extra="ignore",
    )


settings = Settings()