from collections.abc import Iterable

from sqlalchemy import select
from sqlalchemy.orm import Session

from app.models.system_setting import SystemSetting


class SystemSettingsRepository:
    @staticmethod
    def get(db: Session, key: str) -> SystemSetting | None:
        return db.scalar(select(SystemSetting).where(SystemSetting.key == key))

    @staticmethod
    def get_many(db: Session, keys: Iterable[str]) -> dict[str, SystemSetting]:
        key_list = list(keys)
        if not key_list:
            return {}

        settings = db.scalars(select(SystemSetting).where(SystemSetting.key.in_(key_list))).all()
        return {setting.key: setting for setting in settings}

    @staticmethod
    def upsert(db: Session, *, key: str, value: str, is_secret: bool = False) -> SystemSetting:
        setting = SystemSettingsRepository.get(db, key)
        if setting is None:
            setting = SystemSetting(key=key, value=value, is_secret=is_secret)
            db.add(setting)
            db.flush()
            return setting

        setting.value = value
        setting.is_secret = is_secret
        db.flush()
        return setting