"""DB API client using TgBackendInterface."""

from app.interfaces.base import TgBackendInterface
from app.models.auth import LoginRequest, UserResponse
from app.models.settings import UserSettings, UserSettingsUpdate
from app.models.analysis import SessionCreate, SessionResponse, SessionList


class DBApiClient(TgBackendInterface):
    """
    Клиент для DB API сервиса.

    Использует Pydantic схемы для type-safety.
    Методы self.get(), self.post(), self.put(), self.delete() от TgBackendInterface.
    """

    async def login_user(self, request: LoginRequest) -> UserResponse:
        """
        POST {api_prefix}/users/login

        Авторизация пользователя и запись логина.
        """
        return await self.post("/users/login", body=request, response_model=UserResponse)

    async def get_user_settings(self, user_id: str) -> UserSettings:
        """
        GET {api_prefix}/users/{user_id}/settings

        Получить настройки пользователя для всех окружений.
        """
        return await self.get(f"/users/{user_id}/settings", response_model=UserSettings)

    async def update_user_settings(
        self,
        user_id: str,
        settings: UserSettingsUpdate
    ) -> UserSettings:
        """
        PUT {api_prefix}/users/{user_id}/settings

        Обновить настройки пользователя.
        """
        return await self.put(
            f"/users/{user_id}/settings",
            body=settings,
            response_model=UserSettings
        )

    async def save_session(
        self,
        user_id: str,
        session_data: SessionCreate
    ) -> SessionResponse:
        """
        POST {api_prefix}/users/{user_id}/sessions

        Сохранить сессию анализа.
        """
        return await self.post(
            f"/users/{user_id}/sessions",
            body=session_data,
            response_model=SessionResponse
        )

    async def get_sessions(
        self,
        user_id: str,
        environment: str = None,
        limit: int = 50,
        offset: int = 0
    ) -> SessionList:
        """
        GET {api_prefix}/users/{user_id}/sessions

        Получить список сессий пользователя.
        """
        params = {"limit": limit, "offset": offset}
        if environment:
            params["environment"] = environment
        return await self.get(
            f"/users/{user_id}/sessions",
            params=params,
            response_model=SessionList
        )

    async def get_session(self, user_id: str, session_id: str) -> SessionResponse:
        """
        GET {api_prefix}/users/{user_id}/sessions/{session_id}

        Получить конкретную сессию.
        """
        return await self.get(
            f"/users/{user_id}/sessions/{session_id}",
            response_model=SessionResponse
        )

    async def delete_session(self, user_id: str, session_id: str) -> dict:
        """
        DELETE {api_prefix}/users/{user_id}/sessions/{session_id}

        Удалить сессию.
        """
        return await self.delete(f"/users/{user_id}/sessions/{session_id}")