from __future__ import annotations

from fastapi import APIRouter
from fastapi import Depends
from fastapi import Header

from app.api.dependencies import get_auth_service
from app.api.dependencies import require_current_user
from app.models.entities import User
from app.schemas.auth import AuthMeResponse
from app.schemas.auth import LoginRequest
from app.schemas.auth import LoginResponse
from app.schemas.auth import LogoutResponse
from app.schemas.auth import UserSummary
from app.services.auth_service import AuthService

router = APIRouter()


@router.post("/login", response_model=LoginResponse)
async def login(
    payload: LoginRequest,
    service: AuthService = Depends(get_auth_service),
) -> LoginResponse:
    result = await service.login(username=payload.username, password=payload.password)
    return LoginResponse(
        access_token=result.access_token,
        expires_at=result.expires_at,
        user=UserSummary.model_validate(result.user, from_attributes=True),
    )


@router.get("/me", response_model=AuthMeResponse)
async def me(
    current_user: User = Depends(require_current_user),
) -> AuthMeResponse:
    return AuthMeResponse(user=UserSummary.model_validate(current_user, from_attributes=True))


@router.post("/logout", response_model=LogoutResponse)
async def logout(
    authorization: str | None = Header(default=None, alias="Authorization"),
    service: AuthService = Depends(get_auth_service),
) -> LogoutResponse:
    await service.logout(authorization)
    return LogoutResponse()