from fastapi import APIRouter, HTTPException, status

from app.api.deps import LecteurDep, RecommendationServiceDep
from app.api.openapi import REPONSE_VALIDATION, Reponses
from app.schemas.errors import ErrorResponse
from app.schemas.recommendation import RecommendationResponse
from app.services.recommendation import RecommendationNotFoundError

router = APIRouter()

REPONSES_INTROUVABLE: Reponses = {
    **REPONSE_VALIDATION,
    404: {"model": ErrorResponse, "description": "Aucune recommandation ne porte cet identifiant."},
}


@router.get("", response_model=list[RecommendationResponse], summary="Liste les recommandations")
async def list_recommendations(
    _: LecteurDep, service: RecommendationServiceDep
) -> list[RecommendationResponse]:
    recommendations = await service.list_all()
    return [RecommendationResponse.model_validate(r) for r in recommendations]


@router.get(
    "/{recommendation_id}",
    response_model=RecommendationResponse,
    summary="Décrit une recommandation",
    responses=REPONSES_INTROUVABLE,
)
async def get_recommendation(
    recommendation_id: int, _: LecteurDep, service: RecommendationServiceDep
) -> RecommendationResponse:
    try:
        recommendation = await service.get_by_id(recommendation_id)
    except RecommendationNotFoundError as erreur:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND, detail="Recommandation introuvable"
        ) from erreur
    return RecommendationResponse.model_validate(recommendation)