from typing import Any, Dict, Optional

from fastapi import APIRouter, HTTPException
from pydantic import BaseModel, Field

from app.db.supabase import SupabaseConfigError
from app.services.recommendation_service import recommend_pois


router = APIRouter(prefix="/chat", tags=["Chat"])


class RecommendRequest(BaseModel):
    query: str = Field(..., min_length=1)
    location: Optional[Dict[str, Any]] = None


@router.post("/recommend")
def recommend(payload: RecommendRequest):
    try:
        return recommend_pois(payload.query, payload.location)
    except SupabaseConfigError as exc:
        raise HTTPException(status_code=500, detail=str(exc)) from exc
    except Exception as exc:
        raise HTTPException(status_code=500, detail=f"Recommendation failed: {exc}") from exc