"""
FILE: app/routers/query.py
DESCRIPTION: Klassische Such-Endpunkte (Semantic & Hybrid). Initiiert asynchrones Feedback-Logging und ruft den richtigen Retriever Modus auf
VERSION: 0.2.0
STATUS: Active
DEPENDENCIES: app.models.dto, app.core.retriever, app.services.feedback_service
LAST_ANALYSIS: 2025-12-15
"""

from __future__ import annotations
from fastapi import APIRouter, HTTPException, BackgroundTasks
from app.models.dto import QueryRequest, QueryResponse
from app.core.retriever import hybrid_retrieve, semantic_retrieve
# NEU:
from app.services.feedback_service import log_search

router = APIRouter()

@router.post("", response_model=QueryResponse)
def post_query(req: QueryRequest, background_tasks: BackgroundTasks) -> QueryResponse:
    try:
        if req.mode == "semantic":
            res = semantic_retrieve(req)
        else:
            res = hybrid_retrieve(req)
        
        # WP-04c: Logging im Hintergrund (bremst Antwort nicht)
        background_tasks.add_task(log_search, req, res)
        
        return res
    except ValueError as e:
        raise HTTPException(status_code=400, detail=str(e))
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"query failed: {e}")