"""
Model router for Lily LLM API
"""
from fastapi import APIRouter, HTTPException, Form
from typing import Optional
import logging

from ...models.schemas import HealthResponse
from ...services.model_service import load_model_async, get_current_profile, is_model_loaded
from ...models import list_available_models

logger = logging.getLogger(__name__)
router = APIRouter()

@router.post("/load-model")
async def load_model_endpoint(model_id: str):
    """모델 로드 HTTP 엔드포인트"""
    try:
        logger.info(f"📥 HTTP 요청으로 모델 로드 시작: {model_id}")
        await load_model_async(model_id)
        return {"success": True, "message": f"모델 '{model_id}' 로드 완료"}
    except Exception as e:
        logger.error(f"❌ HTTP 모델 로드 실패: {e}")
        return {"success": False, "error": str(e)}

@router.get("/models")
async def list_models():
    """사용 가능한 모델 목록"""
    return {
        "models": list_available_models(),
        "current_model": get_current_profile().get_model_info() if get_current_profile() else None
    }

@router.post("/switch-model")
async def switch_model(model_id: str):
    """모델 변경"""
    try:
        await load_model_async(model_id)
        return {
            "message": f"모델 변경 성공: {model_id}",
            "current_model": get_current_profile().display_name
        }
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"모델 변경 실패: {str(e)}")
    
@router.get("/health", response_model=HealthResponse)
async def health_check():
    """헬스 체크 엔드포인트"""
    available_models = list_available_models()
    
    return HealthResponse(
        status="healthy",
        model_loaded=is_model_loaded(),
        current_model=get_current_profile().display_name if get_current_profile() else "None",
        available_models=available_models
    )