# ----------------------------------------------------------------------
# API ROUTES
# ----------------------------------------------------------------------
from fastapi import APIRouter, HTTPException
from typing import List, Dict, Any, Union

from src.config import (
    HTTP_OK,
    HTTP_BAD_REQUEST,
    ERROR_INVALID_PAYLOAD,
    ERROR_NO_VALID_URLS
)

# ----------------------------------------------------------------------
# ROUTER SETUP
# ----------------------------------------------------------------------
router = APIRouter(prefix="/api", tags=["processing"])

# ----------------------------------------------------------------------
# ROUTE HANDLERS
# ----------------------------------------------------------------------
@router.get("/status")
async def get_status():
    from src.models.model_loader import MODELS_LOADED, DEVICE
    from src.utils import get_system_info
    
    return {
        "status": "online",
        "models_loaded": MODELS_LOADED,
        "device": DEVICE,
        "system": get_system_info()
    }

@router.post("/process")
async def process_images(payload: Dict[str, Any]):
    if "urls" not in payload:
        raise HTTPException(
            status_code=HTTP_BAD_REQUEST,
            detail=ERROR_INVALID_PAYLOAD
        )
    
    urls = payload.get("urls", [])
    if not urls:
        raise HTTPException(
            status_code=HTTP_BAD_REQUEST,
            detail=ERROR_NO_VALID_URLS
        )
    
    from app import process_images as process_fn
    
    return process_fn(
        urls=urls,
        product_type=payload.get("product_type", "General")
    )