# api/routers/invoices.py
from fastapi import APIRouter, Depends, UploadFile, File, HTTPException
from typing import Dict

from api.dependencies import get_current_active_user
from services import invoice_processor_service
from core.config import settings
from db.models import User

router = APIRouter()

@router.post("/upload", response_model=Dict[str, str])
async def upload_invoice(
    file: UploadFile = File(...),
    current_user: User = Depends(get_current_active_user)
):
    """
    Endpoint para subir una factura, procesarla y devolver los datos extraídos.
    Requiere autenticación.
    """
    if not file.content_type in ["application/pdf", "image/jpeg", "image/png"]:
        raise HTTPException(status_code=400, detail="Tipo de archivo no soportado.")

    try:
        file_bytes = await file.read()
        extracted_data = invoice_processor_service.process_invoice_from_bytes(
            project_id=settings.GCP_PROJECT_ID,
            location=settings.GCP_LOCATION,
            processor_id=settings.DOCAI_PROCESSOR_ID,
            file_bytes=file_bytes,
            mime_type=file.content_type
        )
        return extracted_data
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"Error al procesar la factura: {e}")