# services/gcp_document_ai_client.py
from google.api_core.client_options import ClientOptions
from google.api_core.exceptions import GoogleAPICallError
from google.cloud import documentai

def process_document_gcp(
    project_id: str,
    location: str,
    processor_id: str,
    file_bytes: bytes,
    mime_type: str,
) -> documentai.Document:
    """
    Procesa el contenido de un documento en bytes usando la API de Google Document AI.
    Esta función ahora solo se encarga de la comunicación con GCP.
    """
    try:
        client_options = ClientOptions(
            api_endpoint=f"{location}-documentai.googleapis.com"
        )
        client = documentai.DocumentProcessorServiceClient(client_options=client_options)

        resource_name = client.processor_path(project_id, location, processor_id)

        raw_document = documentai.RawDocument(
            content=file_bytes, mime_type=mime_type
        )
        request = documentai.ProcessRequest(name=resource_name, raw_document=raw_document)

        result = client.process_document(request=request)
        return result.document

    except GoogleAPICallError as e:
        raise GoogleAPICallError(f"API call failed: {e}") from e
    except Exception as e:
        raise Exception(f"An unexpected error occurred during GCP processing: {e}") from e