import { useTranslation } from "react-i18next";
import {
  ToolType,
  useToolOperation,
} from "@app/hooks/tools/shared/useToolOperation";
import { createStandardErrorHandler } from "@app/utils/toolErrorHandler";
import {
  FlattenParameters,
  defaultParameters,
} from "@app/hooks/tools/flatten/useFlattenParameters";

// Static function that can be used by both the hook and automation executor
export const buildFlattenFormData = (
  parameters: FlattenParameters,
  file: File,
): FormData => {
  const formData = new FormData();
  formData.append("fileInput", file);
  formData.append("flattenOnlyForms", parameters.flattenOnlyForms.toString());
  if (parameters.renderDpi != null) {
    formData.append("renderDpi", parameters.renderDpi.toString());
  }
  return formData;
};

// Static configuration object
export const flattenOperationConfig = {
  toolType: ToolType.singleFile,
  buildFormData: buildFlattenFormData,
  operationType: "flatten",
  endpoint: "/api/v1/misc/flatten",
  multiFileEndpoint: false,
  defaultParameters,
} as const;

export const useFlattenOperation = () => {
  const { t } = useTranslation();

  return useToolOperation<FlattenParameters>({
    ...flattenOperationConfig,
    getErrorMessage: createStandardErrorHandler(
      t("flatten.error.failed", "An error occurred while flattening the PDF."),
    ),
  });
};
