// Licensed to Cloudera, Inc. under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  Cloudera, Inc. licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

import { type ColumnProps } from 'cuix/dist/components/Table';
import {
  ImporterFileSource,
  FilePreviewTableColumn,
  ImporterTableData,
  FilePreviewResponse,
  FileMetaData
} from '../types';
import { getLastDirOrFileNameFromPath } from '../../../reactComponents/PathBrowser/PathBrowser.util';
import { toCamelCase } from '../../../utils/string/changeCasing';

export const convertToAntdColumns = (
  input?: FilePreviewTableColumn[]
): ColumnProps<ImporterTableData>[] => {
  if (!input) {
    return [];
  }
  return input?.map(item => ({
    title: item.name,
    dataIndex: toCamelCase(item.name),
    key: item.name,
    width: '100px'
  }));
};

export const convertToDataSource = (
  inputData: FilePreviewResponse['previewData']
): ImporterTableData[] => {
  const maxLength = Math.max(...Object.values(inputData).map(arr => arr.length));

  const data = Array.from({ length: maxLength }, (_, index) => {
    const row: ImporterTableData = {
      importerDataKey: `importer-row__${index}`
    };
    Object.keys(inputData).forEach(key => {
      row[toCamelCase(key)] = inputData[key][index] ?? null;
    });
    return row;
  });

  return data;
};

const sanitizeTableName = (name: string): string => {
  return name
    .replace(/[^a-zA-Z0-9]/g, '_') // replace non-alphanumeric characters with underscores
    .replace(/_+/g, '_') // replace multiple underscores with a single underscore
    .replace(/^_+|_+$/g, ''); // remove leading and trailing underscores
};

const getLastDirOrFileNameWithoutExtension = (fileName: string): string => {
  return fileName.split('.').length > 1 ? fileName.split('.').slice(0, -1).join('.') : fileName;
};

export const getDefaultTableName = (fileMetaData: FileMetaData): string => {
  const rawFileName =
    fileMetaData.source === ImporterFileSource.LOCAL
      ? (fileMetaData.fileName ?? '')
      : getLastDirOrFileNameFromPath(fileMetaData.path);

  const fileNameWithoutExtension = getLastDirOrFileNameWithoutExtension(rawFileName);

  return sanitizeTableName(fileNameWithoutExtension);
};