/**
 * Datart
 *
 * Copyright 2021
 *
 * Licensed 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 { isEmptyArray } from 'utils/object';
import { Column, ColumnRole } from '../../../slice/types';

export const toModel = (columns: Column[], ...additionalColumns): object => {
  return columns
    .concat(...additionalColumns)
    .filter(
      col => col?.role !== ColumnRole.Hierarchy || !isEmptyArray(col?.children),
    )
    .reduce((acc, cur, newIndex) => {
      if (cur?.role === ColumnRole.Hierarchy && !isEmptyArray(cur?.children)) {
        const orderedChildren = cur.children?.map((child, newIndex) => {
          return {
            ...child,
            index: newIndex,
          };
        });
        acc[cur.name] = Object.assign({}, cur, {
          index: newIndex,
          children: orderedChildren,
        });
      } else {
        acc[cur.name] = Object.assign({}, cur, {
          index: newIndex,
          children: undefined,
        });
      }
      return acc;
    }, {});
};
