/*
 * Tencent is pleased to support the open source community by making TMagicEditor available.
 *
 * Copyright (C) 2023 THL A29 Limited, a Tencent company.  All rights reserved.
 *
 * 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 { cloneDeep, union } from 'lodash-es';

import type { AppCore } from '@tmagic/schema';
import { getDepNodeIds, getNodes, replaceChildNode } from '@tmagic/utils';

import DataSourceManager from './DataSourceManager';

/**
 * 创建数据源管理器
 * @param dsl DSL
 * @param httpDataSourceOptions http 数据源配置
 * @returns DataSourceManager
 */
export const createDataSourceManager = (app: AppCore, useMock?: boolean) => {
  const { dsl, platform } = app;
  if (!dsl?.dataSources) return;

  const dataSourceManager = new DataSourceManager({ app, useMock });

  if (dsl.dataSources && dsl.dataSourceCondDeps && platform !== 'editor') {
    getNodes(getDepNodeIds(dsl.dataSourceCondDeps), dsl.items).forEach((node) => {
      node.condResult = dataSourceManager.compliedConds(node);
      replaceChildNode(node, dsl!.items);
    });
  }

  if (dsl.dataSources && dsl.dataSourceDeps) {
    getNodes(getDepNodeIds(dsl.dataSourceDeps), dsl.items).forEach((node) => {
      replaceChildNode(dataSourceManager.compiledNode(node), dsl!.items);
    });
  }

  dataSourceManager.on('change', (sourceId: string) => {
    const dep = dsl.dataSourceDeps?.[sourceId] || {};
    const condDep = dsl.dataSourceCondDeps?.[sourceId] || {};

    const nodeIds = union([...Object.keys(condDep), ...Object.keys(dep)]);

    dataSourceManager.emit(
      'update-data',
      getNodes(nodeIds, dsl.items).map((node) => {
        const newNode = cloneDeep(node);
        newNode.condResult = dataSourceManager.compliedConds(node);
        return dataSourceManager.compiledNode(newNode);
      }),
      sourceId,
    );
  });

  return dataSourceManager;
};