feat: 新增数据源

packages/data-source/src/data-sources/Base.ts

@@ -0,0 +1,75 @@
+/*
+ * 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 EventEmitter from 'events';
+
+import type { DataSchema } from '@tmagic/schema';
+
+import type { DataSourceOptions } from '@data-source/types';
+import { getDefaultValueFromFields } from '@data-source/util';
+
+/**
+ * 静态数据源
+ */
+export default class DataSource extends EventEmitter {
+  public type = 'base';
+
+  public id: string;
+
+  public isInit = false;
+
+  public data: Record<string, any> = {};
+
+  private fields: DataSchema[] = [];
+
+  constructor(options: DataSourceOptions) {
+    super();
+
+    this.id = options.schema.id;
+    this.setFields(options.schema.fields);
+
+    this.updateDefaultData();
+  }
+
+  public setFields(fields: DataSchema[]) {
+    this.fields = fields;
+  }
+
+  public setData(data: Record<string, any>) {
+    // todo: 校验数据，看是否符合 schema
+    this.data = data;
+    this.emit('change');
+  }
+
+  public getDefaultData() {
+    return getDefaultValueFromFields(this.fields);
+  }
+
+  public updateDefaultData() {
+    this.setData(this.getDefaultData());
+  }
+
+  public async init() {
+    this.isInit = true;
+  }
+
+  public destroy() {
+    this.data = {};
+    this.fields = [];
+    this.removeAllListeners();
+  }
+}

packages/data-source/src/data-sources/Http.ts

@@ -0,0 +1,130 @@
+/*
+ * 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 { getValueByKeyPath } from '@tmagic/utils';
+
+import { HttpDataSourceOptions, HttpDataSourceSchema, HttpOptions, RequestFunction } from '@data-source/types';
+
+import DataSource from './Base';
+
+/**
+ * 将json对象转换为urlencoded字符串
+ * @param data json对象
+ * @returns string
+ */
+const urlencoded = (data: Record<string, string | number | boolean | null | undefined>) =>
+  Object.entries(data).reduce((prev, [key, value]) => {
+    let v = value;
+    if (typeof value === 'object') {
+      v = JSON.stringify(value);
+    }
+    if (typeof value !== 'undefined') {
+      return `${prev}${prev ? '&' : ''}${globalThis.encodeURIComponent(key)}=${globalThis.encodeURIComponent(`${v}`)}`;
+    }
+    return prev;
+  }, '');
+
+/**
+ * 浏览器端请求
+ * 如果未有自定义的request方法，则使用浏览器的fetch方法
+ * @param options 请求参数
+ */
+const webRequest = async (options: HttpOptions) => {
+  const { url, method = 'GET', headers = {}, params = {}, data = {}, ...config } = options;
+  const query = urlencoded(params);
+  let body: string = JSON.stringify(data);
+  if (headers['Content-Type']?.includes('application/x-www-form-urlencoded')) {
+    body = urlencoded(data);
+  }
+
+  const response = await globalThis.fetch(query ? `${url}?${query}` : url, {
+    method,
+    headers,
+    body: method === 'GET' ? undefined : body,
+    ...config,
+  });
+
+  return response.json();
+};
+
+/**
+ * Http 数据源
+ * @description 通过 http 请求获取数据
+ */
+export default class HttpDataSource extends DataSource {
+  public type = 'http';
+
+  public isLoading = false;
+  public error?: Error;
+  public schema: HttpDataSourceSchema;
+  public httpOptions: HttpOptions;
+
+  private fetch?: RequestFunction;
+
+  constructor(options: HttpDataSourceOptions) {
+    const { options: httpOptions, ...dataSourceOptions } = options.schema;
+
+    super({
+      schema: dataSourceOptions,
+    });
+
+    this.schema = options.schema;
+    this.httpOptions = httpOptions;
+
+    if (typeof options.request === 'function') {
+      this.fetch = options.request;
+    } else if (typeof globalThis.fetch === 'function') {
+      this.fetch = webRequest;
+    }
+  }
+
+  public async init() {
+    if (this.schema.autoFetch) {
+      await this.request(this.httpOptions);
+    }
+
+    super.init();
+  }
+
+  public async request(options: HttpOptions) {
+    const res = await this.fetch?.({
+      ...this.httpOptions,
+      ...options,
+    });
+
+    if (this.schema.responseOptions?.dataPath) {
+      const data = getValueByKeyPath(this.schema.responseOptions.dataPath, res);
+      this.setData(data);
+    } else {
+      this.setData(res);
+    }
+  }
+
+  public get(options: Partial<HttpOptions> & { url: string }) {
+    return this.request({
+      ...options,
+      method: 'GET',
+    });
+  }
+
+  public post(options: Partial<HttpOptions> & { url: string }) {
+    return this.request({
+      ...options,
+      method: 'POST',
+    });
+  }
+}

packages/data-source/src/data-sources/index.ts

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+export { default as DataSource } from './Base';
+export { default as HttpDataSource } from './Http';