wxappb2b/GuangZuan/miniprogram/services/index.ts

import { appConfig } from '../config/index'
import { httpRequest } from './http/index'

export default new (class {
  /** 服务配置信息 */
  config = {
    commSearchUrl: '',
    goCommonSearchUrl: '',
    mobileAuthUrl: '',
    mobileOpenUrl: '',
    newsUrl: '',
    openApiUrl: '',
    quoteHost: '',
    quotePort: '',
    quoteUrl: '',
    tradeHost: '',
    tradePort: '',
    tradeUrl: '',
    uploadUrl: '',
    goAccess: ''
  }

  /** 服务初始化状态 */
  isReady = false;

  /** 等待服务初始化 */
  private pending = true;

  /**
   * 尝试自动初始化，若断网或其它原因导致初始化失败，需手动初始化
   */
  private tryInit = this.init();

  /**
   * 初始化服务配置
   */
  private init(): Promise<void> {
    return new Promise((resolve, reject) => {
      // 获取服务接口地址
      httpRequest(appConfig.apiUrl, 'GET', {
        success: (res) => {
          this.config = res.data as any;
          this.isReady = true;
          resolve();
          // 连接交易服务
          // socket.connectTrade();
        },
        fail: () => {
          reject('获取服务配置地址失败');
        },
        complete: () => {
          this.pending = false;
        }
      })
    })
  }

  /**
   * 服务初始化完成时触发
   * @param callback 
   */
  async onReady(callback?: () => void) {
    // 初始化失败时重新初始化
    if (!this.isReady && !this.pending) {
      this.tryInit = this.init();
    }
    // 确保当前只有一个初始化实例
    await this.tryInit.then(() => callback && callback());
  }
})