index.js

'use strict';

import { DeviceEventEmitter, NativeModules, Platform } from 'react-native';
import * as WeChat from 'react-native-wechat';

let isAppRegistered = false;

// Event emitter to dispatch request and response from WeChat.

DeviceEventEmitter.addListener('WeChat_Resp', resp => {
  // emitter.emit(resp.type, resp);
});

function wrapApi(nativeFunc) {
  if (!nativeFunc) {
    return undefined;
  }
  return (...args) => {
    if (!isAppRegistered) {
      return Promise.reject(new Error('registerApp required.'));
    }
    return new Promise((resolve, reject) => {
      nativeFunc.apply(null, [
        ...args,
        (error, result) => {
          if (!error) {
            return resolve(result);
          }
          if (typeof error === 'string') {
            return reject(new Error(error));
          }
          reject(error);
        },
      ]);
    });
  };
}

/**
 * @method registerApp
 * @param {String} appid - the app id
 * @return {Promise}
 */
export const registerApp = WeChat.registerApp;

/**
 * @method registerAppWithDescription
 * @param {String} appid - the app id
 * @param {String} appdesc - the app description
 * @return {Promise}
 */
export const registerAppWithDescription = WeChat.registerAppWithDescription;

/**
 * Return if the wechat app is installed in the device.
 * @method isWXAppInstalled
 * @return {Promise}
 */
export const isWXAppInstalled = WeChat.isWXAppInstalled;

/**
 * Share something to timeline/moments/朋友圈
 * @method shareToTimeline
 * @param {Object} data
 * @param {String} data.thumbImage - Thumb image of the message, which can be a uri or a resource id.
 * @param {String} data.type - Type of this message. Could be {news|text|imageUrl|imageFile|imageResource|video|audio|file}
 * @param {String} data.webpageUrl - Required if type equals news. The webpage link to share.
 * @param {String} data.imageUrl - Provide a remote image if type equals image.
 * @param {String} data.videoUrl - Provide a remote video if type equals video.
 * @param {String} data.musicUrl - Provide a remote music if type equals audio.
 * @param {String} data.filePath - Provide a local file if type equals file.
 * @param {String} data.fileExtension - Provide the file type if type equals file.
 */
export function shareToWXTimeline(data) {
  return Wechat.shareToTimeline(data);
}

/**
 * Share something to a friend or group
 * @method shareToSession
 * @param {Object} data
 * @param {String} data.thumbImage - Thumb image of the message, which can be a uri or a resource id.
 * @param {String} data.type - Type of this message. Could be {news|text|imageUrl|imageFile|imageResource|video|audio|file}
 * @param {String} data.webpageUrl - Required if type equals news. The webpage link to share.
 * @param {String} data.imageUrl - Provide a remote image if type equals image.
 * @param {String} data.videoUrl - Provide a remote video if type equals video.
 * @param {String} data.musicUrl - Provide a remote music if type equals audio.
 * @param {String} data.filePath - Provide a local file if type equals file.
 * @param {String} data.fileExtension - Provide the file type if type equals file.
 */
export function shareToWXSession(data) {
  return Wechat.shareToSession(data);
}

/**
 * Share something to favorite
 * @method shareToFavorite
 * @param {Object} data
 * @param {String} data.thumbImage - Thumb image of the message, which can be a uri or a resource id.
 * @param {String} data.type - Type of this message. Could be {news|text|imageUrl|imageFile|imageResource|video|audio|file}
 * @param {String} data.webpageUrl - Required if type equals news. The webpage link to share.
 * @param {String} data.imageUrl - Provide a remote image if type equals image.
 * @param {String} data.videoUrl - Provide a remote video if type equals video.
 * @param {String} data.musicUrl - Provide a remote music if type equals audio.
 * @param {String} data.filePath - Provide a local file if type equals file.
 * @param {String} data.fileExtension - Provide the file type if type equals file.
 */
export function shareToWXFavorite(data) {
  return Wechat.shareToFavorite(data);
}

/**
 * promises will reject with this error when API call finish with an errCode other than zero.
 */
export class WechatError extends Error {
  constructor(resp) {
    const message = resp.errStr || resp.errCode.toString();
    super(message);
    this.name = 'WechatError';
    this.code = resp.errCode;

    // avoid babel's limition about extending Error class
    // https://github.com/babel/babel/issues/3083
    if (typeof Object.setPrototypeOf === 'function') {
      Object.setPrototypeOf(this, WechatError.prototype);
    } else {
      this.__proto__ = WechatError.prototype;
    }
  }
}