var httpcli = require('./httpcli');

module.exports = {
  getInstance() {
    if (!this._instance) {
      this._instance = new httpcli();
      this._instance.setRetryInterval(3000);
      this._instance.setNeedRetry(true);
    }
    return this._instance;
  },

  httpGet(url, cbRes, cbErr) {
    return this.httpsend(url, null, cbRes, cbErr, 'GET');
  },

  httpPost(url, postdata, cbRes, cbErr, contentType) {
    return this.httpsend(url, postdata, cbRes, cbErr, 'POST', contentType);
  },

  httpsend(url, urldata, cbRes, cbErr, smethod, contentType) {
    return this.getInstance().httpsend(url, urldata, cbRes, cbErr, smethod, false, contentType);
  },

  JSON_parse(text) {
    try {
      return JSON.parse(text);
    } catch (err) {
      console.log(err);
      return null;
    }
  }
};