const scripts = ['https://apis.google.com/js/api.js', 'https://accounts.google.com/gsi/client'];
const DISCOVERY_DOC = 'https://www.googleapis.com/discovery/v1/apis/drive/v3/rest';
const CLIENT_ID = '53206975661-ih3r0ubph3rqejdq97b029difbrk2bqj.apps.googleusercontent.com';

// Authorization scopes required by the API; multiple scopes can be
// included, separated by spaces.
const SCOPES = 'openid email profile https://www.googleapis.com/auth/drive.appdata';

export class GoogleClient {
  async initGApi() {
    return new Promise((resolve, reject) => {
      gapi.load('client', async () => {
        await gapi.client.init({
          discoveryDocs: [DISCOVERY_DOC],
        });
        resolve();
      });
    });
  }
  async initGoolgeClient() {
    await Promise.all([loadSingleScript([scripts[0]]), loadSingleScript([scripts[1]])]);
    await this.initGApi();

    this.tokenClient = google.accounts.oauth2.initTokenClient({
      client_id: CLIENT_ID,
      scope: SCOPES,
      callback: '', // defined later
    });
    console.log('google client init success');
  }
  login(funid) {
    this.tokenClient.callback = async (resp) => {
      if (resp.error !== undefined) {
        throw resp;
      }
      console.log('token: ', gapi.client.getToken());
      this.access_token = gapi.client.getToken().access_token;
      let result = {
        data: gapi.client.getToken().access_token,
        errcode: 0,
      };
      jc.wallet.nativeSvr.handleNativeCallback(funid, JSON.stringify(result));
    };

    if (gapi.client.getToken() === null) {
      // Prompt the user to select a Google Account and ask for consent to share their data
      // when establishing a new session.
      this.tokenClient.requestAccessToken({ prompt: 'consent' });
    } else {
      // Skip display of account chooser and consent dialog for an existing session.
      this.tokenClient.requestAccessToken({ prompt: '' });
    }
  }
}