function request(path, options) {
  var app = getApp();
  var token = app.globalData.token || xhs.getStorageSync('pk_token');
  options = options || {};
  return new Promise(function (resolve, reject) {
    xhs.request({
      url: app.globalData.apiBase + path,
      method: options.method || 'GET',
      data: options.data,
      header: token ? { 'content-type': 'application/json', Authorization: 'Bearer ' + token } : { 'content-type': 'application/json' },
      success: function (res) {
        if (res.statusCode >= 200 && res.statusCode < 300) return resolve(res.data);
        reject(new Error((res.data && res.data.detail) || '请求失败（' + res.statusCode + '）'));
      },
      fail: reject
    });
  });
}

function ensureLogin() {
  var app = getApp();
  if (app.globalData.token || xhs.getStorageSync('pk_token')) return Promise.resolve();
  return new Promise(function (resolve, reject) {
    xhs.login({
      success: function (loginResult) {
        request('/api/v1/auth/xhs', {
          method: 'POST',
          data: { app_key: app.globalData.appKey, code: loginResult.code }
        }).then(function (data) {
          app.globalData.token = data.token;
          xhs.setStorageSync('pk_token', data.token);
          resolve(data);
        }).catch(reject);
      },
      fail: reject
    });
  });
}

module.exports = { request: request, ensureLogin: ensureLogin };