angular.module('app.account')
.controller('WechatAuthCtrl', 
  ['$scope', '$location','AuthService', 'Account', 'AuthToken', 'jwtHelper',
  function($scope, $location, AuthService, Account, AuthToken, jwtHelper) {
    // 获取返回参数 code 和 state
  var code = $location.search().code;
  var state = $location.search().state;

  // 通过 code 来获得签名的 openid
  var respond = AuthToken.get_wechat_token(code, state);
  respond.then(function(data){
    // 处理 2XX 回复，获取授权令牌
    var auth_token = data.auth_token;

    // 获取签名微信 openid
    var wechat_token = data.wechat_token;
    var account_id = undefined;

    // 如果有授权令牌，存令牌，load 用户信息，转到 state 声明的路由
    if (auth_token != undefined){
      account_id = jwtHelper.decodeToken(auth_token).id;
      Account.getById(account_id).then(function(account) {
        AuthService.login(data, account);
        if(state != ""){
          $location.path(decodeURIComponent(state));
        }else{
          $location.path('/projects');
        }
      })
    } 
    else{
      // 没有授权令牌，说明没有绑定到微信 openid，存微信令牌用于后面的绑定
      AuthService.storeWechatToken(wechat_token);
      $location.path("/login");
    }
  },function(data){
    $location.path("/login");
  });
}])