angular.module('push')
  .factory('IMChatService', function ($q, IMChatConfig) {
    return {
      // 初始化MQTT参数配置
      initMQTT: function () {
        mqtt.init(IMChatConfig);
      },
      // 连接MQTT服务器
      connect: function () {
        var deferred = $q.defer();
        mqtt.connect(function (result) {
            deferred.resolve(result);
          },
          function (err) {
            deferred.reject(err);
          });
        return deferred.promise;
      },
      // 断开MQTT服务器
      disconnect: function () {
        var deferred = $q.defer();
        mqtt.disconnect(function (result) {
            deferred.resolve(result);
          },
          function (err) {
            deferred.reject(err);
          });
        return deferred.promise;
      },
      // 订阅主题topic
      subscribe: function (topic, qos) {
        var deferred = $q.defer();
        var option = {
          topic: topic,
          qos: qos
        };
        mqtt.subscribe(option, function (result) {
            deferred.resolve(result);
          },
          function (err) {
            deferred.reject(err);
          });
        return deferred.promise;
      },
      // 取消订阅主题topic
      unsubscribe: function (topic) {
        var deferred = $q.defer();
        mqtt.unsubscribe({topic: topic}, function (result) {
            deferred.resolve(result);
          },
          function (err) {
            deferred.reject(err);
          });
        return deferred.promise;
      },
      // 于主题topic下发布消息
      publish: function (option) {
        var deferred = $q.defer();
        mqtt.publish(option, function (result) {
            deferred.resolve(result);
          },
          function (err) {
            deferred.reject(err);
          });
        return deferred.promise;
      },
      // 于主题topic下发布遗嘱消息
      will: function (topic, message, qos, retain) {
        var option = {
          topic: topic,
          message: message,
          qos: qos,
          retain: retain
        };
        mqtt.will(option);
      },
      // 设置角标消息数
      setBadge: function (num) {
        cordova.plugins.notification.badge.set(num);
      },
      // 增加角标消息数
      increaseBadge: function (num) {
        cordova.plugins.notification.badge.increase(num, function (badge) {
          console.log(badge);
        });
      },
      // 减少角标消息数
      decreaseBadge: function (num) {
        cordova.plugins.notification.badge.decrease(num, function (badge) {
          console.log(badge);
        });
      },
      // 清空角标消息数
      clearBadge: function () {
        cordova.plugins.notification.badge.clear();
      },
      // 获取角标消息数
      getBadge: function () {
        var deferred = $q.defer();
        try {
          cordova.plugins.notification.badge.get(function (badge) {
            deferred.resolve(badge);
          });
        }catch (e){
          deferred.reject(e);
        }
        return deferred.promise;
      }
    }
  });