/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
var App = require('app');

App.clusterStatus = Ember.Object.create({
  clusterName: '',
  validStates: [
    'DEFAULT',
    'CLUSTER_NOT_CREATED_1',
    'CLUSTER_DEPLOY_PREP_2',
    'CLUSTER_INSTALLING_3',
    'SERVICE_STARTING_3',
    'CLUSTER_INSTALLED_4',
    'ADD_HOSTS_DEPLOY_PREP_2',
    'ADD_HOSTS_INSTALLING_3',
    'ADD_HOSTS_INSTALLED_4',
    'ADD_SERVICES_DEPLOY_PREP_2',
    'ADD_SERVICES_INSTALLING_3',
    'ADD_SERVICES_INSTALLED_4',
    'STOPPING_SERVICES',
    'STACK_UPGRADING',
    'STACK_UPGRADE_FAILED',
    'STACK_UPGRADED',
    'ADD_SECURITY_STEP_1',
    'ADD_SECURITY_STEP_2',
    'ADD_SECURITY_STEP_3',
    'ADD_SECURITY_STEP_4',
    'DISABLE_SECURITY',
    'HIGH_AVAILABILITY_DEPLOY',
    'ROLLBACK_HIGH_AVAILABILITY'],
  clusterState: 'CLUSTER_NOT_CREATED_1',
  wizardControllerName: null,
  localdb: null,
  key: 'CLUSTER_CURRENT_STATUS',
  isInstalled: function(){
    var notInstalledStates = ['CLUSTER_NOT_CREATED_1', 'CLUSTER_DEPLOY_PREP_2', 'CLUSTER_INSTALLING_3', 'SERVICE_STARTING_3'];
    return !notInstalledStates.contains(this.get('clusterState'));
  }.property('clusterState'),
  /**
   * get cluster data from server and update cluster status
   * @param isAsync: set this to true if the call is to be made asynchronously.  if unspecified, false is assumed
   * @return promise object for the get call
   */
  updateFromServer: function(isAsync, overrideLocaldb) {
    // if isAsync is undefined, set it to false
    isAsync = isAsync || false;
    // if overrideLocaldb is undefined, set it to true
    if(typeof overrideLocaldb == "undefined"){
      overrideLocaldb =  true;
    }
    var user = App.db.getUser();
    var login = App.db.getLoginName();
    var url = App.apiPrefix + '/persist/' + this.get('key');
    return jQuery.ajax(
      {
        url: url,
        context: this,
        async: isAsync,
        success: function (response) {
          if (response) {
            var newValue = jQuery.parseJSON(response);
            if (newValue.clusterState) {
              this.set('clusterState', newValue.clusterState);
            }
            if (newValue.clusterName) {
              this.set('clusterName', newValue.clusterName);
            }
            if (newValue.wizardControllerName) {
              this.set('wizardControllerName', newValue.wizardControllerName);
            }
            if (newValue.localdb) {
              this.set('localdb', newValue.localdb);
              if (overrideLocaldb) {
                App.db.data = newValue.localdb;
                App.db.setLocalStorage();
                App.db.setUser(user);
                App.db.setLoginName(login);
              }
            }
          } else {
            // default status already set
          }
          // this is to ensure that the local storage namespaces are initialized with all expected namespaces.
          // after upgrading ambari, loading local storage data from the "persist" data saved via an older version of
          // Ambari can result in missing namespaces that are defined in the new version of Ambari.
          App.db.mergeStorage();
        },
        error: function (xhr) {
          if (xhr.status == 404) {
            // default status already set
            console.log('Persist API did NOT find the key CLUSTER_CURRENT_STATUS');
            return;
          }
          App.ModalPopup.show({
            header: Em.I18n.t('common.error'),
            secondary: false,
            bodyClass: Ember.View.extend({
              template: Ember.Handlebars.compile('<p>{{t common.update.error}}</p>')
            })
          });
        },
        statusCode: require('data/statusCodes')
      }
    );
  },
  /**
   * update cluster status and post it on server
   * @param newValue
   * @return {*}
   */
  setClusterStatus: function(newValue){
    if(App.testMode) return false;
    var user = App.db.getUser();
    var login = App.db.getLoginName();
    var val = {clusterName: this.get('clusterName')};
    if (newValue) {
      //setter
      if (newValue.clusterName) {
        this.set('clusterName', newValue.clusterName);
        val.clusterName =  newValue.clusterName;
      }

      if (newValue.clusterState) {
        this.set('clusterState', newValue.clusterState);
        val.clusterState = newValue.clusterState;
      }
      if (newValue.wizardControllerName) {
        this.set('wizardControllerName', newValue.wizardControllerName);
        val.wizardControllerName = newValue.wizardControllerName;
      }
      if (newValue.localdb) {
        if (newValue.localdb.app && newValue.localdb.app.user)
          delete newValue.localdb.app.user;
        if (newValue.localdb.app && newValue.localdb.app.loginName)
          delete newValue.localdb.app.loginName;
        this.set('localdb', newValue.localdb);
        val.localdb = newValue.localdb;
      } else {
        delete App.db.data.app.user;
        delete App.db.data.app.loginName;
          val.localdb = App.db.data;
        App.db.setUser(user);
        App.db.setLoginName(login);
      }

      var keyValuePair = {};

      keyValuePair[this.get('key')] = JSON.stringify(val);

      App.ajax.send({
        name: 'cluster.state',
        sender: this,
        data: {
          keyValuePair: keyValuePair
        },
        beforeSend: 'clusterStatusBeforeSend',
        error: 'clusterStatusErrorCallBack'
      });
      return newValue;
    }
  },
  clusterStatusBeforeSend: function (keyValuePair) {
    console.log('BeforeSend: persistKeyValues', keyValuePair);
  },
  clusterStatusErrorCallBack: function(request, ajaxOptions, error, opt) {
    console.log("ERROR");
    if(opt.newValue.errorCallBack) {
      opt.newValue.errorCallBack();
    } else {
      var doc = $.parseXML(request.responseText);
      var msg = 'Error ' + (request.status) + ' ';
      msg += $(doc).find("body p").text();
    }
    App.ModalPopup.show({
      header: Em.I18n.t('common.error'),
      secondary: false,
      response: msg,
      bodyClass: Ember.View.extend({
        template: Ember.Handlebars.compile('<p>{{t common.persist.error}} {{response}}</p>')
      })
    });
  },

  /**
   * general info about cluster
   */
  value: function () {
      return {
        clusterName: this.get('clusterName'),
        clusterState: this.get('clusterState'),
        wizardControllerName: this.get('wizardControllerName'),
        localdb: this.get('localdb')
      };
  }.property('clusterName', 'clusterState', 'localdb', 'wizardControllerName')

});