/**
 * 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.WizardStep9Controller = Em.Controller.extend({
  name: 'wizardStep9Controller',
  hosts: [],
  progress: '0',
  isStepCompleted: false,
  isSubmitDisabled: function () {
    return !this.get('isStepCompleted'); //TODO: uncomment after the hook up
    return false;
  }.property('isStepCompleted'),

  mockHostData: require('data/mock/step9_hosts'),
  pollDataCounter: 0,
  polledData: [],

  status: function () {
    if (this.hosts.everyProperty('status', 'success')) {
      return 'success';
    } else if (this.hosts.someProperty('status', 'failed')) {
      return 'failed';
    } else if (this.hosts.someProperty('status', 'warning')) {
      return 'warning';
    } else {
      return 'info';
    }
  }.property('hosts.@each.status'),

  navigateStep: function () {

    //TODO: uncomment following line after the hook up with the API call
    if (this.get('content.cluster.isCompleted') === false) {
      this.loadStep();
      if (App.db.getClusterStatus().isInstallError === true) {
        this.set('isStepCompleted', true);
        this.set('status', 'failed');
        this.set('progress', '100');
      } else if (App.db.getClusterStatus().isStartError === true) {
        this.launchStartServices();
      } else {
        this.startPolling();
      }
    } else {
      this.set('isStepCompleted', true);
      this.set('progress', '100');
    }
  },

  clearStep: function () {
    this.hosts.clear();
    this.set('status', 'info');
    this.set('progress', '0');
    this.set('isStepCompleted', false);
  },

  loadStep: function () {
    console.log("TRACE: Loading step9: Install, Start and Test");
    this.clearStep();
    this.renderHosts(this.loadHosts());
  },

  loadHosts: function () {
    var hostInfo = [];
    hostInfo = App.db.getHosts();
    var hosts = new Ember.Set();
    for (var index in hostInfo) {
      hosts.add(hostInfo[index]);
      console.log("TRACE: host name is: " + hostInfo[index].name);
    }
    return hosts;
    //return hosts.filterProperty('bootStatus', 'success'); //TODO: uncomment after actual hookup with bootstrap
  },

  renderHosts: function (hostsInfo) {
    hostsInfo.forEach(function (_hostInfo) {
      var hostInfo = App.HostInfo.create({
        name: _hostInfo.name,
        status: _hostInfo.status,
        message: _hostInfo.message,
        progress: _hostInfo.progress
      });

      console.log('pushing ' + hostInfo.name);
      this.hosts.pushObject(hostInfo);
    }, this);
  },

  replacePolledData: function (polledData) {
    this.polledData.clear;
    this.set('polledData', polledData);
    console.log('*******/ In replace PolledData function **********/');
    console.log("The value of polleddata is: " + polledData);
    console.log("2.The value of polleddata is: " + this.get('polledData'));
    this.get('polledData').forEach(function (_data) {
      console.log('The name of the host is: ' + _data.Tasks.host_name);
      console.log('The status of the task is: ' + _data.Tasks.status);
    }, this);
  },

  displayMessage: function (task) {
    console.log("In display message with task command value: " + task.command);
    switch (task.command) {
      case 'INSTALL':
        switch (task.status) {
          case 'PENDING':
            return 'Preparing to install ' + task.role;
          case 'QUEUED' :
            return task.role + ' is Queued for installation';
          case 'IN_PROGRESS':
            return 'Installing ' + task.role;
          case 'COMPLETED' :
            return 'Successfully installed ' + task.role;
          case 'FAILED':
            return 'Faliure in installing ' + task.role;
        }
      case 'UNINSTALL':
        switch (task.status) {
          case 'PENDING':
            return 'Preparing to uninstall ' + task.role;
          case 'QUEUED' :
            return task.role + ' is Queued for uninstallation';
          case 'IN_PROGRESS':
            return 'Unnstalling ' + task.role;
          case 'COMPLETED' :
            return 'Successfully uninstalled ' + task.role;
          case 'FAILED':
            return 'Faliure in uninstalling ' + task.role;
        }
      case 'START' :
        switch (task.status) {
          case 'PENDING':
            return 'Preparing to start ' + task.role;
          case 'QUEUED' :
            return task.role + ' is Queued for starting';
          case 'IN_PROGRESS':
            return 'Starting ' + task.role;
          case 'COMPLETED' :
            return task.role + ' started successfully';
          case 'FAILED':
            return task.role + ' failed to start';
        }
      case 'STOP' :
        switch (task.status) {
          case 'PENDING':
            return 'Preparing to stop ' + role;
          case 'QUEUED' :
            return task.role + ' is Queued for stopping';
          case 'IN_PROGRESS':
            return 'Stopping ' + task.role;
          case 'COMPLETED' :
            return role + ' stoped successfully';
          case 'FAILED':
            return role + ' failed to stop';
        }
      case 'EXECUTE' :
        switch (task.status) {
          case 'PENDING':
            return 'Preparing to execute' + task.role;
          case 'QUEUED' :
            return task.role + ' is Queued for execution';
          case 'IN_PROGRESS':
            return 'Execution of ' + task.role + ' in progress';
          case 'COMPLETED' :
            return task.role + ' executed successfully';
          case 'FAILED':
            return task.role + ' failed to execute';
        }
      case 'ABORT' :
        switch (task.status) {
          case 'PENDING':
            return 'Preparing to abort ' + task.role;
          case 'QUEUED' :
            return task.role + ' is Queued for Aborting';
          case 'IN_PROGRESS':
            return 'Aborting ' + task.role;
          case 'COMPLETED' :
            return task.role + ' aborted successfully';
          case 'FAILED':
            return task.role + ' failed to abort';
        }
    }
  },

  launchStartServices: function () {
    var self = this;
    var clusterName = this.get('content.cluster.name');
    var url = '/api/clusters/' + clusterName + '/services?state=INSTALLED';
    var data = '{"ServiceInfo": {"state": "STARTED"}}';
    $.ajax({
      type: 'PUT',
      url: url,
      async: false,
      data: data,
      dataType: 'text',
      timeout: 5000,
      success: function (data) {
        var jsonData = jQuery.parseJSON(data);
        console.log("TRACE: Step9 -> In success function for the startService call");
        console.log("TRACE: Step9 -> value of the url is: " + url);
        console.log("TRACE: Step9 -> value of the received data is: " + jsonData);
        var requestId = jsonData.href.match(/.*\/(.*)$/)[1];
        console.log('requestId is: ' + requestId);
        var clusterStatus = {
          status: 'INSTALLED',
          requestId: requestId,
          isStartError: false,
          isCompleted: false
        };
        App.router.get('installerController').saveClusterStatus(clusterStatus);
        this.startPolling();
      },

      error: function () {
        console.log("ERROR");
        var clusterStatus = {
          status: 'PENDING',
          isStartError: true,
          isCompleted: false
        };

        App.router.get('installerController').saveClusterStatus(clusterStatus);
      },

      statusCode: require('data/statusCodes')
    });
  },


  getCompletedTasksForHost: function (host) {
    var hostname = host.get('name');
    console.log("The hostname is: " + hostname);
  },


  onSuccessPerHost: function (actions, contentHost) {
    if (actions.everyProperty('Tasks.status', 'COMPLETED') && this.get('content.cluster.status') === 'INSTALLED') {
      contentHost.set('status', 'success');
    }
  },

  onWarningPerHost: function (actions, contentHost) {
    if (actions.findProperty('Tasks.status', 'FAILED') || actions.findProperty('Tasks.status', 'ABORTED') || actions.findProperty('Tasks.status', 'TIMEDOUT')) {
      console.log('step9: In warning');
      contentHost.set('status', 'warning');
      this.set('status', 'warning');
    }
  },

  onInProgressPerHost: function (tasks, contentHost) {
    var runningAction = tasks.findProperty('Tasks.status', 'IN_PROGRESS');
    if (runningAction === undefined || runningAction === null) {
      runningAction = tasks.findProperty('Tasks.status', 'QUEUED');
    }
    if (runningAction === undefined || runningAction === null) {
      runningAction = tasks.findProperty('Tasks.status', 'PENDING');
    }
    if (runningAction !== null && runningAction !== undefined) {
      contentHost.set('message', this.displayMessage(runningAction.Tasks));
    }
  },

  progressPerHost: function (actions, contentHost) {
    var progress = 0;
    var actionsPerHost = actions.length;
    var completedActions = actions.filterProperty('Tasks.status', 'COMPLETED').length
      + actions.filterProperty('Tasks.status', 'IN_PROGRESS').length
      + actions.filterProperty('Tasks.status', 'FAILED').length
      + actions.filterProperty('Tasks.status', 'ABORTED').length
      + actions.filterProperty('Tasks.status', 'TIMEDOUT').length;
    if (this.get('content.cluster.status') === 'PENDING') {
      progress = Math.floor(((completedActions / actionsPerHost) * 100) / 3);
    } else if (this.get('content.cluster.status') === 'INSTALLED') {
      progress = 34 + Math.floor(((completedActions / actionsPerHost) * 100 * 2) / 3);
    }
    console.log('INFO: progressPerHost is: ' + progress);
    contentHost.set('progress', progress.toString());
    return progress;
  },

  isSuccess: function (polledData) {
    return polledData.everyProperty('Tasks.status', 'COMPLETED');
  },

  isStepFailed: function (polledData) {
    var self = this;
    var result = false;
    polledData.forEach(function (_polledData) {
      _polledData.Tasks.sf = 100;  //TODO: Remove this line after hook up with actual success factor
      var successFactor = _polledData.Tasks.sf;
      console.log("Step9: isStepFailed sf value: " + successFactor);
      var actionsPerRole = polledData.filterProperty('Tasks.role', _polledData.Tasks.role);
      var actionsFailed = actionsPerRole.filterProperty('Tasks.status', 'FAILED');
      var actionsAborted = actionsPerRole.filterProperty('Tasks.status', 'ABORTED');
      var actionsTimedOut = actionsPerRole.filterProperty('Tasks.status', 'TIMEDOUT');
      if ((((actionsFailed.length + actionsAborted.length + actionsTimedOut.length) / actionsPerRole.length) * 100) > (100 - successFactor)) {
        console.log('TRACE: Entering success factor and result is failed');
        result = true;
      }
    });
    return result;
  },

  getFailedHostsForFailedRoles: function (polledData) {
    var hostArr = new Ember.Set();
    polledData.forEach(function (_polledData) {
      _polledData.sf = 100;  //TODO: Remove this line after hook up with actual success factor
      var successFactor = _polledData.sf;
      var actionsPerRole = polledData.filterProperty('Tasks.role', _polledData.Tasks.role);
      var actionsFailed = actionsPerRole.filterProperty('Tasks.status', 'FAILED');
      var actionsAborted = actionsPerRole.filterProperty('Tasks.status', 'ABORTED');
      var actionsTimedOut = actionsPerRole.filterProperty('Tasks.status', 'TIMEDOUT');
      if ((((actionsFailed.length + actionsAborted.length + actionsTimedOut.length) / actionsPerRole.length) * 100) > (100 - successFactor)) {
        actionsFailed.forEach(function (_actionFailed) {
          hostArr.add(_actionFailed.Tasks.host_name);
        });
        actionsAborted.forEach(function (_actionFailed) {
          hostArr.add(_actionFailed.Tasks.host_name);
        });
        actionsTimedOut.forEach(function (_actionFailed) {
          hostArr.add(_actionFailed.Tasks.host_name);
        });
      }
    });
    return hostArr;
  },

  setHostsStatus: function (hosts, status) {
    hosts.forEach(function (_host) {
      var host = this.hosts.findProperty('name', _host.Tasks.host_name);
      host.set('status', status);
      host.set('progress', '100');
    }, this);
  },

// polling from ui stops only when no action has 'pending', 'queued' or 'inprogress' status

  finishState: function (polledData) {
    var clusterStatus = {};
    var requestId = this.get('content.cluster.requestId');
    if (this.get('content.cluster.status') === 'INSTALLED') {
      if (!polledData.someProperty('Tasks.status', 'PENDING') && !polledData.someProperty('Tasks.status', 'QUEUED') && !polledData.someProperty('Tasks.status', 'IN_PROGRESS')) {
        this.set('progress', '100');
        clusterStatus = {
          status: 'INSTALLED',
          requestId: requestId,
          isCompleted: true
        }
        if (this.isSuccess(polledData)) {
          clusterStatus.status = 'STARTED';
          this.set('status', 'success');
        } else {
          if (this.isStepFailed(polledData)) {
            clusterStatus.status = 'FAILED';
            this.set('status', 'failed');
            this.setHostsStatus(this.getFailedHostsForFailedRoles(polledData));
          }
        }
        App.router.get('installerController').saveClusterStatus(clusterStatus);
        this.set('isStepCompleted', true);
      }
    } else if (this.get('content.cluster.status') === 'PENDING') {
      if (!polledData.someProperty('Tasks.status', 'PENDING') && !polledData.someProperty('Tasks.status', 'QUEUED') && !polledData.someProperty('Tasks.status', 'IN_PROGRESS')) {
        clusterStatus = {
          status: 'PENDING',
          requestId: requestId,
          isCompleted: true
        }
        if (this.isStepFailed(polledData)) {
          clusterStatus.status = 'FAILED';
          this.set('progress', '100');
          this.set('status', 'failed');
          this.setHostsStatus(this.getFailedHostsForFailedRoles(polledData), 'failed');
          this.set('isStepCompleted', true);
        } else {
          clusterStatus.status = 'INSTALLED';
          this.set('progress', '34');
          // this.launchStartServices();  //TODO: uncomment after the actual hookup
        }
        App.router.get('installerController').saveClusterStatus(clusterStatus);
      }
    }
  },


  parseHostInfo: function (polledData) {
    console.log('TRACE: Entering host info function');
    var self = this;
    var totalProgress;
    /* if (this.get('content.cluster.status') === 'INSTALLED') {
     totalProgress = 34;
     } else {
     totalProgress = 0;
     }  */
    var tasksData = polledData.tasks;
    console.log("The value of tasksData is: " + tasksData);
    if (!tasksData) {
      console.log("Step9: ERROR: NO tasks availaible to process");
    }
    tasksData.forEach(function (_host) {
      console.log("The host name is " + _host.Tasks.host_name);
    }, this);

    this.replacePolledData(tasksData);
    this.hosts.forEach(function (_content) {
      var actionsPerHost = tasksData.filterProperty('Tasks.host_name', _content.name); // retrieved from polled Data
      if (actionsPerHost.length === 0) {
        alert('For testing with mockData follow the sequence: hit referesh,"mockData btn", "pollData btn", again "pollData btn"');
        //exit();
      }
      if (actionsPerHost !== null && actionsPerHost !== undefined && actionsPerHost.length !== 0) {
        this.onSuccessPerHost(actionsPerHost, _content);    // every action should be a success
        this.onWarningPerHost(actionsPerHost, _content);    // any action should be a faliure
        this.onInProgressPerHost(actionsPerHost, _content); // current running action for a host
        totalProgress = self.progressPerHost(actionsPerHost, _content);
      }
    }, this);
    totalProgress = Math.floor(totalProgress / this.hosts.length);
    this.set('progress', totalProgress.toString());
    console.log("INFO: right now the progress is: " + this.get('progress'));
    this.finishState(tasksData);
    return this.get('isStepCompleted');
  },

  startPolling: function () {
    this.set('isSubmitDisabled', true);
    this.doPolling();
  },

  getUrl: function () {
    var clusterName = this.get('content.cluster.name');
    var requestId = App.db.getClusterStatus().requestId;
    var url = '/api/clusters/' + clusterName + '/requests/' + requestId;
    console.log("URL for step9 is: " + url);
    return url;
  },

  doPolling: function () {
    var self = this;
    var url = this.getUrl();
    $.ajax({
      type: 'GET',
      url: url,
      async: true,
      timeout: 10000,
      dataType: 'text',
      success: function (data) {
        console.log("TRACE: In success function for the GET bootstrap call");
        console.log("TRACE: STep9 -> The value is: " + jQuery.parseJSON(data));
        var result = self.parseHostInfo(jQuery.parseJSON(data));
        if (result !== true) {
          window.setTimeout(function () {
            self.doPolling();
          }, 4000);
        } else {
          self.stopPolling();
        }
      },

      error: function (request, ajaxOptions, error) {
        console.log("TRACE: STep9 -> In error function for the getService call");
        console.log("TRACE: STep9 -> value of the url is: " + url);
        console.log("TRACE: STep9 -> error code status is: " + request.status);
        self.stopPolling();
      },

      statusCode: require('data/statusCodes')
    });

  },

  stopPolling: function () {
    //TODO: uncomment following line after the hook up with the API call
    // this.set('isStepCompleted',true);
  },

  submit: function () {
    if (!this.get('isSubmitDisabled')) {
      this.set('content.cluster.status', this.get('status'));
      this.set('content.cluster.isCompleted', true);
      App.router.send('next');
    }
  },

  back: function () {
    if (!this.get('isSubmitDisabled')) {
      App.router.send('back');
    }
  },

  mockBtn: function () {
    this.set('isSubmitDisabled', false);
    this.hosts.clear();
    var hostInfo = this.mockHostData;
    this.renderHosts(hostInfo);

  },
  pollBtn: function () {
    this.set('isSubmitDisabled', false);
    var data1 = require('data/mock/step9PolledData/pollData_1');
    var data2 = require('data/mock/step9PolledData/pollData_2');
    var data3 = require('data/mock/step9PolledData/pollData_3');
    var data4 = require('data/mock/step9PolledData/pollData_4');
    var data5 = require('data/mock/step9PolledData/pollData_5');
    var data6 = require('data/mock/step9PolledData/pollData_6');
    var data7 = require('data/mock/step9PolledData/pollData_7');
    var data8 = require('data/mock/step9PolledData/pollData_8');
    var data9 = require('data/mock/step9PolledData/pollData_9');
    console.log("TRACE: In pollBtn function data1");
    var counter = parseInt(this.get('pollDataCounter')) + 1;
    this.set('pollDataCounter', counter.toString());
    switch (this.get('pollDataCounter')) {
      case '1':
        this.parseHostInfo(data1);
        break;
      case '2':
        this.parseHostInfo(data2);
        break;
      case '3':
        this.parseHostInfo(data3);
        break;
      case '4':
        this.parseHostInfo(data4);
        break;
      case '5':
        this.parseHostInfo(data5);
        break;
      case '6':
        this.set('content.cluster.status', 'INSTALLED');
        this.parseHostInfo(data6);
        break;
      case '7':
        this.parseHostInfo(data7);
        break;
      case '8':
        this.parseHostInfo(data8);
        break;
      case '9':
        this.parseHostInfo(data9);
        break;
      default:
        break;
    }
  }
});