(function () {
  'use strict';

  /**
   * MODULE DESCRIPTION:
   *
   * TODO: Write description here. 
   */
  angular.module('portal.dashboard.permissionBank', ['ui.router'])
          .controller('PermissionBankCtrl', PermissionBankCtrlController);

  function PermissionBankCtrlController($scope, cache, permissionStores, permissionProvider, $mdDialog, 
      uiGridConstants, portalUtils, Constants) {
    
    $scope.confirmQuestionBox = true;
    $scope.permissions = [];
    $scope.Constants = Constants;
    
    $scope.mCache = cache.request([new permissionStores.PermissionGroups()]).then(function(){
      $scope.permissions = $scope.mCache.permissionGroups.data.values;
    });
    
    portalUtils.setScopeValue($scope, 'loadingBlock', false, true);
    
    $scope.permGrid = {
      data: 'permissions',
      paginationPageSizes: [28, 56, 84, 102],
      paginationPageSize: 28,
      enableHorizontalScrollbar: uiGridConstants.scrollbars.NEVER,
      toggleModifierKeysToMultiSelect : true,
      enableRowHeaderSelection: true,
      enableColumnMenus: true,
      enableGridMenu: true,
      exporterCsvFilename: 'Files.csv',
      exporterMenuCsv: true,
      multiSelect: true,
      noUnselect: false,
      onRegisterApi: function (gridApi) {
        gridApi.selection.setModifierKeysToMultiSelect(true);
        $scope.permGridApi = gridApi;
      },
      columnDefs: [
        {field: 'displayName', displayName: 'Permission Group', width: '*'},
        {field: 'enabled', displayName: 'Enabled', width: '*'},
        {field: 'permissions', displayName: 'Allowed Permissions', width: '***',
          cellTemplate: '<div class="ui-grid-cell-contents">{{grid.appScope.formatPermissions(row.entity.permissions)}}</div>'},
        {field: 'id', displayName: 'Actions', width: '100', enableColumnMenu: false, enableFiltering: false, enableHiding: false, 
          cellTemplate: 'main/permission-bank/cell-templates/permission-actions.html'}
      ],
    };

    $scope.formatPermissions = function(perms) {
      var p = [];
      for (var i = 0; i < perms.length; i++) {
        var perm = perms[i];
        if (perm.allowed) {
          p.push(perm.displayName);
        }
      }
      return p.join(', ');
    };

    $scope.$on('$destroy', function () {
      $scope.mCache.unlisten();
    });

    $scope.toggleFiltering = function() {
      $scope.permGrid.enableFiltering = !$scope.permGrid.enableFiltering;
      $scope.permGridApi.core.notifyDataChange( uiGridConstants.dataChange.COLUMN );
    };

    var originatorEv;
    $scope.openMenu = function($mdOpenMenu, ev) {
      originatorEv = ev;
      $mdOpenMenu(ev);
    };
    
    $scope.delete = function(entity) {
      if ($scope.confirmQuestionBox) {
        portalUtils.confirmBox('deletePermissionGroup', 'Delete Permission Group', ['Are you sure you want to delete the permission group', entity.displayName],
            true, function(value) {
          if (value.confirm) {
            $scope.confirmQuestionBox = !value.checkbox;
            $scope.deletePermission(entity);
          }
        });
      } else {
        $scope.deletePermission(entity);
      }
    };
    
    $scope.deletePermission = function(entity) {
      portalUtils.setScopeValue($scope, 'loadingBlock', true, true);
      permissionProvider.deletePermissionGroup(entity).then(function(data) {
        portalUtils.toast('Successfully deleted permission group ' + entity.displayName, ['top', 'left'], 2000);
        portalUtils.setScopeValue($scope, 'loadingBlock', false, true);
      }).catch(function(err){
        portalUtils.toast('Unable to delete permission group: ' + err.message, ['top', 'left'], 4000);
        portalUtils.setScopeValue($scope, 'loadingBlock', false, true);
      });
    };
    
    $scope.edit = function(entity) {
      $mdDialog.show({
        templateUrl: 'common/partials/add-permission/add-permission.html',
        controller: 'AddPermissionCtrl',
        escapeToClose: false,
        locals: {
          modalInstance: {
            header: 'Edit Permission Group',
            permission: entity,
          }
        }
      });
    };

    $scope.addPermissions = function() {
      $mdDialog.show({
        templateUrl: 'common/partials/add-permission/add-permission.html',
        controller: 'AddPermissionCtrl',
        escapeToClose: false,
        locals: {
          modalInstance: {
            header: 'Add Permissions',
          }
        }
      });
    };

  } //end PermissionBankCtrlController function

})();