//-- copyright
// OpenProject is a project management system.
// Copyright (C) 2012-2014 the OpenProject Foundation (OPF)
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License version 3.
//
// OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
// Copyright (C) 2006-2013 Jean-Philippe Lang
// Copyright (C) 2010-2013 the ChiliProject Team
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
//
// See doc/COPYRIGHT.rdoc for more details.
//++

module.exports = function(I18n, columnsModal, exportModal, saveModal, settingsModal, shareModal, sortingModal, groupingModal, QueryService, AuthorisationService, $window, $state, $timeout){

  return {
    restrict: 'AE',
    scope: true,
    link: function(scope, element, attributes) {
      angular.element($window).bind('click', function() {
        scope.$emit('hideAllDropdowns');
      });

      scope.$watch('query.displaySums', function(newValue, oldValue) {
        $timeout(function() {
          scope.displaySumsLabel = (newValue) ? I18n.t('js.toolbar.settings.hide_sums')
                                              : I18n.t('js.toolbar.settings.display_sums');
        });
      });

      scope.saveQuery = function(event){
        if(scope.query.isNew()){
          if( allowQueryAction(event, 'create') ){
            scope.$emit('hideAllDropdowns');
            saveModal.activate();
          }
        } else {
          if( allowQueryAction(event, 'update') ) {
            QueryService.saveQuery()
              .then(function(data){
                scope.$emit('flashMessage', data.status);
                $state.go('work-packages.list',
                          { query_id: scope.query.id, query_props: null },
                          { notify: false });
              });
          }
        }
      };

      scope.deleteQuery = function(event){
        if( allowQueryAction(event, 'delete') && preventNewQueryAction(event) && deleteConfirmed() ){
          QueryService.deleteQuery()
            .then(function(data){
              settingsModal.deactivate();
              scope.$emit('flashMessage', data.status);
              $state.go('work-packages.list',
                        { query_id: null, query_props: null },
                        { reload: true });
            });
        }
      };

      // Modals
      scope.showSaveAsModal = function(event){
        if( allowQueryAction(event, 'create') ) {
          showExistingQueryModal.call(saveModal, event);
        }
      };

      scope.showShareModal = function(event){
        if (allowQueryAction(event, 'publicize') || allowQueryAction(event, 'star')) {
          showExistingQueryModal.call(shareModal, event);
        }
      };

      scope.showSettingsModal = function(event){
        if( allowQueryAction(event, 'update') ) {
          showExistingQueryModal.call(settingsModal, event);
        }
      };

      scope.showExportModal = function(event){
        if( allowWorkPackageAction(event, 'export') ) {
          showModal.call(exportModal);
        }
      };

      scope.showColumnsModal = function(){
        showModal.call(columnsModal);
      };

      scope.showGroupingModal = function(){
        showModal.call(groupingModal);
      };

      scope.showSortingModal = function(){
        showModal.call(sortingModal);
      };

      scope.toggleDisplaySums = function(){
        scope.$emit('hideAllDropdowns');
        scope.query.displaySums = !scope.query.displaySums;

        // This eventually calls the resize event handler defined in the
        // WorkPackagesTable directive and ensures that the sum row at the
        // table footer is properly displayed.
        angular.element($window).trigger('resize');
      };

      function preventNewQueryAction(event){
        if (event && scope.query.isNew()) {
          event.preventDefault();
          event.stopPropagation();
          return false;
        }
        return true;
      }

      function showModal() {
        scope.$emit('hideAllDropdowns');
        this.activate();
      }

      function showExistingQueryModal(event) {
        if( preventNewQueryAction(event) ){
          scope.$emit('hideAllDropdowns');
          this.activate();
        }
      }

      function allowQueryAction(event, action) {
        return allowAction(event, 'query', action);
      }

      function allowWorkPackageAction(event, action) {
        return allowAction(event, 'work_package', action);
      }

      function allowAction(event, modelName, action) {
        if(AuthorisationService.can(modelName, action)){
          return true;
        } else {
          event.preventDefault();
          event.stopPropagation();
          return false;
        }
      }

      function deleteConfirmed() {
        return $window.confirm(I18n.t('js.text_query_destroy_confirmation'));
      }
    }
  };
};