//-- 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($scope, ColumnContextMenu, I18n, QueryService, WorkPackagesTableHelper, WorkPackagesTableService, columnsModal) {

    $scope.I18n = I18n;

    $scope.$watch('column', function() {
      // fall back to 'id' column as the default
      $scope.column = $scope.column || { name: 'id', sortable: true };
      $scope.isGroupable = WorkPackagesTableService.isGroupable($scope.column);
    });

    // context menu actions

    $scope.groupBy = function(columnName) {
      QueryService.getQuery().groupBy = columnName;
    };

    $scope.sortAscending = function(columnName) {
      WorkPackagesTableService.sortBy(columnName || 'id', 'asc');
    };

    $scope.sortDescending = function(columnName) {
      WorkPackagesTableService.sortBy(columnName || 'id', 'desc');
    };

    $scope.moveLeft = function(columnName) {
      WorkPackagesTableHelper.moveColumnBy($scope.columns, columnName, -1);
    };

    $scope.moveRight = function(columnName) {
      WorkPackagesTableHelper.moveColumnBy($scope.columns, columnName, 1);
    };

    $scope.hideColumn = function(columnName) {
      ColumnContextMenu.close();
      QueryService.hideColumns(new Array(columnName));
    };

    $scope.insertColumns = function() {
      columnsModal.activate();
    };

    $scope.canSort = function() {
      return $scope.column && !!$scope.column.sortable;
    };

    function isValidColumn(column) {
      return column && column.name !== 'id';
    }

    $scope.canMoveLeft = function() {
      return isValidColumn($scope.column) && $scope.columns.indexOf($scope.column) !== 0;
    };

    $scope.canMoveRight = function() {
      return isValidColumn($scope.column) && $scope.columns.indexOf($scope.column) !== $scope.columns.length - 1;
    };

    $scope.canBeHidden = function() {
      return isValidColumn($scope.column);
    };

    $scope.focusFeature = function(feature) {
      var focus;
      var mergeOrReturn = function(currentState, state) {
        return ((currentState === undefined) ? state : currentState && !state);
      };

      switch (feature) {
        case 'insert': focus = mergeOrReturn(focus, true);
        case 'hide': focus = mergeOrReturn(focus, $scope.canBeHidden());
        case 'moveRight': focus = mergeOrReturn(focus, $scope.canMoveRight());
        case 'moveLeft': focus = mergeOrReturn(focus, $scope.canMoveLeft());
        case 'group': focus = mergeOrReturn(focus, !!$scope.isGroupable);
        default: focus = mergeOrReturn(focus, $scope.canSort());
      }

      return focus;
    };
};