//-- copyright
// OpenProject is a project management system.
// Copyright (C) 2012-2015 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,
           WorkPackagesOverviewService,
           WorkPackageFieldService
           ) {

  var vm = this;

  vm.groupedFields = [];
  vm.hideEmptyFields = true;
  vm.workPackage = $scope.workPackage;

  vm.isGroupEmpty = isGroupEmpty;
  vm.isFieldEmpty = isFieldEmpty;
  vm.getLabel = getLabel;
  vm.isSpecified = isSpecified;
  vm.showToggleButton = showToggleButton;

  activate();

  function activate() {

    $scope.$watch('workPackage.schema', function(schema) {
      if (schema) {
        vm.workPackage = $scope.workPackage;
      }
    });

    vm.groupedFields = WorkPackagesOverviewService.getGroupedWorkPackageOverviewAttributes();
    var otherGroup = _.find(vm.groupedFields, {groupName: 'other'});
    _.forEach(vm.workPackage.schema.props, function(prop, propName) {
      if (propName.match(/^customField/)) {
        otherGroup.attributes.push(propName);
      }
    });
    otherGroup.attributes.sort(function(a, b) {
      return getLabel(a).toLowerCase().localeCompare(getLabel(b).toLowerCase());
    });
  }

  function isGroupEmpty(groupName) {
    var group = _.find(vm.groupedFields, {groupName: groupName});
    return _.every(group.attributes, isFieldEmpty);
  }

  function isFieldEmpty(field) {
    return WorkPackageFieldService.isEmpty(vm.workPackage, field);
  }

  function isSpecified(field) {
    return WorkPackageFieldService.isSpecified(vm.workPackage, field);
  }

  function getLabel(field) {
    return WorkPackageFieldService.getLabel(vm.workPackage, field);
  }

  function showToggleButton() {
    return true;
  }
};