// -- 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.
// ++

angular
  .module('openproject.workPackages.services')
  .factory('EditableFieldsState', EditableFieldsState);

function EditableFieldsState(inplaceEditErrors, inplaceEditAll) {
  var EditableFieldsState;

  return EditableFieldsState = {
    workPackage: null,
    errors: inplaceEditErrors.errors,
    isBusy: false,
    currentField: null,
    focusField: 'subject',

    isFocusField: function (field) {
      return EditableFieldsState.focusField === field;
    },

    isActiveField: function (field) {
      return !inplaceEditAll.state && EditableFieldsState.currentField === field;
    },

    getPendingFormChanges: function () {
      var form = EditableFieldsState.workPackage.form;
      return form.pendingChanges = form.pendingChanges || angular.copy(form.embedded.payload.props);
    },

    discard: function (fieldName) {
      delete EditableFieldsState.getPendingFormChanges()[fieldName];

      if (inplaceEditErrors.errors && inplaceEditErrors.hasOwnProperty(fieldName)) {
        delete inplaceEditErrors.errors[fieldName];
      }
    },

    get canEdit() {
      return EditableFieldsState.workPackage && !!EditableFieldsState.workPackage.links.update;
    }
  };
}