/**
 * Contains error dialog class
 *
 *  Copyright (C) 2017 LoVullo Associates, Inc.
 *
 *  This file is part of the Liza Data Collection Framework.
 *
 *  liza 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 3 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, see <http://www.gnu.org/licenses/>.
 */

var Class           = require( 'easejs' ).Class,
    DialogDecorator = require( './DialogDecorator' );


/**
 * Provides logical defaults for the dirty dialog
 */
module.exports = Class( 'DirtyDialog' )
    .extend( DialogDecorator,
{
    /**
     * Save button callback
     * @type {function()}
     */
    'private _saveCallback': function() {},

    /**
     * Discard button callback
     * @type {function()}
     */
    'private _discardCallback': function() {},


    /**
     * Initializes dialog defaults
     *
     * @return {undefined}
     */
    'protected init': function()
    {
        var _self = this;

        // set defaults
        this.getDialog()
            .setHtml(
                '<p>Changes have been made to this step. Would you like ' +
                    'to:</p>' +
                '<ul>' +
                    '<li><strong>Save Changes</strong> - ' +
                        'Save the changes that you made and continue' +
                    '</li>' +
                    '<li><strong>Discard Changes</strong> - ' +
                        'Undo the changes since the last time you ' +
                        'visited this step and continue' +
                    '</li>' +
                    '<li><strong>Cancel</strong> - ' +
                        'Stay on the current step and continue working' +
                    '</li>' +
                '</ul>'
            )
            .setResizable( false )
            .setSize( { x: 350 } )
            .setModal()
            .setTitle( 'You have made changes to this step' )
            .setButtons( {
                'Save Changes': function()
                {
                    this.close();
                    _self._saveCallback();
                },

                'Discard Changes': function()
                {
                    this.close();
                    _self._discardCallback();
                },

                'Cancel': function()
                {
                    this.close();
                }
            } );
    },


    /**
     * Callback when save button is clicked
     *
     * @param {function()} callback save button callback
     *
     * @return {DirtyDialog} self
     */
    'public onSave': function( callback )
    {
        this._saveCallback = callback || function() {};
        return this;
    },


    /**
     * Callback when discard button is clicked
     *
     * @param {function()} callback discard button callback
     *
     * @return {DirtyDialog} self
     */
    'public onDiscard': function( callback )
    {
        this._discardCallback = callback || function() {};
        return this;
    }
} );