/*
 *
 * (c) Copyright Ascensio System SIA 2010-2020
 *
 * This program is a free software product. You can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License (AGPL)
 * version 3 as published by the Free Software Foundation. In accordance with
 * Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
 * that Ascensio System SIA expressly excludes the warranty of non-infringement
 * of any third-party rights.
 *
 * This program is distributed WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE. For
 * details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
 *
 * You can contact Ascensio System SIA at 20A-12 Ernesta Birznieka-Upisha
 * street, Riga, Latvia, EU, LV-1050.
 *
 * The  interactive user interfaces in modified source and object code versions
 * of the Program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU AGPL version 3.
 *
 * Pursuant to Section 7(b) of the License you must retain the original Product
 * logo when distributing the program. Pursuant to Section 7(e) we decline to
 * grant you any rights under trademark law for use of our trademarks.
 *
 * All the Product's GUI elements, including illustrations and icon sets, as
 * well as technical writing content are licensed under the terms of the
 * Creative Commons Attribution-ShareAlike 4.0 International. See the License
 * terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
 *
 */
/**
 *  RemoveDuplicatesDialog.js
 *
 *  Created by Julia Radzhabova on 07.04.2020
 *  Copyright (c) 2020 Ascensio System SIA. All rights reserved.
 *
 */

define([
    'common/main/lib/component/Window',
    'common/main/lib/component/CheckBox',
    'common/main/lib/component/ListView'
], function () {
    'use strict';

    SSE.Views.RemoveDuplicatesDialog = Common.UI.Window.extend(_.extend({
        options: {
            width: 350,
            style: 'min-width: 230px;',
            cls: 'modal-dlg',
            buttons: ['ok', 'cancel']
        },

        initialize : function (options) {
            var t = this,
                _options = {};

            _.extend(this.options, {
                title: this.txtTitle
            }, options || {});

            this.template = [
                '<div class="box" style="height: 260px;">',
                    '<div style="margin-bottom: 16px;">',
                        '<label>' + this.textDescription + '</label>',
                    '</div>',
                    '<div class="input-row">',
                        '<div id="rem-duplicates-dlg-headers"></div>',
                    '</div>',
                    '<div class="input-row">',
                        '<label style="font-weight: bold;">' + this.textColumns + '</label>',
                    '</div>',
                    '<div id="rem-duplicates-dlg-columns" class="" style="width: 100%; height: 162px; overflow: hidden;"></div>',
                '</div>'
            ].join('');

            this.options.tpl = _.template(this.template)(this.options);
            this.api = this.options.api;
            this.props = this.options.props;
            this.handler =   this.options.handler;

            Common.UI.Window.prototype.initialize.call(this, this.options);
        },
        render: function () {
            Common.UI.Window.prototype.render.call(this);

            this.chHeaders = new Common.UI.CheckBox({
                el: $('#rem-duplicates-dlg-headers'),
                labelText: this.textHeaders
            });
            this.chHeaders.on('change', _.bind(function(field, newValue, oldValue, eOpts){
                this.props.asc_setHasHeaders(field.getValue()=='checked');
                this.props.asc_updateColumnList();
                this.updateColumnsList();
            }, this));

            this.columnsList = new Common.UI.ListView({
                el: $('#rem-duplicates-dlg-columns', this.$window),
                store: new Common.UI.DataViewStore(),
                simpleAddMode: true,
                scrollAlwaysVisible: true,
                template: _.template(['<div class="listview inner" style=""></div>'].join('')),
                itemTemplate: _.template([
                    '<div>',
                        '<label class="checkbox-indeterminate" style="position:absolute;">',
                            '<input id="rdcheckbox-<%= id %>" type="checkbox" class="button__checkbox">',
                            '<label for="rdcheckbox-<%= id %>" class="checkbox__shape"></label>',
                        '</label>',
                        '<div id="<%= id %>" class="list-item" style="pointer-events:none; margin-left: 20px;display: flex;">',
                            '<div style="flex-grow: 1;"><%= Common.Utils.String.htmlEncode(value) %></div>',
                        '</div>',
                    '</div>'
                ].join(''))
            });
            this.columnsList.on({
                'item:change': this.onItemChanged.bind(this),
                'item:add': this.onItemChanged.bind(this),
                'item:select': this.onCellCheck.bind(this)
            });
            this.columnsList.onKeyDown = _.bind(this.onListKeyDown, this);
            this.columnsList.on('entervalue', _.bind(this.onPrimary, this));
            this.$window.find('.dlg-btn').on('click', _.bind(this.onBtnClick, this));
            this.afterRender();
        },

        updateColumnsList: function() {
            var selectAllState = false,
                selectedCells = 0,
                arr = [],
                store = this.columnsList.store;

            if (store.length<1) {
                this.props.asc_getColumnList().forEach(function (item, index) {
                    var visible = item.asc_getVisible();
                    arr.push(new Common.UI.DataViewModel({
                        id              : index,
                        selected        : false,
                        allowSelected   : true,
                        value           : item.asc_getVal(),
                        groupid         : '1',
                        check           : visible
                    }));
                    if (visible) selectedCells++;
                });

                if (selectedCells==arr.length) selectAllState = true;
                else if (selectedCells>0) selectAllState = 'indeterminate';

                if (arr.length>0)
                    arr.unshift(new Common.UI.DataViewModel({
                        id              : arr.length,
                        selected        : false,
                        allowSelected   : true,
                        value           : this.textSelectAll,
                        groupid         : '0',
                        check           : selectAllState,
                        throughIndex    : 0
                    }));
                this.columnsList.store.reset(arr);
                this.columnsList.scroller.update({minScrollbarLength  : 40, alwaysVisibleY: true, suppressScrollX: true});
            } else {
                this.props.asc_getColumnList().forEach(function (item, index) {
                    store.at(index+1).set('value', item.asc_getVal());
                });
            }
        },

        onItemChanged: function (view, record) {
            var state = record.model.get('check');
            if ( state == 'indeterminate' )
                $('input[type=checkbox]', record.$el).prop('indeterminate', true);
            else $('input[type=checkbox]', record.$el).prop({checked: state, indeterminate: false});
        },

        onCellCheck: function (listView, itemView, record) {
            if (this.checkCellTrigerBlock)
                return;

            var target = '', isLabel = false, bound = null;

            var event = window.event ? window.event : window._event;
            if (event) {
                target = $(event.currentTarget).find('.list-item');

                if (target.length) {
                    bound = target.get(0).getBoundingClientRect();
                    var _clientX = event.clientX*Common.Utils.zoom(),
                        _clientY = event.clientY*Common.Utils.zoom();
                    if (bound.left < _clientX && _clientX < bound.right &&
                        bound.top < _clientY && _clientY < bound.bottom) {
                        isLabel = true;
                    }
                }

                if (isLabel || event.target.className.match('checkbox')) {
                    this.updateCellCheck(listView, record);

                    _.delay(function () {
                        listView.focus();
                    }, 100, this);
                }
            }
        },

        onListKeyDown: function (e, data) {
            var record = null, listView = this.columnsList;

            if (listView.disabled) return;
            if (_.isUndefined(undefined)) data = e;

            if (data.keyCode == Common.UI.Keys.SPACE) {
                data.preventDefault();
                data.stopPropagation();

                this.updateCellCheck(listView, listView.getSelectedRec());

            } else {
                Common.UI.DataView.prototype.onKeyDown.call(this.columnsList, e, data);
            }
        },

        updateCellCheck: function (listView, record) {
            if (record && listView) {
                var store = listView.store,
                    check = !record.get('check'),
                    me = this;
                if ('0' == record.get('groupid')) {
                    store.each(function(cell) {
                        cell.set('check', check);
                    });
                } else {
                    record.set('check', check);
                    var selectAllState = check;
                    for (var i=0; i< store.length; i++) {
                        var cell = store.at(i);
                        if ('1' == cell.get('groupid') && cell.get('check') !== check) {
                            selectAllState = 'indeterminate';
                            break;
                        }
                    }
                    this.checkCellTrigerBlock = true;
                    store.at(0).set('check', selectAllState);
                    this.checkCellTrigerBlock = undefined;
                }

                listView.scroller.update({minScrollbarLength  : 40, alwaysVisibleY: true, suppressScrollX: true});
            }
        },

        afterRender: function() {
            this._setDefaults(this.props);
        },

        _setDefaults: function (props) {
            if (props) {
                this.chHeaders.setValue(!!props.asc_getHasHeaders(), true);
                this.updateColumnsList();
            }
            var me = this;
            _.delay(function () {
                me.columnsList.focus();
            }, 100, this);
        },

        getSettings: function () {
            var store = this.columnsList.store,
                props = this.props.asc_getColumnList();
            store.each(function(item, index) {
                if ('1' == item.get('groupid')) {
                    props[index-1].asc_setVisible(item.get('check'));
                }
            });
            return this.props;
        },

        onBtnClick: function(event) {
            this._handleInput(event.currentTarget.attributes['result'].value);
        },

        onDblClickFormat: function () {
            this._handleInput('ok');
        },

        onPrimary: function(event) {
            this._handleInput('ok');
            return false;
        },

        _handleInput: function(state) {
            if (this.options.handler) {
                this.options.handler.call(this, state, (state == 'ok') ? this.getSettings() : this.props);
            }

            this.close();
        },

        //
        txtTitle: 'Remove Duplicates',
        textDescription: 'To delete duplicate values, select one or more columns that contain duplicates.',
        textHeaders: 'My data has headers',
        textColumns: 'Columns',
        textSelectAll: 'Select All'
        
    }, SSE.Views.RemoveDuplicatesDialog || {}));
});