/*
 *
 * (c) Copyright Ascensio System Limited 2010-2016
 *
 * 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 Lubanas st. 125a-25, Riga, Latvia,
 * EU, LV-1021.
 *
 * 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
 *
*/
/**
 *  ChartSettings.js
 *
 *  Created by Julia Radzhabova on 4/11/14
 *  Copyright (c) 2014 Ascensio System SIA. All rights reserved.
 *
 */

define([
    'text!presentationeditor/main/app/template/ChartSettings.template',
    'jquery',
    'underscore',
    'backbone',
    'common/main/lib/component/Button'
], function (menuTemplate, $, _, Backbone) {
    'use strict';

    PE.Views.ChartSettings = Backbone.View.extend(_.extend({
        el: '#id-chart-settings',

        // Compile our stats template
        template: _.template(menuTemplate),

        // Delegated events for creating new items, and clearing completed ones.
        events: {
        },

        options: {
            alias: 'ChartSettings'
        },

        initialize: function () {
            this._initSettings = true;

            this._state = {
                Width: 0,
                Height: 0,
                ChartStyle: 1,
                ChartType: -1,
                SeveralCharts: false,
                DisabledControls: false,
                keepRatio: false
            };
            this._nRatio = 1;
            this.spinners = [];
            this.lockedControls = [];
            this._locked = false;

            this._noApply = false;
            this._originalProps = null;

            this.render();
        },

        render: function () {
            var el = $(this.el);
            el.html(this.template({
                scope: this
            }));
        },

        setApi: function(api) {
            this.api = api;
            if (this.api) {
                this.api.asc_registerCallback('asc_onUpdateChartStyles', _.bind(this._onUpdateChartStyles, this));
            }
            return this;
        },

        ChangeSettings: function(props) {
            if (this._initSettings)
                this.createDelayedElements();

            this.disableControls(this._locked);

            if (props){
                this._originalProps = new Asc.CAscChartProp(props);
                this._noApply = true;

                var value = props.get_SeveralCharts() || this._locked;
                if (this._state.SeveralCharts!==value) {
                    this.btnEditData.setDisabled(value);
                    this._state.SeveralCharts=value;
                }

                value = props.get_SeveralChartTypes();
                if (this._state.SeveralCharts && value) {
                    this.btnChartType.setIconCls('');
                    this._state.ChartType = null;
                } else {
                    var type = props.getType();
                    if (this._state.ChartType !== type) {
                        var record = this.mnuChartTypePicker.store.findWhere({type: type});
                        this.mnuChartTypePicker.selectRecord(record, true);
                        if (record) {
                            this.btnChartType.setIconCls('item-chartlist ' + record.get('iconCls'));
                        }
                        this.updateChartStyles(this.api.asc_getChartPreviews(type));
                        this._state.ChartType = type;
                    }
                }

                value = props.get_SeveralChartStyles();
                if (this._state.SeveralCharts && value) {
                    var btnIconEl = this.btnChartStyle.cmpEl.find('span.btn-icon');
                    btnIconEl.css('background-image', 'none');
                    this.mnuChartStylePicker.selectRecord(null, true);
                    this._state.ChartStyle = null;
                } else {
                    value = props.getStyle();
                    if (this._state.ChartStyle!==value) {
                        var record = this.mnuChartStylePicker.store.findWhere({data: value});
                        this.mnuChartStylePicker.selectRecord(record, true);
                        if (record) {
                            var btnIconEl = this.btnChartStyle.cmpEl.find('span.btn-icon');
                            btnIconEl.css('background-image', 'url(' + record.get('imageUrl') + ')');
                        }
                        this._state.ChartStyle=value;
                    }
                }

                this._noApply = false;

                value = props.get_Width();
                if ( Math.abs(this._state.Width-value)>0.001 ||
                    (this._state.Width===null || value===null)&&(this._state.Width!==value)) {
                    this.spnWidth.setValue((value!==null) ? Common.Utils.Metric.fnRecalcFromMM(value) : '', true);
                    this._state.Width = value;
                }

                value = props.get_Height();
                if ( Math.abs(this._state.Height-value)>0.001 ||
                    (this._state.Height===null || value===null)&&(this._state.Height!==value)) {
                    this.spnHeight.setValue((value!==null) ? Common.Utils.Metric.fnRecalcFromMM(value) : '', true);
                    this._state.Height = value;
                }

                if (props.get_Height()>0)
                    this._nRatio = props.get_Width()/props.get_Height();

                value = props.asc_getLockAspect();
                if (this._state.keepRatio!==value) {
                    this.btnRatio.toggle(value);
                    this._state.keepRatio=value;
                }
            }
        },

        updateMetricUnit: function() {
            if (this.spinners) {
                for (var i=0; i<this.spinners.length; i++) {
                    var spinner = this.spinners[i];
                    spinner.setDefaultUnit(Common.Utils.Metric.getCurrentMetricName());
                    spinner.setStep(Common.Utils.Metric.getCurrentMetric()==Common.Utils.Metric.c_MetricUnits.pt ? 1 : 0.1);
                }
            }
        },

        createDelayedControls: function() {
            var me = this;
            this.btnChartType = new Common.UI.Button({
                cls         : 'btn-large-dataview',
                iconCls     : 'item-chartlist bar-normal',
                menu        : new Common.UI.Menu({
                    style: 'width: 560px;',
                    items: [
                        { template: _.template('<div id="id-chart-menu-type" class="menu-insertchart"  style="margin: 5px 5px 5px 10px;"></div>') }
                    ]
                })
            });
            this.btnChartType.on('render:after', function(btn) {
                me.mnuChartTypePicker = new Common.UI.DataView({
                    el: $('#id-chart-menu-type'),
                    parentMenu: btn.menu,
                    restoreHeight: 411,
                    groups: new Common.UI.DataViewGroupStore([
                        { id: 'menu-chart-group-bar',     caption: me.textColumn },
                        { id: 'menu-chart-group-line',    caption: me.textLine },
                        { id: 'menu-chart-group-pie',     caption: me.textPie },
                        { id: 'menu-chart-group-hbar',    caption: me.textBar },
                        { id: 'menu-chart-group-area',    caption: me.textArea },
                        { id: 'menu-chart-group-scatter', caption: me.textPoint },
                        { id: 'menu-chart-group-stock',   caption: me.textStock }
                    ]),
                    store: new Common.UI.DataViewStore([
                        { group: 'menu-chart-group-bar',     type: Asc.c_oAscChartTypeSettings.barNormal,          iconCls: 'column-normal', selected: true},
                        { group: 'menu-chart-group-bar',     type: Asc.c_oAscChartTypeSettings.barStacked,         iconCls: 'column-stack'},
                        { group: 'menu-chart-group-bar',     type: Asc.c_oAscChartTypeSettings.barStackedPer,      iconCls: 'column-pstack'},
                        { group: 'menu-chart-group-bar',     type: Asc.c_oAscChartTypeSettings.barNormal3d,        iconCls: 'column-3d-normal'},
                        { group: 'menu-chart-group-bar',     type: Asc.c_oAscChartTypeSettings.barStacked3d,       iconCls: 'column-3d-stack'},
                        { group: 'menu-chart-group-bar',     type: Asc.c_oAscChartTypeSettings.barStackedPer3d,    iconCls: 'column-3d-pstack'},
                        { group: 'menu-chart-group-bar',     type: Asc.c_oAscChartTypeSettings.barNormal3dPerspective,    iconCls: 'column-3d-normal-per'},
                        { group: 'menu-chart-group-line',    type: Asc.c_oAscChartTypeSettings.lineNormal,         iconCls: 'line-normal'},
                        { group: 'menu-chart-group-line',    type: Asc.c_oAscChartTypeSettings.lineStacked,        iconCls: 'line-stack'},
                        { group: 'menu-chart-group-line',    type: Asc.c_oAscChartTypeSettings.lineStackedPer,     iconCls: 'line-pstack'},
                        { group: 'menu-chart-group-line',    type: Asc.c_oAscChartTypeSettings.line3d,             iconCls: 'line-3d'},
                        { group: 'menu-chart-group-pie',     type: Asc.c_oAscChartTypeSettings.pie,                iconCls: 'pie-normal'},
                        { group: 'menu-chart-group-pie',     type: Asc.c_oAscChartTypeSettings.doughnut,           iconCls: 'pie-doughnut'},
                        { group: 'menu-chart-group-pie',     type: Asc.c_oAscChartTypeSettings.pie3d,              iconCls: 'pie-3d-normal'},
                        { group: 'menu-chart-group-hbar',    type: Asc.c_oAscChartTypeSettings.hBarNormal,         iconCls: 'bar-normal'},
                        { group: 'menu-chart-group-hbar',    type: Asc.c_oAscChartTypeSettings.hBarStacked,        iconCls: 'bar-stack'},
                        { group: 'menu-chart-group-hbar',    type: Asc.c_oAscChartTypeSettings.hBarStackedPer,     iconCls: 'bar-pstack'},
                        { group: 'menu-chart-group-hbar',    type: Asc.c_oAscChartTypeSettings.hBarNormal3d,       iconCls: 'bar-3d-normal'},
                        { group: 'menu-chart-group-hbar',    type: Asc.c_oAscChartTypeSettings.hBarStacked3d,      iconCls: 'bar-3d-stack'},
                        { group: 'menu-chart-group-hbar',    type: Asc.c_oAscChartTypeSettings.hBarStackedPer3d,   iconCls: 'bar-3d-pstack'},
                        { group: 'menu-chart-group-area',    type: Asc.c_oAscChartTypeSettings.areaNormal,         iconCls: 'area-normal'},
                        { group: 'menu-chart-group-area',    type: Asc.c_oAscChartTypeSettings.areaStacked,        iconCls: 'area-stack'},
                        { group: 'menu-chart-group-area',    type: Asc.c_oAscChartTypeSettings.areaStackedPer,     iconCls: 'area-pstack'},
                        { group: 'menu-chart-group-scatter', type: Asc.c_oAscChartTypeSettings.scatter,            iconCls: 'point-normal'},
                        { group: 'menu-chart-group-stock',   type: Asc.c_oAscChartTypeSettings.stock,              iconCls: 'stock-normal'}
                    ]),
                    itemTemplate: _.template('<div id="<%= id %>" class="item-chartlist <%= iconCls %>"></div>')
                });
            });
            this.btnChartType.render($('#chart-button-type'));
            this.mnuChartTypePicker.on('item:click', _.bind(this.onSelectType, this, this.btnChartType));
            this.lockedControls.push(this.btnChartType);

            this.btnEditData = new Common.UI.Button({
                el: $('#chart-button-edit-data')
            });
            this.btnEditData.on('click', _.bind(this.setEditData, this));
            this.lockedControls.push(this.btnEditData);

            this.spnWidth = new Common.UI.MetricSpinner({
                el: $('#chart-spin-width'),
                step: .1,
                width: 78,
                defaultUnit : "cm",
                value: '3 cm',
                maxValue: 55.88,
                minValue: 0
            });
            this.spinners.push(this.spnWidth);
            this.lockedControls.push(this.spnWidth);

            this.spnHeight = new Common.UI.MetricSpinner({
                el: $('#chart-spin-height'),
                step: .1,
                width: 78,
                defaultUnit : "cm",
                value: '3 cm',
                maxValue: 55.88,
                minValue: 0
            });
            this.spinners.push(this.spnHeight);
            this.lockedControls.push(this.spnHeight);

            this.spnWidth.on('change', _.bind(this.onWidthChange, this));
            this.spnHeight.on('change', _.bind(this.onHeightChange, this));

            this.btnRatio = new Common.UI.Button({
                cls: 'btn-toolbar',
                iconCls: 'advanced-btn-ratio',
                style: 'margin-bottom: 1px;',
                enableToggle: true,
                hint: this.textKeepRatio
            });
            this.btnRatio.render($('#chart-button-ratio')) ;
            this.lockedControls.push(this.btnRatio);

            this.btnRatio.on('click', _.bind(function(btn, e) {
                if (btn.pressed && this.spnHeight.getNumberValue()>0) {
                    this._nRatio = this.spnWidth.getNumberValue()/this.spnHeight.getNumberValue();
                }
                if (this.api)  {
                    var props = new Asc.CAscChartProp();
                    props.asc_putLockAspect(btn.pressed);
                    this.api.ChartApply(props);
                }
                this.fireEvent('editcomplete', this);
            }, this));

        },

        createDelayedElements: function() {
            this.createDelayedControls();
            this.updateMetricUnit();
            this._initSettings = false;
        },

        setEditData:   function() {
            var diagramEditor = PE.getController('Common.Controllers.ExternalDiagramEditor').getView('Common.Views.ExternalDiagramEditor');
            if (diagramEditor) {
                diagramEditor.setEditMode(true);
                diagramEditor.show();

                var chart = this.api.asc_getChartObject();
                if (chart) {
                    diagramEditor.setChartData(new Asc.asc_CChartBinary(chart));
                }
            }
        },

        onSelectType: function(btn, picker, itemView, record) {
            if (this._noApply) return;

            var rawData = {},
                isPickerSelect = _.isFunction(record.toJSON);

            if (isPickerSelect){
                if (record.get('selected')) {
                    rawData = record.toJSON();
                } else {
                    // record deselected
                    return;
                }
            } else {
                rawData = record;
            }

            this.btnChartType.setIconCls('item-chartlist ' + rawData.iconCls);
            this._state.ChartType = -1;

            if (this.api && !this._noApply) {
                var props = new Asc.CAscChartProp();
                props.changeType(rawData.type);
                this.api.ChartApply(props);
            }
            this.fireEvent('editcomplete', this);
        },

        onSelectStyle: function(btn, picker, itemView, record) {
            if (this._noApply) return;

            var rawData = {},
                isPickerSelect = _.isFunction(record.toJSON);

            if (isPickerSelect){
                if (record.get('selected')) {
                    rawData = record.toJSON();
                } else {
                    // record deselected
                    return;
                }
            } else {
                rawData = record;
            }

            var style = 'url(' + rawData.imageUrl + ')';
            var btnIconEl = this.btnChartStyle.cmpEl.find('span.btn-icon');
            btnIconEl.css('background-image', style);

            if (this.api && !this._noApply) {
                var props = new Asc.CAscChartProp();
                props.putStyle(rawData.data);
                this.api.ChartApply(props);
            }

            this.fireEvent('editcomplete', this);
        },

        _onUpdateChartStyles: function() {
            if (this.api && this._state.ChartType!==null && this._state.ChartType>-1)
                this.updateChartStyles(this.api.asc_getChartPreviews(this._state.ChartType));
        },

        updateChartStyles: function(styles) {
            var me = this;

            if (!this.btnChartStyle) {
                this.btnChartStyle = new Common.UI.Button({
                    cls         : 'btn-large-dataview',
                    iconCls     : 'item-wrap',
                    menu        : new Common.UI.Menu({
                        menuAlign: 'tr-br',
                        items: [
                            { template: _.template('<div id="id-chart-menu-style" style="width: 245px; margin: 0 5px;"></div>') }
                        ]
                    })
                });
                this.btnChartStyle.render($('#chart-button-style'));
                this.lockedControls.push(this.btnChartStyle);
                this.mnuChartStylePicker = new Common.UI.DataView({
                    el: $('#id-chart-menu-style'),
                    style: 'max-height: 411px;',
                    parentMenu: this.btnChartStyle.menu,
                    store: new Common.UI.DataViewStore(),
                    itemTemplate: _.template('<div id="<%= id %>" class="item-wrap" style="background-image: url(<%= imageUrl %>); background-position: 0 0;"></div>')
                });

                if (this.btnChartStyle.menu) {
                    this.btnChartStyle.menu.on('show:after', function () {
                        me.mnuChartStylePicker.scroller.update({alwaysVisibleY: true});
                    });
                }
                this.mnuChartStylePicker.on('item:click', _.bind(this.onSelectStyle, this, this.btnChartStyle));
            }
            
            if (styles && styles.length>0){
                var stylesStore = this.mnuChartStylePicker.store;
                if (stylesStore) {
                    var stylearray = [],
                        selectedIdx = -1,
                        selectedUrl;
                    _.each(styles, function(item, index){
                        stylearray.push({
                            imageUrl: item.asc_getImageUrl(),
                            data    : item.asc_getStyle(),
                            tip     : me.textStyle + ' ' + item.asc_getStyle()
                        });
                        if (me._state.ChartStyle == item.asc_getStyle()) {
                            selectedIdx = index;
                            selectedUrl = item.asc_getImageUrl();
                        }

                    });

                    stylesStore.reset(stylearray, {silent: false});
                }
            }
            this.mnuChartStylePicker.selectByIndex(selectedIdx, true);
            if (selectedIdx>=0 && this.btnChartStyle.cmpEl) {
                var style = 'url(' + selectedUrl + ')';
                var btnIconEl = this.btnChartStyle.cmpEl.find('span.btn-icon');
                btnIconEl.css('background-image', style);
            }
        },

        onWidthChange: function(field, newValue, oldValue, eOpts){
            var w = field.getNumberValue();
            var h = this.spnHeight.getNumberValue();
            if (this.btnRatio.pressed) {
                h = w/this._nRatio;
                if (h>this.spnHeight.options.maxValue) {
                    h = this.spnHeight.options.maxValue;
                    w = h * this._nRatio;
                    this.spnWidth.setValue(w, true);
                }
                this.spnHeight.setValue(h, true);
            }
            if (this.api)  {
                var props = new Asc.CAscChartProp();
                props.put_Width(Common.Utils.Metric.fnRecalcToMM(w));
                props.put_Height(Common.Utils.Metric.fnRecalcToMM(h));
                this.api.ChartApply(props);
            }

            this.fireEvent('editcomplete', this);
        },

        onHeightChange: function(field, newValue, oldValue, eOpts){
            var h = field.getNumberValue(), w = this.spnWidth.getNumberValue();
            if (this.btnRatio.pressed) {
                w = h * this._nRatio;
                if (w>this.spnWidth.options.maxValue) {
                    w = this.spnWidth.options.maxValue;
                    h = w/this._nRatio;
                    this.spnHeight.setValue(h, true);
                }
                this.spnWidth.setValue(w, true);
            }
            if (this.api)  {
                var props = new Asc.CAscChartProp();
                props.put_Width(Common.Utils.Metric.fnRecalcToMM(w));
                props.put_Height(Common.Utils.Metric.fnRecalcToMM(h));
                this.api.ChartApply(props);
            }

            this.fireEvent('editcomplete', this);
        },

        setLocked: function (locked) {
            this._locked = locked;
        },

        disableControls: function(disable) {
            if (this._initSettings) return;
            
            if (this._state.DisabledControls!==disable) {
                this._state.DisabledControls = disable;
                _.each(this.lockedControls, function(item) {
                    item.setDisabled(disable);
                });
            }
        },

        textKeepRatio: 'Constant Proportions',
        textSize:       'Size',
        textWidth:      'Width',
        textHeight:     'Height',
        textEditData: 'Edit Data',
        textChartType: 'Change Chart Type',
        textLine:           'Line Chart',
        textColumn:         'Column Chart',
        textBar:            'Bar Chart',
        textArea:           'Area Chart',
        textPie:            'Pie Chart',
        textPoint:          'XY (Scatter) Chart',
        textStock:          'Stock Chart',
        textStyle:          'Style'
    }, PE.Views.ChartSettings || {}));
});