Ext.namespace("Zarafa.plugins.calendarimporter.dialogs"); 

/**
 * @class Zarafa.plugins.calendarimporter.dialogs.ImportPanel
 * @extends Ext.form.FormPanel
 */
Zarafa.plugins.calendarimporter.dialogs.ImportPanel = Ext.extend(Ext.Panel, {

	/* store the imported timezone here... */
	timezone: null,

	/**
	 * @constructor
	 * @param {object} config
	 */
	constructor : function (config) 
	{
		config = config || {};
		var self = this;
		Ext.apply(config, {
			xtype     : 'calendarimporter.importpanel',
			layout    : {
				type  : 'form',
				align : 'stretch'
			},
			anchor      : '100%',
			bodyStyle : 'background-color: inherit;',
			defaults  : {
				border      : true,
				bodyStyle   : 'background-color: inherit; padding: 3px 0px 3px 0px; border-style: none none solid none;'
			},
			items : [
				this.createSelectBox(),
				this.initForm()
			],
			buttons: [
				this.createExportAllButton(),
				this.createSubmitAllButton(),
				this.createSubmitButton(),
				this.createCancelButton()
			]
		});

		Zarafa.plugins.calendarimporter.dialogs.ImportPanel.superclass.constructor.call(this, config);
	},

	/**
	 * Init embedded form, this is the form that is
	 * posted and contains the attachments
	 * @private
	 */
	initForm : function ()
	{
		return {
			xtype: 'form',
			ref: 'addFormPanel',
			layout : 'column',
			fileUpload: true,
			autoWidth: true,
			autoHeight: true,
			border: false,
			bodyStyle: 'padding: 5px;',
			defaults: {
				anchor: '95%',
				border: false,
				bodyStyle: 'padding: 5px;'
			},
			items: [this.createUploadField()]
		};
	},

	/**
	 * Init embedded form, this is the form that is
	 * posted and contains the attachments
	 * @private
	 */
	createGrid : function(eventdata) {

		var parsedData = [];
		if(eventdata !== null) {
			var parsedData = new Array(eventdata.events.length);
			
			for(var i=0; i < eventdata.events.length; i++) {
				parsedData[i] = new Array(eventdata.events[i]["SUMMARY"], new Date(parseInt(eventdata.events[i]["DTSTART"])), new Date(parseInt(eventdata.events[i]["DTEND"])), eventdata.events[i]["LOCATION"], eventdata.events[i]["DESCRIPTION"]);
			}
		}

		// create the data store
		var store = new Ext.data.ArrayStore({
			fields: [
			   {name: 'title'},
			   {name: 'start'},
			   {name: 'end'},
			   {name: 'location'},
			   {name: 'description'}
			],
			data: parsedData
		});

		return {
			xtype: 'grid',
			ref: 'eventgrid',
			id: 'eventgrid',
			columnWidth: 1.0,
			store: store,
			width: '100%',
			height: 300,
			title: 'Select events to import',
			frame: true,
			colModel: new Ext.grid.ColumnModel({
				defaults: {
					width: 300,
					sortable: true
				},
				columns: [
					{id: 'Summary', header: 'Title', width: 300, sortable: true, dataIndex: 'title'},
					{header: 'Start', width: 150, sortable: true, dataIndex: 'start'},
					{header: 'End', width: 150, sortable: true, dataIndex: 'end'},
					{header: 'Location', width: 150, sortable: true, dataIndex: 'location'},
					{header: 'Description', width: 150, sortable: true, dataIndex: 'description'}
				]
			}),
			sm: new Ext.grid.RowSelectionModel({multiSelect:true})
		}
	},
	
	createSelectBox: function() {
		ctx = container.getContextByName('calendar');
		model = ctx.getModel();
		defaultFolder = model.getDefaultFolder(); // @type: Zarafa.hierarchy.data.MAPIFolderRecord
		subFolders = defaultFolder.getChildren();

		var myStore = new Ext.data.ArrayStore({
			fields: ['calendar_id', 'calendar_displayname'],
			idIndex: 0 // id for each record will be the first element
		});

		/* Calendar Record holds the name and real name of the calender */
		var CalendarRecord = Ext.data.Record.create([
			{name: 'realname', type: "string"},
			{name: 'displayname', type: "string"}
		]);

		/* Store the default folder */
		var myNewRecord = new CalendarRecord({
			realname: defaultFolder.getDefaultFolderKey(),
			displayname: defaultFolder.getDisplayName()
		});
		myStore.add(myNewRecord);

		for(i=0;i<subFolders.length;i++) {
			/* Store all subfolders */
			myNewRecord = new CalendarRecord({
				realname: subFolders[i].getDisplayName(), // TODO: get the real path... 
			    displayname: subFolders[i].getDisplayName()
			});
			myStore.add(myNewRecord);
		}

		/* commit the changes to the store */
		myStore.commitChanges();

		return {
			xtype: "selectbox",
			ref: 'calendarselector',
			id: 'calendarselector',  
			editable: false,
			name: "choosen_calendar",
			width: 100,
			fieldLabel: "Select a calender",
			store: myStore,
			valueField: 'realname',
			displayField: 'displayname',
			labelSeperator: ":",
			border: false,
			anchor: "100%",
			scope: this,
			allowBlank: false
		}
	},
	
	createUploadField: function() {
		return {
			xtype: "fileuploadfield",
			ref: 'fileuploadfield',
			columnWidth: 1.0,
			id: 'form-file',    
			name: 'icsdata',
			emptyText: 'Select an .ics calendar',
			border: false,
			anchor: "100%",
			scope: this,
			allowBlank: false,
			listeners: {
				'fileselected': this.onFileSelected,
				scope: this
			}
		}
	},
	
	createSubmitButton: function() {
		return {
			xtype: "button",
			ref: "submitButton",
			id: "submitButton",
			disabled: true,
			width: 100,
			border: false,
			text: _("Import"),
			anchor: "100%",
			handler: this.importCheckedEvents,
			scope: this,
			allowBlank: false
		}
	},
	
	createSubmitAllButton: function() {
		return {
			xtype: "button",
			ref: "submitAllButton",
			id: "submitAllButton",
			disabled: true,
			width: 100,
			border: false,
			text: _("Import All"),
			anchor: "100%",
			handler: this.importAllEvents,
			scope: this,
			allowBlank: false
		}
	},
	
	createExportAllButton: function() {
		return {
			xtype: "button",
			ref: "exportAllButton",
			id: "exportAllButton",
			hidden: !container.getSettingsModel().get("zarafa/v1/plugins/calendarimporter/enable_export"),
			width: 100,
			border: false,
			text: _("Export All"),
			anchor: "100%",
			handler: this.exportAllEvents,
			scope: this,
			allowBlank: false
		}
	},
	
	createCancelButton: function() {
		return {
			xtype: "button",
			width: 100,
			border: false,
			text: _("Cancel"),
			anchor: "100%",
			handler: this.close,
			scope: this,
			allowBlank: false
		}
	},
	
	/**
	 * This is called when a file has been seleceted in the file dialog
	 * in the {@link Ext.ux.form.FileUploadField} and the dialog is closed
	 * @param {Ext.ux.form.FileUploadField} uploadField being added a file to
	 */
	onFileSelected	: function(uploadField) {
		var form = this.addFormPanel.getForm();

		if (form.isValid()) {
			form.submit({
				waitMsg: 'Uploading and parsing calendar...',
				url: 'plugins/calendarimporter/php/upload.php',
				failure: function(file, action) {
					Ext.getCmp('submitButton').disable();
					Ext.getCmp('submitAllButton').disable();
					Ext.MessageBox.show({
						title   : _('Error'),
						msg     : _(action.result.errors[action.result.errors.type]),
						icon    : Ext.MessageBox.ERROR,
						buttons : Ext.MessageBox.OK
					});
				},
				success: function(file, action){
					uploadField.reset();
					Ext.getCmp('submitButton').enable();
					Ext.getCmp('submitAllButton').enable();
					this.timezone = action.result.response.calendar["X-WR-TIMEZONE"];
					this.insert(this.items.length,this.createGrid(action.result.response));
					this.doLayout();
				},
				scope : this
			});
		}
	},

	close: function () {
		this.addFormPanel.getForm().reset();
		this.dialog.close()
	},

	convertToAppointmentRecord: function (calendarFolder,entry) {
		var newRecord = Zarafa.core.data.RecordFactory.createRecordObjectByMessageClass('IPM.Appointment', {
			startdate: new Date(entry.start),
			duedate: (entry.end) ?
				new Date(entry.end) :
				new Date(entry.start).add(Date.HOUR, 1),
			location: entry.location,
			subject: entry.title,
			body: entry.description,
			commonstart: new Date(entry.start),
			commonend: (entry.end) ?
				new Date(entry.end) :
				new Date(entry.start).add(Date.HOUR, 1),
			timezone: this.timezone,
			parent_entryid: calendarFolder.get('entryid'),
			store_entryid: calendarFolder.get('store_entryid')
		});
		return newRecord;
	},

	importAllEvents: function () {
		//receive existing calendar store
		var selIndex = this.calendarselector.selectedIndex;
		var calValue = this.calendarselector.value;

		if(selIndex == -1) { // no calendar choosen
			Ext.MessageBox.show({
				title   : _('Error'),
				msg     : _('You have to choose a calendar!'),
				icon    : Ext.MessageBox.ERROR,
				buttons : Ext.MessageBox.OK
			});
		} else {

			var calendarStore = new Zarafa.calendar.AppointmentStore();
			var calendarFolder =  container.getHierarchyStore().getDefaultFolder('calendar');
			if(calValue != "calendar") {
				var subFolders = calendarFolder.getChildren();

				for(i=0;i<subFolders.length;i++) {
					// loo up right folder 
					// TODO: improve!!
					if(subFolders[i].getDisplayName() == calValue) {
						calendarFolder = subFolders[i];
						break;
					}
				}
			}

			//receive Records from grid rows
			this.eventgrid.selModel.selectAll();  // select all entries
			var newRecords = this.eventgrid.selModel.getSelections();
			Ext.each(newRecords, function(newRecord) {
				var record = this.convertToAppointmentRecord(calendarFolder,newRecord.data);
				calendarStore.add(record);
			}, this);
			calendarStore.save();
			this.dialog.close();
		}
    },
	
	exportAllEvents: function () {
		//receive existing calendar store
		var selIndex = this.calendarselector.selectedIndex;
		var calValue = this.calendarselector.value;

		if(selIndex == -1 || calValue == "") { // no calendar choosen
			Ext.MessageBox.show({
				title   : _('Error'),
				msg     : _('You have to choose a calendar!'),
				icon    : Ext.MessageBox.ERROR,
				buttons : Ext.MessageBox.OK
			});
		} else {			
			var calendarFolder =  container.getHierarchyStore().getDefaultFolder('calendar');
			if(calValue != "calendar") {
				var subFolders = calendarFolder.getChildren();

				for(i=0;i<subFolders.length;i++) {
					// loo up right folder 
					// TODO: improve!!
					if(subFolders[i].getDisplayName() == calValue) {
						calendarFolder = subFolders[i];
						break;
					}
				}
			}
			
			Zarafa.common.dialogs.MessageBox.show({
				title: 'Please wait',
				msg: 'Generating ical file...',
				progressText: 'Exporting...',
				width:300,
				progress:true,
				closable:false
			});
			
			// progress bar... ;)
			var updateProgressBar = function(v){
				return function(){
					if(v == 100){
						if(Zarafa.common.dialogs.MessageBox.isVisible()) {
							updateTimer();
						}
					}else{
						Zarafa.common.dialogs.MessageBox.updateProgress(v/100, 'Exporting...');
					}
			   };
			};
			
			var updateTimer = function() {
				for(var i = 1; i < 101; i++){
					setTimeout(updateProgressBar(i), 20*i);					
				}
			};
			
			updateTimer();
		
			// call export function here!
			var responseHandler = new Zarafa.plugins.calendarimporter.data.ResponseHandler({
				successCallback: this.exportDone.createDelegate(this)
			});
			
			container.getRequest().singleRequest(
				'appointmentlistmodule',
				'list',
				{
					groupDir: "ASC",
					restriction: {
						startdate: 0,
						duedate: 2145826800	// 2037... highest unix timestamp
					},
					sort: [{
							"field": "startdate",
							"direction": "DESC"
					}],
					store_entryid : calendarFolder.data.store_entryid,
					entryid : calendarFolder.data.entryid
				},
				responseHandler
			);
		}
    },
	
	/**
	 * Export done =)
	 * @param {Object} response
	 * @private
	 */
	exportDone : function(response)
	{
		if(response.item.length > 0) {
			// call export function here!
			var responseHandler = new Zarafa.plugins.calendarimporter.data.ResponseHandler({
				successCallback: this.downLoadICS.createDelegate(this)
			});
			
			container.getRequest().singleRequest(
				'calendarexportermodule',
				'export',
				{
					data: response,
					calendar: this.calendarselector.value
				},
				responseHandler
			);
			container.getNotifier().notify('info', 'Exported', 'Found ' + response.item.length + ' entries to export.');
		} else {
			container.getNotifier().notify('info', 'Export Failed', 'There were no items to export!');
			Zarafa.common.dialogs.MessageBox.hide();
		}
		this.dialog.close();
	},	
	
	/**
	 * download ics file =)
	 * @param {Object} response
	 * @private
	 */
	downLoadICS : function(response)
	{
		Zarafa.common.dialogs.MessageBox.hide();
		if(response.status === true) {			
			// needs to be window.open, document.location.href kills the extjs response handler...
			window.open('plugins/calendarimporter/php/download.php?fileid='+response.fileid+'&basedir='+response.basedir+'&secid='+response.secid+'&realname='+response.realname,"Download");
		} else {
			container.getNotifier().notify('error', 'Export Failed', 'ICal File creation failed!');
		}		
	},

	importCheckedEvents: function () {
		//receive existing calendar store
		var selIndex = this.calendarselector.selectedIndex;
		var calValue = this.calendarselector.value;

		if(selIndex == -1) { // no calendar choosen
			Ext.MessageBox.show({
				title   : _('Error'),
				msg     : _('You have to choose a calendar!'),
				icon    : Ext.MessageBox.ERROR,
				buttons : Ext.MessageBox.OK
			});
		} else {
			if(this.eventgrid.selModel.getCount() < 1) {
				Ext.MessageBox.show({
					title   : _('Error'),
					msg     : _('You have to choose at least one event to import!'),
					icon    : Ext.MessageBox.ERROR,
					buttons : Ext.MessageBox.OK
				});
			} else {
				var calendarStore = new Zarafa.calendar.AppointmentStore();
				var calendarFolder =  container.getHierarchyStore().getDefaultFolder('calendar');
				if(calValue != "calendar") {
					var subFolders = calendarFolder.getChildren();
				
					for(i=0;i<subFolders.length;i++) {
						// loo up right folder 
						// TODO: improve!!
						if(subFolders[i].getDisplayName() == calValue) {
							calendarFolder = subFolders[i];
							break;
						}
					}
				}

				//receive Records from grid rows
				var newRecords = this.eventgrid.selModel.getSelections();
				Ext.each(newRecords, function(newRecord) {
					var record = this.convertToAppointmentRecord(calendarFolder,newRecord.data);
					calendarStore.add(record);
				}, this);
				calendarStore.save();
				this.dialog.close();
			}
		}
    }
});

Ext.reg('calendarimporter.importpanel', Zarafa.plugins.calendarimporter.dialogs.ImportPanel);