var
	_ = require('_'),
	ko = require('ko'),

	Enums = require('Common/Enums'),
	Utils = require('Common/Utils'),
	Translator = require('Common/Translator'),
	HtmlEditor = require('Common/HtmlEditor'),

	Remote = require('Remote/User/Ajax'),

	kn = require('Knoin/Knoin'),
	AbstractView = require('Knoin/AbstractView');

/**
 * @constructor
 * @extends AbstractView
 */
function TemplatePopupView()
{
	AbstractView.call(this, 'Popups', 'PopupsTemplate');

	this.editor = null;
	this.signatureDom = ko.observable(null);

	this.id = ko.observable('');

	this.name = ko.observable('');
	this.name.error = ko.observable(false);
	this.name.focus = ko.observable(false);

	this.body = ko.observable('');
	this.body.loading = ko.observable(false);
	this.body.error = ko.observable(false);

	this.name.subscribe(function() {
		this.name.error(false);
	}, this);

	this.body.subscribe(function() {
		this.body.error(false);
	}, this);

	this.submitRequest = ko.observable(false);
	this.submitError = ko.observable('');

	this.addTemplateCommand = Utils.createCommand(this, function() {

		this.populateBodyFromEditor();

		this.name.error('' === Utils.trim(this.name()));
		this.body.error('' === Utils.trim(this.body()) ||
			':HTML:' === Utils.trim(this.body()));

		if (this.name.error() || this.body.error())
		{
			return false;
		}

		this.submitRequest(true);

		Remote.templateSetup(_.bind(function(sResult, oData) {

			this.submitRequest(false);
			if (Enums.StorageResultType.Success === sResult && oData)
			{
				if (oData.Result)
				{
					require('App/User').default.templates();
					this.cancelCommand();
				}
				else if (oData.ErrorCode)
				{
					this.submitError(Translator.getNotification(oData.ErrorCode));
				}
			}
			else
			{
				this.submitError(Translator.getNotification(Enums.Notification.UnknownError));
			}

		}, this), this.id(), this.name(), this.body());

		return true;

	}, function() {
		return !this.submitRequest();
	});

	kn.constructorEnd(this);
}

kn.extendAsViewModel(['View/Popup/Template'], TemplatePopupView);
_.extend(TemplatePopupView.prototype, AbstractView.prototype);

TemplatePopupView.prototype.clearPopup = function()
{
	this.id('');

	this.name('');
	this.name.error(false);

	this.body('');
	this.body.loading(false);
	this.body.error(false);

	this.submitRequest(false);
	this.submitError('');

	if (this.editor)
	{
		this.editor.setPlain('', false);
	}
};

TemplatePopupView.prototype.populateBodyFromEditor = function()
{
	if (this.editor)
	{
		this.body(this.editor.getDataWithHtmlMark());
	}
};

TemplatePopupView.prototype.editorSetBody = function(sBody)
{
	if (!this.editor && this.signatureDom())
	{
		var self = this;
		this.editor = new HtmlEditor(self.signatureDom(), function() {
			self.populateBodyFromEditor();
		}, function() {
			self.editor.setHtmlOrPlain(sBody);
		});
	}
	else
	{
		this.editor.setHtmlOrPlain(sBody);
	}
};

TemplatePopupView.prototype.onShow = function(oTemplate)
{
	var self = this;

	this.clearPopup();

	if (oTemplate && oTemplate.id)
	{
		this.id(oTemplate.id);
		this.name(oTemplate.name);
		this.body(oTemplate.body);

		if (oTemplate.populated)
		{
			self.editorSetBody(this.body());
		}
		else
		{
			this.body.loading(true);
			self.body.error(false);

			Remote.templateGetById(function(sResult, oData) {

				self.body.loading(false);

				if (Enums.StorageResultType.Success === sResult && oData && oData.Result &&
					'Object/Template' === oData.Result['@Object'] && Utils.isNormal(oData.Result.Body))
				{
					oTemplate.body = oData.Result.Body;
					oTemplate.populated = true;

					self.body(oTemplate.body);
					self.body.error(false);
				}
				else
				{
					self.body('');
					self.body.error(true);
				}

				self.editorSetBody(self.body());

			}, this.id());
		}
	}
	else
	{
		self.editorSetBody('');
	}
};

TemplatePopupView.prototype.onShowWithDelay = function()
{
	this.name.focus(true);
};

module.exports = TemplatePopupView;