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

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

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

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

	this.askDesc = ko.observable('');
	this.yesButton = ko.observable('');
	this.noButton = ko.observable('');

	this.yesFocus = ko.observable(false);
	this.noFocus = ko.observable(false);

	this.fYesAction = null;
	this.fNoAction = null;

	this.bFocusYesOnShow = true;
	this.bDisabeCloseOnEsc = true;
	this.sDefaultKeyScope = Enums.KeyState.PopupAsk;

	kn.constructorEnd(this);
}

kn.extendAsViewModel(['View/Popup/Ask', 'PopupsAskViewModel'], AskPopupView);
_.extend(AskPopupView.prototype, AbstractView.prototype);

AskPopupView.prototype.clearPopup = function()
{
	this.askDesc('');
	this.yesButton(Translator.i18n('POPUPS_ASK/BUTTON_YES'));
	this.noButton(Translator.i18n('POPUPS_ASK/BUTTON_NO'));

	this.yesFocus(false);
	this.noFocus(false);

	this.fYesAction = null;
	this.fNoAction = null;
};

AskPopupView.prototype.yesClick = function()
{
	this.cancelCommand();

	if (Utils.isFunc(this.fYesAction))
	{
		this.fYesAction.call(null);
	}
};

AskPopupView.prototype.noClick = function()
{
	this.cancelCommand();

	if (Utils.isFunc(this.fNoAction))
	{
		this.fNoAction.call(null);
	}
};

/**
 * @param {string} sAskDesc
 * @param {Function=} fYesFunc
 * @param {Function=} fNoFunc
 * @param {string=} sYesButton
 * @param {string=} sNoButton
 * @param {boolean=} bFocusYesOnShow
 * @returns {void}
 */
AskPopupView.prototype.onShow = function(sAskDesc, fYesFunc, fNoFunc, sYesButton, sNoButton, bFocusYesOnShow)
{
	this.clearPopup();

	this.fYesAction = fYesFunc || null;
	this.fNoAction = fNoFunc || null;

	this.askDesc(sAskDesc || '');

	if (sYesButton)
	{
		this.yesButton(sYesButton);
	}

	if (sNoButton)
	{
		this.noButton(sNoButton);
	}

	this.bFocusYesOnShow = Utils.isUnd(bFocusYesOnShow) ? true : !!bFocusYesOnShow;
};

AskPopupView.prototype.onShowWithDelay = function()
{
	if (this.bFocusYesOnShow)
	{
		this.yesFocus(true);
	}
};

AskPopupView.prototype.onBuild = function()
{
	key('tab, shift+tab, right, left', Enums.KeyState.PopupAsk, _.bind(function() {
		if (this.yesFocus())
		{
			this.noFocus(true);
		}
		else
		{
			this.yesFocus(true);
		}
		return false;
	}, this));

	key('esc', Enums.KeyState.PopupAsk, _.bind(function() {
		this.noClick();
		return false;
	}, this));
};

module.exports = AskPopupView;