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

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

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

/**
 * @constructor
 */
function ChangePasswordUserSettings()
{
	this.changeProcess = ko.observable(false);

	this.errorDescription = ko.observable('');
	this.passwordMismatch = ko.observable(false);
	this.passwordUpdateError = ko.observable(false);
	this.passwordUpdateSuccess = ko.observable(false);

	this.currentPassword = ko.observable('');
	this.currentPassword.error = ko.observable(false);
	this.newPassword = ko.observable('');
	this.newPassword2 = ko.observable('');

	this.currentPassword.subscribe(function() {
		this.passwordUpdateError(false);
		this.passwordUpdateSuccess(false);
		this.currentPassword.error(false);
	}, this);

	this.newPassword.subscribe(function() {
		this.passwordUpdateError(false);
		this.passwordUpdateSuccess(false);
		this.passwordMismatch(false);
	}, this);

	this.newPassword2.subscribe(function() {
		this.passwordUpdateError(false);
		this.passwordUpdateSuccess(false);
		this.passwordMismatch(false);
	}, this);

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

		if (this.newPassword() !== this.newPassword2())
		{
			this.passwordMismatch(true);
			this.errorDescription(Translator.i18n('SETTINGS_CHANGE_PASSWORD/ERROR_PASSWORD_MISMATCH'));
		}
		else
		{
			this.changeProcess(true);

			this.passwordUpdateError(false);
			this.passwordUpdateSuccess(false);
			this.currentPassword.error(false);
			this.passwordMismatch(false);
			this.errorDescription('');

			Remote.changePassword(this.onChangePasswordResponse, this.currentPassword(), this.newPassword());
		}

	}, function() {
		return !this.changeProcess() && '' !== this.currentPassword() &&
			'' !== this.newPassword() && '' !== this.newPassword2();
	});

	this.onChangePasswordResponse = _.bind(this.onChangePasswordResponse, this);
}

ChangePasswordUserSettings.prototype.onHide = function()
{
	this.changeProcess(false);
	this.currentPassword('');
	this.newPassword('');
	this.newPassword2('');
	this.errorDescription('');
	this.passwordMismatch(false);
	this.currentPassword.error(false);
};

ChangePasswordUserSettings.prototype.onChangePasswordResponse = function(sResult, oData)
{
	this.changeProcess(false);
	this.passwordMismatch(false);
	this.errorDescription('');
	this.currentPassword.error(false);

	if (Enums.StorageResultType.Success === sResult && oData && oData.Result)
	{
		this.currentPassword('');
		this.newPassword('');
		this.newPassword2('');

		this.passwordUpdateSuccess(true);
		this.currentPassword.error(false);

		require('App/User').default.setClientSideToken(oData.Result);
	}
	else
	{
		if (oData && Enums.Notification.CurrentPasswordIncorrect === oData.ErrorCode)
		{
			this.currentPassword.error(true);
		}

		this.passwordUpdateError(true);
		this.errorDescription(
			Translator.getNotificationFromResponse(oData, Enums.Notification.CouldNotSaveNewPassword));
	}
};

module.exports = ChangePasswordUserSettings;