'use strict';

$.defaultHandlers = {

	disableSubmitButton: function( form , disable) {
		form.find(":submit").attr("disabled", disable);
	},

	startWait: function( ) {
		$('#pleaseWaitDialog').modal('show');
	},

	endWait: function( ) {
		$('#pleaseWaitDialog').modal('hide');
	},

	showErrorMessage: function( form , message ) {
		var div = form.find(".form-error-message");
		if (div.length) {
			div.show();
			div.html(message);
		} else {
			alert(message);
		}
	},

	hideErrorMessage: function( form ) {
		var div = form.find(".form-error-message");
		if (div.length)
			div.hide();
	},

	validateResponse: function( response ) {
		if (!response)
			return { Success: false, ErrorMessage: "Системна грешка." };
		return {
			Success: response.Success ?? false,
			Result: response.Result ,
			ErrorMessage: response.ErrorMessage ?? "Системна грешка."
		};
	},

	postProcessSuccess: function( caller , response ) {

		// if data-navigate="" is set, go there
		var navigate_url = caller.data("navigate");
		if (navigate_url) {
			window.location = navigate_url.replace(':response', response);
			return;
		}

		// fallback: refresh the page
		window.location.reload();
	} ,

	processResponse: function( form , response ) {
		var result = $.defaultHandlers.validateResponse( response );
		if (!result.Success) {
			$.defaultHandlers.showErrorMessage(form, result.ErrorMessage);
			return;
		}
		$.defaultHandlers.postProcessSuccess(form, result.Result);
	},

	submitHandler: function( element , event ) {
		event.preventDefault();

		var form = $(element);
		$.defaultHandlers.hideErrorMessage(form);
		$.defaultHandlers.disableSubmitButton(form, true);
		$.defaultHandlers.startWait();
		$.ajax({
			url: form.data("service"),
			type: 'POST',
			data: new FormData(element),
			async: true,
			cache: false,
			contentType: false,
			enctype: 'multipart/form-data',
			processData: false,
			success: function( response ) {
				$.defaultHandlers.disableSubmitButton(form, false);
				$.defaultHandlers.processResponse(form, response);
				$.defaultHandlers.endWait();
			},
			error: function( xhr , status , error ) {
				$.defaultHandlers.disableSubmitButton(form, false);
				$.defaultHandlers.showErrorMessage(form, "XHR:" + xhr.responseText + "\n<br>Status: " + status + "\n<br>Error: " + error);
				$.defaultHandlers.endWait();
			}
		});
		return false;
	} ,

	processRestLinkResponse: function( sender , response ) {
		var result = $.defaultHandlers.validateResponse( response );
		if (!result.Success) {
			alert( result.ErrorMessage );
			return;
		}
		$.defaultHandlers.postProcessSuccess(sender, result.Result);
	} ,

	restLinkHandler: function( event ) {
		event.preventDefault();

		var sender = $(event.target);
		sender.attr("disabled", true);
		$.defaultHandlers.startWait();
		$.ajax({
			url: sender.data("service"),
			type: 'GET',
			async: true,
			cache: false,
			processData: false,
			success: function( response ) {
				sender.attr("disabled", false);
				$.defaultHandlers.processRestLinkResponse(sender, response);
				$.defaultHandlers.endWait();
			},
			error: function( xhr , status , error ) {
				sender.attr("disabled", false);
				alert("XHR:" + xhr.responseText + "\n<br>Status: " + status + "\n<br>Error: " + error);
				$.defaultHandlers.endWait();
			}
		});
		return false;
	}
};

$(document).ready(function( ) {

	//$("#pleaseWaitDialog").modal({ backdrop: 'static', keyboard: false });
	//$("#pleaseWaitDialog").modal({ show:true, backdrop: 'static', keyboard: false });
	// $("#pleaseWaitDialog").modal("show");

	$('#pleaseWaitDialog').modal({ show: true, backdrop: 'static', keyboard: false });
//	setTimeout(function () { $('#pleaseWaitDialog').modal('show'); }, 1000);
//	setTimeout(function () { $('#pleaseWaitDialog').modal('hide'); }, 3000);

	$('form.js_default').each(function( ) {
		$(this).validate({});
	});

	$('form.js_service').each(function () {
		$(this).validate({ submitHandler: $.defaultHandlers.submitHandler });
	});

	$('a.js_service').click(
		$.defaultHandlers.restLinkHandler
	);

	$('button.js_service').click(
		$.defaultHandlers.restLinkHandler
	);

	$('a.toggle_dialog').click(function( e ) {
		$("#" + $(this).data('hide')).modal("hide");
		var dialog = $("#" + $(this).data('show'));
		dialog.modal("show");
		dialog.find('[autofocus]').focus();
		e.preventDefault();
		return false;
	});

	$('a.js_dialog').click(function( e ) {
		var dialog = $('#' + $(this).data('target'));
		dialog.modal("toggle");
		dialog.find('[autofocus]').focus();
		e.preventDefault();
		return false;
	});

});