$(function() {
	url = parent.document.URL;
    var iframe = document.createElement('iframe');
	iframe.setAttribute('id', 'customer-chatbox');
	iframe.setAttribute("src", "https://okchat365.com/widget_content?token=822404376&url="+url);
    iframe.style.width        = "340px";
    iframe.style.height       = "423px";
	iframe.style.position     = 'fixed';
	iframe.style.overflow     = 'hidden';
    iframe.style.zIndex       = 999999;
	
			iframe.style.right    = 0;
		iframe.style.marginRight  = '5px';
		
	iframe.style.marginBottom  = '-374px';
	iframe.style.bottom       = 0;
	iframe.border             = 0;
    iframe.marginwidth        = 0;
    iframe.marginWidth        = 0;
    iframe.marginheight       = 0;
    iframe.marginHeight       = 0;
    iframe.frameBorder        = 0;

    //document.body.prepend(iframe);
	document.body.appendChild(iframe);
	
	window.addEventListener('message', receiveMessage, false);
	
	var responsive_width = "768";
	
	function receiveMessage(event) {
		console.log(event.data);
		
		if(event.data == "show_hide"){
			var x = document.getElementById("customer-chatbox");
			
			//check if window is full screen
			if(x.style.height == "100%" && $(window).width() > responsive_width){
				x.style.width = "340px";
				x.style.height = "423px";
				x.contentWindow.postMessage('small_screen', '*');
			}else{
				x.style.height = "423px";
				x.contentWindow.postMessage('small_screen', '*');
			}
			
			if($(window).width() > responsive_width){
				//if this is desktop window
				if(x.style.marginBottom != "0px"){
					$(x).animate({marginBottom: '0px'});
					x.contentWindow.postMessage('class_down', '*');
				}else{
					$(x).animate({marginBottom: '-374px'});
					x.contentWindow.postMessage('class_up', '*');
				}
			
			}else{			
				//if this is responsive window
				if(x.style.marginBottom != "0px"){
					x.style.height = "100%";
					$(x).animate({marginBottom: '0px'});
					x.contentWindow.postMessage('full_screen', '*');
					x.contentWindow.postMessage('class_down', '*');
				}else{
					$(x).animate({marginBottom: '-374px'});
					x.contentWindow.postMessage('class_up', '*');
				}
			}
	
		}else if(event.data == "show_fullscreen"){
			var x = document.getElementById("customer-chatbox");
			if(x.style.width == "340px"){
				x.style.width  = "100%";
				x.style.height = "100%";
				x.style.marginRight  = '0px';
				x.contentWindow.postMessage('full_screen', '*');	
			}else{
				x.style.width  = "340px";
				x.style.height = "423px";
				x.style.marginRight  = '5px';
				x.contentWindow.postMessage('small_screen', '*');
			}
		}
    }
	
	$(window).on('load resize', function(e) {
		if($(window).width() <= responsive_width){
			var x = document.getElementById("customer-chatbox");
			$(x).css("width","100%");
			
			if(x.style.marginBottom != "0px"){
				$(x).css("height","423px");
			}else{
				$(x).css("height","100%");
			}
			
			$(x).css("margin-right","0px");
			x.contentWindow.postMessage('responsive', '*');
		}else{
			var x = document.getElementById("customer-chatbox");
			$(x).css("width","340px");
			$(x).css("margin-right","5px");
			$(x).css("height","423px");
			x.contentWindow.postMessage('desktop', '*');
		}
	});
	
});