$(document).ready(function() {

    history.pushState(null, null, location.href); history.back(); history.forward(); window.onpopstate = function () { history.go(1); };

	$('.battery_level').bind('click', function() {
		var bat_lev=android.getBatteryLevel();
		$(this).text(new Date().getTime()+' : '+bat_lev);
	});

	$('.setup .mode').bind('change',function() {
		var mode=$(this).val();
		$.ajax({
			type: "POST",
			//dataType: "json",
			url: "/ajax",
			data: "set_mode=1&mode="+mode,
			beforeSend: function() {
				$('.logo').addClass('rot');
			},
			success: function(res) {
				var num_options='<option value="" disabled selected>#</option>';
				$.each(res, function(k,v) {
					num_options+='<option value="'+v+'">'+v+'</option>';
				});
				$('.setup .number').html(num_options).removeClass('hide');
				$('.setup .number').bind('change',function() {
					var num=$(this).val();
					$('.setup .enter').removeClass('hide');
					$('.setup .enter').bind('click',function() {
						document.location='/'+mode+'/'+num;
					});
				});
				$('.logo').removeClass('rot');
			}
		});	
	});

});

var STR_PAD_LEFT = 1;
var STR_PAD_RIGHT = 2;
var STR_PAD_BOTH = 3;

function strpad(str, len, pad, dir) {

    if (typeof(len) == "undefined") { var len = 0; }
    if (typeof(pad) == "undefined") { var pad = ' '; }
    if (typeof(dir) == "undefined") { var dir = STR_PAD_RIGHT; }

    if (len + 1 >= str.length) {

        switch (dir){

            case STR_PAD_LEFT:
                str = Array(len + 1 - str.length).join(pad) + str;
            break;

            case STR_PAD_BOTH:
                var right = Math.ceil((padlen = len - str.length) / 2);
                var left = padlen - right;
                str = Array(left+1).join(pad) + str + Array(right+1).join(pad);
            break;

            default:
                str = str + Array(len + 1 - str.length).join(pad);
            break;

        } // switch

    }

    return str;

}

function printReceipt(order) {
	var printServerHost=$('input:hidden#printServerHost').val();
	var printerName=$('input:hidden#printerName').val();
	var waiter=$('input:hidden#waiter').val();
	
	var receipt={
	  "UniqueSaleNumber" : printerName.toUpperCase()+"-"+waiter.padStart(4, 0)+"-"+String(order[Object.keys(order)[0]].order_id).padStart(7, 0),
	  "items": [],
	  "payments": []
	};

	var total=0;
	$.each(order, function(k,v) {

		receipt.items.push({
			"text" : v.name,
			"quantity": v.qty,
	      	"unitPrice": Math.round(v.price/100, 2),
	      	"taxGroup": 1			
		});

		if (v.descr) {
			var comment='';
			$.each(v.descr, function(k1,v1) {
				if (v1) {
					comment+='+'+k1+',';
				} else {
					comment+='-'+k1+',';
				}
			});
			receipt.items.push({
				"type" : "comment",
				"text" : comment.slice(0, -1)
			});
		}

		total=parseInt(total)+(v.price*parseInt(v.qty));
	});

	receipt.payments.push({
      "amount": Math.round(total/100, 2),
      "paymentType": "cash"			
	});	
	$.ajax({
		type: "POST",
		dataType: "json",
		contentType: "application/json",
		url: printServerHost+"/printers/"+printerName+"/receipt",
		data: JSON.stringify(receipt),
		beforeSend: function() {

		},
		success: function(res) {

		}
	});

}

function printToKitchen(order) {
	var btprinter=$('input:hidden#btprinter').val();

	var PRINTER_OK = 0;
    var PRINTER_NOT_FOUND = -1;
    var PRINTER_ERROR = -2;
    var PRINTER_NO_PAPER = -3;

    var MODE_DF = (0 << 0) // Default mode
    var MODE_SF = (1 << 0) // Small font
    var MODE_BL = (1 << 3) // Bold
    var MODE_DH = (1 << 4) // Double height
    var MODE_DW = (1 << 5) // Double width
    var MODE_DS = MODE_DH | MODE_DW // Double size
    var MODE_UL = (1 << 7) // Underline

    // document.getElementById("demo").innerHTML = "Connecting to printer...";

    var status = android.openPrinter(btprinter); // "68:AA:D2:00:CD:F0"
    if (status != PRINTER_OK) {
        // document.getElementById("demo").innerHTML += "ERROR " + status;
        android.closePrinter();
        return;
    } else {
        // document.getElementById("demo").innerHTML += "OK";
    }

    // document.getElementById("demo").innerHTML += "<BR>Get paper status...";
    status = android.getPrinterStatus();
    if (status != PRINTER_OK) {
        if (status == PRINTER_NO_PAPER) {
            // document.getElementById("demo").innerHTML += "NO PAPER";
        } else {
            // document.getElementById("demo").innerHTML += "ERROR " + status;
        }
        android.closePrinter();
        return;
    } else {
        // document.getElementById("demo").innerHTML += "OK";
    }
    android.printLogo(1);
    android.printLine(MODE_DF, "     Rock'N'Rolla Рок Kлуб      ");
    android.printLine(MODE_DF, "      ул. Граф Игнатиев 1       ");
    android.printLine(MODE_DF, "           гр. София            ");
    android.printLine(MODE_DF, "   Тел. +359(0)888-13-1318      ");
    android.printLine(MODE_DF, "     www.www.rocknrolla.bg      ");
    android.printLine(MODE_DF, "  Добре Дошли в Rock'N'Rolla    ");
    android.printLine(MODE_DF, "                                ");
    android.printLine(MODE_DF, "                                ");
    // android.printLine(MODE_DS|MODE_SF, "Order:#"+strpad(order_id, 5, 0, STR_PAD_LEFT)+" Table: "+table+"\r\n");
    android.printLine(MODE_DS|MODE_SF, "Маса: "+table+"\r\n");    
    var d=new Date();
    var date=d.getDate()+"/"+(d.getMonth()+1)+"/"+d.getFullYear()+" "+d.getHours()+":"+d.getMinutes();
    android.printLine(MODE_DF, "Дата: "+date+"\r\n");
    android.printLine(MODE_DF, "Сервитьор: Жоро                 ");
    android.printLine(MODE_DF, "--------------------------------");
	var total_price=0;
	var total_qty=0;

    $.each(order, function(k,v) {
    	total_price=parseFloat(total_price)+parseFloat(v.price*v.qty);
    	total_qty=parseInt(total_qty)+parseInt(v.qty);
    	android.printLine(MODE_DF, strpad(v.qty+" x "+v.name, 25, ' ', STR_PAD_RIGHT)+strpad((parseFloat(v.price)/100).toFixed(2), 7, ' ', STR_PAD_LEFT));
    });
    android.printLine(MODE_DF, "--------------------------------");
    android.printLine(MODE_DF, "Общо: "+strpad(total_qty, 6, ' ', STR_PAD_LEFT)+" брой(я)"+strpad((total_price/100).toFixed(2), 17, ' ', STR_PAD_LEFT));
    android.printLine(MODE_DF, "ДДС                          20%");
    android.printLine(MODE_DF, "--------------------------------");
    android.printLine(MODE_DS|MODE_SF, "Общо Сума: "+strpad(((total_price/100)*1.2).toFixed(2), 10, ' ', STR_PAD_LEFT));  // 21
    android.printLine(MODE_DF, "                                ");
    //android.printLine(MODE_UL, "Tip guide                       ");
    //android.printLine(MODE_DF, "15%="+strpad(((total_price/100)*1.15*1.1).toFixed(2), 11, ' ', STR_PAD_RIGHT)+"  20%="+strpad(((total_price/100)*1.2*1.1).toFixed(2), 11, ' ', STR_PAD_RIGHT));
    android.printLine(MODE_DF, "         Благодарим Ви!         ");
    android.printLine(MODE_DF, "       Очакваме Ви скоро!       ");
    android.printLine(MODE_SF, "(C)2019 Rock'N'Rolla. Всички права запазeни"); //42
    android.printLine(MODE_DF, "                                ");
    android.printLine(MODE_DF, "                                ");
    android.printLine(MODE_DF, "                                ");
    android.closePrinter();

	/*
	var total_price='';
    $.each(order, function(k,v) {
    	total_price=total_price+v;
    	android.printLine(MODE_DF, v.name+"               "+(v.price/100).toFixed(2));
    });
    */

}