var commandHeader = 'squeezelite -b 500:2000 -d all=info ';

// First, checks if it isn't implemented yet.
if (!String.prototype.format) {
  String.prototype.format = function() {
    var args = arguments;
    return this.replace(/{(\d+)}/g, function(match, number) { 
      return typeof args[number] != 'undefined'
        ? args[number]
        : match
      ;
    });
  };
}

var apList = null;
var selectedSSID = "";
var refreshAPInterval = null; 
var checkStatusInterval = null;

var StatusIntervalActive = false;
var ConfigIntervalActive = false;
var RefreshAPIIntervalActive = false;


function stopCheckStatusInterval(){
	if(checkStatusInterval != null){
		clearTimeout(checkStatusInterval);
		checkStatusInterval = null;
	}
	StatusIntervalActive = false;
}

function stopRefreshAPInterval(){
	
	if(refreshAPInterval != null){
		 clearTimeout(refreshAPInterval);
		refreshAPInterval = null;
	}
	RefreshAPIIntervalActive = false;
}


function startCheckStatusInterval(){
	StatusIntervalActive = true;
	checkStatusInterval = setTimeout(checkStatus, 950);
}

function startRefreshAPInterval(){
	RefreshAPIIntervalActive = true;
	refreshAPInterval = setTimeout(refreshAP, 2800);
}


function RepeatCheckStatusInterval(){
	if(StatusIntervalActive)
		startCheckStatusInterval();
}

function RepeatCheckConfigInterval(){
	if(ConfigIntervalActive)
		startCheckConfigInterval();
}

function RepeatRefreshAPInterval(){
	if(RefreshAPIIntervalActive)
		startRefreshAPInterval()
}

$(document).ready(function(){
	$("#wifi-status").on("click", ".ape", function() {
		$( "#wifi" ).slideUp( "fast", function() {});
		$( "#connect-details" ).slideDown( "fast", function() {});
	});

	$("#manual_add").on("click", ".ape", function() {
		selectedSSID = $(this).text();
		$( "#ssid-pwd" ).text(selectedSSID);
		$( "#wifi" ).slideUp( "fast", function() {});
		$( "#connect_manual" ).slideDown( "fast", function() {});
		$( "#connect" ).slideUp( "fast", function() {});

		//update wait screen
		$( "#loading" ).show();
		$( "#connect-success" ).hide();
		$( "#connect-fail" ).hide();
	});

	$("#wifi-list").on("click", ".ape", function() {
		selectedSSID = $(this).text();
		$( "#ssid-pwd" ).text(selectedSSID);
		$( "#wifi" ).slideUp( "fast", function() {});
		$( "#connect_manual" ).slideUp( "fast", function() {});
		$( "#connect" ).slideDown( "fast", function() {});
		
		//update wait screen
		$( "#loading" ).show();
		$( "#connect-success" ).hide();
		$( "#connect-fail" ).hide();		
	});
	
	$("#cancel").on("click", function() {
		selectedSSID = "";
		$( "#connect" ).slideUp( "fast", function() {});
		$( "#connect_manual" ).slideUp( "fast", function() {});
		$( "#wifi" ).slideDown( "fast", function() {});
	});

	$("#manual_cancel").on("click", function() {
		selectedSSID = "";
		$( "#connect" ).slideUp( "fast", function() {});
		$( "#connect_manual" ).slideUp( "fast", function() {});
		$( "#wifi" ).slideDown( "fast", function() {});
	});
	
	$("#join").on("click", function() {
		performConnect();
	});

	$("#manual_join").on("click", function() {
		performConnect($(this).data('connect'));
	});
	
	$("#ok-details").on("click", function() {
		$( "#connect-details" ).slideUp( "fast", function() {});
		$( "#wifi" ).slideDown( "fast", function() {});
		
	});
	
	$("#ok-credits").on("click", function() {
		$( "#credits" ).slideUp( "fast", function() {});
		$( "#app" ).slideDown( "fast", function() {});
	});
	
	$("#acredits").on("click", function(event) {
		event.preventDefault();
		$( "#app" ).slideUp( "fast", function() {});
		$( "#credits" ).slideDown( "fast", function() {});
	});
	
	$("#ok-connect").on("click", function() {
		$( "#connect-wait" ).slideUp( "fast", function() {});
		$( "#wifi" ).slideDown( "fast", function() {});
	});
	
	$("#disconnect").on("click", function() {
		$( "#connect-details-wrap" ).addClass('blur');
		$( "#diag-disconnect" ).slideDown( "fast", function() {});
	});
	
	$("#no-disconnect").on("click", function() {
		$( "#diag-disconnect" ).slideUp( "fast", function() {});
		$( "#connect-details-wrap" ).removeClass('blur');
	});
	
	$("#yes-disconnect").on("click", function() {
		
		stopCheckStatusInterval();
		selectedSSID = "";
		
		$( "#diag-disconnect" ).slideUp( "fast", function() {});
		$( "#connect-details-wrap" ).removeClass('blur');
		
		$.ajax({
			url: '/connect.json',
			dataType: 'json',
			method: 'DELETE',
			cache: false,
			data: { 'timestamp': Date.now()}
		});

		startCheckStatusInterval();
		
		$( "#connect-details" ).slideUp( "fast", function() {});
		$( "#wifi" ).slideDown( "fast", function() {})
	});
	
	$("#update-command").click(function() {
		updateAutoexec();
	});	

	$("#generate-command").click(function() {
		generateCommand();
	});	

    $('[name=audio]').click(function(){
        selectOutput(this);
   	});

	//first time the page loads: attempt get the connection status and start the wifi scan
	refreshAP();
	startCheckStatusInterval();
	startRefreshAPInterval();
    getConfig();
});

function performConnect(conntype){
	
	//stop the status refresh. This prevents a race condition where a status 
	//request would be refreshed with wrong ip info from a previous connection
	//and the request would automatically shows as succesful.
	stopCheckStatusInterval();
	
	//stop refreshing wifi list
	stopRefreshAPInterval();

	var pwd;
	if (conntype == 'manual') {
		//Grab the manual SSID and PWD
		selectedSSID=$('#manual_ssid').val();
		pwd = $("#manual_pwd").val();
	}else{
		pwd = $("#pwd").val();
	}
	//reset connection 
	$( "#loading" ).show();
	$( "#connect-success" ).hide();
	$( "#connect-fail" ).hide();
	
	$( "#ok-connect" ).prop("disabled",true);
	$( "#ssid-wait" ).text(selectedSSID);
	$( "#connect" ).slideUp( "fast", function() {});
	$( "#connect_manual" ).slideUp( "fast", function() {});
	$( "#connect-wait" ).slideDown( "fast", function() {});
	
	
	$.ajax({
		url: '/connect.json',
		dataType: 'json',
		method: 'POST',
		cache: false,
		headers: { 'X-Custom-ssid': selectedSSID, 'X-Custom-pwd': pwd },
		data: { 'timestamp': Date.now()}
	});


	//now we can re-set the intervals regardless of result
	startCheckStatusInterval();
	startRefreshAPInterval();
}



function rssiToIcon(rssi){
	if(rssi >= -60){
		return 'w0';
	}
	else if(rssi >= -67){
		return 'w1';
	}
	else if(rssi >= -75){
		return 'w2';
	}
	else{
		return 'w3';
	}
}

function refreshAP(){
	$.getJSON( "/ap.json", function( data ) {
		if(data.length > 0){
			//sort by signal strength
			data.sort(function (a, b) {
				var x = a["rssi"]; var y = b["rssi"];
				return ((x < y) ? 1 : ((x > y) ? -1 : 0));
			});
			apList = data;
			refreshAPHTML(apList);
			
		}
	});
	RepeatRefreshAPInterval();
}

function refreshAPHTML(data){
	var h = "";
	data.forEach(function(e, idx, array) {
		h += '<div class="ape{0}"><div class="{1}"><div class="{2}">{3}</div></div></div>'.format(idx === array.length - 1?'':' brdb', rssiToIcon(e.rssi), e.auth==0?'':'pw',e.ssid);
		h += "\n";
	});
	
	$( "#wifi-list" ).html(h)
}

function checkStatus(){
	$.getJSON( "/status.json", function( data ) {
		if(data.hasOwnProperty('autoexec1') && data['autoexec1'] != ""){
			$("#autoexec1_current").text(data["autoexec1"]);
		}	
		if(data.hasOwnProperty('ssid') && data['ssid'] != ""){
			if(data["ssid"] === selectedSSID){
				//that's a connection attempt
				if(data["urc"] === 0){
					//got connection
					$("#connected-to span").text(data["ssid"]);
					$("#connect-details h1").text(data["ssid"]);
					$("#ip").text(data["ip"]);
					$("#netmask").text(data["netmask"]);
					$("#gw").text(data["gw"]);
					$("#wifi-status").slideDown( "fast", function() {});
					
					//unlock the wait screen if needed
					$( "#ok-connect" ).prop("disabled",false);
					
					//update wait screen
					$( "#loading" ).hide();
					$( "#connect-success" ).show();
					$( "#connect-fail" ).hide();
				}
				else if(data["urc"] === 1){
					//failed attempt
					$("#connected-to span").text('');
					$("#connect-details h1").text('');
					$("#ip").text('0.0.0.0');
					$("#netmask").text('0.0.0.0');
					$("#gw").text('0.0.0.0');
					
					//don't show any connection
					$("#wifi-status").slideUp( "fast", function() {});
					
					//unlock the wait screen
					$( "#ok-connect" ).prop("disabled",false);
					
					//update wait screen
					$( "#loading" ).hide();
					$( "#connect-fail" ).show();
					$( "#connect-success" ).hide();
				}
			}
			else if(data.hasOwnProperty('urc') && data['urc'] === 0){
				//ESP32 is already connected to a wifi without having the user do anything
				if( !($("#wifi-status").is(":visible")) ){
					$("#connected-to span").text(data["ssid"]);
					$("#connect-details h1").text(data["ssid"]);
					$("#ip").text(data["ip"]);
					$("#netmask").text(data["netmask"]);
					$("#gw").text(data["gw"]);
					$("#wifi-status").slideDown( "fast", function() {});
				}
			}
		}
		else if(data.hasOwnProperty('urc') && data['urc'] === 2){
			//that's a manual disconnect
			if($("#wifi-status").is(":visible")){
				$("#wifi-status").slideUp( "fast", function() {});
			}
		}
	})
	.fail(function() {
		//don't do anything, the server might be down while esp32 recalibrates radio
	});

	RepeatCheckStatusInterval();
}

function getConfig() {
	$.getJSON("/config.json", function(data) {
		if (data.hasOwnProperty('autoexec')) {
            if (data["autoexec"] === 1) {
                console.log('turn on autoexec');
                $("#autoexec-cb")[0].checked=true;
            } else {
                console.log('turn off autoexec');
                $("#autoexec-cb")[0].checked=false;
                $("#autoexec-command").hide(200);
            }
        }
		if (data.hasOwnProperty('list')) {
            data.list.forEach(function(line) {
                let key = Object.keys(line)[0];
                let val = Object.values(line)[0];
                console.log(key, val);
                if (key == 'autoexec1') {
                    $("#autoexec1").val(val);
                }
            });
        }
	})
	.fail(function() {
		console.log("failed to fetch config!");
	});
}

function updateAutoexec(){
	autoexec = ($("#autoexec-cb")[0].checked)?1:0;
	autoexec1 = $("#autoexec1").val();
	
	$.ajax({
		url: '/config.json',
		dataType: 'json',
		method: 'POST',
		cache: false,
		headers: { "X-Custom-autoexec": autoexec, "X-Custom-autoexec1": autoexec1 },
		data: { 'timestamp': Date.now() }
	});
    console.log('sent config JSON with headers:', autoexec, autoexec1);
}

function performFactory(){
// 	$( "#ok-connect" ).prop("disabled",true);
// 	$( "#ssid-wait" ).text(selectedSSID);
// 	$( "#connect" ).slideUp( "fast", function() {});
// 	$( "#connect_manual" ).slideUp( "fast", function() {});
// 	$( "#connect-wait" ).slideDown( "fast", function() {});
// 	// todo: should we update the UI here? 
	
	$.ajax({
		url: '/factory.json',
		dataType: 'json',
		method: 'POST',
		cache: false,
		data: { 'timestamp': Date.now()}
	});
}

var output = '';
function selectOutput(el) {
    if ($(el).attr('id') == 'bt') {
        $("#btsinkdiv").show(200);
        output = 'bt';
    } else {
        $("#btsinkdiv").hide(200);
        output = 'i2s';
    }
}

function generateCommand() {
    var commandLine = commandHeader + '-n ' + $("#player").val();

    if (output == 'bt') {
        commandLine += ' -o "BT -n \'' + $("#btsink").val() + '\'"  -R -u m -Z 192000 -r "44100-44100"';
    } else {
        commandLine += ' -o I2S';
    }
    if ($("#optional").val() != '') {
        commandLine += ' ' + $("#optional").val();
    }
    $("#autoexec1").val(commandLine);
}