// 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;

function stopCheckStatusInterval() {
	if (checkStatusInterval != null) {
		clearInterval(checkStatusInterval);
		checkStatusInterval = null;
	}
}

function stopRefreshAPInterval() {
	if (refreshAPInterval != null) {
		clearInterval(refreshAPInterval);
		refreshAPInterval = null;
	}
}

function startCheckStatusInterval() {
	checkStatusInterval = setInterval(checkStatus, 950);
}

function startRefreshAPInterval() {
	refreshAPInterval = setInterval(refreshAP, 2800);
}

$(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: '/fp/connect',
			dataType: 'json',
			method: 'DELETE',
			cache: false,
			data: { 'timestamp': Date.now() }
		});

		startCheckStatusInterval();

		$("#connect-details").slideUp("fast", function () { });
		$("#wifi").slideDown("fast", function () { })
	});

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




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: '/fp/connect',
		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("/fp/ap", 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);

		}
	});
}

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("/fp/network", function (data) {
		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();

					// Redirect to the main page after 5 seconds
					window.setTimeout(function () {
						// Move to a new location or you can do something else
						window.location.href = "http://" + data["ip"];
					}, 5000);
				}
				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
		});
}