/*
 * This file is part of Linode Manager Classic.
 *
 * Linode Manager Classic is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Linode Manager Classic is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Linode Manager Classic.  If not, see <https://www.gnu.org/licenses/>.
 */

import { settings, elements, apiDelete, apiGet, apiPost, drawSeries, eventTitles, parseParams, setupHeader, timeString, translateKernel } from "/global.js";

(function()
{
	// Element names specific to this page
	elements.backups = "backups";
	elements.backupsEnabled = "backups-enabled";
	elements.boot = "boot";
	elements.configRadioName = "config-radio";
	elements.configRemovePrefix = "config-remove-";
	elements.configTable = "config-table";
	elements.cpuAvg = "cpu-avg";
	elements.cpuGraph = "cpu-graph";
	elements.cpuLast = "cpu-last";
	elements.cpuMax = "cpu-max";
	elements.diskIcon = "disk-icon";
	elements.diskIconImg = "/img/disk.gif";
	elements.diskRemovePrefix = "disk-remove-";
	elements.diskTable = "disk-table";
	elements.diskUsage = "disk-usage";
	elements.eventRowPrefix = "event-row-";
	elements.eventTable = "event-table";
	elements.extraEvent = "extra-event";
	elements.graphRange = "graph-range";
	elements.info = "info";
	elements.ioGraph = "io-graph";
	elements.ioRateAvg = "io-rate-avg";
	elements.ioRateLast = "io-rate-last";
	elements.ioRateMax = "io-rate-max";
	elements.ipv4Graph = "ipv4-graph";
	elements.ipv4InAvg = "ipv4-in-avg";
	elements.ipv4InLast = "ipv4-in-last";
	elements.ipv4InMax = "ipv4-in-max";
	elements.ipv4OutAvg = "ipv4-out-avg";
	elements.ipv4OutLast = "ipv4-out-last";
	elements.ipv4OutMax = "ipv4-out-max";
	elements.ipv4PrivInAvg = "ipv4-privin-avg";
	elements.ipv4PrivInLast = "ipv4-privin-last";
	elements.ipv4PrivInMax = "ipv4-privin-max";
	elements.ipv4PrivOutAvg = "ipv4-privout-avg";
	elements.ipv4PrivOutLast = "ipv4-privout-last";
	elements.ipv4PrivOutMax = "ipv4-privout-max";
	elements.ipv4Total = "ipv4-total";
	elements.ipv4TotalIn = "ipv4-total-in";
	elements.ipv4TotalOut = "ipv4-total-out";
	elements.ipv6Graph = "ipv6-graph";
	elements.ipv6InAvg = "ipv6-in-avg";
	elements.ipv6InLast = "ipv6-in-last";
	elements.ipv6InMax = "ipv6-in-max";
	elements.ipv6OutAvg = "ipv6-out-avg";
	elements.ipv6OutLast = "ipv6-out-last";
	elements.ipv6OutMax = "ipv6-out-max";
	elements.ipv6PrivInAvg = "ipv6-privin-avg";
	elements.ipv6PrivInLast = "ipv6-privin-last";
	elements.ipv6PrivInMax = "ipv6-privin-max";
	elements.ipv6PrivOutAvg = "ipv6-privout-avg";
	elements.ipv6PrivOutLast = "ipv6-privout-last";
	elements.ipv6PrivOutMax = "ipv6-privout-max";
	elements.ipv6Total = "ipv6-total";
	elements.ipv6TotalIn = "ipv6-total-in";
	elements.ipv6TotalOut = "ipv6-total-out";
	elements.jobFailed = "job-failed";
	elements.jobInfo = "job-info";
	elements.jobNotice = "job-notice";
	elements.jobProgress = "job-progress";
	elements.jobProgressRow = "job-progress-row";
	elements.jobRunning = "job-running";
	elements.jobSuccess = "job-success";
	elements.jobType = "job-type";
	elements.lastBackup = "last-backup";
	elements.lastBackupTime = "last-backup-time";
	elements.linodeLabel = "linode-label";
	elements.linodeTag = "linode-tag";
	elements.linodeTagLink = "linode-tag-link";
	elements.lmcRow = "lmc-tr3";
	elements.loadingConfigs = "loading-configs";
	elements.loadingDisks = "loading-disks";
	elements.loadingJobs = "loading-jobs";
	elements.loadingVolumes = "loading-volumes";
	elements.moreJobs = "moar-jobs";
	elements.netUsage = "net-usage";
	elements.notification = "notification";
	elements.notifications = "notifications";
	elements.reboot = "reboot";
	elements.serverStatus = "server-status";
	elements.shutDown = "shut-down";
	elements.spinnerImg = "/img/spinner-trans.gif";
	elements.storageFree = "storage-free";
	elements.storageTotal = "storage-total";
	elements.storageUsed = "storage-used";
	elements.swapRateAvg = "swap-rate-avg";
	elements.swapRateLast = "swap-rate-last";
	elements.swapRateMax = "swap-rate-max";
	elements.transferMonthly = "transfer-monthly";
	elements.transferOverage = "transfer-overage";
	elements.transferUsed = "transfer-used";
	elements.upgrade = "upgrade";
	elements.volumeTable = "volume-table";

	// Data recieved from API calls
	var data = {};
	data.params = {};
	data.configs = [];
	data.disks = [];
	data.events = [];
	data.linode = {};
	data.linodeTransfer = {};
	data.notifications = [];
	data.plan = {};
	data.stats = {};
	data.volumes = [];

	// Static references to UI elements
	var ui = {};
	ui.backups = {};
	ui.boot = {};
	ui.configTable = {};
	ui.cpuAvg = {};
	ui.cpuGraph = {};
	ui.cpuLast = {};
	ui.cpuMax = {};
	ui.diskTable = {};
	ui.diskUsage = {};
	ui.eventTable = {};
	ui.graphRange = {};
	ui.ioGraph = {};
	ui.ioRateAvg = {};
	ui.ioRateLast = {};
	ui.ioRateMax = {};
	ui.ipv4Graph = {};
	ui.ipv4InAvg = {};
	ui.ipv4InLast = {};
	ui.ipv4InMax = {};
	ui.ipv4OutAvg = {};
	ui.ipv4OutLast = {};
	ui.ipv4OutMax = {};
	ui.ipv4PrivInAvg = {};
	ui.ipv4PrivInLast = {};
	ui.ipv4PrivInMax = {};
	ui.ipv4PrivOutAvg = {};
	ui.ipv4PrivOutLast = {};
	ui.ipv4PrivOutMax = {};
	ui.ipv4Total = {};
	ui.ipv4TotalIn = {};
	ui.ipv4TotalOut = {};
	ui.ipv6Graph = {};
	ui.ipv6InAvg = {};
	ui.ipv6InLast = {};
	ui.ipv6InMax = {};
	ui.ipv6OutAvg = {};
	ui.ipv6OutLast = {};
	ui.ipv6OutMax = {};
	ui.ipv6PrivInAvg = {};
	ui.ipv6PrivInLast = {};
	ui.ipv6PrivInMax = {};
	ui.ipv6PrivOutAvg = {};
	ui.ipv6PrivOutLast = {};
	ui.ipv6PrivOutMax = {};
	ui.ipv6Total = {};
	ui.ipv6TotalIn = {};
	ui.ipv6TotalOut = {};
	ui.jobProgress = {};
	ui.jobProgressRow = {};
	ui.lastBackup = {};
	ui.lastBackupTime = {};
	ui.linodeLabel = {};
	ui.linodeTag = {};
	ui.linodeTagLink = {};
	ui.loadingConfigs = {};
	ui.loadingDisks = {};
	ui.loadingJobs = {};
	ui.loadingVolumes = {};
	ui.moreJobs = {};
	ui.netUsage = {};
	ui.notifications = {};
	ui.reboot = {};
	ui.serverStatus = {};
	ui.shutDown = {};
	ui.storageFree = {};
	ui.storageTotal = {};
	ui.storageUsed = {};
	ui.swapRateAvg = {};
	ui.swapRateLast = {};
	ui.swapRateMax = {};
	ui.transferMonthly = {};
	ui.transferOverage = {};
	ui.transferUsed = {};
	ui.upgrade = {};
	ui.volumeTable = {};

	// Temporary state
	var state = {};
	state.diskRefresh = false;
	state.eventsComplete = 0;
	state.haveRanges = false;
	state.linodeRefresh = false;
	state.showExtraEvents = false;

	// Button handler for boot button
	var bootLinode = function(event)
	{
		if (!confirm("Boot this Linode?"))
			return;

		var config = getSelectedConfig();
		var request = {};
		if (config)
			request.config_id = config;

		// Reload the page on successful API return
		var callback = function()
		{
			location.reload();
		};

		apiPost("/linode/instances/" + data.params.lid + "/boot", request, callback);
	};

	// Convert an unqualified count into a string with an SI prefix (i.e. bytes to MB/GB/etc)
	var countSI = function(count)
	{
		var prefix = "KMGTPEZY";
		var unit = "";

		for (var i = 0; i < prefix.length; i++) {
			if (count >= 1024) {
				count /= 1024;
				unit = prefix.charAt(i);
			} else {
				break;
			}
		}

		return count.toFixed(2) + " " + unit;
	};

	// Generate a config profile table row
	var createConfigRow = function(config)
	{
		var row = document.createElement("tr");
		row.className = elements.lmcRow;

		// Radio button selector
		var radioCell = document.createElement("td");
		var radioInput = document.createElement("input");
		radioInput.name = elements.configRadioName;
		radioInput.className = elements.configRadioName;
		radioInput.id = elements.configRadioName + "-" + config.id;
		radioInput.type = "radio";
		radioCell.appendChild(radioInput);
		row.appendChild(radioCell);

		// Config profile name and kernel
		var nameCell = document.createElement("td");
		var nameLink = document.createElement("a");
		nameLink.href = "/linodes/config?cid=" + config.id + "&lid=" + data.params.lid;
		if (config.label.length > 41)
			nameLink.innerHTML = config.label.substring(0, 41) + "...";
		else
			nameLink.innerHTML = config.label;
		nameCell.appendChild(nameLink);
		var prefix = document.createElement("span");
		prefix.className = elements.info;
		prefix.innerHTML = " (";
		nameCell.appendChild(prefix);
		var kernel = document.createElement("span");
		kernel.className = elements.info;
		translateKernel(config.kernel, kernel);
		nameCell.appendChild(kernel);
		var suffix = document.createElement("span");
		suffix.className = elements.info;
		suffix.innerHTML = ")";
		nameCell.appendChild(suffix);
		row.appendChild(nameCell);

		// Option links
		var options = document.createElement("td");
		var editLink = document.createElement("a");
		editLink.href = "/linodes/config?cid=" + config.id + "&lid=" + data.params.lid;
		editLink.innerHTML = "Edit";
		var separator = document.createElement("span");
		separator.innerHTML = " | ";
		var removeLink = document.createElement("a");
		removeLink.href = "#";
		removeLink.id = elements.configRemovePrefix + config.id;
		removeLink.innerHTML = "Remove";
		removeLink.addEventListener("click", deleteConfig);
		options.appendChild(editLink);
		options.appendChild(separator);
		options.appendChild(removeLink);
		row.appendChild(options);

		return row;
	};

	// Generate a disk table row
	var createDiskRow = function(disk)
	{
		var row = document.createElement("tr");
		row.className = elements.lmcRow;

		// Disk icon
		var iconCell = document.createElement("td");
		var diskIcon = document.createElement("img");
		diskIcon.className = elements.diskIcon;
		diskIcon.src = elements.diskIconImg;
		iconCell.appendChild(diskIcon);
		row.appendChild(iconCell);

		// Disk name and size
		var nameCell = document.createElement("td");
		var nameLink = document.createElement("a");
		nameLink.href = "/linodes/disk?did=" + disk.id + "&lid=" + data.params.lid;
		nameLink.innerHTML = disk.label;
		var size = document.createElement("span");
		size.className = elements.info;
		size.innerHTML = " (" + disk.size + " MB, " + disk.filesystem + ")";
		nameCell.appendChild(nameLink);
		nameCell.appendChild(size);
		row.appendChild(nameCell);

		// Options links
		var options = document.createElement("td");
		var editLink = document.createElement("a");
		editLink.href = "/linodes/disk?did=" + disk.id + "&lid=" + data.params.lid;
		editLink.innerHTML = "Edit";
		var separator = document.createElement("span");
		separator.innerHTML = " | ";
		var removeLink = document.createElement("a");
		removeLink.href = "#";
		removeLink.id = elements.diskRemovePrefix + disk.id;
		removeLink.innerHTML = "Remove";
		removeLink.addEventListener("click", deleteDisk);
		options.appendChild(editLink);
		options.appendChild(separator);
		options.appendChild(removeLink);
		row.appendChild(options);

		return row;
	};

	// Generate an event table row
	var createEventRow = function(event, extra)
	{
		var row = document.createElement("tr");
		row.id = elements.eventRowPrefix + event.id;
		row.className = elements.lmcRow;
		if (extra)
			row.className += " " + elements.extraEvent;

		// Status cell
		var statusCell = document.createElement("td");
		if (event.status.match(/scheduled|started/)) {
			statusCell.className = elements.jobRunning;
			var spinner = document.createElement("img");
			spinner.src = elements.spinnerImg;
			statusCell.appendChild(spinner);
		} else if (event.status == "failed") {
			var failed = document.createElement("span");
			failed.className = elements.jobFailed;
			failed.innerHTML = "Failed";
			statusCell.appendChild(failed);
		} else if (event.status == "notification") {
			var notice = document.createElement("span");
			notice.className = elements.jobNotice;
			notice.innerHTML = "Notice";
			statusCell.appendChild(notice);
		} else if (event.status == "finished") {
			var success = document.createElement("span");
			success.className = elements.jobSuccess;
			success.innerHTML = "Success";
			statusCell.appendChild(success);
		}
		row.appendChild(statusCell);

		// Details cell
		var detailsCell = document.createElement("td");
		var jobType = document.createElement("span");
		jobType.className = elements.jobType;
		if (eventTitles[event.action])
			jobType.innerHTML = eventTitles[event.action];
		else
			jobType.innerHTML = event.action;
		var jobDetails = document.createElement("span");
		if (event.secondary_entity)
			jobDetails.innerHTML = " - " + event.secondary_entity.label;
		var br = document.createElement("br");
		var jobInfo = document.createElement("span");
		jobInfo.className = elements.jobInfo;
		var eventDate = new Date(event.created + "Z");
		var curDate = new Date();
		jobInfo.innerHTML = "Entered: " + timeString(curDate - eventDate, true);
		if (event.duration)
			jobInfo.innerHTML += " - Took: " + timeString(event.duration * 1000, false);
		else if (event.status != "notification")
			jobInfo.innerHTML += " - Waiting...";
		detailsCell.appendChild(jobType);
		detailsCell.appendChild(jobDetails);
		detailsCell.appendChild(br);
		detailsCell.appendChild(jobInfo);
		row.appendChild(detailsCell);

		// Progress cell
		var progressCell = document.createElement("td");
		if (event.percent_complete && event.percent_complete != 100)
			progressCell.innerHTML = event.percent_complete + "%";
		if (event.time_remaining) {
			if (progressCell.innerHTML.length)
				progressCell.innerHTML += ", ";
			var times = event.time_remaining.split(":");
			var ms = 0;
			ms += parseInt(times[0]) * 3600000;
			ms += parseInt(times[1]) * 60000;
			ms += parseInt(times[2]) * 1000;
			progressCell.innerHTML += timeString(ms, false) + " to go";
		}
		if (event.rate) {
			if (progressCell.innerHTML.length)
				progressCell.innerHTML += ", ";
			progressCell.innerHTML += event.rate;
		}
		row.appendChild(progressCell);

		return row;
	};

	// Generate a volume table row
	var createVolumeRow = function(volume)
	{
		var row = document.createElement("tr");
		row.className = elements.lmcRow;

		// Disk icon
		var iconCell = document.createElement("td");
		var diskIcon = document.createElement("img");
		diskIcon.className = elements.diskIcon;
		diskIcon.src = elements.diskIconImg;
		iconCell.appendChild(diskIcon);
		row.appendChild(iconCell);

		// Volume name and size
		var nameCell = document.createElement("td");
		var nameLink = document.createElement("a");
		nameLink.href = "/volumes/settings?vid=" + volume.id;
		nameLink.innerHTML = volume.label;
		var size = document.createElement("span");
		size.className = elements.info;
		size.innerHTML = " (" + volume.size + " GiB)";
		nameCell.appendChild(nameLink);
		nameCell.appendChild(size);
		row.appendChild(nameCell);

		// Options links
		var options = document.createElement("td");
		var editLink = document.createElement("a");
		editLink.href = "/volumes/settings?vid=" + volume.id;
		editLink.innerHTML = "Edit";
		var separator = document.createElement("span");
		separator.innerHTML = " | ";
		var cloneLink = document.createElement("a");
		cloneLink.href = "/volumes/clone?vid=" + volume.id;
		cloneLink.innerHTML = "Clone";
		var detachLink = document.createElement("a");
		detachLink.href = "/volumes/detach?vid=" + volume.id;
		detachLink.innerHTML = "Detach";
		var removeLink = document.createElement("a");
		removeLink.href = "/volumes/remove?vid=" + volume.id;
		removeLink.innerHTML = "Remove";
		options.appendChild(editLink);
		options.appendChild(separator);
		options.appendChild(cloneLink);
		options.appendChild(separator.cloneNode(true));
		options.appendChild(detachLink);
		options.appendChild(separator.cloneNode(true));
		options.appendChild(removeLink);
		row.appendChild(options);

		return row;
	};

	// Handler for config delete
	var deleteConfig = function(event)
	{
		if (!confirm("Delete this Configuration Profile?"))
			return;

		var cid = event.currentTarget.id.substring(elements.configRemovePrefix.length);
		apiDelete("/linode/instances/" + data.params.lid + "/configs/" + cid, function()
		{
			location.reload();
		});
	};

	// Handler for disk delete
	var deleteDisk = function(event)
	{
		var did = parseInt(event.currentTarget.id.substring(elements.diskRemovePrefix.length));
		var disk = null;
		for (var i = 0; i < data.disks.length; i++) {
			if (data.disks[i].id == did) {
				disk = data.disks[i];
				break;
			}
		}

		if (!disk)
			return;

		if (!confirm("Delete " + disk.label + "?"))
			return;

		apiDelete("/linode/instances/" + data.params.lid + "/disks/" + did, function()
		{
			location.reload();
		});
	};

	// Callback for config profile API call
	var displayConfigs = function(response)
	{
		// Add configs to array
		data.configs = data.configs.concat(response.data);

		// Request the next page if there are more
		if (response.page != response.pages) {
			apiGet("/linode/instances/" + data.params.lid + "/configs?page=" + (response.page + 1), displayConfigs, null);
			return;
		}

		// Remove loading row
		ui.loadingConfigs.remove();

		// Insert config profile rows into table
		for (var i = 0; i < data.configs.length; i++)
			ui.configTable.appendChild(createConfigRow(data.configs[i]));
	};

	// Callback for linode details API call
	var displayDetails = function(response)
	{
		data.linode = response;

		// Set page title and header stuff
		if (document.title.indexOf("//") == -1)
			document.title += " // " + data.linode.label;
		ui.linodeLabel.innerHTML = data.linode.label;
		if (data.linode.tags.length == 1) {
			ui.linodeTagLink.href = "/linodes?tag=" + data.linode.tags[0];
			ui.linodeTagLink.innerHTML = "(" + data.linode.tags[0] + ")";
			ui.linodeTag.style.display = "inline";
		} else {
			ui.linodeTag.style.display = "none";
		}

		// Set running status
		ui.serverStatus.innerHTML = data.linode.status.charAt(0).toUpperCase() + data.linode.status.slice(1).replace(/_/g, " ");
		if (data.linode.status == "running") {
			ui.shutDown.disabled = false;
			ui.shutDown.style.display = "block";
		} else {
			ui.shutDown.style.display = "none";
		}
		if (data.linode.status.match(/offline|provisioning|migrating|rebuilding|restoring|shutting_down|resizing/)) {
			ui.reboot.style.display = "none";
			ui.boot.disabled = false;
			ui.boot.style.display = "inline";
		} else if (data.linode.status != "cloning") {
			ui.boot.style.display = "none";
			ui.reboot.disabled = false;
			ui.reboot.style.display = "inline";
		}

		// Update storage info
		displayStorage();

		// Set backup status
		if (data.linode.backups.enabled) {
			ui.backups.innerHTML = "Enabled!";
			ui.backups.className += " " + elements.backupsEnabled;
			if (data.linode.backups.last_successful) {
				var backupDate = new Date(data.linode.backups.last_successful + "Z");
				var now = new Date();
				ui.lastBackupTime.innerHTML = timeString(now - backupDate, true);
				ui.lastBackup.style.display = "block";
			}
		} else {
			ui.backups.innerHTML = "";
			var text = document.createElement("span");
			text.innerHTML = "No - ";
			var backupLink = document.createElement("a");
			backupLink.href = "/linodes/backups_enable?lid=" + data.params.lid;
			backupLink.innerHTML = "Enable";
			backups.appendChild(text);
			backups.appendChild(backupLink);
		}

		// Get plan info
		if (data.linode.type && !data.plan.id)
			apiGet("/linode/types/" + data.linode.type, displayPlan, null);

		// Populate graph range picker
		if (!state.haveRanges) {
			var months = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
			var created = new Date(data.linode.created + "Z");
			var now = new Date();
			var last30 = document.createElement("option");
			last30.value = "/" + now.getFullYear() + "/" + (now.getMonth() + 1).toString().padStart(2, "0");
			last30.innerHTML = "Last 30 Days";
			ui.graphRange.appendChild(last30);

			while (!(now.getFullYear() == created.getFullYear() && now.getMonth() == created.getMonth())) {
				if (now.getMonth() == 0) {
					now.setMonth(11);
					now.setFullYear(now.getFullYear() - 1);
				} else {
					now.setMonth(now.getMonth() - 1);
				}

				var yearMonth = document.createElement("option");
				yearMonth.value = "/" + now.getFullYear() + "/" + (now.getMonth() + 1).toString().padStart(2, "0");
				yearMonth.innerHTML = months[now.getMonth()] + " " + now.getFullYear();
				ui.graphRange.appendChild(yearMonth);
			}

			state.haveRanges = true;
		}

		state.linodeRefresh = false;
	};

	// Callback for disks API call
	var displayDisks = function(response)
	{
		// Add disks to array
		data.disks = data.disks.concat(response.data);

		// Request the next page if there are more
		if (response.page != response.pages) {
			apiGet("/linode/instances/" + data.params.lid + "/disks?page=" + (response.page + 1), displayDisks, null);
			return;
		}

		// Remove loading row
		ui.loadingDisks.remove();

		// Update storage info
		displayStorage();

		// Insert disk rows into table
		ui.diskTable.innerHTML = "";
		for (var i = 0; i < data.disks.length; i++)
			ui.diskTable.appendChild(createDiskRow(data.disks[i]));

		state.diskRefresh = false;
	};

	// Callback for events API call
	var displayEvents = function(response)
	{
		// Only collect a max of 8 finished jobs
		for (var i = 0; i < response.data.length && state.eventsComplete < 8; i++) {
			if (response.data[i].status.match(/failed|finished|notification/))
				state.eventsComplete++;
			data.events.push(response.data[i]);
		}

		// Request the next page if there are more
		if (state.eventsComplete < 8 && response.page != response.pages) {
			var filter = {
				"entity.type": "linode",
				"entity.id": parseInt(data.params.lid)
			};
			apiGet("/account/events?page=" + (response.page + 1), displayEvents, filter);
			return;
		}

		// Remove loading row
		ui.loadingJobs.remove();

		// Insert events into table and compute total progress
		var progress = 0;
		var totalProgress = 0;
		for (var i = 0; i < data.events.length; i++) {
			var extra = (data.events[i].status.match(/failed|finished|notification/) && i >= 4);
			ui.eventTable.appendChild(createEventRow(data.events[i], extra));
			if (!data.events[i].status.match(/failed|finished|notification/)) {
				totalProgress += 100;
				progress += data.events[i].percent_complete;
				// Set refresh timer for event
				window.setTimeout(getEvent, settings.refreshRate, data.events[i].id);
			}
		}

		// If there are ongoing events, show the progress bar
		if (totalProgress) {
			ui.jobProgress.max = totalProgress;
			ui.jobProgress.value = progress;
			ui.jobProgress.innerHTML = (progress / totalProgress * 100).toFixed(0) + "%";
			ui.jobProgress.title = ui.jobProgress.innerHTML;
			ui.jobProgressRow.style.display = "table-row";
		}
	};

	// Callback for notifications API call
	var displayNotifications = function(response)
	{
		// Add notifications to array
		data.notifications = data.notifications.concat(response.data);

		// Request the next page if there are more pages
		if (response.page != response.pages) {
			apiGet("/account/notifications?page=" + (response.page + 1), displayNotifications, null);
			return;
		}

		// Display notifications
		for (var i = 0; i < data.notifications.length; i++) {
			if (!data.notifications[i].entity || data.notifications[i].entity.type != "linode" || data.notifications[i].entity.id != data.params.lid)
				continue;

			if (data.notifications[i].type == "maintenance") {
				var now = new Date();
				var maintStart = new Date(data.notifications[i].when + "Z");
				data.notifications[i].label = "Maintenance Scheduled";
				data.notifications[i].message = "This Linode's physical host will be undergoing maintenance on " + maintStart.toLocaleString() + " (in " + timeString(maintStart - now, false) + ").";
				data.notifications[i].message += " During this time, your Linode will be shut down and remain offline, then returned to its last state (running or powered off).";
				data.notifications[i].message += " For more information, please see your open support tickets.";
			}

			if (data.notifications[i].type == "migration_scheduled") {
				var now = new Date();
				var migrateStart = new Date(data.notifications[i].when + "Z");
				data.notifications[i].message += " If no action is taken, the migration will start automatically on " + migrateStart.toLocaleString() + " (in " + timeString(migrateStart - now, false) + ").";
			}

			var notification = document.createElement("div");
			notification.className = elements.notification;
			var header = document.createElement("h1");
			header.innerHTML = data.notifications[i].label;
			notification.appendChild(header);
			if (data.notifications[i].type == "migration_pending" || data.notifications[i].type == "migration_scheduled") {
				var migrateButton = document.createElement("button");
				migrateButton.type = "button";
				migrateButton.innerHTML = "Migrate " + data.notifications[i].entity.label + " NOW";
				migrateButton.addEventListener("click", initiateMigration);
				notification.appendChild(migrateButton);
			}
			var body = document.createElement("p");
			body.innerHTML = data.notifications[i].message;
			notification.appendChild(body);
			ui.notifications.appendChild(notification);
		}
	};

	// Callback for linode plan API call
	var displayPlan = function(response)
	{
		data.plan = response;

		// Display the upgrade banner if one is available
		if (data.plan.successor)
			ui.upgrade.style.display = "block";
	};

	// Show stats graphs
	var displayStats = function(response)
	{
		// Insert dummy points in case of blank data
		if (!response.data.cpu.length)
			response.data.cpu = [[0,0]];
		if (!response.data.io.io.length)
			response.data.io.io = [[0,0]];
		if (!response.data.io.swap.length)
			response.data.io.swap = [[0,0]];
		if (!response.data.netv4.private_out.length)
			response.data.netv4.private_out = [[0,0]];
		if (!response.data.netv4.private_in.length)
			response.data.netv4.private_in = [[0,0]];
		if (!response.data.netv4.out.length)
			response.data.netv4.out = [[0,0]];
		if (!response.data.netv4.in.length)
			response.data.netv4.in = [[0,0]];
		if (!response.data.netv6.private_out.length)
			response.data.netv6.private_out = [[0,0]];
		if (!response.data.netv6.private_in.length)
			response.data.netv6.private_in = [[0,0]];
		if (!response.data.netv6.out.length)
			response.data.netv6.out = [[0,0]];
		if (!response.data.netv6.in.length)
			response.data.netv6.in = [[0,0]];

		data.stats.cpu = [{
			"color": "#03C",
			"fill": false,
			"points": response.data.cpu
		}];
		data.stats.io = [
			{
				"color": "#FFD04B",
				"fill": true,
				"points": response.data.io.io
			},
			{
				"color": "#FA373E",
				"fill": false,
				"points": response.data.io.swap
			}
		];
		data.stats.netv4 = [
			{
				"color": "#FF9",
				"fill": true,
				"points": response.data.netv4.private_out
			},
			{
				"color": "#C09",
				"fill": false,
				"points": response.data.netv4.private_in
			},
			{
				"color": "#32CD32",
				"fill": true,
				"points": response.data.netv4.out
			},
			{
				"color": "#03C",
				"fill": false,
				"points": response.data.netv4.in
			}
		];
		data.stats.netv6 = [
			{
				"color": "#FF9",
				"fill": true,
				"points": response.data.netv6.private_out
			},
			{
				"color": "#C09",
				"fill": false,
				"points": response.data.netv6.private_in
			},
			{
				"color": "#32CD32",
				"fill": true,
				"points": response.data.netv6.out
			},
			{
				"color": "#03C",
				"fill": false,
				"points": response.data.netv6.in
			}
		];

		// Draw graphs
		drawSeries(data.stats.cpu, ui.cpuGraph);
		drawSeries(data.stats.io, ui.ioGraph);
		drawSeries(data.stats.netv4, ui.ipv4Graph);
		drawSeries(data.stats.netv6, ui.ipv6Graph);

		// Compute traffic totals
		var ipv4Out = data.stats.netv4[0].avg * (data.stats.netv4[0].points[data.stats.netv4[0].points.length-1][0] - data.stats.netv4[0].points[0][0]) / 1000;
		ipv4Out += data.stats.netv4[2].avg * (data.stats.netv4[2].points[data.stats.netv4[2].points.length-1][0] - data.stats.netv4[2].points[0][0]) / 1000;
		ipv4Out /= 8;
		var ipv4In = data.stats.netv4[1].avg * (data.stats.netv4[1].points[data.stats.netv4[1].points.length-1][0] - data.stats.netv4[1].points[0][0]) / 1000;
		ipv4In += data.stats.netv4[3].avg * (data.stats.netv4[3].points[data.stats.netv4[3].points.length-1][0] - data.stats.netv4[3].points[0][0]) / 1000;
		ipv4In /= 8;
		var ipv6Out = data.stats.netv6[0].avg * (data.stats.netv6[0].points[data.stats.netv6[0].points.length-1][0] - data.stats.netv6[0].points[0][0]) / 1000;
		ipv6Out += data.stats.netv6[2].avg * (data.stats.netv6[2].points[data.stats.netv6[2].points.length-1][0] - data.stats.netv6[2].points[0][0]) / 1000;
		ipv6Out /= 8;
		var ipv6In = data.stats.netv6[1].avg * (data.stats.netv6[1].points[data.stats.netv6[1].points.length-1][0] - data.stats.netv6[1].points[0][0]) / 1000;
		ipv6In += data.stats.netv6[3].avg * (data.stats.netv6[3].points[data.stats.netv6[3].points.length-1][0] - data.stats.netv6[3].points[0][0]) / 1000;
		ipv6In /= 8;

		// Update tables
		ui.cpuMax.innerHTML = data.stats.cpu[0].max + "%";
		ui.cpuAvg.innerHTML = data.stats.cpu[0].avg.toFixed(2) + "%";
		ui.cpuLast.innerHTML = data.stats.cpu[0].points[data.stats.cpu[0].points.length - 1][1] + "%";
		ui.ioRateMax.innerHTML = data.stats.io[0].max;
		ui.ioRateAvg.innerHTML = data.stats.io[0].avg.toFixed(2);
		ui.ioRateLast.innerHTML = data.stats.io[0].points[data.stats.io[0].points.length - 1][1];
		ui.swapRateMax.innerHTML = data.stats.io[1].max;
		ui.swapRateAvg.innerHTML = data.stats.io[1].avg.toFixed(2);
		ui.swapRateLast.innerHTML = data.stats.io[1].points[data.stats.io[1].points.length - 1][1];
		ui.ipv4PrivOutMax.innerHTML = countSI(data.stats.netv4[0].max) + "b/s";
		ui.ipv4PrivOutAvg.innerHTML = countSI(data.stats.netv4[0].avg) + "b/s";
		ui.ipv4PrivOutLast.innerHTML = countSI(data.stats.netv4[0].points[data.stats.netv4[0].points.length - 1][1]) + "b/s";
		ui.ipv4PrivInMax.innerHTML = countSI(data.stats.netv4[1].max) + "b/s";
		ui.ipv4PrivInAvg.innerHTML = countSI(data.stats.netv4[1].avg) + "b/s";
		ui.ipv4PrivInLast.innerHTML = countSI(data.stats.netv4[1].points[data.stats.netv4[1].points.length - 1][1]) + "b/s";
		ui.ipv4OutMax.innerHTML = countSI(data.stats.netv4[2].max) + "b/s";
		ui.ipv4OutAvg.innerHTML = countSI(data.stats.netv4[2].avg) + "b/s";
		ui.ipv4OutLast.innerHTML = countSI(data.stats.netv4[2].points[data.stats.netv4[2].points.length - 1][1]) + "b/s";
		ui.ipv4InMax.innerHTML = countSI(data.stats.netv4[3].max) + "b/s";
		ui.ipv4InAvg.innerHTML = countSI(data.stats.netv4[3].avg) + "b/s";
		ui.ipv4InLast.innerHTML = countSI(data.stats.netv4[3].points[data.stats.netv4[3].points.length - 1][1]) + "b/s";
		ui.ipv4TotalIn.innerHTML = countSI(ipv4In) + "B";
		ui.ipv4TotalOut.innerHTML = countSI(ipv4Out) + "B";
		ui.ipv4Total.innerHTML = countSI(ipv4In + ipv4Out) + "B";
		ui.ipv6PrivOutMax.innerHTML = countSI(data.stats.netv6[0].max) + "b/s";
		ui.ipv6PrivOutAvg.innerHTML = countSI(data.stats.netv6[0].avg) + "b/s";
		ui.ipv6PrivOutLast.innerHTML = countSI(data.stats.netv6[0].points[data.stats.netv6[0].points.length - 1][1]) + "b/s";
		ui.ipv6PrivInMax.innerHTML = countSI(data.stats.netv6[1].max) + "b/s";
		ui.ipv6PrivInAvg.innerHTML = countSI(data.stats.netv6[1].avg) + "b/s";
		ui.ipv6PrivInLast.innerHTML = countSI(data.stats.netv6[1].points[data.stats.netv6[1].points.length - 1][1]) + "b/s";
		ui.ipv6OutMax.innerHTML = countSI(data.stats.netv6[2].max) + "b/s";
		ui.ipv6OutAvg.innerHTML = countSI(data.stats.netv6[2].avg) + "b/s";
		ui.ipv6OutLast.innerHTML = countSI(data.stats.netv6[2].points[data.stats.netv6[2].points.length - 1][1]) + "b/s";
		ui.ipv6InMax.innerHTML = countSI(data.stats.netv6[3].max) + "b/s";
		ui.ipv6InAvg.innerHTML = countSI(data.stats.netv6[3].avg) + "b/s";
		ui.ipv6InLast.innerHTML = countSI(data.stats.netv6[3].points[data.stats.netv6[3].points.length - 1][1]) + "b/s";
		ui.ipv6TotalIn.innerHTML = countSI(ipv6In) + "B";
		ui.ipv6TotalOut.innerHTML = countSI(ipv6Out) + "B";
		ui.ipv6Total.innerHTML = countSI(ipv6In + ipv6Out) + "B";

		ui.graphRange.disabled = false;
	};

	// Show storage totals
	var displayStorage = function()
	{
		if (!data.linode.specs)
			return;

		ui.storageTotal.innerHTML = data.linode.specs.disk + " MB";
		var storageUsed = 0;
		for (var i = 0; i < data.disks.length; i++)
			storageUsed += data.disks[i].size;
		ui.storageUsed.innerHTML = storageUsed + " MB";
		ui.storageFree.innerHTML = (data.linode.specs.disk - storageUsed) + " MB";
		ui.diskUsage.value = (storageUsed / data.linode.specs.disk * 100).toFixed(0);
		ui.diskUsage.innerHTML = ui.diskUsage.value + "%";
		ui.diskUsage.title = ui.diskUsage.innerHTML;
	};

	// Callback for network transfer API call
	var displayTransfer = function(response)
	{
		data.linodeTransfer = response;

		// Display network transfer info
		ui.transferMonthly.innerHTML = data.linodeTransfer.quota + " GB";
		ui.transferUsed.innerHTML = countSI(data.linodeTransfer.used) + "B";
		ui.transferOverage.innerHTML = data.linodeTransfer.billable + " GB";
		ui.netUsage.value = ((data.linodeTransfer.used / 1024 / 1024 / 1024) / data.linodeTransfer.quota * 100).toFixed(0);
		ui.netUsage.innerHTML = ui.netUsage.value + "%";
		ui.netUsage.title = ui.netUsage.innerHTML;
	};

	// Callback for volumes API call
	var displayVolumes = function(response)
	{
		// Add volumes to array
		data.volumes = data.volumes.concat(response.data);

		// Request the next page if there are more
		if (response.page != response.pages) {
			apiGet("/linode/instances/" + data.params.lid + "/volumes?page=" + (response.page + 1), displayVolumes, null);
			return;
		}

		// Remove loading row
		ui.loadingVolumes.remove();

		// Insert volume rows into table
		for (var i = 0; i < data.volumes.length; i++)
			ui.volumeTable.appendChild(createVolumeRow(data.volumes[i]));
	};

	// Retrieve the given event from the API
	var getEvent = function(eventID)
	{
		apiGet("/account/events/" + eventID, updateEvent, null);
	};

	// Get selected config profile
	var getSelectedConfig = function()
	{
		var configs = document.getElementsByClassName(elements.configRadioName);
		for (var i = 0; i < configs.length; i++) {
			if (configs[i].checked)
				return parseInt(configs[i].id.replace(elements.configRadioName + "-", ""));
		}

		return 0;
	};

	// Button handler to initiate migration
	var initiateMigration = function(event)
	{
		if (event.currentTarget.disabled)
			return;

		var req = {
			"upgrade": false
		};
		apiPost("/linode/instances/" + data.params.lid + "/migrate", req, function(response)
		{
			location.reload();
		});
	};

	// Button handler for reboot button
	var rebootLinode = function(event)
	{
		if (!confirm("Are you sure you want to issue a Reboot?"))
			return;

		var config = getSelectedConfig();
		var request = {};
		if (config)
			request.config_id = config;

		// Reload the page on successful API return
		var callback = function()
		{
			location.reload();
		};

		apiPost("/linode/instances/" + data.params.lid + "/reboot", request, callback);
	};

	// Initial setup
	var setup = function()
	{
		// Parse URL parameters
		data.params = parseParams();

		// We need a Linode ID, so die if we don't have it
		if (!data.params.lid) {
			alert("No Linode ID supplied!");
			return;
		}

		setupHeader();

		// Update links on page to include proper Linode ID
		var anchors = document.getElementsByTagName("a");
		for (var i = 0; i < anchors.length; i++)
			anchors[i].href = anchors[i].href.replace("lid=0", "lid=" + data.params.lid);

		// Get element references
		for (var i in ui)
			ui[i] = document.getElementById(elements[i]);

		// Attach button handlers
		ui.boot.addEventListener("click", bootLinode);
		ui.moreJobs.addEventListener("click", toggleEvents);
		ui.reboot.addEventListener("click", rebootLinode);
		ui.shutDown.addEventListener("click", shutDownLinode);
		ui.graphRange.addEventListener("input", updateGraphs);

		// Set graph resolutions
		ui.cpuGraph.height = ui.cpuGraph.clientHeight;
		ui.cpuGraph.width = ui.cpuGraph.clientWidth;
		ui.ioGraph.height = ui.ioGraph.clientHeight;
		ui.ioGraph.width = ui.ioGraph.clientWidth;
		ui.ipv4Graph.height = ui.ipv4Graph.clientHeight;
		ui.ipv4Graph.width = ui.ipv4Graph.clientWidth;
		ui.ipv6Graph.height = ui.ipv6Graph.clientHeight;
		ui.ipv6Graph.width = ui.ipv6Graph.clientWidth;

		// Get data from the API
		apiGet("/linode/instances/" + data.params.lid, displayDetails, null);
		apiGet("/linode/instances/" + data.params.lid + "/configs", displayConfigs, null);
		apiGet("/linode/instances/" + data.params.lid + "/disks", displayDisks, null);
		apiGet("/linode/instances/" + data.params.lid + "/volumes", displayVolumes, null);
		apiGet("/linode/instances/" + data.params.lid + "/transfer", displayTransfer, null);
		var filter = {
			"entity.type": "linode",
			"entity.id": parseInt(data.params.lid)
		};
		apiGet("/account/events", displayEvents, filter);
		apiGet("/account/notifications", displayNotifications, null);
		apiGet("/linode/instances/" + data.params.lid + "/stats", displayStats, null);
	};

	// Button handler for shutdown button
	var shutDownLinode = function(event)
	{
		if (!confirm("Are you sure you want to issue a Shutdown?"))
			return;

		// Reload the page on successful API return
		var callback = function()
		{
			location.reload();
		};

		apiPost("/linode/instances/" + data.params.lid + "/shutdown", {}, callback);
	};

	// Toggle visibility of "extra" events
	var toggleEvents = function(event)
	{
		// Flip
		state.showExtraEvents = !state.showExtraEvents;

		var display = "none";
		if (state.showExtraEvents)
			display = "table-row";

		// Get extra events and show/hide them
		var extras = document.getElementsByClassName(elements.extraEvent);
		for (var i = 0; i < extras.length; i++)
			extras[i].style.display = display;
	};

	// Update an existing event
	var updateEvent = function(event)
	{
		// Update the local copy of the event
		var progress = 0;
		for (var i = 0; i < data.events.length; i++) {
			if (data.events[i].id == event.id) {
				progress = event.percent_complete - data.events[i].percent_complete;
				// Refresh details if event status changed
				if (event.status != data.events[i].status && !state.linodeRefresh && !state.diskRefresh) {
					state.linodeRefresh = true;
					state.diskRefresh = true;
					data.linode = {};
					data.disks = [];
					apiGet("/linode/instances/" + data.params.lid, displayDetails, null);
					apiGet("/linode/instances/" + data.params.lid + "/disks", displayDisks, null);
				}
				data.events[i] = event;
				continue;
			}
		}

		// Generate a new event row and replace the existing one
		var eventRow = document.getElementById(elements.eventRowPrefix + event.id);
		var extra = (eventRow.className.indexOf(elements.extraEvent) != -1);
		eventRow.replaceWith(createEventRow(event, extra));

		// Update progress bar
		ui.jobProgress.value += progress;
		ui.jobProgress.innerHTML = (ui.jobProgress.value / ui.jobProgress.max * 100).toFixed(0) + "%";
		ui.jobProgress.title = ui.jobProgress.innerHTML;
		if (ui.jobProgress.value == ui.jobProgress.max)
			ui.jobProgressRow.style.display = "none";

		// Refresh again if not complete
		if (!event.status.match(/failed|finished|notification/))
			window.setTimeout(getEvent, settings.refreshRate, event.id);
	};

	// Re-populate graphs with selected range
	var updateGraphs = function(event)
	{
		if (event.currentTarget.disabled)
			return;

		apiGet("/linode/instances/" + data.params.lid + "/stats" + ui.graphRange.value, displayStats, null);
		ui.graphRange.disabled = true;
	};

	// Attach onload handler
	window.addEventListener("load", setup);
})();