<%#
 Copyright 2008-2009 Steven Barth <steven@midlink.org>
 Copyright 2008-2015 Jo-Philipp Wich <jow@openwrt.org>
 Licensed to the public under the Apache License 2.0.
-%>

<%-

	local ip = require "luci.ip"
	local fs = require "nixio.fs"
	local utl = require "luci.util"
	local uci = require "luci.model.uci".cursor()
	local ntm = require "luci.model.network"

	local has_iwinfo = pcall(require, "iwinfo")

	ntm.init(uci)

	function guess_wifi_hw(dev)
		local bands = ""
		local ifname = dev:name()
		local name, idx = ifname:match("^([a-z]+)(%d+)")
		idx = tonumber(idx)

		if has_iwinfo then
			local bl = dev.iwinfo.hwmodelist
			if bl and next(bl) then
				if bl.a then bands = bands .. "a" end
				if bl.b then bands = bands .. "b" end
				if bl.g then bands = bands .. "g" end
				if bl.n then bands = bands .. "n" end
				if bl.ac then bands = bands .. "ac" end
			end

			local hw = dev.iwinfo.hardware_name
			if hw then
				return "%s 802.11%s" %{ hw, bands }
			end
		end

		-- wl.o
		if name == "wl" then
			local name = translatef("Broadcom 802.11%s Wireless Controller", bands)
			local nm   = 0

			local fd = nixio.open("/proc/bus/pci/devices", "r")
			if fd then
				local ln
				for ln in fd:linesource() do
					if ln:match("wl$") then
						if nm == idx then
							local version = ln:match("^%S+%s+%S%S%S%S([0-9a-f]+)")
							name = translatef(
								"Broadcom BCM%04x 802.11 Wireless Controller",
								tonumber(version, 16)
							)

							break
						else
							nm = nm + 1
						end
					end
				end
				fd:close()
			end

			return name

		-- madwifi
		elseif name == "ath" or name == "wifi" then
			return translatef("Atheros 802.11%s Wireless Controller", bands)

		-- ralink
		elseif name == "ra" then
			return translatef("RaLink 802.11%s Wireless Controller", bands)

		-- hermes
		elseif name == "eth" then
			return translate("Hermes 802.11b Wireless Controller")

		-- hostap
		elseif name == "wlan" and fs.stat("/proc/net/hostap/" .. ifname, "type") == "dir" then
			return translate("Prism2/2.5/3 802.11b Wireless Controller")

		-- dunno yet
		else
			return translatef("Generic 802.11%s Wireless Controller", bands)
		end
	end

	local devices = ntm:get_wifidevs()
	local netlist = { }
	local netdevs = { }

	local dev
	for _, dev in ipairs(devices) do
		local net
		for _, net in ipairs(dev:get_wifinets()) do
			netlist[#netlist+1] = net:id()
			netdevs[net:id()] = dev:name()
		end
	end
-%>

<%+header%>

<% if not has_iwinfo then %>
	<div class="errorbox">
		<strong><%:Package libiwinfo required!%></strong><br />
		<%_The <em>libiwinfo-lua</em> package is not installed. You must install this component for working wireless configuration!%>
	</div>
<% end %>

<script type="text/javascript" src="<%=resource%>/cbi.js?v=git-18.123.42193-cc8b99a"></script>
<script type="text/javascript">//<![CDATA[
	var wifidevs = <%=luci.http.write_json(netdevs)%>;

	var is_reconnecting = false;

	function nowrap(s) {
		return s.replace(/ /g, '&#160;');
	}

	function wifirate(bss, rx) {
		var p = rx ? 'rx_' : 'tx_',
		    s = '%.1f <%:Mbit/s%>, %d<%:MHz%>'
					.format(bss[p+'rate'] / 1000, bss[p+'mhz']),
		    ht = bss[p+'ht'], vht = bss[p+'vht'],
			mhz = bss[p+'mhz'], nss = bss[p+'nss'],
			mcs = bss[p+'mcs'], sgi = bss[p+'short_gi'];

		if (ht || vht) {
			if (vht) s += ', VHT-MCS %d'.format(mcs);
			if (nss) s += ', VHT-NSS %d'.format(nss);
			if (ht)  s += ', MCS %s'.format(mcs);
			if (sgi) s += ', <%:Short GI%>';
		}

		return s;
	}

	function wifi_shutdown(id, toggle) {
		var reconnect = (toggle.getAttribute('active') == 'false');

		if (!reconnect && !confirm(String.format('<%:Really shut down network?\nYou might lose access to this device if you are connected via this interface.%>')))
			return;

		is_reconnecting = true;

		var s = document.getElementById('iw-rc-status');
		if (s)
		{
			s.parentNode.style.display = 'block';
			s.innerHTML = '<%:Waiting for changes to be applied...%>';
		}

		for (var net in wifidevs)
		{
			var st = document.getElementById(net + '-iw-status');
			if (st)
				st.innerHTML = '<em><%:Wireless is restarting...%></em>';
		}

		(new XHR()).post('<%=url('admin/network')%>/wireless_' + (reconnect ? 'reconnect' : 'shutdown') + '/' + id, { token: '<%=token%>' },
			function(x)
			{
				if (s)
				{
					s.innerHTML = reconnect
						? '<%:Wireless restarted%>'
						: '<%:Wireless shut down%>';

					window.setTimeout(function() {
						s.parentNode.style.display = 'none';
						is_reconnecting = false;
					}, 1000);
				}
			}
		);
	}

	function wifi_delete(id) {
		if (!confirm('<%:Really delete this wireless network? The deletion cannot be undone!\nYou might lose access to this device if you are connected via this network.%>'))
			return;

		(new XHR()).post('<%=url('admin/network/wireless_delete')%>/' + id, { token: '<%=token%>' },
			function(x) {
				location.href = '<%=url('admin/network/wireless')%>';
			}
		);
	}

	var hosts = <%=luci.http.write_json(luci.sys.net.host_hints())%>;

	XHR.poll(5, '<%=url('admin/network/wireless_status', table.concat(netlist, ","))%>', null,
		function(x, st)
		{
			if (st)
			{
				var assoctable = document.getElementById('iw-assoclist');
				if (assoctable)
					while (assoctable.rows.length > 1)
						assoctable.rows[1].parentNode.removeChild(assoctable.rows[1]);

				var devup = { };
				var rowstyle = 1;

				for( var i = 0; i < st.length; i++ )
				{
					var iw = st[i];
					var is_assoc = (iw.bssid && iw.bssid != '00:00:00:00:00:00' && iw.channel && iw.mode != 'Unknown' && !iw.disabled);
					var p = iw.quality;
					var q = is_assoc ? p : -1;

					var icon;
					if (q < 0)
						icon = "<%=resource%>/icons/signal-none.png";
					else if (q == 0)
						icon = "<%=resource%>/icons/signal-0.png";
					else if (q < 25)
						icon = "<%=resource%>/icons/signal-0-25.png";
					else if (q < 50)
						icon = "<%=resource%>/icons/signal-25-50.png";
					else if (q < 75)
						icon = "<%=resource%>/icons/signal-50-75.png";
					else
						icon = "<%=resource%>/icons/signal-75-100.png";

					if (!devup[wifidevs[iw.id]])
						devup[wifidevs[iw.id]] = is_assoc;

					var sig = document.getElementById(iw.id + '-iw-signal');
					if (sig)
						sig.innerHTML = String.format(
							'<span class="ifacebadge" title="<%:Signal%>: %d <%:dBm%> / <%:Noise%>: %d <%:dBm%>"><img src="%s" /> %d%%</span>',
							iw.signal, iw.noise, icon, p
						);

					var toggle = document.getElementById(iw.id + '-iw-toggle');
					if (toggle)
					{
						if (!iw.disabled)
						{
							toggle.className = 'cbi-button cbi-button-reset';
							toggle.value = '<%:Disable%>';
							toggle.title = '<%:Shutdown this network%>';
						}
						else
						{
							toggle.className = 'cbi-button cbi-button-reload';
							toggle.value = '<%:Enable%>';
							toggle.title = '<%:Activate this network%>';
						}

						toggle.setAttribute('active', !iw.disabled);
					}

					var info = document.getElementById(iw.id + '-iw-status');
					if (info)
					{
						if (is_assoc)
							info.innerHTML = String.format(
								'<strong><%:SSID%>:</strong> %h | ' +
								'<strong><%:Mode%>:</strong> %s<br />' +
								'<strong><%:BSSID%>:</strong> %s | ' +
								'<strong><%:Encryption%>:</strong> %s',
									iw.ssid, iw.mode, iw.bssid,
									iw.encryption ? iw.encryption : '<%:None%>'
							);
						else
							info.innerHTML = String.format(
								'<strong><%:SSID%>:</strong> %h | ' +
								'<strong><%:Mode%>:</strong> %s<br />' +
								'<em>%s</em>',
									iw.ssid || '?', iw.mode,
									is_reconnecting
										? '<em><%:Wireless is restarting...%></em>'
										: '<em><%:Wireless is disabled or not associated%></em>'
							);
					}

					var dev = document.getElementById(wifidevs[iw.id] + '-iw-devinfo');
					if (dev)
					{
						if (is_assoc)
							dev.innerHTML = String.format(
								'<strong><%:Channel%>:</strong> %s (%s <%:GHz%>) | ' +
								'<strong><%:Bitrate%>:</strong> %s <%:Mbit/s%>',
									iw.channel ? iw.channel : '?',
									iw.frequency ? iw.frequency : '?',
									iw.bitrate ? iw.bitrate : '?'
							);
						else
							dev.innerHTML = '';
					}

					if (assoctable)
					{
						var assoclist = [ ];
						for( var bssid in iw.assoclist )
						{
							assoclist.push(iw.assoclist[bssid]);
							assoclist[assoclist.length-1].bssid = bssid;
						}

						assoclist.sort(function(a, b) { a.bssid < b.bssid });

						for( var j = 0; j < assoclist.length; j++ )
						{
							var tr = assoctable.insertRow(-1);
							    tr.className = 'cbi-section-table-row cbi-rowstyle-' + rowstyle;

							var icon;
							var q = (-1 * (assoclist[j].noise - assoclist[j].signal)) / 5;
							if (q < 1)
								icon = "<%=resource%>/icons/signal-0.png";
							else if (q < 2)
								icon = "<%=resource%>/icons/signal-0-25.png";
							else if (q < 3)
								icon = "<%=resource%>/icons/signal-25-50.png";
							else if (q < 4)
								icon = "<%=resource%>/icons/signal-50-75.png";
							else
								icon = "<%=resource%>/icons/signal-75-100.png";

							tr.insertCell(-1).innerHTML = String.format(
								'<span class="ifacebadge" title="%q"><img src="<%=resource%>/icons/wifi.png" /> %h</span>',
								iw.device.name, iw.ifname
							);

							tr.insertCell(-1).innerHTML = nowrap(String.format('%h', iw.ssid ? iw.ssid : '?'));
							tr.insertCell(-1).innerHTML = assoclist[j].bssid;

							var host = hosts[assoclist[j].bssid];
							if (host)
								tr.insertCell(-1).innerHTML = String.format(
									'<div style="max-width:200px;overflow:hidden;text-overflow:ellipsis">%s</div>',
									((host.name && (host.ipv4 || host.ipv6))
										? '%h (%s)'.format(host.name, host.ipv4 || host.ipv6)
										: '%h'.format(host.name || host.ipv4 || host.ipv6)).nobr()
								);
							else
								tr.insertCell(-1).innerHTML = '?';

							tr.insertCell(-1).innerHTML = String.format(
								'<span class="ifacebadge" title="<%:Signal%>: %d <%:dBm%> / <%:Noise%>: %d <%:dBm%> / <%:SNR%>: %d"><img src="%s" /> %d / %d <%:dBm%></span>',
								assoclist[j].signal, assoclist[j].noise, assoclist[j].signal - assoclist[j].noise,
								icon,
								assoclist[j].signal, assoclist[j].noise
							);

							tr.insertCell(-1).innerHTML = nowrap(wifirate(assoclist[j], true)) + '<br />' + nowrap(wifirate(assoclist[j], false));

							rowstyle = (rowstyle == 1) ? 2 : 1;
						}
					}
				}

				if (assoctable && assoctable.rows.length == 1)
				{
					var tr = assoctable.insertRow(-1);
					    tr.className = 'cbi-section-table-row';

					var td = tr.insertCell(-1);
					    td.colSpan = 8;
					    td.innerHTML = '<br /><em><%:No information available%></em>';
				}

				for (var dev in devup)
				{
					var img = document.getElementById(dev + '-iw-upstate');
					if (img)
						img.src = '<%=resource%>/icons/wifi_big' + (devup[dev] ? '' : '_disabled') + '.png';
				}
			}
		}
	);
//]]></script>

<h2 name="content"><%:Wireless Overview%></h2>

<fieldset class="cbi-section" style="display:none">
	<legend><%:Reconnecting interface%></legend>
	<img src="<%=resource%>/icons/loading.gif" alt="<%:Loading%>" style="vertical-align:middle" />
	<span id="iw-rc-status"><%:Waiting for changes to be applied...%></span>
</fieldset>

<div class="cbi-map">

	<% for _, dev in ipairs(devices) do local nets = dev:get_wifinets() %>
	<!-- device <%=dev:name()%> -->
	<fieldset class="cbi-section">
		<table class="cbi-section-table" style="margin:10px; empty-cells:hide">
			<!-- physical device -->
			<tr>
				<td style="width:34px"><img src="<%=resource%>/icons/wifi_big_disabled.png" style="float:left; margin-right:10px" id="<%=dev:name()%>-iw-upstate" /></td>
				<td colspan="2" style="text-align:left">
					<big><strong><%=guess_wifi_hw(dev)%> (<%=dev:name()%>)</strong></big><br />
					<span id="<%=dev:name()%>-iw-devinfo"></span>
				</td>
				<td style="width:310px;text-align:right">
					<form action="<%=url('admin/network/wireless_join')%>" method="post" class="inline">
						<input type="hidden" name="device" value="<%=dev:name()%>" />
						<input type="hidden" name="token" value="<%=token%>" />
						<input type="submit" class="cbi-button cbi-button-find" style="width:100px" title="<%:Find and join network%>" value="<%:Scan%>" />
					</form>
					<form action="<%=url('admin/network/wireless_add')%>" method="post" class="inline">
						<input type="hidden" name="device" value="<%=dev:name()%>" />
						<input type="hidden" name="token" value="<%=token%>" />
						<input type="submit" class="cbi-button cbi-button-add" style="width:100px" title="<%:Provide new network%>" value="<%:Add%>" />
					</form>
				</td>
			</tr>
			<!-- /physical device -->

			<!-- network list -->
			<% if #nets > 0 then %>
				<% for i, net in ipairs(nets) do %>
				<tr class="cbi-section-table-row cbi-rowstyle-<%=1 + ((i-1) % 2)%>">
					<td></td>
					<td class="cbi-value-field" style="vertical-align:middle; padding:3px" id="<%=net:id()%>-iw-signal">
						<span class="ifacebadge" title="<%:Not associated%>"><img src="<%=resource%>/icons/signal-none.png" /> 0%</span>
					</td>
					<td class="cbi-value-field" style="vertical-align:middle; text-align:left; padding:3px" id="<%=net:id()%>-iw-status">
						<em><%:Collecting data...%></em>
					</td>
					<td class="cbi-value-field" style="width:310px;text-align:right">
						<input id="<%=net:id()%>-iw-toggle" type="button" class="cbi-button cbi-button-reload" style="width:100px" onclick="wifi_shutdown('<%=net:id()%>', this)" title="<%:Delete this network%>" value="<%:Enable%>" />
						<input type="button" class="cbi-button cbi-button-edit" style="width:100px" onclick="location.href='<%=net:adminlink()%>'" title="<%:Edit this network%>" value="<%:Edit%>" />
						<input type="button" class="cbi-button cbi-button-remove" style="width:100px" onclick="wifi_delete('<%=net:id()%>')" title="<%:Delete this network%>" value="<%:Remove%>" />
					</td>
				</tr>
				<% end %>
			<% else %>
				<tr class="cbi-section-table-row cbi-rowstyle-2">
					<td></td>
					<td colspan="3" class="cbi-value-field" style="vertical-align:middle; text-align:left; padding:3px">
						<em><%:No network configured on this device%></em>
					</td>
				</tr>
			<% end %>
			<!-- /network list -->
		</table>
	</fieldset>
	<!-- /device <%=dev:name()%> -->
	<% end %>


	<h2><%:Associated Stations%></h2>

	<fieldset class="cbi-section">
		<table class="cbi-section-table valign-middle" style="margin:10px" id="iw-assoclist">
			<tr class="cbi-section-table-titles">
				<th class="cbi-section-table-cell"></th>
				<th class="cbi-section-table-cell"><%:SSID%></th>
				<th class="cbi-section-table-cell"><%:MAC-Address%></th>
				<th class="cbi-section-table-cell"><%:Host%></th>
				<th class="cbi-section-table-cell"><%:Signal%> / <%:Noise%></th>
				<th class="cbi-section-table-cell"><%:RX Rate%> / <%:TX Rate%></th>
			</tr>
			<tr class="cbi-section-table-row cbi-rowstyle-2">
				<td class="cbi-value-field" colspan="6">
					<em><%:Collecting data...%></em>
				</td>
			</tr>
		</table>
	</fieldset>
</div>

<%+footer%>
