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<%#
 Copyright 2017-2019 Xingwang Liao <kuoruan@gmail.com>
 Licensed to the public under the MIT License.
-%>

<%
	local ipkg = require "luci.model.ipkg"
	local has_ui = false

	local uilist = {
		supported = {
			["ariang"] = "AriaNg",
			["webui-aria2"] = "WebUI-Aria2",
			["yaaw"] = "YAAW"
		},
		installed = {}
	}

	for k in pairs(uilist.supported) do
		if ipkg.installed(k) then
			uilist.installed[#uilist.installed + 1] = k
			has_ui = true
		end
	end
%>

<fieldset class="cbi-section">
	<p id="aria2_status">
		<em><%:Collecting data...%></em>
	</p>
	<% if has_ui then %>
	<p>
		<%:Installed web interface: %>
		<%- for _, v in pairs(uilist.installed) do %>
		<input type="button" class="cbi-button" style="margin: 0 5px;" value="<%=uilist.supported[v]%>" onclick="openWebInterface('<%=v%>');" />
		<%- end %>
	<p>
	<% end %>
</fieldset>

<script type="text/javascript">//<![CDATA[
XHR.poll(5, '<%=url("admin/services/aria2/status")%>', null,
	function(x, data) {
		var tb = document.getElementById('aria2_status');
		if (data && tb) {
			tb.innerHTML = data.running
				? '<%:The Aria2 service is running.%>'
				: '<%:The Aria2 service is not running.%>';
		}
	}
);

function randomString(len) {
	var randomStr = '';
	var restLen = len;
	while ((restLen = len - randomStr.length) > 0) {
		randomStr += Math.random().toString(36).substring(2, 2 + restLen);
	}
	return randomStr;
}

function randomToken() {
	var len = 32;
	var inputLength = prompt('<%:Please input token length:%>', len);
	if (inputLength === null || inputLength === '') {
		return;
	} else if (/^\d+$/.test(inputLength)) {
		len = parseInt(inputLength);
	}

	var secretInput = document.getElementById('cbid.aria2.main.rpc_secret');
	if (secretInput) {
		secretInput.value = randomString(len);
	}
};

function showRPCURL() {
	var portElm = document.getElementById('cbid.aria2.main.rpc_listen_port');
	var authMethodElm = document.getElementById('cbid.aria2.main.rpc_auth_method');
	var useWSElm = document.getElementById('cbid.aria2.main._use_ws');
	var secureElm = document.getElementById('cbid.aria2.main.rpc_secure');

	var port = (portElm && /^\d+$/.test(portElm.value)) ? parseInt(portElm.value) : 6800;
	var authMethod = (authMethodElm && authMethodElm.value) ? authMethodElm.value : "none";
	var useWS = (useWSElm && useWSElm.checked) ? true : false;
	var secure = (secureElm && secureElm.checked) ? true : false;

	var protocol = useWS
		? (secure ? 'wss' : 'ws')
		: (secure ? 'https' : 'http');
	var url = protocol + "://";

	if (authMethod == 'token') {
		var authToken = document.getElementById('cbid.aria2.main.rpc_secret').value;
		url += 'token:' + authToken + '@';
	} else if (authMethod == 'user_pass') {
		var authUser = document.getElementById('cbid.aria2.main.rpc_user').value;
		var authPasswd = document.getElementById('cbid.aria2.main.rpc_passwd').value;
		url += authUser + ':' + authPasswd + '@';
	}
	url += window.location.hostname + ':' + port + '/jsonrpc';
	var rpcUrlElm = document.getElementById('cbid.aria2.main._rpc_url');

	if (rpcUrlElm) {
		rpcUrlElm.value = url;
	} else {
		alert(url)
	}
};

function openWebInterface(path) {
	var host = window.location.host;
	var protocol = window.location.protocol;
	window.open(protocol + '//' + host + '/' + path);
};
//]]></script>