// Copyright 2022 Stan Grishin <stangri@melmac.ca>
// This code wouldn't have been possible without help from [@vsviridov](https://github.com/vsviridov)

'use strict';
'require form';
'require uci';
'require view';
'require simple-adblock.status as adb';

var pkg = {
	get Name() { return 'simple-adblock'; },
	get URL() { return 'https://docs.openwrt.melmac.net/' + pkg.Name + '/'; }
};

return view.extend({
	load: function () {
		return Promise.all([
			uci.load(pkg.Name)
		]);
	},

	render: function () {
		return Promise.all([
			L.resolveDefault(adb.getPlatformSupport(pkg.Name), {}),
		]).then(function (data) {
			var replyPlatform = data[0];
			var status, m, s, o;

			status = new adb.status();
			m = new form.Map(pkg.Name, _("Simple AdBlock - Configuration"));
			s = m.section(form.NamedSection, 'config', pkg.Name);
			s.tab("tab_basic", _("Basic Configuration"));
			s.tab("tab_advanced", _("Advanced Configuration"));

			o = s.taboption("tab_basic", form.ListValue, "config_update_enabled", _("Automatic Config Update"),
			_("Perform config update before downloading the block/allow-lists."));
			o.value("0", _("Disable"));
			o.value("1", _("Enable"));
			o.default = ("0", _("Disable"));

			o = s.taboption("tab_basic", form.ListValue, "verbosity", _("Output Verbosity Setting"),
			_("Controls system log and console output verbosity."));
			o.value("0", _("Suppress output"));
			o.value("1", _("Some output"));
			o.value("2", _("Verbose output"));
			o.default = ("2", _("Verbose output"));

			o = s.taboption("tab_basic", form.ListValue, "force_dns", _("Force Router DNS"),
			_("Forces Router DNS use on local devices, also known as DNS Hijacking."));
			o.value("0", _("Let local devices use their own DNS servers if set"));
			o.value("1", _("Force Router DNS server to all local devices"));
			o.default = ("1", _("Force Router DNS server to all local devices"));


			if ((replyPlatform[pkg.Name].leds).length) {
				o = s.taboption("tab_basic", form.ListValue, "led", _("LED to indicate status"),
					_("Pick the LED not already used in %sSystem LED Configuration%s.").format("<a href=\"" +
						L.url("admin", "system", "leds") + "\">", "</a>"));
				o.value("", _("none"));
				(replyPlatform[pkg.Name].leds).forEach(element => {
					o.value(element);
				});
			}
			var text = _("DNS resolution option, see the %sREADME%s for details.")
			.format("<a href=\"" + pkg.URL + "#dns-resolution-option\" target=\"_blank\">", "</a>");
			if (!(replyPlatform[pkg.Name].dnsmasq_installed)) {
				text += "<br />" + _("Please note that %s is not supported on this system.").format("<i>dnsmasq.addnhosts</i>");
				text += "<br />" + _("Please note that %s is not supported on this system.").format("<i>dnsmasq.conf</i>");
				text += "<br />" + _("Please note that %s is not supported on this system.").format("<i>dnsmasq.ipset</i>");
				text += "<br />" + _("Please note that %s is not supported on this system.").format("<i>dnsmasq.servers</i>");
			}
			else {
				if (!(replyPlatform[pkg.Name].dnsmasq_ipset_support)) {
					text += "<br />" + _("Please note that %s is not supported on this system.").format("<i>dnsmasq.ipset</i>");
				}
				if (!(replyPlatform[pkg.Name].dnsmasq_nftset_support)) {
					text += "<br />" + _("Please note that %s is not supported on this system.").format("<i>dnsmasq.nftset</i>");
				}
			}
			if (!(replyPlatform[pkg.Name].unbound_installed)) {
				text = text + "<br />" + _("Please note that %s is not supported on this system.")
				.format("<i>unbound.adb_list</i>");
			}

			o = s.taboption("tab_advanced", form.ListValue, "dns", _("DNS Service"), text);
			if (replyPlatform[pkg.Name].dnsmasq_installed) {
				o.value("dnsmasq.addnhosts", _("dnsmasq additional hosts"));
				o.value("dnsmasq.conf", _("dnsmasq config"));
				if (replyPlatform[pkg.Name].dnsmasq_ipset_support) {
					o.value("dnsmasq.ipset", _("dnsmasq ipset"));
				}
				if (replyPlatform[pkg.Name].dnsmasq_nftset_support) {
					o.value("dnsmasq.nftset", _("dnsmasq nft set"));
				}
				o.value("dnsmasq.servers", _("dnsmasq servers file"));
			}
			if (replyPlatform[pkg.Name].unbound_installed) {
				o.value("unbound.adb_list", _("unbound adblock list"));
			}
			o.default = ("dnsmasq.servers", _("dnsmasq servers file"));

			o = s.taboption("tab_advanced", form.ListValue, "ipv6_enabled", _("IPv6 Support"),
				 _("Add IPv6 entries to block-list."));
			o.value("", _("Do not add IPv6 entries"));
			o.value("1", _("Add IPv6 entries"));
			o.depends('dns', 'dnsmasq.addnhosts');
			o.depends('dns', 'dnsmasq.nftset');
			o.default = ("", _("Do not add IPv6 entries"));
			o.rmempty = true;

			o = s.taboption("tab_advanced", form.Value, "download_timeout", _("Download time-out (in seconds)"),
				_("Stop the download if it is stalled for set number of seconds."));
			o.default = "20";
			o.datatype = "range(1,60)";

			o = s.taboption("tab_advanced", form.Value, "curl_max_file_size", _("Curl maximum file size (in bytes)"),
				_("If curl is installed and detected, it would not download files bigger than this."));
			o.default = "";
			o.datatype = "uinteger";
			o.rmempty = true;

			o = s.taboption("tab_advanced", form.Value, "curl_retry", _("Curl download retry"),
				_("If curl is installed and detected, it would retry download this many times on timeout/fail."));
			o.default = "3";
			o.datatype = "range(0,30)";

			o = s.taboption("tab_advanced", form.ListValue, "parallel_downloads", _("Simultaneous processing"),
				_("Launch all lists downloads and processing simultaneously, reducing service start time."));
			o.value("0", _("Do not use simultaneous processing"));
			o.value("1", _("Use simultaneous processing"));
			o.default = ("1", _("Use simultaneous processing"));

			o = s.taboption("tab_advanced", form.ListValue, "compressed_cache", _("Store compressed cache file on router"),
				_("Attempt to create a compressed cache of block-list in the persistent memory."));
			o.value("0", _("Do not store compressed cache"));
			o.value("1", _("Store compressed cache"));
			o.default = ("0", _("Do not store compressed cache"));

			o = s.taboption("tab_advanced", form.Value, "compressed_cache_dir", _("Directory for compressed cache file"),
				_("Directory for compressed cache file of block-list in the persistent memory."));
			o.datatype = 'string';
			o.rmempty = true;
			o.default = ("/etc");
			o.depends('compressed_cache', '1');
			
			o = s.taboption("tab_advanced", form.ListValue, "debug", _("Enable Debugging"),
				_("Enables debug output to /tmp/simple-adblock.log."));
			o.value("0", _("Disable Debugging"));
			o.value("1", _("Enable Debugging"));
			o.default = ("0", _("Disable Debugging"));

			s = m.section(form.NamedSection, "config", "simple-adblock", 
				_("Allowed and Blocked Lists Management"));
			o = s.option(form.Value, "dnsmasq_config_file_url", _("Dnsmasq Config File URL"),
				_("URL to the external dnsmasq config file, see the %sREADME%s for details.")
					.format("<a href=\"" + pkg.URL + "#dnsmasq_config_file_url\" target=\"_blank\">", "</a>"));
			o.addremove = true;
			o.rmempty = true;
			o = s.option(form.DynamicList, "allowed_domain", _("Allowed Domains"),
				_("Individual domains to be allowed."));
			o.depends('dnsmasq_config_file_url', '');
			o.addremove = true;
			o = s.option(form.DynamicList, "allowed_domains_url", _("Allowed Domain URLs"),
				_("URLs to lists of domains to be allowed."));
			o.depends('dnsmasq_config_file_url', '');
			o.addremove = true;
			o = s.option(form.DynamicList, "blocked_adblockplus_url", _("Blocked AdBlockPlus-style URLs"),
				_("URLs to lists of AdBlockPlus-style formatted domains to be blocked."));
			o.depends('dnsmasq_config_file_url', '');
			o.addremove = true;
			o = s.option(form.DynamicList, "blocked_domain", _("Blocked Domains"),
				_("Individual domains to be blocked."));
			o.depends('dnsmasq_config_file_url', '');
			o.addremove = true;
			o = s.option(form.DynamicList, "blocked_domains_url", _("Blocked Domain URLs"),
				_("URLs to lists of domains to be blocked."));
			o.depends('dnsmasq_config_file_url', '');
			o.addremove = true;
			o = s.option(form.DynamicList, "blocked_hosts_url", _("Blocked Hosts URLs"),
				_("URLs to lists of hosts to be blocked."));
			o.depends('dnsmasq_config_file_url', '');
			o.addremove = true;

			return Promise.all([status.render(), m.render()]);
		})
	}
});