# TODO: Saved just in case for the dark future.
# в целом просто сделай себе шелл алиас gw-default="sudo ip route del default; sudo ip route add default via айпишник роутера" и шелл алиас gw-vpn="sudo ip route del default; sudo ip route add default via айпишник_впна"
{ container, pkgs, lib, config, ... }: with lib; let
	cfg = config.container.module.zapret;
in {
	options = {
		container.module.zapret = {
			enable = mkEnableOption "FRKN";
			address = mkOption {
				default = "10.1.0.69";
				type    = types.str;
			};
			port = mkOption {
				default = 1080;
				type    = types.int;
			};
			torport = mkOption {
				default = 9150;
				type    = types.int;
			};
		};
	};

	config = mkIf cfg.enable {
		containers.zapret = container.mkContainer cfg {
			forwardPorts = [
				{
					containerPort = cfg.port;
					hostPort      = cfg.port;
					protocol      = "tcp";
				}
				{
					containerPort = cfg.port;
					hostPort      = cfg.port;
					protocol      = "udp";
				}
				{
					containerPort = cfg.torport;
					hostPort      = cfg.torport;
					protocol      = "tcp";
				}
				{
					containerPort = cfg.torport;
					hostPort      = cfg.torport;
					protocol      = "udp";
				}
			];

			config = { ... }: container.mkContainerConfig cfg {
				environment.systemPackages = with pkgs; [ iptables ];

				networking = {
					firewall = {
						extraCommands = ''
							iptables -t mangle -I POSTROUTING -p tcp -m multiport --dports 80,443 -m connbytes --connbytes-dir=original --connbytes-mode=packets --connbytes 1:6 -m mark ! --mark 0x40000000/0x40000000 -j NFQUEUE --queue-num 200 --queue-bypass
						'';
						#iptables -A OUTPUT -p tcp -m tcp --sport 443 --tcp-flags SYN,ACK SYN,ACK -j NFQUEUE --queue-num 200 --queue-bypass
					};
				};

				services = {
					microsocks = {
						enable = true;
						ip     = cfg.address;
						port   = cfg.port;
						disableLogging = true;
						#authUsername
						#outgoingBindIp
						#authOnce
					};

					tor = {
						enable = true;
						openFirewall = true;
						settings = let
							exclude = "{RU},{UA},{BY},{KZ},{CN},{??}";
						in {
							ExcludeExitNodes = exclude;
							ExcludeNodes     = exclude;
							#DNSPort = dnsport;
							UseBridges = true;
							ClientTransportPlugin = "obfs4 exec ${pkgs.obfs4}/bin/lyrebird";
							Bridge = [
								"obfs4 94.103.89.153:4443 5617848964FD6546968B5BF3FFA6C11BCCABE58B cert=tYsmuuTe9phJS0Gh8NKIpkVZP/XKs7gJCqi31o8LClwYetxzFz0fQZgsMwhNcIlZ0HG5LA iat-mode=0"
								"obfs4 121.45.140.249:12123 0922E212E33B04F0B7C1E398161E8EDE06734F26 cert=3AQ4iJFAzxzt7a/zgXIiFEs6fvrXInXt1Dtr09DgnpvUzG/iiyRTdXYZKSYpI124Zt3ZUA iat-mode=0"
								"obfs4 79.137.11.45:45072 ECA3197D49A29DDECD4ACBF9BCF15E4987B78137 cert=2FKyLWkPgMNCWxBD3cNOTRxJH3XP+HdStPGKMjJfw2YbvVjihIp3X2BCrtxQya9m5II5XA iat-mode=0"
								"obfs4 145.239.31.71:10161 882125D15B59BB82BE66F999056CB676D3F061F8 cert=AnD+EvcBMuQDVM7PwW7NgFAzW1M5jDm7DjQtIIcBSjoyAf1FJ2p535rrYL2Kk8POAd0+aw iat-mode=0"
							];
						};

						client = {
							enable = true;
							#dns.enable = true;
							socksListenAddress = {
								IsolateDestAddr = true;
								addr = cfg.address;
								port = cfg.torport;
							};
						};
					};
				};

				systemd = {
					timers = {
						tor = {
							timerConfig = {
								OnBootSec = 5;
								Unit      = "tor.service";
							};
							wantedBy = [ "timers.target" ];
						};
						zapret = {
							timerConfig = {
								OnBootSec = 5;
								Unit      = "zapret.service";
							};
							wantedBy = [ "timers.target" ];
						};
						routes = {
							timerConfig = {
								OnBootSec = 5;
								Unit      = "routes.service";
							};
							wantedBy = [ "timers.target" ];
						};
					};

					services = {
						tor.wantedBy = lib.mkForce [];
						zapret = {
							description = "FRKN";
							wantedBy = [ ];
							requires = [ "network.target" ];
							path = with pkgs; [ zapret ];
							serviceConfig = {
								ExecStart  = "${pkgs.zapret}/bin/nfqws --pidfile=/run/nfqws.pid --dpi-desync=disorder --dpi-desync-ttl=1 --dpi-desync-split-pos=3 --qnum=200";
								Type       = "simple";
								PIDFile    = "/run/nfqws.pid";
								ExecReload = "/bin/kill -HUP $MAINPID";
								Restart    = "always";
								RestartSec = "5s";
							};
						};
						routes = {
							description = "FRKN routes";
							wantedBy = [ ];
							requires = [ "network.target" ];
							path = with pkgs; [ iptables ];
							serviceConfig = {
								ExecStart = "${pkgs.iptables}/bin/iptables -t mangle -I POSTROUTING -p tcp -m multiport --dports 80,443 -m connbytes --connbytes-dir=original --connbytes-mode=packets --connbytes 1:6 -m mark ! --mark 0x40000000/0x40000000 -j NFQUEUE --queue-num 200 --queue-bypass";
								Type = "oneshot";
							};
						};
					};
				};
			};
		};
	};
}