From a80f9d9d1e3420b7bc8bdc923db445c7e32316f1 Mon Sep 17 00:00:00 2001
From: Astro <astro@spaceboyz.net>
Date: Wed, 10 Nov 2021 00:30:02 +0100
Subject: [PATCH] radiobert: add mlat-client

---
 hosts/radiobert/readsb.nix | 24 +++++++++++++++++++++++-
 overlay/default.nix        |  2 ++
 overlay/mlat-client.nix    | 13 +++++++++++++
 3 files changed, 38 insertions(+), 1 deletion(-)
 create mode 100644 overlay/mlat-client.nix

diff --git a/hosts/radiobert/readsb.nix b/hosts/radiobert/readsb.nix
index beeda6e0..bcd1922d 100644
--- a/hosts/radiobert/readsb.nix
+++ b/hosts/radiobert/readsb.nix
@@ -1,6 +1,9 @@
 { config, pkgs, ... }:
 
 let
+  lat = "51.081";
+  lon = "13.728";
+  altitude = "150";
   statsDir = "/run/adsb-feed";
 in {
   boot.blacklistedKernelModules = [
@@ -18,7 +21,7 @@ in {
   systemd.services.readsb = {
     wantedBy = [ "multi-user.target" ];
     serviceConfig = {
-      ExecStart = "${pkgs.readsb}/bin/readsb --device-type rtlsdr --modeac --aggressive --fix --stats-range --dcfilter --quiet --gain=-10 --lon=13.728 --lat=51.081 --write-json=${statsDir} --net --net-ro-port=30002 --net-sbs-port=30003 --net-bo-port=30005 --net-vrs-port=30006 --net-beast-reduce-interval 1 --net-connector feed.adsbexchange.com,30005,beast_reduce_out --uuid-file=${builtins.toFile "uuid" "68a0e3e1-c866-481c-b0cb-f12ff9e7465f"}";
+      ExecStart = "${pkgs.readsb}/bin/readsb --device-type rtlsdr --modeac --aggressive --fix --stats-range --dcfilter --quiet --gain=-10 --lon=${lon} --lat=${lat} --write-json=${statsDir} --net --net-ro-port=30002 --net-sbs-port=30003 --net-bo-port=30005 --net-vrs-port=30006 --net-beast-reduce-interval 1 --net-connector feed.adsbexchange.com,30005,beast_reduce_out --uuid-file=${builtins.toFile "uuid" "68a0e3e1-c866-481c-b0cb-f12ff9e7465f"}";
       User = "readsb";
       Group = "adsb";
       ProtectSystem = "full";
@@ -29,6 +32,25 @@ in {
     };
   };
 
+  users.users.mlat-client = {
+    isSystemUser = true;
+    group = "adsb";
+  };
+  # Feeds adsbexchange.com, test at https://www.adsbexchange.com/myip/
+  systemd.services.mlat-client = {
+    wantedBy = [ "multi-user.target" ];
+    requires = [ "mlat-client.service" ];
+    serviceConfig = {
+      ExecStart = "${pkgs.mlat-client}/bin/mlat-client --input-type beast --input-connect radiobert.serv.zentralwerk.org:30005 --lat ${lat} --lon ${lon} --alt ${altitude} --user C3D2";
+      User = "mlat-client";
+      Group = "adsb";
+      ProtectSystem = "full";
+      ProtectHome = true;
+      Restart = "always";
+      RestartSec = "10s";
+    };
+  };
+
   users.users.sbs2json = {
     isSystemUser = true;
     group = "adsb";
diff --git a/overlay/default.nix b/overlay/default.nix
index 2a1c3352..dd2c664d 100644
--- a/overlay/default.nix
+++ b/overlay/default.nix
@@ -15,5 +15,7 @@ final: prev:
 
   dump1090-influxdb = import ./dump1090-influxdb { pkgs = prev; };
 
+  mlat-client = prev.python3Packages.callPackage ./mlat-client.nix { };
+
   readsb = prev.callPackage ./readsb.nix { };
 }
diff --git a/overlay/mlat-client.nix b/overlay/mlat-client.nix
new file mode 100644
index 00000000..af20b469
--- /dev/null
+++ b/overlay/mlat-client.nix
@@ -0,0 +1,13 @@
+{ buildPythonApplication, fetchFromGitHub }:
+
+buildPythonApplication rec {
+  pname = "mlat-client";
+  version = "0.3.8";
+
+  src = fetchFromGitHub {
+    owner = "adsbxchange";
+    repo = "mlat-client";
+    rev = "v${version}";
+    sha256 = "0dg554x6wm5wajgb2rz56b383zn7vbmpy1w9cfr8rq99jvyliv7l";
+  };
+}