trivionomicon: athena-bccr: add idopte cache server

modules/athena-bccr/sys.nix

@@ -1,4 +1,5 @@
 {
+  config,
   pkgs,
   lib,
   cfg,
@@ -51,11 +52,43 @@ in {
   services = {
     pcscd.enable = true;
 
-    udev.extraRules = ''
+    udev.extraRules =
+      lib.optionalString (vendor == "athena") ''
         # Athena Smartcard Solutions, Inc. ASEDrive V3CR
         ATTRS{idVendor}=="0dc3", ATTRS{idProduct}=="1004", MODE="660", GROUP="${cfg.group}", TAG+="uaccess"
+      ''
+      + lib.optionalString (vendor == "idopte") ''
+        # Bit4id Srl miniLector-s
+        ACTION=="add",    SUBSYSTEM=="usb", ENV{PRODUCT}=="25dd/1101*", RUN+="${config.systemd.package}/bin/systemctl start --no-block idopte-reader.target"
+        ACTION=="remove", SUBSYSTEM=="usb", ENV{PRODUCT}=="25dd/1101*", RUN+="${config.systemd.package}/bin/systemctl stop --no-block idopte-reader.target"
       '';
   };
 
+  systemd = lib.mkIf (vendor == "idopte") {
+    #TODO: make this run as a non-root user
+    services.idopte-cache = {
+      description = "Idopte cache server";
+
+      after = ["smartcard.target"];
+      bindsTo = ["idopte-reader.target"];
+      wantedBy = ["idopte-reader.target"];
+
+      serviceConfig = {
+        Type = "forking";
+        PIDFile = "/run/idoCacheSrv.pid";
+        RuntimeDirectory = "idoss";
+
+        ExecStart = "${scmiddleware}/idocachesrv";
+      };
+    };
+
+    targets.idopte-reader = {
+      description = "Idopte USB reader inserted";
+
+      wants = ["smartcard.target"];
+      before = ["smartcard.target"];
+    };
+  };
+
   users.groups.${cfg.group} = {};
 }