feat(refactor): WIP 2.0 some progress

lib/server/default.nix

@@ -0,0 +1,5 @@
+{
+  imports = [
+    ./serviceurl
+  ];
+}

lib/server/serviceurl/default.nix

@@ -0,0 +1,23 @@
+{
+  lib,
+  config,
+  ...
+}: let
+  mkServiceUrl' = import ./serviceurl.nix {inherit config;};
+in {
+  options.clib = {
+    server = {
+      mkServiceUrl = lib.mkOption {
+        type = lib.types.function;
+        readOnly = true;
+        description = "Helper function to generate a service URL.";
+      };
+    };
+  };
+
+  config.clib = {
+    server = {
+      mkServiceUrl = mkServiceUrl';
+    };
+  };
+}

lib/server/serviceurl/serviceurl.nix

@@ -0,0 +1,11 @@
+{config}: service: let
+  mainDomain = config.server.networking.domain;
+  tailscaleDomain = "ts.${mainDomain}";
+
+  domain =
+    if service.exposure == "tunnel"
+    then mainDomain
+    else if service.exposure == "tailscale"
+    then tailscaleDomain
+    else (service.domain or mainDomain);
+in "${service.subdomain}.${domain}"