feat: massive refactoring...

modules/tools.nix

@@ -0,0 +1,31 @@
+{
+  config,
+  lib,
+  ...
+}:
+let
+  build_ip =
+    arg:
+    (
+      if (!lib.strings.isString arg) then
+        "${config.globals.ip_prefix}${toString arg}"
+      else
+        let
+          id = config.id.${arg};
+          ip = if (id > 1000) then id - 1000 else id;
+        in
+        "${config.globals.ip_prefix}${toString ip}"
+    );
+  build_ip_cidr = arg: "${build_ip arg}/${toString config.globals.cidr}";
+  mask_cidr = build_ip_cidr 0;
+  build_hostname = arg: "${arg}${config.globals.domains.external}";
+in
+{
+  build_ip = build_ip;
+  build_ip_cidr = build_ip_cidr;
+  mask_cidr = mask_cidr;
+  build_hostname = build_hostname;
+
+  loki_addr = "${build_ip "monitoring"}:3100";
+  metrics_addr = "${build_ip "metrics"}:9090";
+}