Move user types to a common file

lib/instance.nix

@@ -1,7 +1,9 @@
 { config, lib, pkgs, ... }:
 
 with lib;
-{
+let
+  user = import ./types/users.nix { inherit lib; };
+in {
   options.instance = with types; {
     hostname = mkOption {
       type = str;
@@ -12,5 +14,71 @@ with lib;
       type = int;
       description = "Timestamp associated with the build. Used for e.g. DNS serials.";
     };
+
+    local-domain = mkOption {
+      type = str;
+      description = "Domain name of the current local host.";
+    };
+
+    local-site = mkOption {
+      type = str;
+      description = "Site name of the current local host.";
+    };
+
+    local-admins = mkOption {
+      type = listOf str;
+      description = "List of users who should have admin access to the local host.";
+    };
+
+    local-groups = mkOption {
+      type = listOf str;
+      description = "List of groups which should be created on the local host.";
+    };
+
+    local-hosts = mkOption {
+      type = listOf str;
+      description = "List of hosts that should be considered local to the current host.";
+    };
+
+    local-users = mkOption {
+      type = attrsOf user.userOpts;
+      description = "List of users who should have access to the local host";
+    };
+  };
+
+  config = let
+    local-host = config.instance.hostname;
+    local-domain = config.fudo.hosts.${local-host}.domain;
+    local-site = config.fudo.hosts.${local-host}.site;
+
+    host-user-list = config.fudo.hosts."${local-host}".local-users;
+    domain-user-list = config.fudo.domains."${local-domain}".local-users;
+    site-user-list = config.fudo.sites."${local-site}".local-users;
+    local-users =
+      getAttrs (host-user-list ++ domain-user-list ++ site-user-list) config.fudo.users;
+
+    host-admin-list = config.fudo.hosts."${local-host}".local-admins;
+    domain-admin-list = config.fudo.domains."${local-domain}".local-admins;
+    site-admin-list = config.fudo.sites."${local-site}".local-admins;
+    local-admins = host-admin-list ++ domain-admin-list ++ site-admin-list;
+
+    host-group-list = config.fudo.hosts."${local-host}".local-groups;
+    domain-group-list = config.fudo.domains."${local-domain}".local-groups;
+    site-group-list = config.fudo.sites."${local-site}".local-groups;
+    local-groups =
+      getAttrs (host-group-list ++ domain-group-list ++ site-group-list)
+        config.fudo.groups;
+
+    local-hosts =
+      filterAttrs (host: hostOpts: hostOpts.site == local-site) config.fudo.hosts;
+  in {
+    instance = {
+      local-domain = local-domain;
+      local-site = local-site;
+      local-users = local-users;
+      local-admins = local-admins;
+      local-groups = local-groups;
+      local-hosts = local-hosts;
+    };
   };
 }