modules: allow for more modules to be added

1 files changed, 144 insertions, 0 deletions

diff --git a/modules/matrix-appservices/as-options.nix b/modules/matrix-appservices/as-options.nix
new file mode 100644
index 0000000..2afbbbf
--- /dev/null
+++ b/modules/matrix-appservices/as-options.nix
@@ -0,0 +1,144 @@
+{ systemConfig, lib, pkgs, ... }:
+with lib;
+types.submodule ({ config, name, ... }:
+  let
+    inherit (systemConfig.services.matrix-appservices)
+      homeserverDomain;
+
+    asFormats = (import ./as-formats.nix) {
+      inherit name lib pkgs systemConfig;
+      asConfig = config;
+    };
+    asFormat = asFormats.${config.format};
+    settingsFormat = pkgs.formats.json { };
+  in
+  {
+    options = rec {
+
+      format = mkOption {
+        type = types.enum (mapAttrsToList (n: _: n) asFormats);
+        default = "other";
+        description = ''
+          Format of the appservice, used to set option defaults for appservice.
+          This is usually determined by the library the appservice is based on.
+
+          Below are descriptions for each format
+
+        '' + (concatStringsSep "\n" (mapAttrsToList
+          (n: v: "${n}: ${v.description}")
+          asFormats));
+      };
+
+      package = mkOption {
+        type = types.nullOr types.package;
+        default = null;
+        example = "pkgs.mautrix-whatsapp";
+        description = ''
+          The package for the appservice. Used by formats except 'other'.
+          This is unecessary if startupScript is set.
+        '';
+      };
+
+      settings = mkOption rec {
+        type = settingsFormat.type;
+        apply = recursiveUpdate default;
+        default = asFormat.settings or { };
+        defaultText = "Format will attempt to configure database and allow homeserver users";
+        example = literalExpression ''
+          {
+            bridge = {
+              domain = "public-domain.tld";
+              homeserverUrl = "http://public-domain.tld:8008";
+            };
+          }
+        '';
+        description = ''
+          Appservice configuration as a Nix attribute set.
+          All environment variables will be substituted.
+          Including:
+            - $DIR which refers to the appservice's data directory.
+            - $AS_TOKEN, $HS_TOKEN which refers to the Appservice and
+                Homeserver registration tokens.
+
+          Secret tokens, should be specified in serviceConfig.EnvironmentFile
+          instead of this world-readable attribute set.
+
+          Configuration options should match those described as per your appservice's settings
+          Check out the confg sample for this.
+
+        '';
+      };
+
+      registrationData = mkOption {
+        type = settingsFormat.type;
+        default = asFormat.registrationData or {
+          namespaces = {
+            users = [
+              {
+                regex = "@${name}_.*:${homeserverDomain}";
+                exclusive = true;
+              }
+              {
+                regex = "@${name}bot:${homeserverDomain}";
+                exclusive = true;
+              }
+            ];
+          };
+        };
+        defaultText = ''
+          Reserve usernames under the homeserver that start with
+          this appservice's name followed by an _ or "bot"
+        '';
+        description = ''
+          Data to set in the registration file for the appservice. The default
+          set or the format should usually deal with this.
+        '';
+      };
+
+      host = mkOption {
+        type = types.str;
+        default = "localhost";
+        description = ''
+          The host the appservice will listen on.
+          Will need to specified in config, but most formats will do it for you using
+          this option.
+        '';
+      };
+
+      port = mkOption {
+        type = types.port;
+        description = ''
+          The port the appservice will listen on.
+          Will need to specified in config, but most formats will do it for you using
+          this option.
+        '';
+      };
+
+      startupScript = mkOption {
+        type = types.str;
+        default = asFormat.startupScript or "";
+        description = ''
+          Script that starts the appservice.
+          The settings file will be available as $SETTINGS_FILE
+          and the registration file as $REGISTRATION_FILE
+        '';
+      };
+
+      serviceConfig = mkOption rec {
+        type = types.attrs;
+        apply = x: default // x;
+        default = asFormat.serviceConfig or { };
+        description = ''
+          Overrides for settings in the service's serviceConfig
+        '';
+      };
+
+      serviceDependencies = mkOption {
+        type = types.listOf types.str;
+        default = [ ];
+        description = ''
+          Services started before this appservice
+        '';
+      };
+    };
+  })