manatee: Add web based reader for komga

hosts/manatee/modules/komga/default.nix

@@ -1,11 +1,13 @@
 {
   inputs,
+  pkgs,
   lib,
   config,
   ...
 }:
 let
   enabled = config.mod.komga.enable;
+  nginxEnabled = config.mod.nginx.enable;
 in
 {
   options = {
@@ -28,10 +30,35 @@ in
       user = "komga";
       group = "storage";
 
-      settings.server.port = 8002;
+      settings = {
+        server.port = 8002;
+        komga."cors.allowed-origins" = [
+          "http://manatee:8888"
+        ];
+      };
+
       openFirewall = true;
     };
 
+    services.nginx = lib.mkIf nginxEnabled {
+      virtualHosts."komga-reader" = {
+        listen = [
+          {
+            addr = "0.0.0.0";
+            port = 8888;
+          }
+        ];
+        root = (pkgs.writeTextDir "komga-reader.html" (builtins.readFile ./komga-reader.html));
+
+        locations."/" = {
+          index = "komga-reader.html";
+          tryFiles = "$uri $uri/ /komga-reader.html";
+        };
+      };
+    };
+
+    networking.firewall.allowedTCPPorts = [ 8888 ];
+
     programs.comictracker = {
       enable = true;
       komgaUrl = "http://manatee:8002";