toggleable dark theme

looks bad but that's because I don't want to spend much time on it because it looks bad (dark themes in general usually)
I also plan to add more themes and user generated themes

src/main/java/eu/m724/talkpages/IndexResource.java

@@ -2,20 +2,28 @@ package eu.m724.talkpages;
 
 import io.quarkus.qute.CheckedTemplate;
 import io.quarkus.qute.TemplateInstance;
+import io.vertx.core.http.Cookie;
+import io.vertx.core.http.HttpServerRequest;
 import jakarta.inject.Inject;
 import jakarta.ws.rs.GET;
 import jakarta.ws.rs.Path;
 import jakarta.ws.rs.Produces;
 import jakarta.ws.rs.QueryParam;
 import jakarta.ws.rs.core.MediaType;
+import jakarta.ws.rs.core.NewCookie;
 import jakarta.ws.rs.core.Response;
 import org.jboss.resteasy.reactive.RestResponse.Status;
 
+import java.net.URI;
+
 @Path("/")
 public class IndexResource {
     @Inject
     RedirectService redirectService;
 
+    @Inject
+    HttpServerRequest request;
+
     @CheckedTemplate
     public static class Templates {
         public static native TemplateInstance index();
@@ -27,6 +35,29 @@ public class IndexResource {
         return Templates.index();
     }
 
+    @GET
+    @Path("/theme")
+    public Response toggleDark() {
+        Cookie cookie = request.getCookie("dark");
+
+        NewCookie newCookie;
+        if (cookie == null) {
+            newCookie = new NewCookie.Builder("dark")
+                    .path("/")
+                    .value("1")
+                    .maxAge(31560000)
+                    .build();
+        } else {
+            newCookie = new NewCookie.Builder("dark")
+                    .path("/")
+                    .value("0")
+                    .maxAge(0)
+                    .build();
+        }
+
+        return Response.temporaryRedirect(URI.create("/")).cookie(newCookie).build();
+    }
+
     @GET
     @Path("/search")
     public Response search(@QueryParam("query") String query) {

src/main/java/eu/m724/talkpages/Startup.java

@@ -5,6 +5,8 @@ import eu.m724.talkpages.orm.entity.content.Page;
 import eu.m724.talkpages.orm.entity.content.PageRevision;
 import io.quarkus.runtime.LaunchMode;
 import io.quarkus.runtime.StartupEvent;
+import io.vertx.ext.web.Router;
+import io.vertx.ext.web.handler.StaticHandler;
 import jakarta.enterprise.event.Observes;
 import jakarta.inject.Inject;
 import jakarta.inject.Singleton;
@@ -23,6 +25,12 @@ public class Startup {
     @ConfigProperty(name = "talkpages.createExamplePage")
     private boolean createExamplePage;
 
+    void installStaticRoute(@Observes StartupEvent startupEvent, Router router) {
+        router.route()
+                .path("/static/*")
+                .handler(StaticHandler.create("static/"));
+    }
+
     @Transactional
     public void examplePage(@Observes StartupEvent ignoredEvent) {
         if (Account.findById(1) != null) {

src/main/java/eu/m724/talkpages/template/TemplateExtensions.java

@@ -1,7 +1,10 @@
 package eu.m724.talkpages.template;
 
 import io.quarkus.qute.TemplateExtension;
+import io.vertx.core.http.Cookie;
+import io.vertx.core.http.HttpServerRequest;
 import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
 import org.jsoup.Jsoup;
 import org.jsoup.safety.Safelist;
 

src/main/java/eu/m724/talkpages/template/ThemeExtension.java

@@ -0,0 +1,21 @@
+package eu.m724.talkpages.template;
+
+import eu.m724.talkpages.RedirectService;
+import io.quarkus.arc.Arc;
+import io.quarkus.qute.TemplateExtension;
+import io.vertx.core.Vertx;
+import io.vertx.core.http.Cookie;
+import io.vertx.core.http.HttpServerRequest;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.core.Request;
+
+@TemplateExtension(namespace = "theme")
+public class ThemeExtension {
+    public static boolean darkTheme() {
+        // this is bad
+        HttpServerRequest request = Arc.container().instance(HttpServerRequest.class).get();
+        Cookie cookie = request.getCookie("dark");
+
+        return cookie == null || cookie.getValue().equals("0");
+    }
+}

src/main/resources/static/dark.css

@@ -0,0 +1,9 @@
+body {
+    background: #202020;
+    color: white;
+}
+
+a:link { color: #e0d0ff; }
+a:visited { color: #d0c0ff; }
+a:hover { color: #e0e0ff; }
+a:active { color: #e0d0ff; }

src/main/resources/templates/IndexResource/index.html

@@ -13,6 +13,7 @@
         {#else}
             <li><a href="/auth/logout">Logout ({user:name})</a></li>
         {/if}
+        <li><a href="/theme">{#if theme:darkTheme}Light mode{#else}Dark mode{/if}</a></li>
     </ul>
 
     <small>Running <a href="/page/TalkPages">TalkPages</a> version {config:["quarkus.application.version"]}</small>

src/main/resources/templates/layout.html

@@ -4,6 +4,9 @@
         <meta charset="UTF-8" />
         <meta name="viewport" content="width=device-width, initial-scale=1" />
         <!-- TODO opengraph tags and maybe some nice css. also add errors and stuff here -->
+        {#if theme:darkTheme}
+            <link rel="stylesheet" href="/static/dark.css">
+        {/if}
         <title>{#insert pageTitle /}{#if !customTitle??} - TalkPages{/if}</title> <!-- I give up -->
     </head>
     <body>