Now prompts users to install Meteor in case it isn't installed

src/main/java/de/damcraft/serverseeker/SmallHttp.java

@@ -2,6 +2,7 @@
 
 
 import java.io.IOException;
+import java.io.InputStream;
 import java.net.URI;
 import java.net.http.HttpClient;
 import java.net.http.HttpRequest;
@@ -25,4 +26,36 @@ public static String post(String url, String json) {
             return null;
         }
     }
+
+    public static String get(String url) {
+        HttpClient client = HttpClient.newHttpClient();
+        try {
+            return client.send(HttpRequest.newBuilder()
+                    .uri(URI.create(url))
+                    .GET()
+                    .build(),
+                HttpResponse.BodyHandlers.ofString(StandardCharsets.UTF_8)
+            ).body();
+        }
+        catch (IOException | InterruptedException e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    public static HttpResponse<InputStream> download(String url) {
+        HttpClient client = HttpClient.newHttpClient();
+        try {
+            return client.send(HttpRequest.newBuilder()
+                    .uri(URI.create(url))
+                    .GET()
+                    .build(),
+                HttpResponse.BodyHandlers.ofInputStream()
+            );
+        }
+        catch (IOException | InterruptedException e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
 }

src/main/java/de/damcraft/serverseeker/gui/InstallMeteorScreen.java

@@ -0,0 +1,152 @@
+package de.damcraft.serverseeker.gui;
+
+import com.google.gson.Gson;
+import com.google.gson.JsonObject;
+import de.damcraft.serverseeker.SmallHttp;
+import net.fabricmc.loader.api.FabricLoader;
+import net.minecraft.SharedConstants;
+import net.minecraft.client.gui.DrawContext;
+import net.minecraft.client.gui.screen.Screen;
+import net.minecraft.client.gui.widget.ButtonWidget;
+import net.minecraft.client.gui.widget.TextWidget;
+import net.minecraft.text.Text;
+import net.minecraft.util.Util;
+
+import java.io.InputStream;
+import java.net.http.HttpResponse;
+import java.nio.file.Path;
+import java.util.Optional;
+
+public class InstallMeteorScreen extends Screen {
+    public InstallMeteorScreen() {
+        super(Text.of("Meteor Client is not installed!"));
+    }
+
+    public void render(DrawContext context, int mouseX, int mouseY, float delta) {
+        super.render(context, mouseX, mouseY, delta);
+        context.drawCenteredTextWithShadow(this.textRenderer, this.title, this.width / 2, this.height / 4 - 60 + 20, 16777215);
+    }
+
+    protected void init() {
+        super.init();
+        this.addDrawableChild(ButtonWidget.builder(Text.of("Automatically install Meteor (§arecommended§r)"), (button) -> {
+            String result = SmallHttp.get("https://meteorclient.com/api/stats");
+            if (result == null) {
+                this.clearChildren();
+                // Render error
+                this.addDrawableChild(new TextWidget(
+                    this.width / 2 - 250,
+                    this.height / 4,
+                    500,
+                    20,
+                    Text.of("Failed to get install meteor automatically! Please install it manually."),
+                    this.textRenderer
+                ));
+                this.addDrawableChild(ButtonWidget.builder(Text.of("Open install FAQ"), (button2) -> {
+                    Util.getOperatingSystem().open("https://meteorclient.com/faq/installation");
+                }).dimensions(this.width / 2 - 150, this.height / 4 + 100, 300, 20).build());
+            }
+            Gson gson = new Gson();
+            JsonObject json = gson.fromJson(result, JsonObject.class);
+            String currentVersion = SharedConstants.getGameVersion().getName();
+            String stableVersion = json.get("mc_version").getAsString();
+            String devBuildVersion = json.get("dev_build_mc_version").getAsString();
+            String url;
+            if (currentVersion.equals(stableVersion)) {
+                url = "https://meteorclient.com/api/download";
+            } else if (currentVersion.equals(devBuildVersion)) {
+                url = "https://meteorclient.com/api/download?devBuild=latest";
+            } else {
+                this.clearChildren();
+                // Render error
+                this.addDrawableChild(new TextWidget(
+                    this.width / 2 - 250,
+                    this.height / 4,
+                    500,
+                    20,
+                    Text.of("Failed to find Meteor for your current version."),
+                    this.textRenderer
+                ));
+                this.addDrawableChild(ButtonWidget.builder(Text.of("Open install FAQ"), (button2) -> {
+                    Util.getOperatingSystem().open("https://meteorclient.com/faq/installation");
+                }).dimensions(this.width / 2 - 150, this.height / 4 + 100, 300, 20).build());
+                return;
+            }
+            HttpResponse<InputStream> file = SmallHttp.download(url);
+            if (file == null) {
+                this.clearChildren();
+                // Render error
+                this.addDrawableChild(new TextWidget(
+                    this.width / 2 - 250,
+                    this.height / 4,
+                    500,
+                    20,
+                    Text.of("Failed to download Meteor! Please install it manually."),
+                    this.textRenderer
+                ));
+                this.addDrawableChild(ButtonWidget.builder(Text.of("Open install FAQ"), (button2) -> {
+                    Util.getOperatingSystem().open("https://meteorclient.com/faq/installation");
+                }).dimensions(this.width / 2 - 150, this.height / 4 + 100, 300, 20).build());
+                return;
+            }
+            Optional<String> filenameT= file.headers().firstValue("Content-Disposition");
+            String filename = "meteor-client.jar";
+            if (filenameT.isPresent()) {
+                filename = filenameT.get().split("filename=")[1];
+            }
+            System.out.println(filename);
+            // Get the mods folder
+            Path modsFolder = FabricLoader.getInstance().getGameDir().resolve("mods");
+            if (!modsFolder.toFile().exists()) {
+               this.clearChildren();
+                // Render error
+                this.addDrawableChild(new TextWidget(
+                    this.width / 2 - 250,
+                    this.height / 4,
+                    500,
+                    20,
+                    Text.of("Failed to find mods folder! Please install Meteor manually."),
+                    this.textRenderer
+                ));
+                this.addDrawableChild(ButtonWidget.builder(Text.of("Open install FAQ"), (button2) -> {
+                    Util.getOperatingSystem().open("https://meteorclient.com/faq/installation");
+                }).dimensions(this.width / 2 - 150, this.height / 4 + 100, 300, 20).build());
+            }
+            // Save the file
+            try {
+                java.nio.file.Files.copy(file.body(), modsFolder.resolve(filename));
+            } catch (Exception e) {
+                this.clearChildren();
+                // Render error
+                this.addDrawableChild(new TextWidget(
+                    this.width / 2 - 250,
+                    this.height / 4,
+                    500,
+                    20,
+                    Text.of("Failed to save Meteor! Please install it manually."),
+                    this.textRenderer
+                ));
+                this.addDrawableChild(ButtonWidget.builder(Text.of("Open install FAQ"), (button2) -> {
+                    Util.getOperatingSystem().open("https://meteorclient.com/faq/installation");
+                }).dimensions(this.width / 2 - 150, this.height / 4 + 100, 300, 20).build());
+                return;
+            }
+            // Success message
+            this.clearChildren();
+            this.addDrawableChild(new TextWidget(
+                this.width / 2 - 250,
+                this.height / 4,
+                500,
+                20,
+                Text.of("Successfully installed Meteor! Please restart your game."),
+                this.textRenderer
+            ));
+        }).dimensions(this.width / 2 - 150, this.height / 4 + 100, 300, 20).build());
+        this.addDrawableChild(ButtonWidget.builder(Text.of("Manual installation"), (button) -> {
+            Util.getOperatingSystem().open("https://meteorclient.com/faq/installation");
+        }).dimensions(this.width / 2 - 150, this.height / 4 + 100 + 25, 148, 20).build());
+        this.addDrawableChild(ButtonWidget.builder(Text.translatable("menu.quit"), (button) -> {
+            this.client.scheduleStop();
+        }).dimensions(this.width / 2 + 2, this.height / 4 + 100 + 25, 148, 20).build());
+    }
+}

src/main/java/de/damcraft/serverseeker/mixin/TitleScreenMixin.java

@@ -0,0 +1,22 @@
+package de.damcraft.serverseeker.mixin;
+
+import de.damcraft.serverseeker.gui.InstallMeteorScreen;
+import net.fabricmc.loader.api.FabricLoader;
+import net.minecraft.client.MinecraftClient;
+import net.minecraft.client.gui.screen.TitleScreen;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(TitleScreen.class)
+public class TitleScreenMixin {
+    @Inject(at = @At("HEAD"), method = "init()V", cancellable = true)
+    private void init(CallbackInfo info) {
+        // Check if meteor-client is installed
+        if (!FabricLoader.getInstance().isModLoaded("meteor-client")) {
+            info.cancel();
+            MinecraftClient.getInstance().setScreen(new InstallMeteorScreen());
+        }
+    }
+}

src/main/resources/fabric.mod.json

@@ -35,7 +35,9 @@
   },
   "depends": {
     "java": ">=17",
-    "minecraft": ">=1.20.2",
+    "minecraft": ">=1.20.2"
+  },
+  "recommends": {
     "meteor-client": "*"
   }
 }

src/main/resources/serverseeker.mixins.json

@@ -5,7 +5,8 @@
   "client": [
     "MultiplayerScreenAccessor",
     "MultiplayerScreenMixin",
-    "SystemsMixin"
+    "SystemsMixin",
+    "TitleScreenMixin"
   ],
   "injectors": {
     "defaultRequire": 1