From 07cf50f5706cb2ef58bd98fc981fb8fd710808cf Mon Sep 17 00:00:00 2001
From: Danhoby <37343749+Dan4oby@users.noreply.github.com>
Date: Thu, 15 Oct 2026 15:43:55 +0300
Subject: [PATCH] feat(mmc): add compatibleJavaName hint for PrismLauncher

---
 .../gradle/api/task/dist/PublishMmcPackZip.java    |  8 ++++++++
 .../gradle/api/util/lazy/Providers.java            | 14 ++++++++++++++
 .../cleanroommc/gradle/env/DistributionTasks.java  |  2 ++
 3 files changed, 24 insertions(+)

diff --git a/src/main/java/com/cleanroommc/gradle/api/task/dist/PublishMmcPackZip.java b/src/main/java/com/cleanroommc/gradle/api/task/dist/PublishMmcPackZip.java
index ae4555d..72de546 100644
--- a/src/main/java/com/cleanroommc/gradle/api/task/dist/PublishMmcPackZip.java
+++ b/src/main/java/com/cleanroommc/gradle/api/task/dist/PublishMmcPackZip.java
@@ -190,6 +190,9 @@ private static void writeZip(File output, Map<String, byte[]> files) {
     @Input
     public abstract ListProperty<Integer> getCompatibleJavaMajors();
 
+    @Input
+    public abstract Property<String> getCompatibleJavaName();
+
     @Input
     public abstract Property<String> getUniversalCoordinate();
 
@@ -298,6 +301,11 @@ private JsonObject forgePatchJson(JsonArray libraries, String lwjglVersion) {
             getCompatibleJavaMajors().get().forEach(javaMajors::add);
             patch.add("compatibleJavaMajors", javaMajors);
         }
+        
+        if (!getCompatibleJavaName().get().isEmpty()) {
+            patch.addProperty("compatibleJavaName", getCompatibleJavaName().get();
+        }
+        
         if (!tweakers.isEmpty()) {
             patch.add("+tweakers", tweakers);
         }
diff --git a/src/main/java/com/cleanroommc/gradle/api/util/lazy/Providers.java b/src/main/java/com/cleanroommc/gradle/api/util/lazy/Providers.java
index 84df95f..3d07fb1 100644
--- a/src/main/java/com/cleanroommc/gradle/api/util/lazy/Providers.java
+++ b/src/main/java/com/cleanroommc/gradle/api/util/lazy/Providers.java
@@ -29,6 +29,20 @@ public static Provider<Integer> targetJavaMajor(Project project) {
         return targetJavaVersion(project).map(JavaLanguageVersion::asInt);
     }
 
+    public static Provider<String> targetJavaName(Project project) {
+        return targetJavaMajor(project).map(Providers::javaRuntimeName);
+    }
+
+    // mojang jre names
+    public static String javaRuntimeName(int major) {
+        if (major >= 29) return ""; 
+        if (major >= 25) return "java-runtime-epsilon";
+        if (major >= 21) return "java-runtime-delta";
+        if (major >= 17) return "java-runtime-beta";
+        if (major >= 16) return "java-runtime-alpha";
+        return "jre-legacy";
+    }
+
     public static Provider<JavaLauncher> javaLauncher(Project project) {
         return javaLauncher(project.getExtensions().getByType(JavaToolchainService.class), targetJavaVersion(project));
     }
diff --git a/src/main/java/com/cleanroommc/gradle/env/DistributionTasks.java b/src/main/java/com/cleanroommc/gradle/env/DistributionTasks.java
index f663c3b..e72db76 100644
--- a/src/main/java/com/cleanroommc/gradle/env/DistributionTasks.java
+++ b/src/main/java/com/cleanroommc/gradle/env/DistributionTasks.java
@@ -136,6 +136,7 @@ public DistributionTasks(Project project, ProjectCoordinates coordinates, Caches
 
         var javaExtension = project.getExtensions().getByType(JavaPluginExtension.class);
         var targetJavaMajor = Providers.targetJavaMajor(project);
+        var targetJavaName = Providers.targetJavaName(project);
         var mainSourceSet = javaExtension.getSourceSets().named(SourceSet.MAIN_SOURCE_SET_NAME);
         var jarTask = project.getTasks().named("jar", Jar.class);
 
@@ -474,6 +475,7 @@ public DistributionTasks(Project project, ProjectCoordinates coordinates, Caches
             task.getMainClass().set(clientLaunchClass);
             task.getTweakers().set(clientTweakClass.map(List::of));
             task.getCompatibleJavaMajors().set(targetJavaMajor.map(List::of));
+            task.getCompatibleJavaName().set(targetJavaName);
             task.getUniversalCoordinate().set(universal.map(Coordinate::serialized));
             task.getUniversalUrl().set(universalUrl);
             task.getUniversalJar().set(this.universalJar.flatMap(Jar::getArchiveFile));