Adding client-side and server-side interactions. Also adds purpur/paper support

versions/1.21.1/build.gradle

@@ -0,0 +1,117 @@
+plugins {
+	id 'dev.architectury.loom'
+	id 'maven-publish'
+}
+
+version = rootProject.mod_version
+group = rootProject.maven_group
+
+base {
+	archivesName = "${rootProject.archives_base_name}-1.21.1"
+}
+
+repositories {
+	mavenCentral()
+	maven { url 'https://maven.shedaniel.me/' }
+	maven { url 'https://maven.terraformersmc.com/releases/' }
+	maven { url 'https://api.modrinth.com/maven/' }
+}
+
+loom {
+	splitEnvironmentSourceSets()
+
+	mods {
+		go_minecraft_bridge {
+			sourceSet sourceSets.main
+			sourceSet sourceSets.client
+		}
+	}
+
+	runs {
+		configureEach {
+			vmArg '--enable-native-access=ALL-UNNAMED'
+		}
+	}
+}
+
+def sharedRoot = file('../..')
+def prepareMainSources = tasks.register('prepareMainSources', Sync) {
+	from(sharedRoot.toPath().resolve('src/main/java')) {
+		exclude 'dev/yawaflua/gominecraftbridge/compat/MinecraftVersionAdapter.java'
+		exclude 'dev/yawaflua/gominecraftbridge/network/AdminRequestPayload.java'
+		exclude 'dev/yawaflua/gominecraftbridge/network/AdminResponsePayload.java'
+		exclude 'dev/yawaflua/gominecraftbridge/network/BridgeAdminNetworking.java'
+	}
+	from(sharedRoot.toPath().resolve('src/main/generated'))
+	from(file('src/main/java'))
+	into(layout.buildDirectory.dir('version-sources/main'))
+}
+
+sourceSets {
+	main {
+		java.setSrcDirs([layout.buildDirectory.dir('version-sources/main')])
+		resources.setSrcDirs([file('src/main/resources')])
+	}
+	client {
+		java.setSrcDirs([sharedRoot.toPath().resolve('src/client/java')])
+	}
+	test {
+		java.setSrcDirs([sharedRoot.toPath().resolve('src/test/java'), file('src/test/java')])
+	}
+}
+
+dependencies {
+	minecraft 'com.mojang:minecraft:1.21.1'
+	mappings loom.officialMojangMappings()
+	modImplementation 'net.fabricmc:fabric-loader:0.16.14'
+	modImplementation 'net.fabricmc.fabric-api:fabric-api:0.116.14+1.21.1'
+
+	implementation 'com.google.code.gson:gson:2.13.2'
+	implementation include('com.google.flatbuffers:flatbuffers-java:25.2.10')
+	implementation 'net.java.dev.jna:jna:5.18.1'
+
+	modClientImplementation 'me.shedaniel.cloth:cloth-config-fabric:15.0.140'
+	modClientImplementation 'maven.modrinth:modmenu:11.0.3'
+
+	testImplementation platform('org.junit:junit-bom:5.13.4')
+	testImplementation 'org.junit.jupiter:junit-jupiter'
+	testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
+}
+
+processResources {
+	inputs.property 'version', project.version
+	filesMatching('fabric.mod.json') {
+		expand 'version': project.version
+	}
+}
+
+tasks.withType(JavaCompile).configureEach {
+	options.release = 21
+}
+
+tasks.named('compileJava') {
+	dependsOn prepareMainSources
+}
+
+tasks.withType(Test).configureEach {
+	useJUnitPlatform()
+	jvmArgs '--enable-native-access=ALL-UNNAMED'
+}
+
+java {
+	withSourcesJar()
+	sourceCompatibility = JavaVersion.VERSION_21
+	targetCompatibility = JavaVersion.VERSION_21
+}
+
+tasks.named('sourcesJar') {
+	dependsOn prepareMainSources
+}
+
+publishing {
+	publications {
+		create('mavenJava', MavenPublication) {
+			from components.java
+		}
+	}
+}

versions/1.21.1/src/main/java/dev/yawaflua/gominecraftbridge/compat/MinecraftVersionAdapter.java

@@ -0,0 +1,29 @@
+package dev.yawaflua.gominecraftbridge.compat;
+
+import net.minecraft.SharedConstants;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.level.Level;
+
+/** Minecraft 1.21.1 implementation of the shared version adapter. */
+public final class MinecraftVersionAdapter {
+	private MinecraftVersionAdapter() {
+	}
+
+	public static String gameVersion() {
+		return SharedConstants.getCurrentVersion().getName();
+	}
+
+	public static String dimension(Level level) {
+		return level.dimension().location().toString();
+	}
+
+	public static long dayTime(ServerLevel level) {
+		return level.getDayTime();
+	}
+
+	public static boolean isOperator(MinecraftServer server, ServerPlayer player) {
+		return server.getPlayerList().isOp(player.getGameProfile());
+	}
+}

versions/1.21.1/src/main/java/dev/yawaflua/gominecraftbridge/network/AdminRequestPayload.java

@@ -0,0 +1,29 @@
+package dev.yawaflua.gominecraftbridge.network;
+
+import dev.yawaflua.gominecraftbridge.GoMinecraftBridgeMod;
+import net.minecraft.network.RegistryFriendlyByteBuf;
+import net.minecraft.network.codec.StreamCodec;
+import net.minecraft.network.protocol.common.custom.CustomPacketPayload;
+import net.minecraft.resources.ResourceLocation;
+
+public record AdminRequestPayload(String action, String pluginId) implements CustomPacketPayload {
+	public static final Type<AdminRequestPayload> TYPE = new Type<>(
+			ResourceLocation.fromNamespaceAndPath(GoMinecraftBridgeMod.MOD_ID, "admin_request")
+	);
+	public static final StreamCodec<RegistryFriendlyByteBuf, AdminRequestPayload> CODEC =
+			CustomPacketPayload.codec(AdminRequestPayload::write, AdminRequestPayload::new);
+
+	public AdminRequestPayload(RegistryFriendlyByteBuf buffer) {
+		this(buffer.readUtf(32), buffer.readUtf(64));
+	}
+
+	private void write(RegistryFriendlyByteBuf buffer) {
+		buffer.writeUtf(this.action, 32);
+		buffer.writeUtf(this.pluginId == null ? "" : this.pluginId, 64);
+	}
+
+	@Override
+	public Type<? extends CustomPacketPayload> type() {
+		return TYPE;
+	}
+}

versions/1.21.1/src/main/java/dev/yawaflua/gominecraftbridge/network/AdminResponsePayload.java

@@ -0,0 +1,31 @@
+package dev.yawaflua.gominecraftbridge.network;
+
+import dev.yawaflua.gominecraftbridge.GoMinecraftBridgeMod;
+import net.minecraft.network.RegistryFriendlyByteBuf;
+import net.minecraft.network.codec.StreamCodec;
+import net.minecraft.network.protocol.common.custom.CustomPacketPayload;
+import net.minecraft.resources.ResourceLocation;
+
+public record AdminResponsePayload(String json) implements CustomPacketPayload {
+	// 1.21.1 rejects a custom payload at 1 MiB. Leave room for the channel,
+	// packet framing, VarInts and UTF-8 expansion.
+	public static final int MAX_JSON_CHARS = 900 * 1024;
+	public static final Type<AdminResponsePayload> TYPE = new Type<>(
+			ResourceLocation.fromNamespaceAndPath(GoMinecraftBridgeMod.MOD_ID, "admin_response")
+	);
+	public static final StreamCodec<RegistryFriendlyByteBuf, AdminResponsePayload> CODEC =
+			CustomPacketPayload.codec(AdminResponsePayload::write, AdminResponsePayload::new);
+
+	public AdminResponsePayload(RegistryFriendlyByteBuf buffer) {
+		this(buffer.readUtf(MAX_JSON_CHARS));
+	}
+
+	private void write(RegistryFriendlyByteBuf buffer) {
+		buffer.writeUtf(this.json, MAX_JSON_CHARS);
+	}
+
+	@Override
+	public Type<? extends CustomPacketPayload> type() {
+		return TYPE;
+	}
+}

versions/1.21.1/src/main/java/dev/yawaflua/gominecraftbridge/network/BridgeAdminNetworking.java

@@ -0,0 +1,98 @@
+package dev.yawaflua.gominecraftbridge.network;
+
+import dev.yawaflua.gominecraftbridge.compat.MinecraftVersionAdapter;
+import dev.yawaflua.gominecraftbridge.host.GoPluginManager;
+import dev.yawaflua.gominecraftbridge.management.BridgeManagementSnapshot;
+import dev.yawaflua.gominecraftbridge.management.ManagedPluginSnapshot;
+import dev.yawaflua.gominecraftbridge.management.ReloadResult;
+import dev.yawaflua.gominecraftbridge.protocol.ProtocolJson;
+import net.fabricmc.fabric.api.networking.v1.PayloadTypeRegistry;
+import net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking;
+
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.List;
+
+/** Minecraft 1.21.1 networking registration overlay. */
+public final class BridgeAdminNetworking {
+	private BridgeAdminNetworking() {
+	}
+
+	public static void register(GoPluginManager plugins) {
+		PayloadTypeRegistry.playC2S().register(AdminRequestPayload.TYPE, AdminRequestPayload.CODEC);
+		PayloadTypeRegistry.playS2C().register(AdminResponsePayload.TYPE, AdminResponsePayload.CODEC);
+
+		ServerPlayNetworking.registerGlobalReceiver(AdminRequestPayload.TYPE, (payload, context) -> {
+			boolean allowed = MinecraftVersionAdapter.isOperator(context.server(), context.player());
+			if (!allowed) {
+				send(context, withoutDetails(plugins.managementSnapshot(
+						false, "Administrator permission is required"
+				)));
+				return;
+			}
+
+			String message = null;
+			if ("reload".equals(payload.action())) {
+				ReloadResult result = plugins.reload(payload.pluginId(), context.server());
+				message = result.message();
+			} else if ("rescan".equals(payload.action())) {
+				ReloadResult result = plugins.rescan(context.server());
+				message = result.message();
+			} else if (!"refresh".equals(payload.action())) {
+				message = "Unknown admin action: " + payload.action();
+			}
+
+			send(context, plugins.managementSnapshot(true, message));
+		});
+	}
+
+	static BridgeManagementSnapshot withoutDetails(BridgeManagementSnapshot snapshot) {
+		return new BridgeManagementSnapshot(
+				snapshot.generatedAtUnixMilli(), snapshot.serverRunning(), false,
+				snapshot.message(), List.of(), List.of()
+		);
+	}
+
+	private static void send(ServerPlayNetworking.Context context, BridgeManagementSnapshot snapshot) {
+		context.responseSender().sendPacket(new AdminResponsePayload(boundedJson(snapshot)));
+	}
+
+	/** Keeps the encoded 1.21.1 payload below its fixed 1 MiB protocol limit. */
+	static String boundedJson(BridgeManagementSnapshot snapshot) {
+		String json = ProtocolJson.GSON.toJson(snapshot);
+		if (fits(json)) {
+			return json;
+		}
+
+		for (int retainedLogs : new int[]{64, 16, 4, 0}) {
+			List<ManagedPluginSnapshot> plugins = new ArrayList<>(snapshot.plugins().size());
+			for (ManagedPluginSnapshot plugin : snapshot.plugins()) {
+				int from = Math.max(0, plugin.logs().size() - retainedLogs);
+				plugins.add(new ManagedPluginSnapshot(
+						plugin.metadata(), plugin.state(), plugin.backend(), plugin.origin(),
+						plugin.logs().subList(from, plugin.logs().size())
+				));
+			}
+			BridgeManagementSnapshot trimmed = new BridgeManagementSnapshot(
+					snapshot.generatedAtUnixMilli(), snapshot.serverRunning(), snapshot.canReload(),
+					"Response was shortened to fit the Minecraft 1.21.1 payload limit",
+					snapshot.packages(), plugins
+			);
+			json = ProtocolJson.GSON.toJson(trimmed);
+			if (fits(json)) {
+				return json;
+			}
+		}
+
+		return ProtocolJson.GSON.toJson(new BridgeManagementSnapshot(
+				snapshot.generatedAtUnixMilli(), snapshot.serverRunning(), snapshot.canReload(),
+				"Management data exceeded the Minecraft 1.21.1 payload limit; reload or inspect fewer packages",
+				List.of(), List.of()
+		));
+	}
+
+	private static boolean fits(String json) {
+		return json.length() <= AdminResponsePayload.MAX_JSON_CHARS
+				&& json.getBytes(StandardCharsets.UTF_8).length <= AdminResponsePayload.MAX_JSON_CHARS;
+	}
+}

versions/1.21.1/src/main/resources/fabric.mod.json

@@ -0,0 +1,25 @@
+{
+  "schemaVersion": 1,
+  "id": "go_minecraft_bridge",
+  "version": "${version}",
+  "name": "Go Minecraft Bridge",
+  "description": "A native Go plugin host with server and client runtimes.",
+  "authors": ["yawaflua"],
+  "license": "All-Rights-Reserved",
+  "environment": "*",
+  "entrypoints": {
+    "main": ["dev.yawaflua.gominecraftbridge.GoMinecraftBridgeMod"],
+    "client": ["dev.yawaflua.gominecraftbridge.client.GoMinecraftBridgeClient"],
+    "modmenu": ["dev.yawaflua.gominecraftbridge.client.GoBridgeModMenuIntegration"]
+  },
+  "depends": {
+    "fabricloader": ">=0.16.14",
+    "minecraft": "~1.21.1",
+    "java": ">=21",
+    "fabric-api": "*"
+  },
+  "suggests": {
+    "cloth-config": ">=15.0.140",
+    "modmenu": ">=11.0.3"
+  }
+}

versions/1.21.1/src/test/java/dev/yawaflua/gominecraftbridge/network/BridgeAdminNetworking1211Test.java

@@ -0,0 +1,35 @@
+package dev.yawaflua.gominecraftbridge.network;
+
+import dev.yawaflua.gominecraftbridge.management.BridgeManagementSnapshot;
+import dev.yawaflua.gominecraftbridge.management.ManagedPluginSnapshot;
+import dev.yawaflua.gominecraftbridge.protocol.PluginEnvironment;
+import dev.yawaflua.gominecraftbridge.protocol.PluginLog;
+import dev.yawaflua.gominecraftbridge.protocol.PluginMetadata;
+import org.junit.jupiter.api.Test;
+
+import java.nio.charset.StandardCharsets;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+class BridgeAdminNetworking1211Test {
+	@Test
+	void managementJsonIsTrimmedBelowTheLegacyPayloadLimit() {
+		String hugeMessage = "Ж".repeat(8192);
+		List<PluginLog> logs = java.util.stream.IntStream.range(0, 500)
+				.mapToObj(index -> new PluginLog("sdk", "info", hugeMessage, index))
+				.toList();
+		PluginMetadata metadata = new PluginMetadata(
+				"large", "Large", "1", "", List.of(), null, 2, null, PluginEnvironment.BOTH
+		);
+		BridgeManagementSnapshot snapshot = new BridgeManagementSnapshot(
+				1, true, true, null, List.of(),
+				List.of(new ManagedPluginSnapshot(metadata, "running", "native", "/plugin.so", logs))
+		);
+
+		String json = BridgeAdminNetworking.boundedJson(snapshot);
+
+		assertTrue(json.length() <= AdminResponsePayload.MAX_JSON_CHARS);
+		assertTrue(json.getBytes(StandardCharsets.UTF_8).length <= AdminResponsePayload.MAX_JSON_CHARS);
+	}
+}

versions/26.1.2/build.gradle

@@ -0,0 +1,95 @@
+plugins {
+	id 'net.fabricmc.fabric-loom'
+	id 'maven-publish'
+}
+
+version = rootProject.mod_version
+group = rootProject.maven_group
+
+base {
+	archivesName = "${rootProject.archives_base_name}-26.1.2"
+}
+
+repositories {
+	mavenCentral()
+	maven { url 'https://maven.shedaniel.me/' }
+	maven { url 'https://maven.terraformersmc.com/releases/' }
+	maven { url 'https://api.modrinth.com/maven/' }
+}
+
+loom {
+	splitEnvironmentSourceSets()
+
+	mods {
+		go_minecraft_bridge {
+			sourceSet sourceSets.main
+			sourceSet sourceSets.client
+		}
+	}
+
+	runs {
+		configureEach {
+			vmArg '--enable-native-access=ALL-UNNAMED'
+		}
+	}
+}
+
+sourceSets {
+	main {
+		java.srcDirs rootProject.file('src/main/java'), rootProject.file('src/main/generated')
+		resources.srcDirs rootProject.file('src/main/resources')
+	}
+	client {
+		java.srcDirs rootProject.file('src/client/java')
+	}
+	test {
+		java.srcDirs rootProject.file('src/test/java')
+	}
+}
+
+dependencies {
+	minecraft 'com.mojang:minecraft:26.1.2'
+	implementation 'net.fabricmc:fabric-loader:0.19.3'
+	implementation 'net.fabricmc.fabric-api:fabric-api:0.149.1+26.1.2'
+
+	implementation 'com.google.code.gson:gson:2.13.2'
+	implementation include('com.google.flatbuffers:flatbuffers-java:25.2.10')
+	implementation 'net.java.dev.jna:jna:5.18.1'
+
+	clientImplementation 'me.shedaniel.cloth:cloth-config-fabric:26.1.154'
+	clientImplementation 'maven.modrinth:modmenu:18.0.0'
+
+	testImplementation platform('org.junit:junit-bom:5.13.4')
+	testImplementation 'org.junit.jupiter:junit-jupiter'
+	testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
+}
+
+processResources {
+	inputs.property 'version', project.version
+	filesMatching('fabric.mod.json') {
+		expand 'version': project.version
+	}
+}
+
+tasks.withType(JavaCompile).configureEach {
+	options.release = 25
+}
+
+tasks.withType(Test).configureEach {
+	useJUnitPlatform()
+	jvmArgs '--enable-native-access=ALL-UNNAMED'
+}
+
+java {
+	withSourcesJar()
+	sourceCompatibility = JavaVersion.VERSION_25
+	targetCompatibility = JavaVersion.VERSION_25
+}
+
+publishing {
+	publications {
+		create('mavenJava', MavenPublication) {
+			from components.java
+		}
+	}
+}

versions/26.1.2/src/main/java/dev/yawaflua/gominecraftbridge/compat/MinecraftVersionAdapter.java

@@ -0,0 +1,29 @@
+package dev.yawaflua.gominecraftbridge.compat;
+
+import net.minecraft.SharedConstants;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.world.level.Level;
+
+/** Minecraft-version-specific names kept behind one small source overlay. */
+public final class MinecraftVersionAdapter {
+	private MinecraftVersionAdapter() {
+	}
+
+	public static String gameVersion() {
+		return SharedConstants.getCurrentVersion().name();
+	}
+
+	public static String dimension(Level level) {
+		return level.dimension().identifier().toString();
+	}
+
+	public static long dayTime(ServerLevel level) {
+		return level.getDefaultClockTime();
+	}
+
+	public static boolean isOperator(MinecraftServer server, ServerPlayer player) {
+		return server.getPlayerList().isOp(player.nameAndId());
+	}
+}

versions/26.1.2/src/main/java/dev/yawaflua/gominecraftbridge/network/AdminRequestPayload.java

@@ -0,0 +1,29 @@
+package dev.yawaflua.gominecraftbridge.network;
+
+import dev.yawaflua.gominecraftbridge.GoMinecraftBridgeMod;
+import net.minecraft.network.RegistryFriendlyByteBuf;
+import net.minecraft.network.codec.StreamCodec;
+import net.minecraft.network.protocol.common.custom.CustomPacketPayload;
+import net.minecraft.resources.Identifier;
+
+public record AdminRequestPayload(String action, String pluginId) implements CustomPacketPayload {
+	public static final Type<AdminRequestPayload> TYPE = new Type<>(
+			Identifier.fromNamespaceAndPath(GoMinecraftBridgeMod.MOD_ID, "admin_request")
+	);
+	public static final StreamCodec<RegistryFriendlyByteBuf, AdminRequestPayload> CODEC =
+			CustomPacketPayload.codec(AdminRequestPayload::write, AdminRequestPayload::new);
+
+	public AdminRequestPayload(RegistryFriendlyByteBuf buffer) {
+		this(buffer.readUtf(32), buffer.readUtf(64));
+	}
+
+	private void write(RegistryFriendlyByteBuf buffer) {
+		buffer.writeUtf(this.action, 32);
+		buffer.writeUtf(this.pluginId == null ? "" : this.pluginId, 64);
+	}
+
+	@Override
+	public Type<? extends CustomPacketPayload> type() {
+		return TYPE;
+	}
+}

versions/26.1.2/src/main/java/dev/yawaflua/gominecraftbridge/network/AdminResponsePayload.java

@@ -0,0 +1,29 @@
+package dev.yawaflua.gominecraftbridge.network;
+
+import dev.yawaflua.gominecraftbridge.GoMinecraftBridgeMod;
+import net.minecraft.network.RegistryFriendlyByteBuf;
+import net.minecraft.network.codec.StreamCodec;
+import net.minecraft.network.protocol.common.custom.CustomPacketPayload;
+import net.minecraft.resources.Identifier;
+
+public record AdminResponsePayload(String json) implements CustomPacketPayload {
+	public static final int MAX_JSON_CHARS = 2 * 1024 * 1024;
+	public static final Type<AdminResponsePayload> TYPE = new Type<>(
+			Identifier.fromNamespaceAndPath(GoMinecraftBridgeMod.MOD_ID, "admin_response")
+	);
+	public static final StreamCodec<RegistryFriendlyByteBuf, AdminResponsePayload> CODEC =
+			CustomPacketPayload.codec(AdminResponsePayload::write, AdminResponsePayload::new);
+
+	public AdminResponsePayload(RegistryFriendlyByteBuf buffer) {
+		this(buffer.readUtf(MAX_JSON_CHARS));
+	}
+
+	private void write(RegistryFriendlyByteBuf buffer) {
+		buffer.writeUtf(this.json, MAX_JSON_CHARS);
+	}
+
+	@Override
+	public Type<? extends CustomPacketPayload> type() {
+		return TYPE;
+	}
+}

versions/26.1.2/src/main/java/dev/yawaflua/gominecraftbridge/network/BridgeAdminNetworking.java

@@ -0,0 +1,68 @@
+package dev.yawaflua.gominecraftbridge.network;
+
+import dev.yawaflua.gominecraftbridge.compat.MinecraftVersionAdapter;
+import dev.yawaflua.gominecraftbridge.host.GoPluginManager;
+import dev.yawaflua.gominecraftbridge.management.BridgeManagementSnapshot;
+import dev.yawaflua.gominecraftbridge.management.ReloadResult;
+import dev.yawaflua.gominecraftbridge.protocol.ProtocolJson;
+import net.fabricmc.fabric.api.networking.v1.PayloadTypeRegistry;
+import net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking;
+
+import java.util.List;
+
+public final class BridgeAdminNetworking {
+	private BridgeAdminNetworking() {
+	}
+
+	public static void register(GoPluginManager plugins) {
+		PayloadTypeRegistry.serverboundPlay().register(AdminRequestPayload.TYPE, AdminRequestPayload.CODEC);
+		PayloadTypeRegistry.clientboundPlay().registerLarge(
+				AdminResponsePayload.TYPE,
+				AdminResponsePayload.CODEC,
+				AdminResponsePayload.MAX_JSON_CHARS * 4 + 256
+		);
+
+		ServerPlayNetworking.registerGlobalReceiver(AdminRequestPayload.TYPE, (payload, context) -> {
+			boolean allowed = MinecraftVersionAdapter.isOperator(context.server(), context.player());
+			if (!allowed) {
+				send(context, withoutDetails(plugins.managementSnapshot(
+						false,
+						"Administrator permission is required"
+				)));
+				return;
+			}
+
+			String message = null;
+			if ("reload".equals(payload.action())) {
+				ReloadResult result = plugins.reload(payload.pluginId(), context.server());
+				message = result.message();
+			} else if ("rescan".equals(payload.action())) {
+				ReloadResult result = plugins.rescan(context.server());
+				message = result.message();
+			} else if (!"refresh".equals(payload.action())) {
+				message = "Unknown admin action: " + payload.action();
+			}
+
+			send(context, plugins.managementSnapshot(true, message));
+		});
+	}
+
+	static BridgeManagementSnapshot withoutDetails(BridgeManagementSnapshot snapshot) {
+		return new BridgeManagementSnapshot(
+				snapshot.generatedAtUnixMilli(),
+				snapshot.serverRunning(),
+				false,
+				snapshot.message(),
+				List.of(),
+				List.of()
+		);
+	}
+
+	private static void send(
+			ServerPlayNetworking.Context context,
+			BridgeManagementSnapshot snapshot
+	) {
+		String json = ProtocolJson.GSON.toJson(snapshot);
+		context.responseSender().sendPacket(new AdminResponsePayload(json));
+	}
+}