Merge remote-tracking branch 'lucko/master' into forge-1.7.10

12 files changed, 190 insertions, 200 deletions

diff --git a/spark-fabric/src/main/java/me/lucko/spark/fabric/FabricClassSourceLookup.java b/spark-fabric/src/main/java/me/lucko/spark/fabric/FabricClassSourceLookup.java
index fa59079..7030680 100644
--- a/spark-fabric/src/main/java/me/lucko/spark/fabric/FabricClassSourceLookup.java
+++ b/spark-fabric/src/main/java/me/lucko/spark/fabric/FabricClassSourceLookup.java
@@ -20,25 +20,47 @@
 
 package me.lucko.spark.fabric;
 
+import com.google.common.collect.ImmutableMap;
+
 import me.lucko.spark.common.util.ClassSourceLookup;
 
 import net.fabricmc.loader.api.FabricLoader;
+import net.fabricmc.loader.api.ModContainer;
 
 import java.nio.file.Path;
+import java.util.Collection;
+import java.util.Map;
 
 public class FabricClassSourceLookup extends ClassSourceLookup.ByCodeSource {
     private final Path modsDirectory;
+    private final Map<Path, String> pathToModMap;
 
     public FabricClassSourceLookup() {
-        this.modsDirectory = FabricLoader.getInstance().getGameDir().resolve("mods").toAbsolutePath().normalize();
+        FabricLoader loader = FabricLoader.getInstance();
+        this.modsDirectory = loader.getGameDir().resolve("mods").toAbsolutePath().normalize();
+        this.pathToModMap = constructPathToModIdMap(loader.getAllMods());
     }
 
     @Override
     public String identifyFile(Path path) {
+        String id = this.pathToModMap.get(path);
+        if (id != null) {
+            return id;
+        }
+
         if (!path.startsWith(this.modsDirectory)) {
             return null;
         }
 
         return super.identifyFileName(this.modsDirectory.relativize(path).toString());
     }
+
+    private static Map<Path, String> constructPathToModIdMap(Collection<ModContainer> mods) {
+        ImmutableMap.Builder<Path, String> builder = ImmutableMap.builder();
+        for (ModContainer mod : mods) {
+            Path path = mod.getRootPath().toAbsolutePath().normalize();
+            builder.put(path, mod.getMetadata().getId());
+        }
+        return builder.build();
+    }
 }
diff --git a/spark-fabric/src/main/java/me/lucko/spark/fabric/FabricCommandSender.java b/spark-fabric/src/main/java/me/lucko/spark/fabric/FabricCommandSender.java
index 14b3442..2138dbe 100644
--- a/spark-fabric/src/main/java/me/lucko/spark/fabric/FabricCommandSender.java
+++ b/spark-fabric/src/main/java/me/lucko/spark/fabric/FabricCommandSender.java
@@ -34,8 +34,6 @@ import net.minecraft.text.Text;
 import java.util.UUID;
 
 public class FabricCommandSender extends AbstractCommandSender<CommandOutput> {
-    private static final UUID NIL_UUID = new UUID(0, 0);
-
     private final FabricSparkPlugin plugin;
 
     public FabricCommandSender(CommandOutput commandOutput, FabricSparkPlugin plugin) {
@@ -67,7 +65,7 @@ public class FabricCommandSender extends AbstractCommandSender<CommandOutput> {
     @Override
     public void sendMessage(Component message) {
         Text component = Text.Serializer.fromJson(GsonComponentSerializer.gson().serialize(message));
-        super.delegate.sendSystemMessage(component, NIL_UUID);
+        super.delegate.sendMessage(component);
     }
 
     @Override
diff --git a/spark-fabric/src/main/java/me/lucko/spark/fabric/FabricPlatformInfo.java b/spark-fabric/src/main/java/me/lucko/spark/fabric/FabricPlatformInfo.java
index 93ccda4..e298121 100644
--- a/spark-fabric/src/main/java/me/lucko/spark/fabric/FabricPlatformInfo.java
+++ b/spark-fabric/src/main/java/me/lucko/spark/fabric/FabricPlatformInfo.java
@@ -20,13 +20,13 @@
 
 package me.lucko.spark.fabric;
 
-import me.lucko.spark.common.platform.AbstractPlatformInfo;
+import me.lucko.spark.common.platform.PlatformInfo;
 
 import net.fabricmc.loader.api.FabricLoader;
 
 import java.util.Optional;
 
-public class FabricPlatformInfo extends AbstractPlatformInfo {
+public class FabricPlatformInfo implements PlatformInfo {
     private final Type type;
 
     public FabricPlatformInfo(Type type) {
@@ -35,7 +35,7 @@ public class FabricPlatformInfo extends AbstractPlatformInfo {
 
     @Override
     public Type getType() {
-        return type;
+        return this.type;
     }
 
     @Override
diff --git a/spark-fabric/src/main/java/me/lucko/spark/fabric/FabricSparkGameHooks.java b/spark-fabric/src/main/java/me/lucko/spark/fabric/FabricPlayerPingProvider.java
index 5eec53d..bae6c41 100644
--- a/spark-fabric/src/main/java/me/lucko/spark/fabric/FabricSparkGameHooks.java
+++ b/spark-fabric/src/main/java/me/lucko/spark/fabric/FabricPlayerPingProvider.java
@@ -20,21 +20,28 @@
 
 package me.lucko.spark.fabric;
 
-import java.util.function.Predicate;
+import com.google.common.collect.ImmutableMap;
 
-public enum FabricSparkGameHooks {
-    INSTANCE;
+import me.lucko.spark.common.monitor.ping.PlayerPingProvider;
 
-    // Use events from Fabric API later
-    // Return true to abort sending to server
-    private Predicate<String> chatSendCallback = s -> false;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.network.ServerPlayerEntity;
 
-    public void setChatSendCallback(Predicate<String> callback) {
-        this.chatSendCallback = callback;
-    }
+import java.util.Map;
+
+public class FabricPlayerPingProvider implements PlayerPingProvider {
+    private final MinecraftServer server;
 
-    public boolean tryProcessChat(String message) {
-        return this.chatSendCallback.test(message);
+    public FabricPlayerPingProvider(MinecraftServer server) {
+        this.server = server;
     }
 
+    @Override
+    public Map<String, Integer> poll() {
+        ImmutableMap.Builder<String, Integer> builder = ImmutableMap.builder();
+        for (ServerPlayerEntity player : this.server.getPlayerManager().getPlayerList()) {
+            builder.put(player.getGameProfile().getName(), player.pingMilliseconds);
+        }
+        return builder.build();
+    }
 }
diff --git a/spark-fabric/src/main/java/me/lucko/spark/fabric/FabricSparkMod.java b/spark-fabric/src/main/java/me/lucko/spark/fabric/FabricSparkMod.java
index 1dd4fd8..ad419f7 100644
--- a/spark-fabric/src/main/java/me/lucko/spark/fabric/FabricSparkMod.java
+++ b/spark-fabric/src/main/java/me/lucko/spark/fabric/FabricSparkMod.java
@@ -20,14 +20,21 @@
 
 package me.lucko.spark.fabric;
 
+import com.mojang.brigadier.CommandDispatcher;
+
 import me.lucko.spark.fabric.plugin.FabricClientSparkPlugin;
 import me.lucko.spark.fabric.plugin.FabricServerSparkPlugin;
 
 import net.fabricmc.api.ModInitializer;
+import net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback;
 import net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents;
 import net.fabricmc.loader.api.FabricLoader;
 import net.fabricmc.loader.api.ModContainer;
 import net.minecraft.client.MinecraftClient;
+import net.minecraft.command.CommandRegistryAccess;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.command.CommandManager.RegistrationEnvironment;
+import net.minecraft.server.command.ServerCommandSource;
 
 import java.nio.file.Path;
 import java.util.Objects;
@@ -38,6 +45,8 @@ public class FabricSparkMod implements ModInitializer {
     private ModContainer container;
     private Path configDirectory;
 
+    private FabricServerSparkPlugin activeServerPlugin = null;
+
     @Override
     public void onInitialize() {
         FabricSparkMod.mod = this;
@@ -47,16 +56,36 @@ public class FabricSparkMod implements ModInitializer {
                 .orElseThrow(() -> new IllegalStateException("Unable to get container for spark"));
         this.configDirectory = loader.getConfigDir().resolve("spark");
 
-        // load hooks
-        ServerLifecycleEvents.SERVER_STARTING.register(server -> FabricServerSparkPlugin.register(this, server));
+        // server event hooks
+        ServerLifecycleEvents.SERVER_STARTING.register(this::initializeServer);
+        ServerLifecycleEvents.SERVER_STOPPING.register(this::onServerStopping);
+        CommandRegistrationCallback.EVENT.register(this::onServerCommandRegister);
     }
 
-    // called be entrypoint defined in fabric.mod.json
+    // client (called be entrypoint defined in fabric.mod.json)
     public static void initializeClient() {
         Objects.requireNonNull(FabricSparkMod.mod, "mod");
         FabricClientSparkPlugin.register(FabricSparkMod.mod, MinecraftClient.getInstance());
     }
 
+    // server
+    public void initializeServer(MinecraftServer server) {
+        this.activeServerPlugin = FabricServerSparkPlugin.register(this, server);
+    }
+
+    public void onServerStopping(MinecraftServer stoppingServer) {
+        if (this.activeServerPlugin != null) {
+            this.activeServerPlugin.disable();
+            this.activeServerPlugin = null;
+        }
+    }
+
+    public void onServerCommandRegister(CommandDispatcher<ServerCommandSource> dispatcher, CommandRegistryAccess access, RegistrationEnvironment env) {
+        if (this.activeServerPlugin != null) {
+            this.activeServerPlugin.registerCommands(dispatcher);
+        }
+    }
+
     public String getVersion() {
         return this.container.getMetadata().getVersion().getFriendlyString();
     }
diff --git a/spark-fabric/src/main/java/me/lucko/spark/fabric/mixin/ClientPlayerEntityMixin.java b/spark-fabric/src/main/java/me/lucko/spark/fabric/mixin/ClientPlayerEntityMixin.java
deleted file mode 100644
index 495b213..0000000
--- a/spark-fabric/src/main/java/me/lucko/spark/fabric/mixin/ClientPlayerEntityMixin.java
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * This file is part of spark.
- *
- *  Copyright (c) lucko (Luck) <luck@lucko.me>
- *  Copyright (c) contributors
- *
- *  This program is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 3 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package me.lucko.spark.fabric.mixin;
-
-import com.mojang.authlib.GameProfile;
-
-import me.lucko.spark.fabric.FabricSparkGameHooks;
-
-import net.minecraft.client.network.AbstractClientPlayerEntity;
-import net.minecraft.client.network.ClientPlayerEntity;
-import net.minecraft.client.world.ClientWorld;
-
-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;
-import org.spongepowered.asm.mixin.injection.callback.LocalCapture;
-
-@Mixin(ClientPlayerEntity.class)
-public abstract class ClientPlayerEntityMixin extends AbstractClientPlayerEntity {
-
-    public ClientPlayerEntityMixin(ClientWorld clientWorld_1, GameProfile gameProfile_1) {
-        super(clientWorld_1, gameProfile_1);
-    }
-
-    @Inject(method = "sendChatMessage(Ljava/lang/String;)V", at = @At("HEAD"),
-            locals = LocalCapture.CAPTURE_FAILHARD,
-            cancellable = true)
-    public void onSendChatMessage(String message, CallbackInfo ci) {
-        if (FabricSparkGameHooks.INSTANCE.tryProcessChat(message)) {
-            ci.cancel();
-        }
-    }
-}
diff --git a/spark-fabric/src/main/java/me/lucko/spark/fabric/placeholder/SparkFabricPlaceholderApi.java b/spark-fabric/src/main/java/me/lucko/spark/fabric/placeholder/SparkFabricPlaceholderApi.java
index 359630d..dc2e7d9 100644
--- a/spark-fabric/src/main/java/me/lucko/spark/fabric/placeholder/SparkFabricPlaceholderApi.java
+++ b/spark-fabric/src/main/java/me/lucko/spark/fabric/placeholder/SparkFabricPlaceholderApi.java
@@ -1,12 +1,34 @@
+/*
+ * This file is part of spark.
+ *
+ *  Copyright (c) lucko (Luck) <luck@lucko.me>
+ *  Copyright (c) contributors
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 package me.lucko.spark.fabric.placeholder;
 
 import eu.pb4.placeholders.PlaceholderAPI;
 import eu.pb4.placeholders.PlaceholderResult;
+
 import me.lucko.spark.common.SparkPlatform;
-import me.lucko.spark.common.command.modules.HealthModule;
 import me.lucko.spark.common.monitor.cpu.CpuMonitor;
 import me.lucko.spark.common.monitor.tick.TickStatistics;
 import me.lucko.spark.common.util.RollingAverage;
+import me.lucko.spark.common.util.StatisticFormatter;
+
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.serializer.gson.GsonComponentSerializer;
 import net.minecraft.text.Text;
@@ -45,16 +67,16 @@ public class SparkFabricPlaceholderApi {
                         if (tps == null) {
                             return PlaceholderResult.invalid("Invalid argument");
                         } else {
-                            return PlaceholderResult.value(toText(HealthModule.formatTps(tps)));
+                            return PlaceholderResult.value(toText(StatisticFormatter.formatTps(tps)));
                         }
                     } else {
                         return PlaceholderResult.value(toText(
                                 Component.text()
-                                        .append(HealthModule.formatTps(tickStatistics.tps5Sec())).append(Component.text(", "))
-                                        .append(HealthModule.formatTps(tickStatistics.tps10Sec())).append(Component.text(", "))
-                                        .append(HealthModule.formatTps(tickStatistics.tps1Min())).append(Component.text(", "))
-                                        .append(HealthModule.formatTps(tickStatistics.tps5Min())).append(Component.text(", "))
-                                        .append(HealthModule.formatTps(tickStatistics.tps15Min()))
+                                        .append(StatisticFormatter.formatTps(tickStatistics.tps5Sec())).append(Component.text(", "))
+                                        .append(StatisticFormatter.formatTps(tickStatistics.tps10Sec())).append(Component.text(", "))
+                                        .append(StatisticFormatter.formatTps(tickStatistics.tps1Min())).append(Component.text(", "))
+                                        .append(StatisticFormatter.formatTps(tickStatistics.tps5Min())).append(Component.text(", "))
+                                        .append(StatisticFormatter.formatTps(tickStatistics.tps15Min()))
                                         .build()
                         ));
                     }
@@ -82,13 +104,13 @@ public class SparkFabricPlaceholderApi {
                         if (duration == null) {
                             return PlaceholderResult.invalid("Invalid argument");
                         } else {
-                            return PlaceholderResult.value(toText(HealthModule.formatTickDurations(duration)));
+                            return PlaceholderResult.value(toText(StatisticFormatter.formatTickDurations(duration)));
                         }
                     } else {
                         return PlaceholderResult.value(toText(
                                 Component.text()
-                                        .append(HealthModule.formatTickDurations(tickStatistics.duration10Sec())).append(Component.text(";  "))
-                                        .append(HealthModule.formatTickDurations(tickStatistics.duration1Min()))
+                                        .append(StatisticFormatter.formatTickDurations(tickStatistics.duration10Sec())).append(Component.text(";  "))
+                                        .append(StatisticFormatter.formatTickDurations(tickStatistics.duration1Min()))
                                         .build()
                         ));
                     }
@@ -113,14 +135,14 @@ public class SparkFabricPlaceholderApi {
                         if (usage == null) {
                             return PlaceholderResult.invalid("Invalid argument");
                         } else {
-                            return PlaceholderResult.value(toText(HealthModule.formatCpuUsage(usage)));
+                            return PlaceholderResult.value(toText(StatisticFormatter.formatCpuUsage(usage)));
                         }
                     } else {
                         return PlaceholderResult.value(toText(
                                 Component.text()
-                                        .append(HealthModule.formatCpuUsage(CpuMonitor.systemLoad10SecAvg())).append(Component.text(", "))
-                                        .append(HealthModule.formatCpuUsage(CpuMonitor.systemLoad1MinAvg())).append(Component.text(", "))
-                                        .append(HealthModule.formatCpuUsage(CpuMonitor.systemLoad15MinAvg()))
+                                        .append(StatisticFormatter.formatCpuUsage(CpuMonitor.systemLoad10SecAvg())).append(Component.text(", "))
+                                        .append(StatisticFormatter.formatCpuUsage(CpuMonitor.systemLoad1MinAvg())).append(Component.text(", "))
+                                        .append(StatisticFormatter.formatCpuUsage(CpuMonitor.systemLoad15MinAvg()))
                                         .build()
                         ));
                     }
@@ -145,14 +167,14 @@ public class SparkFabricPlaceholderApi {
                         if (usage == null) {
                             return PlaceholderResult.invalid("Invalid argument");
                         } else {
-                            return PlaceholderResult.value(toText(HealthModule.formatCpuUsage(usage)));
+                            return PlaceholderResult.value(toText(StatisticFormatter.formatCpuUsage(usage)));
                         }
                     } else {
                         return PlaceholderResult.value(toText(
                                 Component.text()
-                                        .append(HealthModule.formatCpuUsage(CpuMonitor.processLoad10SecAvg())).append(Component.text(", "))
-                                        .append(HealthModule.formatCpuUsage(CpuMonitor.processLoad1MinAvg())).append(Component.text(", "))
-                                        .append(HealthModule.formatCpuUsage(CpuMonitor.processLoad15MinAvg()))
+                                        .append(StatisticFormatter.formatCpuUsage(CpuMonitor.processLoad10SecAvg())).append(Component.text(", "))
+                                        .append(StatisticFormatter.formatCpuUsage(CpuMonitor.processLoad1MinAvg())).append(Component.text(", "))
+                                        .append(StatisticFormatter.formatCpuUsage(CpuMonitor.processLoad15MinAvg()))
                                         .build()
                         ));
                     }
diff --git a/spark-fabric/src/main/java/me/lucko/spark/fabric/plugin/FabricClientSparkPlugin.java b/spark-fabric/src/main/java/me/lucko/spark/fabric/plugin/FabricClientSparkPlugin.java
index 0948225..e94d697 100644
--- a/spark-fabric/src/main/java/me/lucko/spark/fabric/plugin/FabricClientSparkPlugin.java
+++ b/spark-fabric/src/main/java/me/lucko/spark/fabric/plugin/FabricClientSparkPlugin.java
@@ -33,101 +33,73 @@ import me.lucko.spark.common.tick.TickHook;
 import me.lucko.spark.common.tick.TickReporter;
 import me.lucko.spark.fabric.FabricCommandSender;
 import me.lucko.spark.fabric.FabricPlatformInfo;
-import me.lucko.spark.fabric.FabricSparkGameHooks;
 import me.lucko.spark.fabric.FabricSparkMod;
 import me.lucko.spark.fabric.FabricTickHook;
 import me.lucko.spark.fabric.FabricTickReporter;
 
+import net.fabricmc.fabric.api.client.command.v2.ClientCommandRegistrationCallback;
+import net.fabricmc.fabric.api.client.command.v2.FabricClientCommandSource;
 import net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents;
 import net.minecraft.client.MinecraftClient;
-import net.minecraft.client.network.ClientPlayNetworkHandler;
-import net.minecraft.command.CommandSource;
+import net.minecraft.command.CommandRegistryAccess;
 import net.minecraft.server.command.CommandOutput;
 
-import java.util.Arrays;
-import java.util.Optional;
 import java.util.concurrent.CompletableFuture;
-import java.util.concurrent.TimeUnit;
 import java.util.stream.Stream;
 
-public class FabricClientSparkPlugin extends FabricSparkPlugin implements SuggestionProvider<CommandSource> {
+public class FabricClientSparkPlugin extends FabricSparkPlugin implements Command<FabricClientCommandSource>, SuggestionProvider<FabricClientCommandSource> {
 
     public static void register(FabricSparkMod mod, MinecraftClient client) {
         FabricClientSparkPlugin plugin = new FabricClientSparkPlugin(mod, client);
         plugin.enable();
-
-        // ensure commands are registered
-        plugin.scheduler.scheduleWithFixedDelay(plugin::checkCommandRegistered, 10, 10, TimeUnit.SECONDS);
-
-        // register shutdown hook
-        ClientLifecycleEvents.CLIENT_STOPPING.register(stoppingClient -> {
-            if (stoppingClient == plugin.minecraft) {
-                plugin.disable();
-            }
-        });
     }
 
     private final MinecraftClient minecraft;
-    private CommandDispatcher<CommandSource> dispatcher;
 
     public FabricClientSparkPlugin(FabricSparkMod mod, MinecraftClient minecraft) {
         super(mod);
         this.minecraft = minecraft;
     }
 
-    private CommandDispatcher<CommandSource> getPlayerCommandDispatcher() {
-        return Optional.ofNullable(this.minecraft.player)
-                .map(player -> player.networkHandler)
-                .map(ClientPlayNetworkHandler::getCommandDispatcher)
-                .orElse(null);
+    @Override
+    public void enable() {
+        super.enable();
+
+        // events
+        ClientLifecycleEvents.CLIENT_STOPPING.register(this::onDisable);
+        ClientCommandRegistrationCallback.EVENT.register(this::onCommandRegister);
     }
 
-    private void checkCommandRegistered() {
-        CommandDispatcher<CommandSource> dispatcher = getPlayerCommandDispatcher();
-        if (dispatcher == null) {
-            return;
+    private void onDisable(MinecraftClient stoppingClient) {
+        if (stoppingClient == this.minecraft) {
+            disable();
         }
+    }
 
-        try {
-            if (dispatcher != this.dispatcher) {
-                this.dispatcher = dispatcher;
-                registerCommands(this.dispatcher, c -> Command.SINGLE_SUCCESS, this, "sparkc", "sparkclient");
-                FabricSparkGameHooks.INSTANCE.setChatSendCallback(this::onClientChat);
-            }
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
+    public void onCommandRegister(CommandDispatcher<FabricClientCommandSource> dispatcher, CommandRegistryAccess registryAccess) {
+        registerCommands(dispatcher, this, this, "sparkc", "sparkclient");
     }
 
-    public boolean onClientChat(String chat) {
-        String[] args = processArgs(chat, false);
+    @Override
+    public int run(CommandContext<FabricClientCommandSource> context) throws CommandSyntaxException {
+        String[] args = processArgs(context, false, "sparkc", "sparkclient");
         if (args == null) {
-            return false;
+            return 0;
         }
 
         this.threadDumper.ensureSetup();
-        this.platform.executeCommand(new FabricCommandSender(this.minecraft.player, this), args);
-        this.minecraft.inGameHud.getChatHud().addToMessageHistory(chat);
-        return true;
+        this.platform.executeCommand(new FabricCommandSender(context.getSource().getEntity(), this), args);
+        return Command.SINGLE_SUCCESS;
     }
 
     @Override
-    public CompletableFuture<Suggestions> getSuggestions(CommandContext<CommandSource> context, SuggestionsBuilder builder) throws CommandSyntaxException {
-        String[] args = processArgs(context.getInput(), true);
+    public CompletableFuture<Suggestions> getSuggestions(CommandContext<FabricClientCommandSource> context, SuggestionsBuilder builder) throws CommandSyntaxException {
+        String[] args = processArgs(context, true, "/sparkc", "/sparkclient");
         if (args == null) {
             return Suggestions.empty();
         }
 
-        return generateSuggestions(new FabricCommandSender(this.minecraft.player, this), args, builder);
-    }
-
-    private static String[] processArgs(String input, boolean tabComplete) {
-        String[] split = input.split(" ", tabComplete ? -1 : 0);
-        if (split.length == 0 || !split[0].equals("/sparkc") && !split[0].equals("/sparkclient")) {
-            return null;
-        }
-
-        return Arrays.copyOfRange(split, 1, split.length);
+        return generateSuggestions(new FabricCommandSender(context.getSource().getEntity(), this), args, builder);
     }
 
     @Override
diff --git a/spark-fabric/src/main/java/me/lucko/spark/fabric/plugin/FabricServerSparkPlugin.java b/spark-fabric/src/main/java/me/lucko/spark/fabric/plugin/FabricServerSparkPlugin.java
index 8d38b1c..428ac4c 100644
--- a/spark-fabric/src/main/java/me/lucko/spark/fabric/plugin/FabricServerSparkPlugin.java
+++ b/spark-fabric/src/main/java/me/lucko/spark/fabric/plugin/FabricServerSparkPlugin.java
@@ -21,6 +21,7 @@
 package me.lucko.spark.fabric.plugin;
 
 import com.mojang.brigadier.Command;
+import com.mojang.brigadier.CommandDispatcher;
 import com.mojang.brigadier.context.CommandContext;
 import com.mojang.brigadier.exceptions.CommandSyntaxException;
 import com.mojang.brigadier.suggestion.SuggestionProvider;
@@ -28,49 +29,33 @@ import com.mojang.brigadier.suggestion.Suggestions;
 import com.mojang.brigadier.suggestion.SuggestionsBuilder;
 
 import me.lucko.fabric.api.permissions.v0.Permissions;
+import me.lucko.spark.common.monitor.ping.PlayerPingProvider;
 import me.lucko.spark.common.platform.PlatformInfo;
 import me.lucko.spark.common.tick.TickHook;
 import me.lucko.spark.common.tick.TickReporter;
 import me.lucko.spark.fabric.FabricCommandSender;
 import me.lucko.spark.fabric.FabricPlatformInfo;
+import me.lucko.spark.fabric.FabricPlayerPingProvider;
 import me.lucko.spark.fabric.FabricSparkMod;
 import me.lucko.spark.fabric.FabricTickHook;
 import me.lucko.spark.fabric.FabricTickReporter;
-
 import me.lucko.spark.fabric.placeholder.SparkFabricPlaceholderApi;
-import net.fabricmc.fabric.api.command.v1.CommandRegistrationCallback;
-import net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents;
+
 import net.fabricmc.loader.api.FabricLoader;
 import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.server.MinecraftServer;
 import net.minecraft.server.command.CommandOutput;
 import net.minecraft.server.command.ServerCommandSource;
 
-import java.util.Arrays;
 import java.util.concurrent.CompletableFuture;
 import java.util.stream.Stream;
 
 public class FabricServerSparkPlugin extends FabricSparkPlugin implements Command<ServerCommandSource>, SuggestionProvider<ServerCommandSource> {
 
-    public static void register(FabricSparkMod mod, MinecraftServer server) {
+    public static FabricServerSparkPlugin register(FabricSparkMod mod, MinecraftServer server) {
         FabricServerSparkPlugin plugin = new FabricServerSparkPlugin(mod, server);
         plugin.enable();
-
-        // register commands
-        registerCommands(server.getCommandManager().getDispatcher(), plugin, plugin, "spark");
-        CommandRegistrationCallback.EVENT.register((dispatcher, isDedicated) -> registerCommands(dispatcher, plugin, plugin, "spark"));
-
-
-        if (FabricLoader.getInstance().isModLoaded("placeholder-api")) {
-            new SparkFabricPlaceholderApi(plugin.platform);
-        }
-
-        // register shutdown hook
-        ServerLifecycleEvents.SERVER_STOPPING.register(stoppingServer -> {
-            if (stoppingServer == plugin.server) {
-                plugin.disable();
-            }
-        });
+        return plugin;
     }
 
     private final MinecraftServer server;
@@ -81,8 +66,25 @@ public class FabricServerSparkPlugin extends FabricSparkPlugin implements Comman
     }
 
     @Override
+    public void enable() {
+        super.enable();
+
+        // register commands
+        registerCommands(this.server.getCommandManager().getDispatcher());
+
+        // placeholders
+        if (FabricLoader.getInstance().isModLoaded("placeholder-api")) {
+            new SparkFabricPlaceholderApi(this.platform);
+        }
+    }
+
+    public void registerCommands(CommandDispatcher<ServerCommandSource> dispatcher) {
+        registerCommands(dispatcher, this, this, "spark");
+    }
+
+    @Override
     public int run(CommandContext<ServerCommandSource> context) throws CommandSyntaxException {
-        String[] args = processArgs(context, false);
+        String[] args = processArgs(context, false, "/spark", "spark");
         if (args == null) {
             return 0;
         }
@@ -95,7 +97,7 @@ public class FabricServerSparkPlugin extends FabricSparkPlugin implements Comman
 
     @Override
     public CompletableFuture<Suggestions> getSuggestions(CommandContext<ServerCommandSource> context, SuggestionsBuilder builder) throws CommandSyntaxException {
-        String[] args = processArgs(context, true);
+        String[] args = processArgs(context, true, "/spark", "spark");
         if (args == null) {
             return Suggestions.empty();
         }
@@ -103,15 +105,6 @@ public class FabricServerSparkPlugin extends FabricSparkPlugin implements Comman
         return generateSuggestions(new FabricCommandSender(context.getSource().getPlayer(), this), args, builder);
     }
 
-    private static String[] processArgs(CommandContext<ServerCommandSource> context, boolean tabComplete) {
-        String[] split = context.getInput().split(" ", tabComplete ? -1 : 0);
-        if (split.length == 0 || !split[0].equals("/spark") && !split[0].equals("spark")) {
-            return null;
-        }
-
-        return Arrays.copyOfRange(split, 1, split.length);
-    }
-
     @Override
     public boolean hasPermission(CommandOutput sender, String permission) {
         if (sender instanceof PlayerEntity) {
@@ -140,6 +133,11 @@ public class FabricServerSparkPlugin extends FabricSparkPlugin implements Comman
     }
 
     @Override
+    public PlayerPingProvider createPlayerPingProvider() {
+        return new FabricPlayerPingProvider(this.server);
+    }
+
+    @Override
     public PlatformInfo getPlatformInfo() {
         return new FabricPlatformInfo(PlatformInfo.Type.SERVER);
     }
diff --git a/spark-fabric/src/main/java/me/lucko/spark/fabric/plugin/FabricSparkPlugin.java b/spark-fabric/src/main/java/me/lucko/spark/fabric/plugin/FabricSparkPlugin.java
index 4bcfce4..b1392d4 100644
--- a/spark-fabric/src/main/java/me/lucko/spark/fabric/plugin/FabricSparkPlugin.java
+++ b/spark-fabric/src/main/java/me/lucko/spark/fabric/plugin/FabricSparkPlugin.java
@@ -25,6 +25,7 @@ import com.mojang.brigadier.CommandDispatcher;
 import com.mojang.brigadier.arguments.StringArgumentType;
 import com.mojang.brigadier.builder.LiteralArgumentBuilder;
 import com.mojang.brigadier.builder.RequiredArgumentBuilder;
+import com.mojang.brigadier.context.CommandContext;
 import com.mojang.brigadier.suggestion.SuggestionProvider;
 import com.mojang.brigadier.suggestion.Suggestions;
 import com.mojang.brigadier.suggestion.SuggestionsBuilder;
@@ -35,6 +36,7 @@ import me.lucko.spark.common.SparkPlugin;
 import me.lucko.spark.common.command.sender.CommandSender;
 import me.lucko.spark.common.sampler.ThreadDumper;
 import me.lucko.spark.common.util.ClassSourceLookup;
+import me.lucko.spark.common.util.SparkThreadFactory;
 import me.lucko.spark.fabric.FabricClassSourceLookup;
 import me.lucko.spark.fabric.FabricSparkMod;
 
@@ -44,6 +46,7 @@ import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 
 import java.nio.file.Path;
+import java.util.Arrays;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.Executors;
 import java.util.concurrent.ScheduledExecutorService;
@@ -54,22 +57,18 @@ public abstract class FabricSparkPlugin implements SparkPlugin {
     private final FabricSparkMod mod;
     private final Logger logger;
     protected final ScheduledExecutorService scheduler;
-    protected final SparkPlatform platform;
+
+    protected SparkPlatform platform;
     protected final ThreadDumper.GameThread threadDumper = new ThreadDumper.GameThread();
 
     protected FabricSparkPlugin(FabricSparkMod mod) {
         this.mod = mod;
         this.logger = LogManager.getLogger("spark");
-        this.scheduler = Executors.newSingleThreadScheduledExecutor(r -> {
-            Thread thread = Executors.defaultThreadFactory().newThread(r);
-            thread.setName("spark-fabric-async-worker");
-            thread.setDaemon(true);
-            return thread;
-        });
-        this.platform = new SparkPlatform(this);
+        this.scheduler = Executors.newScheduledThreadPool(4, new SparkThreadFactory());
     }
 
     public void enable() {
+        this.platform = new SparkPlatform(this);
         this.platform.enable();
     }
 
@@ -155,4 +154,13 @@ public abstract class FabricSparkPlugin implements SparkPlugin {
         }
     }
 
+    protected static String[] processArgs(CommandContext<?> context, boolean tabComplete, String... aliases) {
+        String[] split = context.getInput().split(" ", tabComplete ? -1 : 0);
+        if (split.length == 0 || !Arrays.asList(aliases).contains(split[0])) {
+            return null;
+        }
+
+        return Arrays.copyOfRange(split, 1, split.length);
+    }
+
 }
diff --git a/spark-fabric/src/main/resources/fabric.mod.json b/spark-fabric/src/main/resources/fabric.mod.json
index a9e15e0..e2e600d 100644
--- a/spark-fabric/src/main/resources/fabric.mod.json
+++ b/spark-fabric/src/main/resources/fabric.mod.json
@@ -23,13 +23,10 @@
             "me.lucko.spark.fabric.FabricSparkMod::initializeClient"
         ]
     },
-    "mixins": [
-        "spark.mixins.json"
-    ],
     "depends": {
         "fabricloader": ">=0.4.0",
         "fabric-api-base": "*",
-        "fabric-command-api-v1": "*",
+        "fabric-command-api-v2": "*",
         "fabric-lifecycle-events-v1" : "*"
     }
 }
diff --git a/spark-fabric/src/main/resources/spark.mixins.json b/spark-fabric/src/main/resources/spark.mixins.json
deleted file mode 100644
index 3f495ea..0000000
--- a/spark-fabric/src/main/resources/spark.mixins.json
+++ /dev/null
@@ -1,11 +0,0 @@
-{
-    "required": true,
-    "package": "me.lucko.spark.fabric.mixin",
-    "compatibilityLevel": "JAVA_8",
-    "client": [
-        "ClientPlayerEntityMixin"
-    ],
-    "injectors": {
-        "defaultRequire": 1
-    }
-}