Added pauseplay command demo

src/main/java/plu/capstone/playerpiano/addon/minecraftmod/PianoMod.java

@@ -5,6 +5,8 @@
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import plu.capstone.playerpiano.addon.minecraftmod.command.ModCommands;
+import plu.capstone.playerpiano.addon.minecraftmod.piano.PianoWSClient;
 
 public class PianoMod implements ModInitializer {
 	// This logger is used to write text to the console and the log file.
@@ -22,6 +24,8 @@ public void onInitialize() {
 
 		LOGGER.info("Hello Fabric world!");
 
+        ModCommands.registerModCommands();
+
         try {
             wsClient = new PianoWSClient("ws://localhost:8898/ws");
             wsClient.connect();

src/main/java/plu/capstone/playerpiano/addon/minecraftmod/command/ModCommands.java

@@ -0,0 +1,23 @@
+package plu.capstone.playerpiano.addon.minecraftmod.command;
+
+import com.mojang.brigadier.context.CommandContext;
+import net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback;
+import net.minecraft.server.command.ServerCommandSource;
+import net.minecraft.text.Text;
+
+public class ModCommands {
+
+    public static void registerModCommands() {
+        CommandRegistrationCallback.EVENT.register((dispatcher, registryAccess, environment) -> {
+            TestCommand.register(dispatcher);
+            PauseUnpauseCommand.register(dispatcher);
+        });
+    }
+
+    public static void sendFeedback(CommandContext<ServerCommandSource> context, String text) {
+        sendFeedback(context, Text.of(text));
+    }
+    public static void sendFeedback(CommandContext<ServerCommandSource> context, Text msg) {
+        context.getSource().sendFeedback(() -> msg, false);
+    }
+}

src/main/java/plu/capstone/playerpiano/addon/minecraftmod/command/PauseUnpauseCommand.java

@@ -0,0 +1,22 @@
+package plu.capstone.playerpiano.addon.minecraftmod.command;
+
+import com.mojang.brigadier.CommandDispatcher;
+import com.mojang.brigadier.context.CommandContext;
+import net.minecraft.server.command.CommandManager;
+import net.minecraft.server.command.ServerCommandSource;
+import plu.capstone.playerpiano.addon.minecraftmod.piano.PianoController;
+
+public class PauseUnpauseCommand {
+
+    public static void register(CommandDispatcher<ServerCommandSource> dispatcher) {
+        dispatcher.register(CommandManager.literal("piano-pause").executes(PauseUnpauseCommand::execute));
+    }
+
+    private static int execute(CommandContext<ServerCommandSource> context) {
+
+        PianoController.getInstance().pauseUnpauseSong();
+
+        return 1;
+    }
+
+}

src/main/java/plu/capstone/playerpiano/addon/minecraftmod/command/TestCommand.java

@@ -0,0 +1,20 @@
+package plu.capstone.playerpiano.addon.minecraftmod.command;
+
+import com.mojang.brigadier.CommandDispatcher;
+import com.mojang.brigadier.context.CommandContext;
+import net.minecraft.server.command.CommandManager;
+import net.minecraft.server.command.ServerCommandSource;
+
+public class TestCommand {
+
+    public static void register(CommandDispatcher<ServerCommandSource> dispatcher) {
+        dispatcher.register(CommandManager.literal("hello").executes(TestCommand::execute));
+    }
+
+    private static int execute(CommandContext<ServerCommandSource> context) {
+        String text = "Hello, " + context.getSource().getPlayer().getDisplayName().getString() + "!";
+        ModCommands.sendFeedback(context, text);
+        return 1;
+    }
+
+}

src/main/java/plu/capstone/playerpiano/addon/minecraftmod/piano/PianoController.java

@@ -0,0 +1,48 @@
+package plu.capstone.playerpiano.addon.minecraftmod.piano;
+
+import java.net.URI;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpRequest.BodyPublishers;
+import java.net.http.HttpResponse.BodyHandlers;
+import java.net.http.HttpResponse;
+import java.time.Duration;
+import java.util.function.Consumer;
+
+
+public class PianoController {
+
+    HttpClient client = HttpClient.newHttpClient();
+
+    private static PianoController instance;
+
+    private String uuid;
+
+    public static PianoController getInstance() {
+        if(instance == null) instance = new PianoController();
+        return instance;
+    }
+
+    public void onConnect(String uuid) {
+        this.uuid = uuid;
+    }
+
+    public void pauseUnpauseSong() {
+        sendPostRequest("control/pause", "", System.out::println);
+    }
+
+    private void sendPostRequest(String url, String body, Consumer<String> callback) {
+
+        HttpRequest request = HttpRequest.newBuilder()
+                .uri(URI.create("http://localhost:8898/api/" + url))
+                .timeout(Duration.ofSeconds(5))
+                .header("Content-Type", "application/json")
+                .POST(BodyPublishers.ofString(body))
+                .build();
+        client.sendAsync(request, BodyHandlers.ofString())
+                .thenApply(HttpResponse::body)
+                .thenAccept(callback);
+
+    }
+
+}