refactor: remove dead MetricsHandler and demote noisy logs to debug level

Author: WhatDamon

src/main/java/org/damon233/performtrackermod/controller/TrackerController.java

@@ -130,7 +130,7 @@ public synchronized void start(MinecraftServer server) {
 
         serverCollector.reset();
 
-        LOGGER.info("Performance tracking started, sessionId: {}", sessionId);
+        LOGGER.debug("Performance tracking started, sessionId: {}", sessionId);
     }
 
     private boolean hasAnyMetricEnabled() {
@@ -158,7 +158,7 @@ public synchronized void stop() {
             httpService.stop();
         }
 
-        LOGGER.info("Performance tracking stopped, samples: {}", sampleCount);
+        LOGGER.debug("Performance tracking stopped, samples: {}", sampleCount);
 
         state.set(TrackerState.IDLE);
         lastOutputTime = 0;
@@ -191,7 +191,7 @@ private void onServerTick(MinecraftServer server) {
         if (ConfigAccess.isExportEnabled() && metricsWriter != null) {
             String newFormat = ConfigAccess.getOutputFormat();
             if (!newFormat.equals(currentOutputFormat)) {
-                LOGGER.info("Output format changed from {} to {}, creating new file", currentOutputFormat, newFormat);
+                LOGGER.debug("Output format changed from {} to {}, creating new file", currentOutputFormat, newFormat);
                 try {
                     metricsWriter.close();
                     metricsWriter = createMetricsWriter();

src/main/java/org/damon233/performtrackermod/network/HttpService.java

@@ -27,7 +27,6 @@
 import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
-import java.io.InputStream;
 import java.io.OutputStream;
 import java.net.InetSocketAddress;
 import java.net.URI;
@@ -123,7 +122,6 @@ private boolean startServerInternal() {
             server.setExecutor(serverExecutor);
 
             server.createContext("/api/deviceinfo", new DeviceInfoHandler());
-            server.createContext("/api/metrics", new MetricsHandler());
 
             server.start();
             serverRunning.set(true);
@@ -137,7 +135,7 @@ private boolean startServerInternal() {
 
     private void startSender() {
         if (senderRunning.compareAndSet(false, true)) {
-            LOGGER.info("HttpService sender started, target: {}", remoteUrl);
+            LOGGER.debug("HttpService sender started, target: {}", remoteUrl);
             senderExecutor.execute(this::sendLoop);
         }
     }
@@ -258,41 +256,4 @@ private void sendResponse(HttpExchange exchange, int statusCode, String body) {
             }
         }
     }
-
-    private static class MetricsHandler implements HttpHandler {
-        @Override
-        public void handle(HttpExchange exchange) {
-            if (!"POST".equalsIgnoreCase(exchange.getRequestMethod())) {
-                sendResponse(exchange, 405, "{\"error\":\"Method not allowed\"}");
-                return;
-            }
-            
-            try {
-                int contentLength = Integer.parseInt(exchange.getRequestHeaders().getFirst("Content-Length"));
-                if (contentLength > 0) {
-                    try (InputStream is = exchange.getRequestBody()) {
-                        byte[] body = is.readAllBytes();
-                        LOGGER.debug("Received metrics payload: {} bytes", body.length);
-                    }
-                }
-            } catch (Exception e) {
-                LOGGER.debug("Failed to read metrics payload: {}", e.getMessage());
-            }
-            
-            sendResponse(exchange, 200, "{\"status\":\"ok\"}");
-        }
-        
-        private void sendResponse(HttpExchange exchange, int statusCode, String body) {
-            try {
-                exchange.getResponseHeaders().set("Content-Type", "application/json");
-                byte[] bytes = body.getBytes(StandardCharsets.UTF_8);
-                exchange.sendResponseHeaders(statusCode, bytes.length);
-                try (OutputStream os = exchange.getResponseBody()) {
-                    os.write(bytes);
-                }
-            } catch (IOException e) {
-                LOGGER.debug("Failed to send response: {}", e.getMessage());
-            }
-        }
-    }
 }