complete

src/main/java/ProgressMonitor.java

@@ -6,26 +6,19 @@ public class ProgressMonitor implements Runnable {
     private final int totalSizeMB;
     private final List<ChunkStatus> chunks;
     private final long monitorDelayMs;
+    private final long startTimeMs;
 
     public ProgressMonitor(DownloadConfig config, List<ChunkStatus> chunks) {
         this.fileName = config.getFileName();
         this.totalSizeMB = config.getTotalSizeMB();
         this.chunks = chunks;
         this.monitorDelayMs = 500;
+        this.startTimeMs = System.currentTimeMillis();
     }
 
     @Override
     public void run() {
-        // TODO:
-        // Repeatedly check chunk progress until all chunks are completed.
-        // In each loop:
-        // 1. Read the downloaded size from every chunk
-        // 2. Add all downloaded amounts to totalDownloadedMB
-        // 3. Count completed chunks
-        // 4. Print a progress message
-        // 5. If completedChunks == chunks.size(), print a final monitor message and stop
-        // 6. Otherwise sleep for monitorDelayMs and continue
-
+        System.out.println("=== Download Progress ===");
 
         while (true) {
             double totalDownloadedMB = 0.0;
@@ -44,19 +37,36 @@ public class ProgressMonitor implements Runnable {
                 percent = (totalDownloadedMB * 100.0) / totalSizeMB;
             }
 
-            System.out.printf(
-                    "Progress for %s: %.1f/%.1f MB (%.2f%%), completed chunks: %d/%d%n",
+            long elapsedMs = System.currentTimeMillis() - startTimeMs;
+            double elapsedSec = elapsedMs / 1000.0;
+            double speedMBps = (elapsedSec > 0) ? (totalDownloadedMB / elapsedSec) : 0.0;
+            double remainingMB = totalSizeMB - totalDownloadedMB;
+            double etaSec = (speedMBps > 0) ? (remainingMB / speedMBps) : 0.0;
+
+            int barLength = 30;
+            int filled = (int) (percent / 100.0 * barLength);
+            StringBuilder bar = new StringBuilder("[");
+            for (int i = 0; i < barLength; i++) {
+                bar.append(i < filled ? "=" : " ");
+            }
+            bar.append("]");
+
+            System.out.printf("\r%s %s %.1f/%.1f MB (%.1f%%) | Speed: %.1f MB/s | ETA: %.0fs | Chunks: %d/%d",
+                    bar.toString(),
                     fileName,
                     totalDownloadedMB,
                     (double) totalSizeMB,
                     percent,
+                    speedMBps,
+                    etaSec,
                     completedChunks,
                     chunks.size()
             );
 
-
-            // TODO:
-            // If all chunks are completed, print a final message and exit the loop
+            if (completedChunks == chunks.size()) {
+                System.out.println("Monitor: All chunks completed.");
+                break;
+            }
 
             try {
                 Thread.sleep(monitorDelayMs);