Merge pull request #4 from utkarshdalal/cd-rev4-utkarsh

Add onChunkCompleted callback

Author: LossyDragon

javasteam-depotdownloader/src/main/kotlin/in/dragonbra/javasteam/depotdownloader/DepotDownloader.kt

@@ -1499,17 +1499,36 @@ class DepotDownloader @JvmOverloads constructor(
 
             logger?.debug("%.2f%% %s".format(depotPercentage, fileFinalPath))
         } else {
-            // Just update counters without notifying
+            // Update counters and notify on chunk completion
+            val sizeDownloaded: Long
+            val depotPercentage: Float
+            val compressedBytes: Long
+            val uncompressedBytes: Long
+
             synchronized(depotDownloadCounter) {
                 depotDownloadCounter.sizeDownloaded += written.toLong()
                 depotDownloadCounter.depotBytesCompressed += chunk.compressedLength
                 depotDownloadCounter.depotBytesUncompressed += chunk.uncompressedLength
+
+                sizeDownloaded = depotDownloadCounter.sizeDownloaded
+                compressedBytes = depotDownloadCounter.depotBytesCompressed
+                uncompressedBytes = depotDownloadCounter.depotBytesUncompressed
+                depotPercentage = (sizeDownloaded.toFloat() / depotDownloadCounter.completeDownloadSize)
             }
 
             synchronized(downloadCounter) {
                 downloadCounter.totalBytesCompressed += chunk.compressedLength
                 downloadCounter.totalBytesUncompressed += chunk.uncompressedLength
             }
+
+            notifyListeners { listener ->
+                listener.onChunkCompleted(
+                    depotId = depot.depotId,
+                    depotPercentComplete = depotPercentage,
+                    compressedBytes = compressedBytes,
+                    uncompressedBytes = uncompressedBytes
+                )
+            }
         }
     }
 

javasteam-depotdownloader/src/main/kotlin/in/dragonbra/javasteam/depotdownloader/IDownloadListener.kt

@@ -48,6 +48,17 @@ interface IDownloadListener {
      */
     fun onFileCompleted(depotId: Int, fileName: String, depotPercentComplete: Float) {}
 
+    /**
+     * Called when a chunk completes downloading.
+     * Provides more frequent progress updates than onFileCompleted.
+     *
+     * @param depotId The depot being downloaded
+     * @param depotPercentComplete Overall depot completion percentage (0f to 1f)
+     * @param compressedBytes Total compressed bytes downloaded so far for this depot
+     * @param uncompressedBytes Total uncompressed bytes downloaded so far for this depot
+     */
+    fun onChunkCompleted(depotId: Int, depotPercentComplete: Float, compressedBytes: Long, uncompressedBytes: Long) {}
+
     /**
      * Called when a depot finishes downloading.
      * Use this for printing summary like "Depot 228990 - Downloaded X bytes (Y bytes uncompressed)"