fix: add internal user config

mobile/lib/core/constants.dart

@@ -1,3 +1,5 @@
+import "package:photos/services/feature_flag_service.dart";
+
 const int thumbnailSmallSize = 256;
 const int thumbnailQuality = 50;
 const int thumbnailLargeSize = 512;
@@ -47,6 +49,14 @@ class FFDefault {
 
 // this is the chunk size of the un-encrypted file which is read and encrypted before uploading it as a single part.
 const multipartPartSize = 20 * 1024 * 1024;
+const multipartPartSizeInternal = 8 * 1024 * 1024;
+
+int get multipartPartSizeForUpload {
+  if (FeatureFlagService.instance.isInternalUserOrDebugBuild()) {
+    return multipartPartSizeInternal;
+  }
+  return multipartPartSize;
+}
 
 const kDefaultProductionEndpoint = 'https://api.ente.io';
 

mobile/lib/db/upload_locks_db.dart

@@ -273,7 +273,7 @@ class UploadLocksDB {
         _trackUploadTable.columnEncryptedFilePath: encryptedFilePath,
         _trackUploadTable.columnEncryptedFileSize: fileSize,
         _trackUploadTable.columnFileKey: fileKey,
-        _trackUploadTable.columnPartSize: multipartPartSize,
+        _trackUploadTable.columnPartSize: multipartPartSizeForUpload,
       },
     );
 

mobile/lib/utils/multipart_upload_util.dart

@@ -58,7 +58,7 @@ class MultipartUploadURLs {
 }
 
 Future<int> calculatePartCount(int fileSize) async {
-  final partCount = (fileSize / multipartPartSize).ceil();
+  final partCount = (fileSize / multipartPartSizeForUpload).ceil();
   return partCount;
 }
 
@@ -148,14 +148,14 @@ Future<Map<int, String>> uploadParts(
     final partURL = partsURLs[i];
     final isLastPart = i == partsLength - 1;
     final fileSize = isLastPart
-        ? encryptedFile.lengthSync() % multipartPartSize
-        : multipartPartSize;
+        ? encryptedFile.lengthSync() % multipartPartSizeForUpload
+        : multipartPartSizeForUpload;
 
     final response = await _dio.put(
       partURL,
       data: encryptedFile.openRead(
-        i * multipartPartSize,
-        isLastPart ? null : (i + 1) * multipartPartSize,
+        i * multipartPartSizeForUpload,
+        isLastPart ? null : (i + 1) * multipartPartSizeForUpload,
       ),
       options: Options(
         headers: {