more smaller bug fixes

lib/src/database/daos/messages.dao.dart

@@ -184,7 +184,15 @@ class MessagesDao extends DatabaseAccessor<TwonlyDB> with _$MessagesDaoMixin {
       return;
     }
     if (msg.mediaId != null && contactId != null) {
-      // contactId -> When a image is send to multiple and one message is delete the image should be still available...
+      final otherMessagesWithSameMedia = await (select(messages)
+            ..where(
+              (t) =>
+                  t.mediaId.equals(msg.mediaId!) &
+                  t.messageId.equals(messageId).not(),
+            ))
+          .get();
+
+      if (otherMessagesWithSameMedia.isEmpty) {
         await (delete(
           mediaFiles,
         )..where((t) => t.mediaId.equals(msg.mediaId!))).go();
@@ -193,6 +201,11 @@ class MessagesDao extends DatabaseAccessor<TwonlyDB> with _$MessagesDaoMixin {
         if (mediaService != null) {
           mediaService.fullMediaRemoval();
         }
+      } else {
+        Log.info(
+          'Media ${msg.mediaId} is still used by ${otherMessagesWithSameMedia.length} other messages. Skipping physical deletion.',
+        );
+      }
     }
     await (delete(
       messageHistories,

lib/src/services/api/mediafiles/upload.api.dart

@@ -204,11 +204,42 @@ Future<void> finishStartedPreprocessing() async {
           // media files was just stored..
           continue;
         }
-        Log.info(
+        if (mediaFile.reuploadRequestedBy != null) {
-          'Deleted media files, as originalPath and uploadRequestPath both do not exists',
+          Log.warn(
+            'Reupload requested for ${mediaFile.mediaId} but files are missing. Cancelling reupload but keeping record.',
           );
-        // the file does not exists anymore.
+          await twonlyDB.mediaFilesDao.updateMedia(
+            mediaFile.mediaId,
+            const MediaFilesCompanion(
+              uploadState: Value(UploadState.uploaded),
+              reuploadRequestedBy: Value(null),
+            ),
+          );
+          continue;
+        }
+
+        final messages = await twonlyDB.messagesDao.getMessagesByMediaId(
+          mediaFile.mediaId,
+        );
+
+        if (messages.isEmpty) {
+          Log.info(
+            'Deleted media files ${mediaFile.mediaId} as originalPath and uploadRequestPath both do not exists and no messages reference it.',
+          );
+          // the file does not exists anymore and no messages reference it.
           await twonlyDB.mediaFilesDao.deleteMediaFile(mediaFile.mediaId);
+        } else {
+          Log.warn(
+            'Media files ${mediaFile.mediaId} missing but messages still reference it. Keeping record to avoid broken chat history.',
+          );
+          // Just mark as uploaded to stop preprocessing attempts
+          await twonlyDB.mediaFilesDao.updateMedia(
+            mediaFile.mediaId,
+            const MediaFilesCompanion(
+              uploadState: Value(UploadState.uploaded),
+            ),
+          );
+        }
         continue;
       }
       Log.info(

lib/src/services/mediafiles/mediafile.service.dart

@@ -78,7 +78,7 @@ class MediaFileService {
                 final group = await twonlyDB.groupsDao.getGroup(
                   message.groupId,
                 );
-                if (group != null && !group.isDirectChat) {
+                if (group != null) {
                   delete = false;
                 }
               }