Update uploadFilesForDatasetDocuments to Conditionally Upload and Return Status

src/ndi/+ndi/+cloud/+sync/+internal/uploadFilesForDatasetDocuments.m

@@ -1,4 +1,4 @@
-function uploadFilesForDatasetDocuments(cloudDatasetId, ndiDataset, dataset_documents, options)
+function [success, message] = uploadFilesForDatasetDocuments(cloudDatasetId, ndiDataset, dataset_documents, options)
 % uploadFilesForDatasetDocuments - Upload a set of files belonging to a set of dataset documents
     arguments
         cloudDatasetId (1,1) string
@@ -7,13 +7,44 @@ function uploadFilesForDatasetDocuments(cloudDatasetId, ndiDataset, dataset_docu
         options.Verbose (1,1) logical = true
         options.FileUploadStrategy (1,1) string ...
             {mustBeMember(options.FileUploadStrategy, ["serial", "batch"])} = "batch"
+        options.updateMissing (1,1) logical = true
     end
 
+    success = true;
+    message = '';
+
     file_manifest = ...
         ndi.database.internal.list_binary_files(...
         ndiDataset, dataset_documents, options.Verbose);
     [file_manifest(:).is_uploaded] = deal(false);
 
+    if options.updateMissing
+        [b, answer] = ndi.cloud.api.datasets.getDataset(cloudDatasetId);
+        if b && isfield(answer, 'files')
+            remote_files = containers.Map();
+            for i=1:numel(answer.files)
+                remote_files(answer.files(i).uid) = 1;
+            end
+
+            files_to_upload = struct('uid',{},'bytes',{},'file_path',{},'is_uploaded',{});
+            for i=1:numel(file_manifest)
+                if ~isKey(remote_files, file_manifest(i).uid)
+                    files_to_upload(end+1) = file_manifest(i);
+                end
+            end
+            file_manifest = files_to_upload;
+        else
+            success = false;
+            message = 'Could not retrieve remote dataset file list.';
+            return;
+        end
+    end
+
+    if isempty(file_manifest)
+        message = 'All files are already on the remote.';
+        return;
+    end
+
     totalSizeKb = sum([file_manifest.bytes]) / 1e3;
 
     switch options.FileUploadStrategy
@@ -23,13 +54,30 @@ function uploadFilesForDatasetDocuments(cloudDatasetId, ndiDataset, dataset_docu
             app.addBar('Label','Uploading document-associated binary files','tag',uuid,'Auto',true);
             for i=1:numel(file_manifest)
                 if file_manifest(i).is_uploaded==false
-                    [success,uploadURL]=ndi.cloud.api.files.getFileUploadURL(cloudDatasetId,file_manifest(i).uid);
-                    if ~success, warning('Failed to get upload URL'); continue; end
-                    [~] = ndi.cloud.api.files.putFiles(uploadURL,file_manifest(i).file_path);
+                    [url_success,uploadURL]=ndi.cloud.api.files.getFileUploadURL(cloudDatasetId,file_manifest(i).uid);
+                    if ~url_success
+                        warning('Failed to get upload URL');
+                        if success
+                           message = ['Failed to get upload URL for ' file_manifest(i).uid];
+                        end
+                        success = false;
+                        continue;
+                    end
+                    [put_success] = ndi.cloud.api.files.putFiles(uploadURL,file_manifest(i).file_path);
+                    if ~put_success
+                        if success
+                            message = ['Failed to upload file ' file_manifest(i).uid];
+                        end
+                        success = false;
+                    end
                 end
                 app.updateBar(uuid,i/numel(file_manifest));
             end
         case "batch"
-            [~, ~] = ndi.cloud.upload.zipForUpload(ndiDataset, file_manifest, totalSizeKb, cloudDatasetId);
+            [batch_success, batch_message] = ndi.cloud.upload.zipForUpload(ndiDataset, file_manifest, totalSizeKb, cloudDatasetId);
+            if ~batch_success
+                success = false;
+                message = batch_message;
+            end
     end
 end