[#185] tree: Fix getSubTreeMultipartUploads

Every tree node contains only FileName
but key in multipart info must contain FilePath

Signed-off-by: Denis Kirillov <d.kirillov@yadro.com>

pkg/service/tree/tree.go

@@ -221,6 +221,30 @@ func newNodeVersionFromTreeNode(filePath string, treeNode *treeNode) *data.NodeV
 	return version
 }
 
+func newMultipartInfoFromTreeNode(filePath string, treeNode *treeNode) (*data.MultipartInfo, error) {
+	uploadID, _ := treeNode.Get(uploadIDKV)
+	if uploadID == "" {
+		return nil, fmt.Errorf("it's not a multipart node")
+	}
+
+	multipartInfo := &data.MultipartInfo{
+		ID:       treeNode.ID,
+		Key:      filePath,
+		UploadID: uploadID,
+		Meta:     treeNode.Meta,
+	}
+
+	ownerID, _ := treeNode.Get(ownerKV)
+	_ = multipartInfo.Owner.DecodeString(ownerID)
+
+	created, _ := treeNode.Get(createdKV)
+	if utcMilli, err := strconv.ParseInt(created, 10, 64); err == nil {
+		multipartInfo.Created = time.UnixMilli(utcMilli)
+	}
+
+	return multipartInfo, nil
+}
+
 func newMultipartInfo(node NodeResponse) (*data.MultipartInfo, error) {
 	multipartInfo := &data.MultipartInfo{
 		ID:   node.GetNodeID(),
@@ -858,14 +882,14 @@ func (c *Tree) CreateMultipartUpload(ctx context.Context, bktInfo *data.BucketIn
 }
 
 func (c *Tree) GetMultipartUploadsByPrefix(ctx context.Context, bktInfo *data.BucketInfo, prefix string) ([]*data.MultipartInfo, error) {
-	subTreeNodes, _, err := c.getSubTreeByPrefix(ctx, bktInfo, systemTree, prefix, false)
+	subTreeNodes, headPrefix, err := c.getSubTreeByPrefix(ctx, bktInfo, systemTree, prefix, false)
 	if err != nil {
 		return nil, err
 	}
 
 	var result []*data.MultipartInfo
 	for _, node := range subTreeNodes {
-		multipartUploads, err := c.getSubTreeMultipartUploads(ctx, bktInfo, node.GetNodeID())
+		multipartUploads, err := c.getSubTreeMultipartUploads(ctx, bktInfo, node.GetNodeID(), headPrefix)
 		if err != nil {
 			return nil, err
 		}
@@ -875,19 +899,55 @@ func (c *Tree) GetMultipartUploadsByPrefix(ctx context.Context, bktInfo *data.Bu
 	return result, nil
 }
 
-func (c *Tree) getSubTreeMultipartUploads(ctx context.Context, bktInfo *data.BucketInfo, nodeID uint64) ([]*data.MultipartInfo, error) {
+func (c *Tree) getSubTreeMultipartUploads(ctx context.Context, bktInfo *data.BucketInfo, nodeID uint64, parentFilePath string) ([]*data.MultipartInfo, error) {
 	subTree, err := c.service.GetSubTree(ctx, bktInfo, systemTree, nodeID, maxGetSubTreeDepth)
 	if err != nil {
 		return nil, err
 	}
 
-	result := make([]*data.MultipartInfo, 0, len(subTree))
-	for _, node := range subTree {
-		multipartInfo, err := newMultipartInfo(node)
-		if err != nil { // missed uploadID (it's a part node)
+	var parentPrefix string
+	if parentFilePath != "" { // The root of subTree can also have a parent
+		parentPrefix = strings.TrimSuffix(parentFilePath, separator) + separator // To avoid 'foo//bar'
+	}
+
+	var filepath string
+	namesMap := make(map[uint64]string, len(subTree))
+	multiparts := make(map[string][]*data.MultipartInfo, len(subTree))
+
+	for i, node := range subTree {
+		treeNode, fileName, err := parseTreeNode(node)
+		if err != nil {
 			continue
 		}
-		result = append(result, multipartInfo)
+
+		if i != 0 {
+			if filepath, err = formFilePath(node, fileName, namesMap); err != nil {
+				return nil, fmt.Errorf("invalid node order: %w", err)
+			}
+		} else {
+			filepath = parentPrefix + fileName
+			namesMap[treeNode.ID] = filepath
+		}
+
+		multipartInfo, err := newMultipartInfoFromTreeNode(filepath, treeNode)
+		if err != nil {
+			continue
+		}
+
+		key := formLatestNodeKey(node.GetParentID(), fileName)
+		multipartInfos, ok := multiparts[key]
+		if !ok {
+			multipartInfos = []*data.MultipartInfo{multipartInfo}
+		} else {
+			multipartInfos = append(multipartInfos, multipartInfo)
+		}
+
+		multiparts[key] = multipartInfos
+	}
+
+	result := make([]*data.MultipartInfo, 0, len(multiparts))
+	for _, multipartInfo := range multiparts {
+		result = append(result, multipartInfo...)
 	}
 
 	return result, nil