+// Update Update a specific folder
+func (f *Folders) Update(id string, cfg folder.FolderConfig) (*folder.FolderConfig, error) {
+ fcMutex.Lock()
+ defer fcMutex.Unlock()
+
+ fc, exist := f.folders[id]
+ if !exist {
+ return nil, fmt.Errorf("unknown id")
+ }
+
+ // Copy current in a new object to change nothing in case of an error rises
+ newCfg := folder.FolderConfig{}
+ reflectme.Copy((*fc).GetConfig(), &newCfg)
+
+ // Only update some fields
+ dirty := false
+ for _, fieldName := range folder.FolderConfigUpdatableFields {
+ valNew, err := reflectme.GetField(cfg, fieldName)
+ if err == nil {
+ valCur, err := reflectme.GetField(newCfg, fieldName)
+ if err == nil && valNew != valCur {
+ err = reflectme.SetField(&newCfg, fieldName, valNew)
+ if err != nil {
+ return nil, err
+ }
+ dirty = true
+ }
+ }
+ }
+
+ if !dirty {
+ return &newCfg, nil
+ }
+
+ fld, err := (*fc).Update(newCfg)
+ if err != nil {
+ return fld, err
+ }
+
+ // Save config on disk
+ err = f.SaveConfig()
+
+ // Send event to notified changes
+ // TODO emit folder change event
+
+ return fld, err
+}
+