fix(user_store): add a work around for calculating used space

src/client/web/src/components/panel_files.tsx

@@ -897,13 +897,21 @@ export class FilesPanel extends React.Component<Props, State, {}> {
       );
 
     const usedSpace = FileSize(
-      parseInt(this.props.login.extInfo.usedSpace, 10),
+      // TODO: this a work around before transaction is introduced
+      Math.trunc(
+        parseInt(this.props.login.extInfo.usedSpace, 10) / (1024 * 1024)
+      ) *
+        (1024 * 1024),
       {
         round: 0,
       }
     );
     const spaceLimit = FileSize(
-      parseInt(this.props.login.quota.spaceLimit, 10),
+      // TODO: this a work around before transaction is introduced
+      Math.trunc(
+        parseInt(this.props.login.quota.spaceLimit, 10) / (1024 * 1024)
+      ) *
+        (1024 * 1024),
       {
         round: 0,
       }

src/db/userstore/user_store.go

@@ -381,6 +381,9 @@ func (us *KVUserStore) SetUsed(id uint64, incr bool, capacity int64) error {
 		gotUser.UsedSpace = gotUser.UsedSpace + capacity
 	} else {
 		gotUser.UsedSpace = gotUser.UsedSpace - capacity
+		if gotUser.UsedSpace < 0 { // TODO: this is a work around
+			gotUser.UsedSpace = 0
+		}
 	}
 	infoBytes, err := json.Marshal(gotUser)
 	if err != nil {