Sync all IMAP folders

backend/05-imap-target.go

@@ -29,14 +29,35 @@ func OpenIMAPTarget(a Account) (TargetMailbox, error) {
 }
 
 type imapTarget struct {
-	c *simpleIMAP
+	c     *simpleIMAP
+	delim string
 }
 
 func (t *imapTarget) Folders() ([]TargetFolder, error) {
-	return []TargetFolder{{Name: "INBOX"}}, nil
+	boxes, err := t.c.listMailboxes()
+	if err != nil {
+		return nil, err
+	}
+	folders := make([]TargetFolder, 0, len(boxes))
+	for _, box := range boxes {
+		if t.delim == "" && box.Delim != "" {
+			t.delim = box.Delim
+		}
+		if hasIMAPAttr(box.Attrs, `\Noselect`) {
+			continue
+		}
+		folders = append(folders, TargetFolder{Name: box.Name, Attrs: box.Attrs})
+	}
+	if len(folders) == 0 {
+		folders = append(folders, TargetFolder{Name: "INBOX"})
+	}
+	return folders, nil
 }
 
 func (t *imapTarget) Delim() string {
+	if t.delim != "" {
+		return t.delim
+	}
 	return "/"
 }