// getNextUID will grab the next message UID from the inbox. Client.Mailbox.UIDNext is cached so we can't use it.
func getNextUID(conn *imap.Client) (uint32, error) {
cmd, err := imap.Wait(conn.Status("INBOX", "UIDNEXT"))
if err != nil {
return 0, err
}
if len(cmd.Data) == 0 {
return 0, errors.New("no data returned!")
}
var status *imap.MailboxStatus
for _, resp := range cmd.Data {
switch resp.Type {
case imap.Data:
status = resp.MailboxStatus()
if status != nil {
break
}
}
}
return status.UIDNext, nil
}