enum XMPPAction: Codable {
    case clientConnectionChanged(jid: String, state: ConnectionStatus)
    case xmppMessageReceived(Message)

    case xmppMessageSent(Message)
    case xmppMessageSendFailed(msgId: String)
    case xmppMessageSendSuccess(msgId: String)

    case xmppAttachmentUpload(Message)
    // case xmppAttachmentSlotRequestDone(String) //TODO: ???
    case xmppAttachmentUploadFailed(msgId: String, reason: String)
    case xmppAttachmentUploadSuccess(msgId: String, attachmentRemotePath: String)
}