enum DatabaseAction: Codable {
    case storedAccountsLoaded(accounts: [Account])
    case loadingStoredAccountsFailed
    case updateAccountFailed

    case storedRostersLoaded(rosters: [Roster])
    case storedChatsLoaded(chats: [Chat])

    case storeMessageFailed(reason: String)

    case updateAttachmentFailed(id: String, reason: String)
}