Add Message

Swift Chat - 9 - Add Message.swift

private func add(_ message: Message, direction: Message.CommunicationDirection) {
    let conversationId = conversationIdFor(message: message, direction: direction)
    if let existingConverstion = conversations[conversationId] {
        existingConverstion.append(message)
    } else {
        let newConversation = Conversation(user: conversationId)
        newConversation.append(message)
        conversations[conversationId] = newConversation
    }
    delegate?.dataStoreDidReceiveNewMessage(forConversationWith: conversationId)
}