/**
* Uploads the received message object to firebase,
* into a dedicated "Chat" folder, generating a uniqe timeStamp id for it;
* @param receivedUserMessage - message object that will be uploaded to Firebase
*/
public static async void uploadMessage(ChatMessageForUpload receivedUserMessage)
{
long currentTime = DateTimeOffset.Now.ToUnixTimeMilliseconds();
string messageID = currentTime.ToString();
await firebaseClient.Child("Chat")
.Child(messageID)
.PutAsync(receivedUserMessage);
}
/**
* Decodes the received data from the client, and acts accordingly to its content;
* Identifies the requests and runs the code further
* @param ar - gets the status of the current async operation, along with the data
*/
public static void ReadCallback(IAsyncResult ar)
{
String content = String.Empty;
StateObject state = (StateObject)ar.AsyncState;
Socket handler = state.workSocket;
int bytesRead = handler.EndReceive(ar);
if (bytesRead > 0)
{
state.sb.Append(Encoding.ASCII.GetString(
state.buffer, 0, bytesRead));
content = state.sb.ToString();
JObject json = JObject.Parse(content);
string eventNameReceived = json["eventName"].Value <string>();
if (eventNameReceived.Equals("Register"))
{
UserData receivedUserRegister = JsonConvert.DeserializeObject <UserData>(content);
checkIfUserExists(handler, receivedUserRegister);
}
if (eventNameReceived.Equals("Login"))
{
UserLoginData receivedUserLogin = JsonConvert.DeserializeObject <UserLoginData>(content);
attemptUserLogin(handler, receivedUserLogin);
}
if (eventNameReceived.Equals("Get_Messages"))
{
string messageJSON = JsonConvert.SerializeObject(allMessagesList, Formatting.Indented);
Send(handler, messageJSON);
}
if (eventNameReceived.Equals("Send_Message"))
{
ChatMessage receivedUserMessage = JsonConvert.DeserializeObject <ChatMessage>(content);
ChatMessageForUpload convertedUserMessage = new ChatMessageForUpload
{
userName = receivedUserMessage.userName,
userMessage = receivedUserMessage.userMessage
};
uploadMessage(convertedUserMessage);
}
if (eventNameReceived.Equals("Delete_Message"))
{
ChatMessage receivedDeleteMessage = JsonConvert.DeserializeObject <ChatMessage>(content);
deleteMessage(receivedDeleteMessage);
}
if (eventNameReceived.Equals("Disconnect"))
{
handler.Shutdown(SocketShutdown.Both);
handler.Close();
}
}
}
