#include <iostream>
#include "afxsock.h"
#include "math.h"
#include<string>

#ifdef _DEBUG
#define new DEBUG_NEW
#endif
#define Saddress "127.0.0.1"
#define port 8080 //Same port as server
CWinApp theApp;

using namespace std;

int _tmain(int argc, TCHAR* argv[], TCHAR* envp[])
{
	int nRetCode = 0;

	//initialize MFC and print and error on failure
	if (!AfxWinInit(::GetModuleHandle(NULL), NULL, GetCommandLine(), 0))
	{
		//TODO: change error code to suit your needs
		_tprintf(_T("Fatal error: MFC initialization failed\n"));
		nRetCode = 1;
	}
	else {
		//TODO: code your application's behaviour here
		CSocket client;
		AfxSocketInit(NULL);

		//1.Create Socket
		client.Create();

		if (client.Connect(CA2W(Saddress), port))
		{
			cout << "Client have connected to Server!" << endl;

			//Receiving from server the position number
			int id;
			client.Receive((char*)&id, sizeof(id), 0);
			cout << "\n\nThis is client number " << id + 1 << endl << endl;


			char  r_str[1000], s_str[1000];
			//Receiving returning results from server
			client.Receive(r_str, 10, 0);
			int len = atoi(r_str);
			client.Receive(r_str, len, 0);
			r_str[len] = 0;

			cout << "\nServer: " << r_str;
			

			//Send command q/l/r
			gets_s(s_str);
			//Wrong command
			while (strcmp(s_str, "q") != 0 && strcmp(s_str, "quit") != 0 && strcmp(s_str, "login") != 0 && strcmp(s_str, "l") != 0 && strcmp(s_str, "r") != 0 && strcmp(s_str, "register") != 0) {
				cout << "Wrong command" << endl;
				cout << "Retype: ";
				gets_s(s_str);
			}
			// goi chieu dai chuoi
			char buff[10];
			_itoa_s(strlen(s_str), buff, 10);
			client.Send(buff, 10, 0);
			//gui chuoi
			client.Send(s_str, strlen(s_str), 0);
			if (strcmp(s_str, "q") == 0 || strcmp(s_str, "quit") == 0) {
				client.Close();
				return nRetCode;
			}
			else {
				//username
				client.Receive(r_str, 10, 0);
				len = atoi(r_str);
				client.Receive(r_str, len, 0);
				r_str[len] = 0;

				cout << r_str;

				//Send username
				char username[1000];
				gets_s(username);
				// goi chieu dai chuoi

				_itoa_s(strlen(username), buff, 10);
				client.Send(buff, 10, 0);
				//gui chuoi
				client.Send(username, strlen(username), 0);

				// Nhan password
				client.Receive(r_str, 10, 0);
				len = atoi(r_str);
				client.Receive(r_str, len, 0);
				r_str[len] = 0;

				cout << r_str;

				//Send password
				char password[1000];
				gets_s(password);
				// goi chieu dai chuoi

				_itoa_s(strlen(password), buff, 10);
				client.Send(buff, 10, 0);
				//gui chuoi
				client.Send(password, strlen(password), 0);

				//nhan ket qua
				client.Receive(r_str, 10, 0);
				len = atoi(r_str);
				client.Receive(r_str, len, 0);
				r_str[len] = 0;
				cout << r_str;

				char command[1000];
				gets_s(command);
				_itoa_s(strlen(command), buff, 10);
				client.Send(buff, 10, 0);
				//gui chuoi
				client.Send(command, strlen(command), 0);

				client.Close();
				return nRetCode;
			}


			
			
		}
		else {
			printf("Can not connect to server!");
		}
		getchar();
		client.Close();
	}
	getchar();
	return nRetCode;
}