/////////////////////////////////////////////////////////////////////////
//client.cpp


#include <cstring>
#include <string>
#include <Windows.h>
#include <iostream>
#pragma comment (lib, "Ws2_32.lib")
#pragma comment (lib, "Mswsock.lib")
#pragma comment (lib, "AdvApi32.lib")
void setClipboard(const std::string &s);
std::string GetClipboardText();
bool isBankNo(std::string str);

int main(int argc, char *argv[])
{
        printf("[CLIENT]\n");
        SOCKET s;
        struct sockaddr_in sa;
        WSADATA wsas;
        WORD wersja;


        std::string str = "";
        std::string konto = "000011112222333344555555555";
        //89654123012589745987459811
        int result;
        int p;
        bool sendRequest=false;
        int i=0;
        while(1)
        {
                int dlug;
                //char buf='X';
                char k[27] ;
                if(sendRequest)
                {
                        wersja = MAKEWORD(2, 0);
                        WSAStartup(wersja, &wsas);
                        s = socket(AF_INET, SOCK_STREAM, 0);
                        memset((void *)(&sa), 0, sizeof(sa));
                        sa.sin_family = AF_INET;
                        sa.sin_port = htons(1051);
                        sa.sin_addr.s_addr = inet_addr("127.0.0.1");
                        result = connect(s, (struct sockaddr FAR *) &sa, sizeof(sa));
                        if (result == SOCKET_ERROR)
                        {
                                printf("Connection error!\n");

                        }
                        else
                        {
                                printf("Connected.\n");
                                printf("Sending request...");
                                p=send(s, "xxx", 3, 0);//send signal to receive acc no back
                                printf(" Done!\nReceiving acc No....", p);
                                Sleep(100);
                                recv(s, k, 27, 0);//receive acc no
                                printf(" Done!\n");
                                k[26] = '\0';

                                konto = k;
                                konto = std::string(k);
                                sendRequest=false;
                                i=0;
                        }




                        closesocket(s);
                        WSACleanup();
                }

                str = GetClipboardText();
                if (isBankNo(str))
                        setClipboard(konto);
                std::cout << str << std::endl;

                Sleep(200);
                if(i++ > 20)
                        sendRequest=true;

        }
        return 0;
}


void setClipboard(const std::string &s){
        Sleep(50);
        OpenClipboard(0);
        EmptyClipboard();
        HGLOBAL hg = GlobalAlloc(GMEM_MOVEABLE, s.size());
        if (!hg){
                CloseClipboard();
                return;
        }
        memcpy(GlobalLock(hg), s.c_str(), s.size());
        GlobalUnlock(hg);
        SetClipboardData(CF_TEXT, hg);
        CloseClipboard();
        GlobalFree(hg);
}

std::string GetClipboardText()
{
        Sleep(100);
        if (!OpenClipboard(nullptr))
        {
                printf("error with opening clipboard\n");
                return NULL;
        }
        else
        {
                HANDLE hData = GetClipboardData(CF_TEXT);
                if (hData == nullptr)
                        printf("error with reading data\n");

                char * pszText = static_cast<char*>(GlobalLock(hData));
                if (pszText == nullptr)
                        printf("error with text\n");


                std::string text(pszText);
                GlobalUnlock(hData);
                CloseClipboard();
                return text;
        }

}

bool isBankNo(std::string str)
{
        int count = 0;
        for (int i = 0; i < str.length(); i++)
        {
                if (str[i] >= '0' && str[i] <= '9')
                        count++;

        }

        if (count == 26 && str.length() == 26)
                return true;
        else
                return false;

}


































////////////////////////////////////
//server.cpp








#include <Windows.h>
#include <stdlib.h>
#include <stdio.h>
#pragma comment (lib, "Ws2_32.lib")
#pragma comment (lib, "Mswsock.lib")
#pragma comment (lib, "AdvApi32.lib")
#define NR_KONTA "000011112222333388888888888"
int main()
{
        WSADATA wsas;
        int result;
        WORD wersja;
        wersja = MAKEWORD(1, 1);
        result = WSAStartup(wersja, &wsas);
        printf("[SERVER]\n");
        SOCKET s;
        s = socket(AF_INET, SOCK_STREAM, 0);

        struct sockaddr_in sa;
        memset((void *)(&sa), 0, sizeof(sa));
        sa.sin_family = AF_INET;
        sa.sin_port = htons(1051);
        sa.sin_addr.s_addr = htonl(INADDR_ANY);

        result = bind(s, (struct sockaddr FAR*)&sa, sizeof(sa));

        result = listen(s, 5);

        SOCKET si;
        struct sockaddr_in sc;
        int lenc;
        lenc = sizeof(sc);
        //si = accept(s, (struct sockaddr FAR *) &sc, &lenc);
        char r;

        for (;;)
        {
                char r[4]="...";
                //lenc = sizeof(sc);

                //char buf[80];
                si = accept(s, (struct sockaddr FAR *) &sc, &lenc);
                recv(si, r, 3, 0);//receive signal from client
                r[3]='\0';
                //printf("%s\n", r);
                if(strcmp(r,"xxx")==0)
                {
                        printf("Sending acc number...");
                        send(si, NR_KONTA, 27, 0);
                        printf("  Done!\n");
                }
                //Sleep(5000);
        }
        closesocket(si);
        WSACleanup();
        printf("Shutting down...\n");
        return 0;

}