// Mbed B


#include "mbed.h"
#include "EthernetInterface.h"
#include "uLCD_4DGL.h"

DigitalOut l1(LED1);
DigitalOut l2(LED2);
DigitalOut l3(LED3);
DigitalOut l4(LED4);
uLCD_4DGL uLCD  (p9,p10,p8);      // serial tx, serial rx, reset pin;

const int ECHO_SERVER_PORT = 7;
const char* ECHO_SERVER_ADDRESS = "192.168.1.1";    // Adress from other Mbed
 
int main () 
{
    EthernetInterface eth;
    const char* ip = "192.168.1.2";     // MBED A = 1; MBED B = 2
    const char* mask = "255.255.255.0";
    const char* gateway = "192.168.1.10";
    eth.init(ip, mask, gateway);     //I'dont use DHCP bacuse i use two mbeds
    eth.connect();
    uLCD.printf("Client IP Address is %s\n", eth.getIPAddress());
    
    // Connect to Server
    TCPSocketConnection socket;
    while (socket.connect(ECHO_SERVER_ADDRESS, ECHO_SERVER_PORT) < 0) 
    {
        uLCD.printf("Unable to connect to (%s) \non port (%d)\n", ECHO_SERVER_ADDRESS, ECHO_SERVER_PORT);
        wait(1);
    }
    uLCD.printf("Connected to Server at %s\n",ECHO_SERVER_ADDRESS);
    
    // Send message to server
    char hello[] = "Hello World";
    uLCD.printf("Sending  message to Server : '%s' \n",hello);
    socket.send_all(hello, sizeof(hello) - 1);
    
    // Receive message from server
    char buf[256];
    int n = socket.receive(buf, 256);
    buf[n] = '\0';
    uLCD.printf("Received message from server: '%s'\n", buf);
    
    // Clean up
    socket.close();
    eth.disconnect();
    
    while(true) {}
}