/**
 * This is the Server's menu.
 * It says: "I have a socket, a port, I can be created, I can be destroyed, I can start, and
 * I have a helper to talk to clients." This short resume doesn't say how Server does any of that.
 */

#ifndef IOVI_NETWORK_ECHO_SERVER_H
#define IOVI_NETWORK_ECHO_SERVER_H

#include "NetworkConfig.h" // We need the rulebook
#include <string>
#include <thread>

class EchoServer {
    SOCKET_TYPE serverSocket; // The main walkie-talkie
    int port;                 // The channel number

    // this helper function belongs to the class itself,
    // not to a specific server object. Threads love static
    static void handleClient(SOCKET_TYPE clientSocket);

public:
    // Constructor: Runs when the server is born
    explicit EchoServer(int p);

    // Destructor: Runs when the server is destroyed (cleans up)
    ~EchoServer();

    // The main action: Starts listening
    // It has a while(true) loop. There is no break; and no return; inside that loop.
    // Normally, a function is like a hallway: you walk in, do some work, and walk out the other end
    // (which is called "returning"). But start() function has a brick wall at the end of the hallway.
    // It will loop forever. CLion warns "Wait, this function never finishes! Is that a mistake?"
    // We add [[noreturn]]. This is a "Warning Label" you stick on the function. It tells the compiler:
    // "I know this never finishes. That is on purpose. Stop worrying."
    [[noreturn]] void start();
};

#endif // IOVI_NETWORK_ECHO_SERVER_H