MidiServer.h

//Midi Server using RtMidi
//Step1 Setup & configure midi device
//step2 read inputs from midi device
//step3 listen for connecting clients
//step4 send midi data to client

#pragma once

//c libraries must be used for some of the operations used
//so these need to be brought in as c++ equivs of old c headers
#include <cstring>
#include <cstdio>
#include <cstdlib>

#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <iostream>
#include <fstream>
#include <vector>

// external libraries used
#include "rtmidi-3.0.0/RtMidi.h"

using namespace std;
class MidiServer{
protected:
	static const unsigned int buffer_size = 4096;
	unsigned char buffer[buffer_size]; //buffer used by server to send messages
	std::vector<unsigned char> midiBuffer; //buffer used by midi to read input
	int server_fd, client_fd;
	int valread;
	struct sockaddr_in address;
	int portno;
	
	RtMidiIn *midi;
	
	int configurePort();
	int bindServer();
	void clearBuffer();
	
	int awaitConnection();
	//when a server succesfully connects to a client the greeting should be sent
	//greeting says hello from server, hello from client. 
	//server then displays the connected midi devices on the server side
	//client response should be the port number they wish to listen to
	//server and client then exchange midi information and responses.
	int sendGreeting();
	int sendMidiPortInformation();
	int configureMidiPort();
	int readMidiInput();//read from bound port
	static void convertMidiInput(double deltatime, std::vector< unsigned char > *message, void *userData);//send to client (callback)
	void sendMidiInput(string &message); //called by convert
	
	void sendSuccess();
	
public:
	MidiServer();
	MidiServer(int portNum);
	void startServer();
	~MidiServer();
};