midi_controller.hpp

#pragma once
#include "RtMidi.h"
#include "sampler.cpp"

class MidiController {
public:
  RtMidiIn *midiIn = 0;
  RtMidiOut *midiOut = 0;

  std::vector<std::string> portNames;

  static void callback(double deltatime, std::vector<unsigned char> *message,
                       void *userData) {
    int key = (int)message->at(1);
    std::cout << key << " - ";
    int value = (int)message->at(0);
    std::cout << value << std::endl;

    callback_data_s *data = static_cast<callback_data_s *>(userData);
    if (value == 144) {
      auto it = std::find_if(data->voices.begin(), data->voices.end(),
                             [&](const std::shared_ptr<Sampler> s) {
                               return !s->running && !s->stopping;
                             });
      if (it != data->voices.end()) {
        auto s = *it;
        if (s != nullptr) {
          s->index = 0;
          s->current_note = key;
          s->running = true;
        }
      }
    }
    if (value == 128) {
      auto it = std::find_if(data->voices.begin(), data->voices.end(),
                             [&, key](const std::shared_ptr<Sampler> s) {
                               return s->running && !s->stopping &&
                                      s->current_note == key;
                             });
      if (it != data->voices.end()) {
        auto s = *it;
        if (s != nullptr) {
          // s->index = 0;
          s->running = false;
          s->stopping = true;
        }
      }
    }
    // int value = (int)message->at(2);
    // std::cout << "Recieving [176, " << key << ", " << value <<"]" <<
    // std::endl; Store *store = static_cast<Store *>(userData);
    // store->update(key, value);
  }

  MidiController() {
    try {
      midiIn = new RtMidiIn();
    } catch (RtMidiError &error) {
      std::cout << "Couldn't initialize RtMidiIn: " << std::endl;
      error.printMessage();
    }

    unsigned int nPorts = midiIn->getPortCount();
    std::cout << "\nThere are " << nPorts << " MIDI input sources available.\n";

    std::string portName;

    for (int i = 0; i < nPorts; i++) {
      try {
        portName = midiIn->getPortName(i);
      } catch (RtMidiError &error) {
        error.printMessage();
      }
      std::cout << "  Input Port #" << i + 1 << ": " << portName << '\n';
    }

    try {
      midiOut = new RtMidiOut();
    } catch (RtMidiError &error) {
      error.printMessage();
    }

    nPorts = midiOut->getPortCount();
    std::cout << "\nThere are " << nPorts << " MIDI output ports available.\n";
    for (unsigned int i = 0; i < nPorts; i++) {
      try {
        portName = midiOut->getPortName(i);
        portNames.push_back(portName);
      } catch (RtMidiError &error) {
        error.printMessage();
      }
      std::cout << "  Output Port #" << i + 1 << ": " << portName << '\n';
    }
    std::cout << '\n';
  }

  ~MidiController() {
    delete midiIn;
    delete midiOut;
  }
};