mtsespwrapper.hxx

#pragma once

#include "libMTSClient.h"
#include <cmath>

namespace mtsesp_wrapper
{
class MIDIKeyTuner
{
  public:
    MIDIKeyTuner() { client = MTS_RegisterClient(); }

    ~MIDIKeyTuner()
    {
        if (client)
            MTS_DeregisterClient(client);
    }

    bool MTS_ESP_available() const noexcept { return client != nullptr; }
    double noteToFrequency(char note, char channel = -1)
    {
        if (client && mtsEnabled)
            return MTS_NoteToFrequency(client, note, channel);
        return fallbackReferenceFrequency * std::pow(2.0, (note - 69) * (1.0 / 12.0));
    }
    void setMTSESP_Enabled(bool b) { mtsEnabled = b; }
    void setFallbackA4Frequency(double hz) { fallbackReferenceFrequency = hz; }
    // for access to the raw API if needed, obviously check for nullptr before using the result
    MTSClient *getClient() { return client; }

    // no copies or moves
    MIDIKeyTuner(const MIDIKeyTuner &) = delete;
    MIDIKeyTuner(MIDIKeyTuner &&) = delete;
    MIDIKeyTuner &operator=(MIDIKeyTuner &other) = delete;
    MIDIKeyTuner operator=(MIDIKeyTuner &&other) = delete;

  private:
    MTSClient *client = nullptr;
    double fallbackReferenceFrequency = 440.0;
    bool mtsEnabled = true;
};
} // namespace mtsesp_wrapper