#include "instr_fm.hh"
#include "daisysp.h"

using namespace daisysp;


namespace Heck {
    namespace Instrument {

        void FM::init(float samplerate)
        {
            osc.Init(samplerate);
            osc.SetFrequency(100);
            osc.SetRatio(0.);
            osc.SetIndex(0.);

            volEnv.Init(samplerate);
            volEnv.SetTime(ADENV_SEG_ATTACK, .0001);
            volEnv.SetTime(ADENV_SEG_DECAY, 1.);
            volEnv.SetMax(1);
            volEnv.SetMin(0);

        }

        void FM::trigger()
        {
            volEnv.Trigger();
            return;
        }

        void FM::ctl(unsigned int ctl_nr, float val)
        {
            switch (ctl_nr) {
                case 0:
                    osc.SetFrequency(val * 200.);
                    break;
                case 1:
                    volEnv.SetTime(ADENV_SEG_DECAY, val * 2.);
                    break;
                case 2:
                    osc.SetRatio(val * 1.);
                    break;
                case 3:
                    osc.SetIndex(val * 1.);
                    break;
                case 4:
                    break;
                case 5:
                    break;
            }
        }

        void FM::switch_mode(unsigned int pos) {}
        void FM::switch_variation(unsigned int pos) {}
        void FM::switch_filter(unsigned int pos) {}

        float FM::nextsample()
        {
            float sig{};
            sig = osc.Process();
            float volEnv_sig = volEnv.Process();
            sig *= volEnv_sig;
            return sig;
        }

    } // namespace Instrument
} // namespace Heck