#pragma once
#ifndef DSY_PHASOR_H
#define DSY_PHASOR_H
#ifdef __cplusplus

namespace daisysp
{
/** Generates a normalized signal moving from 0-1 at the specified frequency.

\todo Selecting which channels should be initialized/included in the sequence conversion.
\todo Setup a similar start function for an external mux, but that seems outside the scope of this file.

*/
class Phasor
{
  public:
    Phasor() {}
    ~Phasor() {}
    /** Initializes the Phasor module
    sample rate, and freq are in Hz
    initial phase is in radians
    Additional Init functions have defaults when arg is not specified:
    - phs = 0.0f
    - freq = 1.0f
    */
    inline void Init(float sample_rate, float freq, float initial_phase)
    {
        sample_rate_ = sample_rate;
        phs_         = initial_phase;
        SetFreq(freq);
    }

    /** Initialize phasor with samplerate and freq
    */
    inline void Init(float sample_rate, float freq)
    {
        Init(sample_rate, freq, 0.0f);
    }

    /** Initialize phasor with samplerate
    */
    inline void Init(float sample_rate) { Init(sample_rate, 1.0f, 0.0f); }
    /** processes Phasor and returns current value
    */
    float Process();


    /** Sets frequency of the Phasor in Hz
    */
    void SetFreq(float freq);


    /** Returns current frequency value in Hz
    */
    inline float GetFreq() { return freq_; }

  private:
    float freq_;
    float sample_rate_, inc_, phs_;
};
} // namespace daisysp
#endif
#endif