StatusLED.h


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#pragma once

#include <vector>
#include <filesystem>

struct LED
{
  // the root to the whole LED interface, e.g. "/sys/class/leds/ACT"
  std::filesystem::path green;
  std::filesystem::path red;
};

class StatusLED
{
public:
  enum class Mode
  {
    OK,     // green
    OKBeat, // green with heartbeat
    Error,  // red
  };

  StatusLED();

  void add(const LED& led);

  void setMode(Mode mode);
  void setBPM(int bpm);

private:
  bool init(const LED& led);
  void update(const LED& led);

  std::vector<LED> m_leds; // on best effort base, those will all show the same status
  Mode m_mode;
  int m_bpm;
};