#pragma once
#include "Receiver.h"

enum class MeasureState : uint8_t { IDLE, SETTLING, RUNNING, PASS, FAIL };

class Measurement {
 public:
  explicit Measurement(PulseReceiver &receiver) : receiver_(receiver) {}
  bool start(float expectedHz, float expectedDuty, float tolerancePct,
             uint32_t testTimeMs, uint8_t repeats, uint8_t settleCycles);
  MeasureState update();
  void abort();
  MeasureState state() const { return state_; }
  FailReason reason() const { return stats_.reason; }
  const StageStats &stats() const { return stats_; }
 private:
  void fail(FailReason reason);
  PulseReceiver &receiver_;
  MeasureState state_ = MeasureState::IDLE;
  StageStats stats_ = {};
  float expectedHz_ = 0, expectedDuty_ = 0, tolerance_ = 0;
  uint32_t timeMs_ = 0;
  uint8_t repeats_ = 0, settleLeft_ = 0;
  uint64_t measurementStartTick_ = 0, deadlineTick_ = 0, repeatTicks_ = 0;
  uint32_t startedMs_ = 0, measurementStartMs_ = 0, lastPeriodMs_ = 0;
  uint32_t repeatPeriods_[10] = {};
};