trigger.cpp

// Copyright (c) 2025 Yasushi
// Licensed under the MIT License. See LICENSE for details.

#include "trigger.h"

Trigger::Trigger(const TriggerConfig& cfg) : config_(cfg) {}

void Trigger::begin() {
  if (config_.type == TriggerType::Gpio) {
    pinMode(config_.pin, config_.pinMode);
    prevLevel_ = (config_.activeLevel == HIGH) ? LOW : HIGH;  // 非押下を初期値に
  }
}

bool Trigger::pressed() {
  bool pressed = false;
  if (config_.type == TriggerType::Touch) {
    switch (config_.touch) {
      case TouchButtonId::A:
        pressed = M5.BtnA.wasPressed();
        break;
      case TouchButtonId::B:
        pressed = M5.BtnB.wasPressed();
        break;
      case TouchButtonId::C:
      default:
        pressed = M5.BtnC.wasPressed();
        break;
    }
  } else {
    int level = digitalRead(config_.pin);
    pressed = (prevLevel_ != config_.activeLevel) && (level == config_.activeLevel);
    prevLevel_ = level;
  }

  if (pressed) {
    prevPressMillis_ = lastPressMillis_;
    lastPressMillis_ = millis();
  }
  return pressed;
}

bool Trigger::isDoubleTap(uint32_t windowMs) const {
  if (lastPressMillis_ == 0 || prevPressMillis_ == 0) return false;
  return (lastPressMillis_ - prevPressMillis_) <= windowMs;
}