firmware/src/input/TrackballInterruptBase.h

#pragma once

#include "InputBroker.h"
#include "mesh/NodeDB.h"

#ifndef TB_DIRECTION
#if ARCH_PORTDUINO
#include "PortduinoGlue.h"
#define TB_DIRECTION (PinStatus) portduino_config.lora_usb_vid
#else
#define TB_DIRECTION RISING
#endif
#endif

class TrackballInterruptBase : public Observable<const InputEvent *>, public concurrency::OSThread {
public:
  explicit TrackballInterruptBase(const char *name);
  void init(uint8_t pinDown, uint8_t pinUp, uint8_t pinLeft, uint8_t pinRight, uint8_t pinPress, input_broker_event eventDown,
            input_broker_event eventUp, input_broker_event eventLeft, input_broker_event eventRight, input_broker_event eventPressed,
            input_broker_event eventPressedLong, void (*onIntDown)(), void (*onIntUp)(), void (*onIntLeft)(), void (*onIntRight)(),
            void (*onIntPress)());
  void intPressHandler();
  void intDownHandler();
  void intUpHandler();
  void intLeftHandler();
  void intRightHandler();
  uint32_t lastTime = 0;

  virtual int32_t runOnce() override;

protected:
  enum TrackballInterruptBaseActionType {
    TB_ACTION_NONE,
    TB_ACTION_PRESSED,
    TB_ACTION_PRESSED_LONG,
    TB_ACTION_UP,
    TB_ACTION_DOWN,
    TB_ACTION_LEFT,
    TB_ACTION_RIGHT
  };
  uint8_t _pinDown = 0;
  uint8_t _pinUp = 0;
  uint8_t _pinLeft = 0;
  uint8_t _pinRight = 0;
  uint8_t _pinPress = 0;

  volatile TrackballInterruptBaseActionType action = TB_ACTION_NONE;

  // Long press detection for press button
  uint32_t pressStartTime = 0;
  uint32_t directionStartTime = 0;
  uint8_t directionInterval = 0;
  bool pressDetected = false;
  bool directionDetected = false;
  uint32_t lastLongPressEventTime = 0;
  uint32_t lastDirectionPressEventTime = 0;
  static const uint32_t LONG_PRESS_DURATION = 500;        // ms
  static const uint32_t LONG_PRESS_REPEAT_INTERVAL = 300; // ms - interval between repeated long press events

private:
  input_broker_event _eventDown = INPUT_BROKER_NONE;
  input_broker_event _eventUp = INPUT_BROKER_NONE;
  input_broker_event _eventLeft = INPUT_BROKER_NONE;
  input_broker_event _eventRight = INPUT_BROKER_NONE;
  input_broker_event _eventPressed = INPUT_BROKER_NONE;
  input_broker_event _eventPressedLong = INPUT_BROKER_NONE;
  const char *_originName;
  TrackballInterruptBaseActionType lastEvent = TB_ACTION_NONE;
};