#pragma once

#include <stdio.h>
#include <inttypes.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_system.h"

class TouchHandler {
public:
  TouchHandler(QueueHandle_t touch_queue);
  // the system_event_group is used to set touch-calibrated bit
  virtual void init(EventGroupHandle_t system_event_group) = 0;
  virtual void start_event_loop() = 0;
  virtual ~TouchHandler() = 0;
private:
  TouchHandler(const TouchHandler&) = delete;
  TouchHandler& operator=(const TouchHandler&) = delete;
};

class EInkTouchHandler : public TouchHandler {
public:
  EInkTouchHandler(QueueHandle_t touch_queue);
  void init(EventGroupHandle_t system_event_group) override;
  void start_event_loop() override;
  ~EInkTouchHandler() override;

private:
  // Task adapter used for FreeRTOS task creation. Forwards to
  // `run_event_loop()` using the `this` pointer passed as the task param.
  static void task_adapter(void* arg);

  // Instance method implementing the touch event loop.
  void run_event_loop();
  // prevent copying
  EInkTouchHandler(const EInkTouchHandler&) = delete;
  EInkTouchHandler& operator=(const EInkTouchHandler&) = delete;
};