#pragma once

#include "esphome/core/component.h"
#include "esphome/components/binary_sensor/binary_sensor.h"

#ifdef ARDUINO_ARCH_ESP32

namespace esphome {
namespace esp32_touch {

class ESP32TouchBinarySensor;

class ESP32TouchComponent : public Component {
 public:
  void register_touch_pad(ESP32TouchBinarySensor *pad);

  void set_setup_mode(bool setup_mode);

  void set_iir_filter(uint32_t iir_filter);

  void set_sleep_duration(uint16_t sleep_duration);

  void set_measurement_duration(uint16_t meas_cycle);

  void set_low_voltage_reference(touch_low_volt_t low_voltage_reference);

  void set_high_voltage_reference(touch_high_volt_t high_voltage_reference);

  void set_voltage_attenuation(touch_volt_atten_t voltage_attenuation);

  void setup() override;
  void dump_config() override;
  void loop() override;
  float get_setup_priority() const override;

  void on_shutdown() override;

 protected:
  /// Is the IIR filter enabled?
  bool iir_filter_enabled_() const;

  uint16_t sleep_cycle_{};
  uint16_t meas_cycle_{65535};
  touch_low_volt_t low_voltage_reference_{};
  touch_high_volt_t high_voltage_reference_{};
  touch_volt_atten_t voltage_attenuation_{};
  std::vector<ESP32TouchBinarySensor *> children_;
  bool setup_mode_{false};
  uint32_t iir_filter_{0};
};

/// Simple helper class to expose a touch pad value as a binary sensor.
class ESP32TouchBinarySensor : public binary_sensor::BinarySensor {
 public:
  ESP32TouchBinarySensor(const std::string &name, touch_pad_t touch_pad, uint16_t threshold);

  touch_pad_t get_touch_pad() const;
  uint16_t get_threshold() const;

 protected:
  friend ESP32TouchComponent;

  touch_pad_t touch_pad_;
  uint16_t threshold_;
};

}  // namespace esp32_touch
}  // namespace esphome

#endif