/*
 * ESPRESSIF MIT License
 *
 * Copyright (c) 2018 <ESPRESSIF SYSTEMS (SHANGHAI) PTE LTD>
 *
 * Permission is hereby granted for use on all ESPRESSIF SYSTEMS products, in
 * which case, it is free of charge, to any person obtaining a copy of this
 * software and associated documentation files (the "Software"), to deal in the
 * Software without restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do
 * so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 */

#ifndef _PERIPH_ADC_BUTTON_H_
#define _PERIPH_ADC_BUTTON_H_

#include "adc_button.h"
#include "driver/adc.h"
#include "esp_peripherals.h"

#ifdef __cplusplus
extern "C" {
#endif

#define ADC_BUTTON_STACK_SIZE 2500
#define ADC_BUTTON_TASK_PRIORITY 10
#define ADC_BUTTON_TASK_CORE_ID 0

/**
 * @brief      The configuration of ADC Button
 */
typedef struct {
  adc_arr_t *arr;              /*!< An array with configuration of buttons */
  int arr_size;                /*!< The array size */
  adc_btn_task_cfg_t task_cfg; /*!< Adc button task configuration */
} periph_adc_button_cfg_t;

#define PERIPH_ADC_BUTTON_DEFAULT_CONFIG()   \
  {                                          \
    .task_cfg = {                            \
      .task_stack = ADC_BUTTON_STACK_SIZE,   \
      .task_core = ADC_BUTTON_TASK_CORE_ID,  \
      .task_prio = ADC_BUTTON_TASK_PRIORITY, \
      .ext_stack = false                     \
    }                                        \
  }

typedef enum {
  PERIPH_ADC_BUTTON_IDLE = 0,
  PERIPH_ADC_BUTTON_PRESSED,
  PERIPH_ADC_BUTTON_RELEASE,
  PERIPH_ADC_BUTTON_LONG_PRESSED,
  PERIPH_ADC_BUTTON_LONG_RELEASE,
} periph_adc_button_event_id_t;

/**
 * ESP32 ADC1 channels and GPIO table
 *   ADC1_CHANNEL_0 -  GPIO36
 *   ADC1_CHANNEL_1 -  GPIO37
 *   ADC1_CHANNEL_2 -  GPIO38
 *   ADC1_CHANNEL_3 -  GPIO39
 *   ADC1_CHANNEL_4 -  GPIO32
 *   ADC1_CHANNEL_5 -  GPIO33
 *   ADC1_CHANNEL_6 -  GPIO34
 *   ADC1_CHANNEL_7 -  GPIO35
 *
 **/

#define ADC_DEFAULT_ARR()                                               \
  {                                                                     \
    .adc_ch = ADC1_CHANNEL_3, .adc_level_step = NULL, .total_steps = 6, \
    .press_judge_time = 3000,                                           \
  }

/**
 * @brief      Create the button peripheral handle for esp_peripherals.
 *
 * @note       The handle created by this function is automatically destroyed
 * when esp_periph_destroy is called.
 *
 * @param      btn_cfg  The button configuration.
 *
 * @return     The esp peripheral handle.
 */
esp_periph_handle_t periph_adc_button_init(periph_adc_button_cfg_t *btn_cfg);

#ifdef __cplusplus
}
#endif

#endif