#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/event_groups.h"
#include "esp_system.h"
#include "esp_log.h"
#include "nvs_flash.h"
#include "esp_bt.h"
#include "driver/timer.h"
#include "cJSON.h"
#include "cJSON_Utils.h"

#include "esp_gap_ble_api.h"
#include "esp_gatts_api.h"
#include "esp_bt_defs.h"
#include "esp_bt_main.h"
#include "esp_gatt_common_api.h"

#include "sdkconfig.h"

#define GATTS_TAG "GATTS_DEMO"

#define GATTS_SERVICE_UUID_TEST_A 0x00FF
#define GATTS_CHAR_UUID_TEST_A 0xFF01
#define GATTS_DESCR_UUID_TEST_A 0x3333
#define GATTS_NUM_HANDLE_TEST_A 4

#define GATTS_SERVICE_UUID_TEST_B 0x00EE
#define GATTS_CHAR_UUID_TEST_B 0xEE01
#define GATTS_DESCR_UUID_TEST_B 0x2222
#define GATTS_NUM_HANDLE_TEST_B 4

#define TEST_DEVICE_NAME "ESP_GATTS_DEMO"
#define TEST_MANUFACTURER_DATA_LEN 17

#define GATTS_DEMO_CHAR_VAL_LEN_MAX 0x40

#define PREPARE_BUF_MAX_SIZE 1024

#define adv_config_flag (1 << 0)
#define scan_rsp_config_flag (1 << 1)

#define PROFILE_NUM 2
#define PROFILE_A_APP_ID 0
#define PROFILE_B_APP_ID 1

struct gatts_profile_inst
{
    esp_gatts_cb_t gatts_cb;
    uint16_t gatts_if;
    uint16_t app_id;
    uint16_t conn_id;
    uint16_t service_handle;
    esp_gatt_srvc_id_t service_id;
    uint16_t char_handle;
    esp_bt_uuid_t char_uuid;
    esp_gatt_perm_t perm;
    esp_gatt_char_prop_t property;
    uint16_t descr_handle;
    esp_bt_uuid_t descr_uuid;
};

typedef struct
{
    uint8_t *prepare_buf;
    int prepare_len;
} prepare_type_env_t;

typedef struct ble_gatts_str
{
    uint8_t send_gatts_if;
    uint16_t send_conn_id;
    uint16_t attr_handle;
} ble_gatts_str_t;

void example_write_event_env(esp_gatt_if_t gatts_if, prepare_type_env_t *prepare_write_env, esp_ble_gatts_cb_param_t *param);
void example_exec_write_event_env(prepare_type_env_t *prepare_write_env, esp_ble_gatts_cb_param_t *param);

void esp_ble_gatts_init(ble_gatts_str_t* ble_gatts_a_str);
void gatts_profile_a_constructor(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param);