/*
 * SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD
 *
 * SPDX-License-Identifier: Unlicense OR CC0-1.0
 */

/****************************************************************************
*
* This demo showcases creating a GATT database using a predefined attribute table.
* It acts as a GATT server and can send adv data, be connected by client.
* Run the gatt_client demo, the client demo will automatically connect to the gatt_server_service_table demo.
* Client demo will enable GATT server's notify after connection. The two devices will then exchange
* data.
*
****************************************************************************/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.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 "esp_gap_ble_api.h"
#include "esp_gatts_api.h"
#include "esp_bt_main.h"
#include "gatts_table_creat_demo.h"
#include "esp_gatt_common_api.h"

#include "esp_mac.h"

#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_system.h"
#include "esp_log.h"
#include "driver/uart.h"
#include "string.h"
#include "driver/gpio.h"
#include "Protocol_CRC16.h"
#include "Protocol_Lib.h"
#include "Protocol_User.h"
#include "app_Ble_User.h"
#include "MCU_Core_Protocol.h"

typedef   unsigned char   uint8_t;

unsigned int flag_u;

static const int RX_BUF_SIZE = 1024;

#define TXD_PIN (GPIO_NUM_22)
#define RXD_PIN (GPIO_NUM_26)

typedef struct
{
    uint16_t Rxlen;
    uint8_t Rxbuff[255];
} _QJ_UART_Ctrl;

_QJ_UART_Ctrl QJ_UARTRX;

void init_Uart(void) {
    const uart_config_t uart_config = {
        .baud_rate = 115200,
        .data_bits = UART_DATA_8_BITS,
        .parity = UART_PARITY_DISABLE,
        .stop_bits = UART_STOP_BITS_1,
        .flow_ctrl = UART_HW_FLOWCTRL_DISABLE,
        .source_clk = UART_SCLK_DEFAULT,
    };
    // We won't use a buffer for sending data.
    uart_driver_install(UART_NUM_1, RX_BUF_SIZE * 2, 200, 0, NULL, 0);
    uart_param_config(UART_NUM_1, &uart_config);
    uart_set_pin(UART_NUM_1, TXD_PIN, RXD_PIN, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE);
}

int bsp_Uart_Send_Data(uint8_t * data , unsigned int len)
{
    int txBytes = uart_write_bytes(UART_NUM_1, data, len);
    uart_wait_tx_idle_polling(UART_NUM_1);
    return txBytes;
}



static void Uart_Rx_Task(void *arg)
{
    uint8_t* data = (uint8_t*) malloc(RX_BUF_SIZE+1);
    while (1) 
    {
        const int rxBytes = uart_read_bytes(UART_NUM_1, data, RX_BUF_SIZE, 20);
        if (rxBytes < 1000)
        {
            for (uint16_t i = 0; i < rxBytes; i++)
            {
                UART_Put(data[i]);
            }
        }

        if(Wifi_OTA_Request != 0)
        {
            break;
        }
    }
    ESP_LOGW("ota", "vtask del uart rx");
    free(data);
    vTaskDelete(NULL);
}

void bsp_Uart_Init(void )
{
    init_Uart();
    Protocol_KL30_Wakeup_Init();
    xTaskCreatePinnedToCore(Uart_Rx_Task, "Ble_User", 4096, NULL, 4, NULL, 1);
}

int gatts_App_Ble_DeInit(void)
{
    esp_err_t err;
    err = esp_bluedroid_disable();
    if (err != ESP_OK) {
        return ESP_FAIL;
    }
    err = esp_bluedroid_deinit();
    if (err != ESP_OK) {
        return err;
    }
    err = esp_bt_controller_disable();
    if (err != ESP_OK) {
        return ESP_FAIL;
    }

    /* The API `esp_bt_controller_deinit` will have to be removed when we add support for
     * `reset to provisioning`
     */
    err = esp_bt_controller_deinit();
    if (err != ESP_OK) {
        return ESP_FAIL;
    }

    return ESP_OK;
}









uint8_t BT_Device_Name[14] = "QJViva";

#define GATTS_TABLE_TAG "GATTS_TABLE_DEMO"

#define PROFILE_NUM                 1

#define PROFILE_APP_IDX             0

#define ESP_APP_ID                  0x55
#define SAMPLE_DEVICE_NAME          "QJ-Viva"
#define SVC_INST_ID                 0
#define SVC_INST_ID1                 1


 esp_bd_addr_t rand_addr = {0xC0, 0x30, 0x05, 0x70, 0x09, 0xFA};

/* The max length of characteristic value. When the GATT client performs a write or prepare write operation,
*  the data length must be less than GATTS_DEMO_CHAR_VAL_LEN_MAX.
*/
#define GATTS_DEMO_CHAR_VAL_LEN_MAX 500
#define PREPARE_BUF_MAX_SIZE        1024
#define CHAR_DECLARATION_SIZE       (sizeof(uint8_t))

#define ADV_CONFIG_FLAG             (1 << 0)
#define SCAN_RSP_CONFIG_FLAG        (1 << 1)

static uint8_t adv_config_done       = 0;

uint16_t heart_rate_handle_table[HRS_IDX_NB];
uint16_t heart_rate_handle_table2[HRS_IDX_NB2];

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

static prepare_type_env_t prepare_write_env;

#define CONFIG_SET_RAW_ADV_DATA
#ifdef CONFIG_SET_RAW_ADV_DATA
static uint8_t raw_adv_data[] = {
        0x02, 0x01, 0x02,
        0x03, 0x03, 0x69, 0x67,
        0x09, 0xff, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
        0x07, 0x09, 'Q', 'J', '-', 'V', 'i', 'v',   

        // 0x08, 0x16, 0x60, 0xb3, 0x00, 0x00, 0x00, 0x00, 0x00,
};
static uint8_t raw_scan_rsp_data[] = {
        /* flags */
        0x02, 0x01, 0x02,
        0x02, 0x0a, 0xeb,
        /* service uuid */
        0x03, 0x03, 0x69, 0x67,
};

#else
static uint8_t service_uuid[16] = {
    /* LSB <--------------------------------------------------------------------------------> MSB */
    //first uuid, 16bit, [12],[13] is the value
    0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80, 0x00, 0x10, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00,
};

/* The length of adv data must be less than 31 bytes */
static esp_ble_adv_data_t adv_data = {
    .set_scan_rsp        = false,
    .include_name        = true,
    .include_txpower     = true,
    .min_interval        = 0x0006, //slave connection min interval, Time = min_interval * 1.25 msec
    .max_interval        = 0x0010, //slave connection max interval, Time = max_interval * 1.25 msec
    .appearance          = 0x00,
    .manufacturer_len    = 0,    //TEST_MANUFACTURER_DATA_LEN,
    .p_manufacturer_data = NULL, //test_manufacturer,
    .service_data_len    = 0,
    .p_service_data      = NULL,
    .service_uuid_len    = sizeof(service_uuid),
    .p_service_uuid      = service_uuid,
    .flag = (ESP_BLE_ADV_FLAG_GEN_DISC | ESP_BLE_ADV_FLAG_BREDR_NOT_SPT),
};

// scan response data
static esp_ble_adv_data_t scan_rsp_data = {
    .set_scan_rsp        = true,
    .include_name        = true,
    .include_txpower     = true,
    .min_interval        = 0x0006,
    .max_interval        = 0x0010,
    .appearance          = 0x00,
    .manufacturer_len    = 0, //TEST_MANUFACTURER_DATA_LEN,
    .p_manufacturer_data = NULL, //&test_manufacturer[0],
    .service_data_len    = 0,
    .p_service_data      = NULL,
    .service_uuid_len    = sizeof(service_uuid),
    .p_service_uuid      = service_uuid,
    .flag = (ESP_BLE_ADV_FLAG_GEN_DISC | ESP_BLE_ADV_FLAG_BREDR_NOT_SPT),
};
#endif /* CONFIG_SET_RAW_ADV_DATA */

static esp_ble_adv_params_t adv_params = {
    .adv_int_min         = 0x20,
    .adv_int_max         = 0x40,
    .adv_type            = ADV_TYPE_IND,
    .own_addr_type       = BLE_ADDR_TYPE_PUBLIC,
    .channel_map         = ADV_CHNL_ALL,
    .adv_filter_policy   = ADV_FILTER_ALLOW_SCAN_ANY_CON_ANY,
};

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;
};

static void gatts_profile_event_handler(esp_gatts_cb_event_t event,
					esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param);

/* One gatt-based profile one app_id and one gatts_if, this array will store the gatts_if returned by ESP_GATTS_REG_EVT */
static struct gatts_profile_inst heart_rate_profile_tab[PROFILE_NUM] = {
    [PROFILE_APP_IDX] = {
        .gatts_cb = gatts_profile_event_handler,
        .gatts_if = ESP_GATT_IF_NONE,       /* Not get the gatt_if, so initial is ESP_GATT_IF_NONE */
    },
};

/* Service */
const uint16_t GATTS_SERVICE_UUID_TEST      = 0x00FF;
const uint16_t GATTS_CHAR_UUID_TEST_A       = 0xFF01;
const uint16_t GATTS_CHAR_UUID_TEST_B       = 0xFF02;
const uint16_t GATTS_CHAR_UUID_TEST_C       = 0xFF03;

const uint16_t device_info_service_uuid = ESP_GATT_UUID_DEVICE_INFO_SVC;

const uint16_t primary_service_uuid         = ESP_GATT_UUID_PRI_SERVICE;
const uint16_t character_declaration_uuid   = ESP_GATT_UUID_CHAR_DECLARE;
const uint16_t character_client_config_uuid = ESP_GATT_UUID_CHAR_CLIENT_CONFIG;
const uint8_t char_prop_read                =  ESP_GATT_CHAR_PROP_BIT_READ;
const uint8_t char_prop_write               = ESP_GATT_CHAR_PROP_BIT_WRITE;
const uint8_t char_prop_read_write_notify   = 
ESP_GATT_CHAR_PROP_BIT_WRITE | ESP_GATT_CHAR_PROP_BIT_READ | ESP_GATT_CHAR_PROP_BIT_NOTIFY;
const uint8_t heart_measurement_ccc[2]      = {0X00, 0X00};
 uint8_t char_value[12]                 = {'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L' };


const uint16_t Dev_Svc_2A29_Str = 0x2A29;
const uint16_t Dev_Svc_2A24_Str = 0x2A24;
const uint16_t Dev_Svc_2A25_Str = 0x2A25;
const uint16_t Dev_Svc_2A27_Str = 0x2A27;
const uint16_t Dev_Svc_2A26_Str = 0x2A26;
const uint16_t Dev_Svc_2A28_Str = 0x2A28;
const uint16_t Dev_Svc_2A23_Str = 0x2A23;
const uint16_t Dev_Svc_2A2A_Str = 0x2A2A;
const uint16_t Dev_Svc_2A50_Str = 0x2A50;


const uint8_t char_prop_write_writenr_notify                =  
ESP_GATT_CHAR_PROP_BIT_WRITE_NR|ESP_GATT_CHAR_PROP_BIT_WRITE|ESP_GATT_CHAR_PROP_BIT_NOTIFY;

static const uint8_t service_1_uuid[16] = 
{0Xbc, 0Xbc, 0Xc6, 0Xbf, 0Xb1, 0Xea, 0Xf0, 0Xbd, 0Xec, 0Xc7, 0Xd8, 0Xd6, 0X60, 0Xb3, 0X00, 0X00};
static const uint8_t char_1_uuid[16] = 
{0Xbc, 0Xbc, 0Xc6, 0Xbf, 0Xb1, 0Xea, 0Xf0, 0Xbd, 0Xec, 0Xc7, 0Xd8, 0Xd6, 0X62, 0Xb3, 0X00, 0X00};


/* Full Database Description - Used to add attributes into the database */
static const esp_gatts_attr_db_t gatt_db[HRS_IDX_NB] =
{
    // Service Declaration
    [IDX_SVC]        =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&primary_service_uuid, ESP_GATT_PERM_READ,
      sizeof(uint16_t), sizeof(device_info_service_uuid), (uint8_t *)&device_info_service_uuid}},


    /* Characteristic Declaration */
    [IDX_CHAR_2A29]     =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ,
      CHAR_DECLARATION_SIZE, CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_read      }},

    /* Characteristic Value */
    [IDX_CHAR_VAL_2A29] =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&Dev_Svc_2A29_Str, ESP_GATT_PERM_READ ,
      GATTS_DEMO_CHAR_VAL_LEN_MAX, 0, (uint8_t *)((void *)0)}},

    /* Client Characteristic Configuration Descriptor */
    [IDX_CHAR_CFG_2A29]  =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_client_config_uuid, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
      sizeof(uint16_t), sizeof(heart_measurement_ccc), (uint8_t *)heart_measurement_ccc}},


    /* Characteristic Declaration */
    [IDX_CHAR_2A24]     =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ,
      CHAR_DECLARATION_SIZE, CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_read      }},

    /* Characteristic Value */
    [IDX_CHAR_VAL_2A24] =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&Dev_Svc_2A24_Str, ESP_GATT_PERM_READ ,
      GATTS_DEMO_CHAR_VAL_LEN_MAX, 0, (uint8_t *)((void *)0)}},

    /* Client Characteristic Configuration Descriptor */
    [IDX_CHAR_CFG_2A24]  =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_client_config_uuid, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
      sizeof(uint16_t), sizeof(heart_measurement_ccc), (uint8_t *)heart_measurement_ccc}},



    /* Characteristic Declaration */
    [IDX_CHAR_2A25]     =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ,
      CHAR_DECLARATION_SIZE, CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_read      }},

    /* Characteristic Value */
    [IDX_CHAR_VAL_2A25] =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&Dev_Svc_2A25_Str, ESP_GATT_PERM_READ ,
      GATTS_DEMO_CHAR_VAL_LEN_MAX, sizeof(char_value), (uint8_t *)char_value}},

    /* Client Characteristic Configuration Descriptor */
    [IDX_CHAR_CFG_2A25]  =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_client_config_uuid, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
      sizeof(uint16_t), sizeof(heart_measurement_ccc), (uint8_t *)heart_measurement_ccc}},


    /* Characteristic Declaration */
    [IDX_CHAR_2A27]     =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ,
      CHAR_DECLARATION_SIZE, CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_read      }},

    /* Characteristic Value */
    [IDX_CHAR_VAL_2A27] =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&Dev_Svc_2A27_Str, ESP_GATT_PERM_READ ,
      GATTS_DEMO_CHAR_VAL_LEN_MAX, 0, (uint8_t *)((void *)0)}},

    /* Client Characteristic Configuration Descriptor */
    [IDX_CHAR_CFG_2A27]  =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_client_config_uuid, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
      sizeof(uint16_t), sizeof(heart_measurement_ccc), (uint8_t *)heart_measurement_ccc}},
    

    /* Characteristic Declaration */
    [IDX_CHAR_2A26]     =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ,
      CHAR_DECLARATION_SIZE, CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_read      }},

    /* Characteristic Value */
    [IDX_CHAR_VAL_2A26] =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&Dev_Svc_2A26_Str, ESP_GATT_PERM_READ ,
      GATTS_DEMO_CHAR_VAL_LEN_MAX, 0, (uint8_t *)((void *)0)}},

    /* Client Characteristic Configuration Descriptor */
    [IDX_CHAR_CFG_2A26]  =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_client_config_uuid, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
      sizeof(uint16_t), sizeof(heart_measurement_ccc), (uint8_t *)heart_measurement_ccc}},



    [IDX_CHAR_2A28]     =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ,
      CHAR_DECLARATION_SIZE, CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_read      }},

    /* Characteristic Value */
    [IDX_CHAR_VAL_2A28] =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&Dev_Svc_2A28_Str, ESP_GATT_PERM_READ ,
      GATTS_DEMO_CHAR_VAL_LEN_MAX, 0, (uint8_t *)((void *)0)}},

    /* Client Characteristic Configuration Descriptor */
    [IDX_CHAR_CFG_2A28]  =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_client_config_uuid, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
      sizeof(uint16_t), sizeof(heart_measurement_ccc), (uint8_t *)heart_measurement_ccc}},


    [IDX_CHAR_2A23]     =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ,
      CHAR_DECLARATION_SIZE, CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_read      }},

    /* Characteristic Value */
    [IDX_CHAR_VAL_2A23] =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&Dev_Svc_2A23_Str, ESP_GATT_PERM_READ ,
      GATTS_DEMO_CHAR_VAL_LEN_MAX, 0, (uint8_t *)((void *)0)}},

    /* Client Characteristic Configuration Descriptor */
    [IDX_CHAR_CFG_2A23]  =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_client_config_uuid, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
      sizeof(uint16_t), sizeof(heart_measurement_ccc), (uint8_t *)heart_measurement_ccc}},



    [IDX_CHAR_2A2A]     =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ,
      CHAR_DECLARATION_SIZE, CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_read      }},

    /* Characteristic Value */
    [IDX_CHAR_VAL_2A2A] =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&Dev_Svc_2A2A_Str, ESP_GATT_PERM_READ ,
      GATTS_DEMO_CHAR_VAL_LEN_MAX, 0, (uint8_t *)((void *)0)}},

    /* Client Characteristic Configuration Descriptor */
    [IDX_CHAR_CFG_2A2A]  =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_client_config_uuid, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
      sizeof(uint16_t), sizeof(heart_measurement_ccc), (uint8_t *)heart_measurement_ccc}},


    [IDX_CHAR_2A50]     =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ,
      CHAR_DECLARATION_SIZE, CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_read      }},

    /* Characteristic Value */
    [IDX_CHAR_VAL_2A50] =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&Dev_Svc_2A50_Str, ESP_GATT_PERM_READ ,
      GATTS_DEMO_CHAR_VAL_LEN_MAX, 0, (uint8_t *)((void *)0)}},

    /* Client Characteristic Configuration Descriptor */
    [IDX_CHAR_CFG_2A50]  =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_client_config_uuid, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
      sizeof(uint16_t), sizeof(heart_measurement_ccc), (uint8_t *)heart_measurement_ccc}},
};


/* Full Database Description - Used to add attributes into the database */
static const esp_gatts_attr_db_t gatt_db2[HRS_IDX_NB2] =
{
    // Service Declaration
    [IDX_SVC2]        =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&primary_service_uuid, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
      sizeof(uint16_t), sizeof(service_1_uuid), (uint8_t *)&service_1_uuid}},

    /* Characteristic Declaration */
    [IDX_CHAR_A2]     =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
      CHAR_DECLARATION_SIZE, CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_write_writenr_notify      }},

    /* Characteristic Value */
    [IDX_CHAR_VAL_A2] =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_128, (uint8_t *)&char_1_uuid,  ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE ,
      GATTS_DEMO_CHAR_VAL_LEN_MAX, 0, (uint8_t *)((void *)0)}},

    /* Client Characteristic Configuration Descriptor */
    [IDX_CHAR_CFG_A2]  =
    {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_client_config_uuid, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
      sizeof(uint16_t), sizeof(heart_measurement_ccc), (uint8_t *)heart_measurement_ccc}},
};



int bsp_Ble_Gatts_Send_Indicate( uint8_t len, uint8_t *data)
{
    int err = ESP_FAIL;
    uint8_t retry = 5;

    if(Ble_User.Ble_Sts != Ble_Idle)
    {
        while(retry -- )
        {
            if(err != ESP_OK)
            {
                err = esp_ble_gatts_send_indicate(heart_rate_profile_tab[0].gatts_if, 
                                heart_rate_profile_tab[0].conn_id, 
                                heart_rate_handle_table2[IDX_CHAR_VAL_A2],
                                len, data, false);
            }
            else
            {
                break;
            }
        }

        if(err != ESP_OK)
        {
            ESP_LOGE("GATTS", "ble trans fail!!");
        }
    }

    return err;
}


static void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param)
{
    switch (event) {
    #ifdef CONFIG_SET_RAW_ADV_DATA
        case ESP_GAP_BLE_ADV_DATA_RAW_SET_COMPLETE_EVT:
            adv_config_done &= (~ADV_CONFIG_FLAG);
            if (adv_config_done == 0){
                esp_ble_gap_start_advertising(&adv_params);

                // printf("adv 1\r\n");
            }
            break;
        case ESP_GAP_BLE_SCAN_RSP_DATA_RAW_SET_COMPLETE_EVT:
            adv_config_done &= (~SCAN_RSP_CONFIG_FLAG);
            if (adv_config_done == 0){
                esp_ble_gap_start_advertising(&adv_params);

                // printf("adv 2\r\n");
            }
            break;
    #else
        case ESP_GAP_BLE_ADV_DATA_SET_COMPLETE_EVT:
            adv_config_done &= (~ADV_CONFIG_FLAG);
            if (adv_config_done == 0){
                esp_ble_gap_start_advertising(&adv_params);
            }
            break;
        case ESP_GAP_BLE_SCAN_RSP_DATA_SET_COMPLETE_EVT:
            adv_config_done &= (~SCAN_RSP_CONFIG_FLAG);
            if (adv_config_done == 0){
                esp_ble_gap_start_advertising(&adv_params);
            }
            break;
    #endif
        case ESP_GAP_BLE_ADV_START_COMPLETE_EVT:
            /* advertising start complete event to indicate advertising start successfully or failed */
            if (param->adv_start_cmpl.status != ESP_BT_STATUS_SUCCESS) {
                ESP_LOGE(GATTS_TABLE_TAG, "advertising start failed");
            }else{
                ESP_LOGI(GATTS_TABLE_TAG, "advertising start successfully");
            }
            break;
        case ESP_GAP_BLE_ADV_STOP_COMPLETE_EVT:
            if (param->adv_stop_cmpl.status != ESP_BT_STATUS_SUCCESS) {
                ESP_LOGE(GATTS_TABLE_TAG, "Advertising stop failed");
            }
            else {
                ESP_LOGI(GATTS_TABLE_TAG, "Stop adv successfully\n");
            }
            break;
        case ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT:
            ESP_LOGI(GATTS_TABLE_TAG, "update connection params status = %d, min_int = %d, max_int = %d,conn_int = %d,latency = %d, timeout = %d",
                  param->update_conn_params.status,
                  param->update_conn_params.min_int,
                  param->update_conn_params.max_int,
                  param->update_conn_params.conn_int,
                  param->update_conn_params.latency,
                  param->update_conn_params.timeout);
            break;
        default:
            break;
    }
}

void example_prepare_write_event_env(esp_gatt_if_t gatts_if, prepare_type_env_t *prepare_write_env, esp_ble_gatts_cb_param_t *param)
{
    ESP_LOGI(GATTS_TABLE_TAG, "prepare write, handle = %d, value len = %d", param->write.handle, param->write.len);
    esp_gatt_status_t status = ESP_GATT_OK;
    if (param->write.offset > PREPARE_BUF_MAX_SIZE) {
        status = ESP_GATT_INVALID_OFFSET;
    } else if ((param->write.offset + param->write.len) > PREPARE_BUF_MAX_SIZE) {
        status = ESP_GATT_INVALID_ATTR_LEN;
    }
    if (status == ESP_GATT_OK && prepare_write_env->prepare_buf == NULL) {
        prepare_write_env->prepare_buf = (uint8_t *)malloc(PREPARE_BUF_MAX_SIZE * sizeof(uint8_t));
        prepare_write_env->prepare_len = 0;
        if (prepare_write_env->prepare_buf == NULL) {
            ESP_LOGE(GATTS_TABLE_TAG, "%s, Gatt_server prep no mem", __func__);
            status = ESP_GATT_NO_RESOURCES;
        }
    }

    /*send response when param->write.need_rsp is true */
    if (param->write.need_rsp){
        esp_gatt_rsp_t *gatt_rsp = (esp_gatt_rsp_t *)malloc(sizeof(esp_gatt_rsp_t));
        if (gatt_rsp != NULL){
            gatt_rsp->attr_value.len = param->write.len;
            gatt_rsp->attr_value.handle = param->write.handle;
            gatt_rsp->attr_value.offset = param->write.offset;
            gatt_rsp->attr_value.auth_req = ESP_GATT_AUTH_REQ_NONE;
            memcpy(gatt_rsp->attr_value.value, param->write.value, param->write.len);
            esp_err_t response_err = esp_ble_gatts_send_response(gatts_if, param->write.conn_id, param->write.trans_id, status, gatt_rsp);
            if (response_err != ESP_OK) {
               ESP_LOGE(GATTS_TABLE_TAG, "Send response error");
            }
            free(gatt_rsp);
        }else{
            ESP_LOGE(GATTS_TABLE_TAG, "%s, malloc failed", __func__);
        }
    }
    if (status != ESP_GATT_OK){
        return;
    }
    memcpy(prepare_write_env->prepare_buf + param->write.offset,
           param->write.value,
           param->write.len);
    prepare_write_env->prepare_len += param->write.len;

}

void example_exec_write_event_env(prepare_type_env_t *prepare_write_env, esp_ble_gatts_cb_param_t *param){
    if (param->exec_write.exec_write_flag == ESP_GATT_PREP_WRITE_EXEC && prepare_write_env->prepare_buf){
        esp_log_buffer_hex(GATTS_TABLE_TAG, prepare_write_env->prepare_buf, prepare_write_env->prepare_len);
    }else{
        ESP_LOGI(GATTS_TABLE_TAG,"ESP_GATT_PREP_WRITE_CANCEL");
    }
    if (prepare_write_env->prepare_buf) {
        free(prepare_write_env->prepare_buf);
        prepare_write_env->prepare_buf = NULL;
    }
    prepare_write_env->prepare_len = 0;
}

bool create_tab1 = false;

static void gatts_profile_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param)
{
    switch (event) {
        case ESP_GATTS_REG_EVT:{
            // esp_ble_gap_set_rand_addr(rand_addr);
            esp_err_t set_dev_name_ret = esp_ble_gap_set_device_name((const char *)BT_Device_Name);
            if (set_dev_name_ret){
                ESP_LOGE(GATTS_TABLE_TAG, "set device name failed, error code = %x", set_dev_name_ret);
            }
    #ifdef CONFIG_SET_RAW_ADV_DATA
            esp_err_t raw_adv_ret = esp_ble_gap_config_adv_data_raw(raw_adv_data, sizeof(raw_adv_data));
            if (raw_adv_ret){
                ESP_LOGE(GATTS_TABLE_TAG, "config raw adv data failed, error code = %x ", raw_adv_ret);
            }
            adv_config_done |= ADV_CONFIG_FLAG;
            esp_err_t raw_scan_ret = esp_ble_gap_config_scan_rsp_data_raw(raw_scan_rsp_data, sizeof(raw_scan_rsp_data));
            if (raw_scan_ret){
                ESP_LOGE(GATTS_TABLE_TAG, "config raw scan rsp data failed, error code = %x", raw_scan_ret);
            }
            adv_config_done |= SCAN_RSP_CONFIG_FLAG;
    #else
            //config adv data
            esp_err_t ret = esp_ble_gap_config_adv_data(&adv_data);
            if (ret){
                ESP_LOGE(GATTS_TABLE_TAG, "config adv data failed, error code = %x", ret);
            }
            adv_config_done |= ADV_CONFIG_FLAG;
            //config scan response data
            ret = esp_ble_gap_config_adv_data(&scan_rsp_data);
            if (ret){
                ESP_LOGE(GATTS_TABLE_TAG, "config scan response data failed, error code = %x", ret);
            }
            adv_config_done |= SCAN_RSP_CONFIG_FLAG;
    #endif
            esp_err_t create_attr_ret = esp_ble_gatts_create_attr_tab(gatt_db, gatts_if, HRS_IDX_NB, SVC_INST_ID);
            if (create_attr_ret){
                ESP_LOGE(GATTS_TABLE_TAG, "create attr table failed, error code = %x", create_attr_ret);
            }

            ESP_LOGI(GATTS_TABLE_TAG,"create attr table!!!!!!!!!!!!!!!!!!!!");
        }
       	    break;
        case ESP_GATTS_READ_EVT:


            ESP_LOGI(GATTS_TABLE_TAG, "ESP_GATTS_READ_EVT");
       	    break;
        case ESP_GATTS_WRITE_EVT:
            if (!param->write.is_prep){
                // the data length of gattc write  must be less than GATTS_DEMO_CHAR_VAL_LEN_MAX.
                ESP_LOGI(GATTS_TABLE_TAG, "GATT_WRITE_EVT, handle = %d, value len = %d, value :", param->write.handle, param->write.len);
                esp_log_buffer_hex(GATTS_TABLE_TAG, param->write.value, param->write.len);

                // printf("descr_value = %d\r\n", heart_rate_handle_table[IDX_CHAR_CFG_A2]);
                // printf("handle = %d\r\n", param->write.handle);

                if (heart_rate_handle_table2[IDX_CHAR_VAL_A2] == param->write.handle)
                {
                    Get_Ble_Raw_Data(param->write.value, param->write.len);
                }

                if (heart_rate_handle_table2[IDX_CHAR_CFG_A2] == param->write.handle && param->write.len == 2){
                    uint16_t descr_value = param->write.value[1]<<8 | param->write.value[0];

                    

                    if (descr_value == 0x0001){
                        ESP_LOGI(GATTS_TABLE_TAG, "notify enable");
                        // uint8_t notify_data[15];
                        // for (int i = 0; i < sizeof(notify_data); ++i)
                        // {
                        //     notify_data[i] = i % 0xff;
                        // }
                        // //the size of notify_data[] need less than MTU size
                        // esp_ble_gatts_send_indicate(gatts_if, param->write.conn_id, heart_rate_handle_table2[IDX_CHAR_CFG_A2],
                        //                         sizeof(notify_data), notify_data, false);
                    }else if (descr_value == 0x0002){
                        // ESP_LOGI(GATTS_TABLE_TAG, "indicate enable");
                        // uint8_t indicate_data[15];
                        // for (int i = 0; i < sizeof(indicate_data); ++i)
                        // {
                        //     indicate_data[i] = i % 0xff;
                        // }

                        // // if want to change the value in server database, call:
                        // // esp_ble_gatts_set_attr_value(heart_rate_handle_table[IDX_CHAR_VAL_2A25], sizeof(indicate_data), indicate_data);


                        // //the size of indicate_data[] need less than MTU size
                        // esp_ble_gatts_send_indicate(gatts_if, param->write.conn_id, heart_rate_handle_table2[IDX_CHAR_CFG_A2],
                        //                     sizeof(indicate_data), indicate_data, true);
                    }
                    else if (descr_value == 0x0000){
                        ESP_LOGI(GATTS_TABLE_TAG, "notify/indicate disable ");
                    }else{
                        ESP_LOGE(GATTS_TABLE_TAG, "unknown descr value");
                        esp_log_buffer_hex(GATTS_TABLE_TAG, param->write.value, param->write.len);
                    }

                }
                /* send response when param->write.need_rsp is true*/
                if (param->write.need_rsp){
                    esp_ble_gatts_send_response(gatts_if, param->write.conn_id, param->write.trans_id, ESP_GATT_OK, NULL);
                }
            }else{
                /* handle prepare write */
                example_prepare_write_event_env(gatts_if, &prepare_write_env, param);
            }
      	    break;
        case ESP_GATTS_EXEC_WRITE_EVT:
            // the length of gattc prepare write data must be less than GATTS_DEMO_CHAR_VAL_LEN_MAX.
            ESP_LOGI(GATTS_TABLE_TAG, "ESP_GATTS_EXEC_WRITE_EVT");
            example_exec_write_event_env(&prepare_write_env, param);
            break;
        case ESP_GATTS_MTU_EVT:
            ESP_LOGI(GATTS_TABLE_TAG, "ESP_GATTS_MTU_EVT, MTU %d", param->mtu.mtu);
            break;
        case ESP_GATTS_CONF_EVT:
            ESP_LOGI(GATTS_TABLE_TAG, "ESP_GATTS_CONF_EVT, status = %d, attr_handle %d", param->conf.status, param->conf.handle);
            break;
        case ESP_GATTS_START_EVT:
            if(create_tab1 == false) {
                ESP_LOGI(GATTS_TABLE_TAG, "SERVICE_START_EVT1, status %d, service_handle %d", param->start.status, param->start.service_handle);
                esp_err_t create_attr_ret1 = esp_ble_gatts_create_attr_tab(gatt_db2, gatts_if, HRS_IDX_NB2, SVC_INST_ID1);
                if (create_attr_ret1){
                    ESP_LOGE(GATTS_TABLE_TAG, "create attr table2 failed, error code = %x", create_attr_ret1);
                }
                create_tab1 = true;
            } else {
                ESP_LOGI(GATTS_TABLE_TAG, "SERVICE_START_EVT2, status %d, service_handle %d", param->start.status, param->start.service_handle);
            }
            break;
        case ESP_GATTS_CONNECT_EVT:

            Ble_Connect_Event_Pro();
            ESP_LOGI(GATTS_TABLE_TAG, "ESP_GATTS_CONNECT_EVT, conn_id = %d", param->connect.conn_id);
            esp_log_buffer_hex(GATTS_TABLE_TAG, param->connect.remote_bda, 6);
            esp_ble_conn_update_params_t conn_params = {0};
            memcpy(conn_params.bda, param->connect.remote_bda, sizeof(esp_bd_addr_t));
            /* For the iOS system, please refer to Apple official documents about the BLE connection parameters restrictions. */
            conn_params.latency = 0;
            conn_params.max_int = 0x20;    // max_int = 0x20*1.25ms = 40ms
            conn_params.min_int = 0x10;    // min_int = 0x10*1.25ms = 20ms
            conn_params.timeout = 400;    // timeout = 400*10ms = 4000ms
            //start sent the update connection parameters to the peer device.
            esp_ble_gap_update_conn_params(&conn_params);

            break;
        case ESP_GATTS_DISCONNECT_EVT:

            Ble_DisConnect_Event_Pro();
            ESP_LOGI(GATTS_TABLE_TAG, "ESP_GATTS_DISCONNECT_EVT, reason = 0x%x", param->disconnect.reason);
            esp_ble_gap_start_advertising(&adv_params);

            break;
        case ESP_GATTS_CREAT_ATTR_TAB_EVT:{
            if(create_tab1 == false) {
                if (param->add_attr_tab.status != ESP_GATT_OK){
                    ESP_LOGE(GATTS_TABLE_TAG, "create attribute table failed, error code=0x%x", param->add_attr_tab.status);
                }
                else if (param->add_attr_tab.num_handle != HRS_IDX_NB){
                    ESP_LOGE(GATTS_TABLE_TAG, "create attribute table abnormally, num_handle (%d) \
                            doesn't equal to HRS_IDX_NB(%d)", param->add_attr_tab.num_handle, HRS_IDX_NB);
                }
                else {
                    ESP_LOGI(GATTS_TABLE_TAG, "create attribute table successfully, the number handle = %d\n",param->add_attr_tab.num_handle);
                    memcpy(heart_rate_handle_table, param->add_attr_tab.handles, sizeof(heart_rate_handle_table));
                    esp_ble_gatts_start_service(heart_rate_handle_table[IDX_SVC]);

                    // for(int ii = 0; ii<4; ii++)
                    // {
                    //     printf("heart_rate_handle_table[%d] = %d\r\n", ii, heart_rate_handle_table[ii]);
                    // }
                }
            } else {
                if (param->add_attr_tab.status != ESP_GATT_OK){
                    ESP_LOGE(GATTS_TABLE_TAG, "create attribute table failed, error code=0x%x", param->add_attr_tab.status);
                }
                else if (param->add_attr_tab.num_handle != HRS_IDX_NB2){
                    ESP_LOGE(GATTS_TABLE_TAG, "create attribute table abnormally, num_handle (%d) \
                            doesn't equal to HRS_IDX_NB(%d)", param->add_attr_tab.num_handle, HRS_IDX_NB2);
                }
                else {
                    ESP_LOGI(GATTS_TABLE_TAG, "create attribute table successfully, the number handle = %d\n",param->add_attr_tab.num_handle);
                    memcpy(heart_rate_handle_table2, param->add_attr_tab.handles, sizeof(heart_rate_handle_table2));
                    esp_ble_gatts_start_service(heart_rate_handle_table2[IDX_SVC2]);

                    // for(int ii = 0; ii<4; ii++)
                    // {
                    //     printf("heart_rate_handle_table2[%d] = %d\r\n", ii, heart_rate_handle_table2[ii]);
                    // }
                }  
            }
            break;
        }
        case ESP_GATTS_STOP_EVT:
        case ESP_GATTS_OPEN_EVT:
        case ESP_GATTS_CANCEL_OPEN_EVT:
        case ESP_GATTS_CLOSE_EVT:
        case ESP_GATTS_LISTEN_EVT:
        case ESP_GATTS_CONGEST_EVT:
        case ESP_GATTS_UNREG_EVT:
        case ESP_GATTS_DELETE_EVT:
        default:
            break;
    }
}


static void gatts_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param)
{

    /* If event is register event, store the gatts_if for each profile */
    if (event == ESP_GATTS_REG_EVT) {
        if (param->reg.status == ESP_GATT_OK) {
            heart_rate_profile_tab[PROFILE_APP_IDX].gatts_if = gatts_if;
        } else {
            ESP_LOGE(GATTS_TABLE_TAG, "reg app failed, app_id %04x, status %d",
                    param->reg.app_id,
                    param->reg.status);
            return;
        }
    }
    do {
        int idx;
        for (idx = 0; idx < PROFILE_NUM; idx++) {
            /* ESP_GATT_IF_NONE, not specify a certain gatt_if, need to call every profile cb function */
            if (gatts_if == ESP_GATT_IF_NONE || gatts_if == heart_rate_profile_tab[idx].gatts_if) {
                if (heart_rate_profile_tab[idx].gatts_cb) {
                    heart_rate_profile_tab[idx].gatts_cb(event, gatts_if, param);
                }
            }
        }
    } while (0);
}



void Get_Mac_Init(void )
{
    uint8_t ble_mac[10] = {0};
    char temp[10] = {0};
    char temp1[20] = {0};
    esp_read_mac(ble_mac, ESP_MAC_BT);
  //  printf("%d\n",temp);

  //  sprintf(temp, "%02X%02X", ble_mac[4], ble_mac[5]);
    int g;
    for(g=0;g<6;g++)
    {
        srand ((int)ble_mac[g]);
        if(g == 0)
        {
            temp[g] = (char)rand()%5;
        }
        else
        {
            temp[g] = (char)rand()%10;
            temp[g] += 48;
        }
     //   printf("%d  ",temp[g]);
       // printf("%d\n",);
    //printf("%d  ",ble_mac[g]);
    }
 //   printf("\n");
    if(temp[0] == 0)
    {
        temp[0] += 69;
    }
    else if(temp[0] == 1)
    {
        temp[0] = 70;
    }
    else if(temp[0] == 2)
    {
        temp[0] = 72;
    }
    else if(temp[0] == 3)
    {
        temp[0] = 73;
    }
    else if(temp[0] == 4)
    {
        temp[0] = 85;
    }
   // srand (ble_mac[0]);

    raw_adv_data[sizeof(raw_adv_data) - 6] = temp[0];
    raw_adv_data[sizeof(raw_adv_data) - 5] = temp[1];
    raw_adv_data[sizeof(raw_adv_data) - 4] = temp[2];
    raw_adv_data[sizeof(raw_adv_data) - 3] = temp[3];
    raw_adv_data[sizeof(raw_adv_data) - 2] = temp[4];
    raw_adv_data[sizeof(raw_adv_data) - 1] = temp[5];
    // ESP_LOGW(GATTS_TABLE_TAG, "BLE_MAC IS %s : ",
    //                 &raw_adv_data[11]);
    // ESP_LOGW(GATTS_TABLE_TAG, "BLE_MAC IS %s : ",
    //                 temp);      

    // printf("My MAC:\n");
    esp_log_buffer_hex(GATTS_TABLE_TAG, ble_mac, 6);          

    BT_Device_Name[sizeof(BT_Device_Name) - 14] = temp[0];
    BT_Device_Name[sizeof(BT_Device_Name) - 13] = temp[1];
    BT_Device_Name[sizeof(BT_Device_Name) - 12] = temp[2];
    BT_Device_Name[sizeof(BT_Device_Name) - 11] = temp[3];
    BT_Device_Name[sizeof(BT_Device_Name) - 10] = temp[4];
    BT_Device_Name[sizeof(BT_Device_Name) - 9] = temp[5];
    
    raw_adv_data[11] = ble_mac[0];
    raw_adv_data[12] = ble_mac[1];
    raw_adv_data[13] = ble_mac[2];
    raw_adv_data[14] = ble_mac[3];
    raw_adv_data[15] = ble_mac[4];
    raw_adv_data[16] = ble_mac[5];

    sprintf(temp1, "%02X%02X%02X%02X%02X%02X", ble_mac[0], ble_mac[1], ble_mac[2], ble_mac[3], ble_mac[4], ble_mac[5]);


    for(int i=0; i<12; i++)
    {
        char_value[i] = temp1[i];
    }
}


void bsp_Ble_Init(void)
{
    esp_err_t ret;

    // Get_Mac_Init();


    /* Initialize NVS. */
    // ret = nvs_flash_init();
    // if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
    //     ESP_ERROR_CHECK(nvs_flash_erase());
    //     ret = nvs_flash_init();
    // }
    // ESP_ERROR_CHECK( ret );

    // ESP_ERROR_CHECK(esp_bt_controller_mem_release(ESP_BT_MODE_CLASSIC_BT));

    // esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
    // ret = esp_bt_controller_init(&bt_cfg);
    // if (ret) {
    //     ESP_LOGE(GATTS_TABLE_TAG, "%s enable controller failed: %s", __func__, esp_err_to_name(ret));
    //     return;
    // }

    // ret = esp_bt_controller_enable(ESP_BT_MODE_BLE);
    // if (ret) {
    //     ESP_LOGE(GATTS_TABLE_TAG, "%s enable controller failed: %s", __func__, esp_err_to_name(ret));
    //     return;
    // }

    // ret = esp_bluedroid_init();
    // if (ret) {
    //     ESP_LOGE(GATTS_TABLE_TAG, "%s init bluetooth failed: %s", __func__, esp_err_to_name(ret));
    //     return;
    // }

    // ret = esp_bluedroid_enable();
    // if (ret) {
    //     ESP_LOGE(GATTS_TABLE_TAG, "%s enable bluetooth failed: %s", __func__, esp_err_to_name(ret));
    //     return;
    // }

    ret = esp_ble_gatts_register_callback(gatts_event_handler);
    if (ret){
        ESP_LOGE(GATTS_TABLE_TAG, "gatts register error, error code = %x", ret);
        return;
    }

    ret = esp_ble_gap_register_callback(gap_event_handler);
    if (ret){
        ESP_LOGE(GATTS_TABLE_TAG, "gap register error, error code = %x", ret);
        return;
    }

    ret = esp_ble_gatts_app_register(ESP_APP_ID);
    if (ret){
        ESP_LOGE(GATTS_TABLE_TAG, "gatts app register error, error code = %x", ret);
        return;
    }


    esp_err_t local_mtu_ret = esp_ble_gatt_set_local_mtu(500);
    if (local_mtu_ret){
        ESP_LOGE(GATTS_TABLE_TAG, "set local  MTU failed, error code = %x", local_mtu_ret);
    }


    // /* set the security iocap & auth_req & key size & init key response key parameters to the stack*/
    // esp_ble_auth_req_t auth_req = ESP_LE_AUTH_REQ_SC_MITM_BOND;     //bonding with peer device after authentication
    // esp_ble_io_cap_t iocap = ESP_IO_CAP_NONE;           //set the IO capability to No output No input
    // uint8_t key_size = 16;      //the key size should be 7~16 bytes
    // uint8_t init_key = ESP_BLE_ENC_KEY_MASK | ESP_BLE_ID_KEY_MASK;
    // uint8_t rsp_key = ESP_BLE_ENC_KEY_MASK | ESP_BLE_ID_KEY_MASK;
    // uint8_t oob_support = ESP_BLE_OOB_DISABLE;
    // esp_ble_gap_set_security_param(ESP_BLE_SM_AUTHEN_REQ_MODE, &auth_req, sizeof(uint8_t));
    // esp_ble_gap_set_security_param(ESP_BLE_SM_IOCAP_MODE, &iocap, sizeof(uint8_t));
    // esp_ble_gap_set_security_param(ESP_BLE_SM_MAX_KEY_SIZE, &key_size, sizeof(uint8_t));
    // esp_ble_gap_set_security_param(ESP_BLE_SM_OOB_SUPPORT, &oob_support, sizeof(uint8_t));
    // /* If your BLE device act as a Slave, the init_key means you hope which types of key of the master should distribute to you,
    // and the response key means which key you can distribute to the Master;
    // If your BLE device act as a master, the response key means you hope which types of key of the slave should distribute to you,
    // and the init key means which key you can distribute to the slave. */
    // esp_ble_gap_set_security_param(ESP_BLE_SM_SET_INIT_KEY, &init_key, sizeof(uint8_t));
    // esp_ble_gap_set_security_param(ESP_BLE_SM_SET_RSP_KEY, &rsp_key, sizeof(uint8_t));





    /* set the security iocap & auth_req & key size & init key response key parameters to the stack*/
    // esp_ble_auth_req_t auth_req = ESP_LE_AUTH_REQ_SC_MITM_BOND;     //bonding with peer device after authentication
    // esp_ble_io_cap_t iocap = ESP_IO_CAP_NONE;           //set the IO capability to No output No input
    // uint8_t key_size = 16;      //the key size should be 7~16 bytes
    // uint8_t init_key = ESP_BLE_ENC_KEY_MASK | ESP_BLE_ID_KEY_MASK;
    // uint8_t rsp_key = ESP_BLE_ENC_KEY_MASK | ESP_BLE_ID_KEY_MASK;
    // //set static passkey
    // uint32_t passkey = 123456;
    // uint8_t auth_option = ESP_BLE_ONLY_ACCEPT_SPECIFIED_AUTH_DISABLE;
    // uint8_t oob_support = ESP_BLE_OOB_DISABLE;
    // ret = esp_ble_gap_set_security_param(ESP_BLE_SM_SET_STATIC_PASSKEY, &passkey, sizeof(uint32_t));
    // if(ret)
    // {
    //     printf("!!!!!!!!!!!!!!\r\n");
    // }
    // ret = esp_ble_gap_set_security_param(ESP_BLE_SM_AUTHEN_REQ_MODE, &auth_req, sizeof(uint8_t));
    // if(ret)
    // {
    //     printf("!!!!!!!!!!!!!!\r\n");
    // }
    // ret = esp_ble_gap_set_security_param(ESP_BLE_SM_IOCAP_MODE, &iocap, sizeof(uint8_t));
    // if(ret)
    // {
    //     printf("!!!!!!!!!!!!!!\r\n");
    // }
    // ret = esp_ble_gap_set_security_param(ESP_BLE_SM_MAX_KEY_SIZE, &key_size, sizeof(uint8_t));
    // if(ret)
    // {
    //     printf("!!!!!!!!!!!!!!\r\n");
    // }
    // ret = esp_ble_gap_set_security_param(ESP_BLE_SM_ONLY_ACCEPT_SPECIFIED_SEC_AUTH, &auth_option, sizeof(uint8_t));
    // if(ret)
    // {
    //     printf("!!!!!!!!!!!!!!\r\n");
    // }
    // ret = esp_ble_gap_set_security_param(ESP_BLE_SM_OOB_SUPPORT, &oob_support, sizeof(uint8_t));
    // if(ret)
    // {
    //     printf("!!!!!!!!!!!!!!\r\n");
    // }
    // /* If your BLE device acts as a Slave, the init_key means you hope which types of key of the master should distribute to you,
    // and the response key means which key you can distribute to the master;
    // If your BLE device acts as a master, the response key means you hope which types of key of the slave should distribute to you,
    // and the init key means which key you can distribute to the slave. */
    // ret = esp_ble_gap_set_security_param(ESP_BLE_SM_SET_INIT_KEY, &init_key, sizeof(uint8_t));
    // if(ret)
    // {
    //     printf("!!!!!!!!!!!!!!\r\n");
    // }
    // ret = esp_ble_gap_set_security_param(ESP_BLE_SM_SET_RSP_KEY, &rsp_key, sizeof(uint8_t));
    // if(ret)
    // {
    //     printf("!!!!!!!!!!!!!!\r\n");
    // }
}
