/**
 * @file app_cls.h
 * @brief CAIIC Link Service (CLS) application module: custom 128-bit UUID GATT
 *        service built on the SDK rdtss profile engine.
 *
 * Service:        0000CA10-CA11-4B11-8000-CA11CA11CA11
 * Write char:     0000CA11-CA11-4B11-8000-CA11CA11CA11 (Write Without Response)
 * Notify char:    0000CA12-CA11-4B11-8000-CA11CA11CA11 (Notify + CCCD)
 */
#ifndef APP_CLS_H_
#define APP_CLS_H_

#include "rwip_config.h"     // SW configuration

#if (BLE_RDTSS_SERVER)

#include <stdint.h>

/* 128-bit UUIDs, LSB first (attribute table byte order, same as rdtss demo) */
#define ATT_SERVICE_CLS_128          {0x10,0xCA,0x00,0x00,  0x11,0xCA,  0x11,0x4B,  0x00,0x80,  0x11,0xCA,0x11,0xCA,0x11,0xCA}   /*!< Service UUID */
#define ATT_CHAR_CLS_WRITE_128       {0x11,0xCA,0x00,0x00,  0x11,0xCA,  0x11,0x4B,  0x00,0x80,  0x11,0xCA,0x11,0xCA,0x11,0xCA}   /*!< Write characteristic value UUID */
#define ATT_CHAR_CLS_NTF_128         {0x12,0xCA,0x00,0x00,  0x11,0xCA,  0x11,0x4B,  0x00,0x80,  0x11,0xCA,0x11,0xCA,0x11,0xCA}   /*!< Notify characteristic value UUID */

/// CLS Service Attributes Indexes
enum
{
    CLS_IDX_SVC,

    CLS_IDX_WRITE_CHAR,
    CLS_IDX_WRITE_VAL,
    CLS_IDX_WRITE_CFG,

    CLS_IDX_NTF_CHAR,
    CLS_IDX_NTF_VAL,
    CLS_IDX_NTF_CFG,

    CLS_IDX_NB,
};

/* Downlink (phone -> device) write callback */
typedef void (*app_cls_rx_cb_t)(const uint8_t *data, uint16_t len);

/**
 * @brief Register the CLS profile task and its get-itf function.
 */
void app_cls_init(void);

/**
 * @brief Add a CLS service instance into the GATT database.
 */
void app_cls_add_cls(void);

/**
 * @brief Send one notification packet on the notify characteristic.
 * @return 0 if the packet was queued to the profile, -1 if notify is not
 *         enabled by the peer or a previous packet is still in flight.
 */
int app_cls_send_notify(const uint8_t *data, uint16_t length);

/**
 * @brief Register the callback invoked when the peer writes the write char.
 */
void app_cls_set_rx_callback(app_cls_rx_cb_t cb);

/**
 * @brief Reset the notify/busy state. Called on connection and disconnection.
 */
void app_cls_notify_state_reset(void);

#endif //BLE_RDTSS_SERVER

#endif // APP_CLS_H_