/**
 ****************************************************************************************
 *
 * @file wx_airsync_prf.c
 *
 * @brief Application entry point
 *
 * Copyright (C) Espressif 2016
 * Created by Yulong at 2016/9/29
 *
 *
 ****************************************************************************************
 */
#include "wx_airsync_prf.h"

#if (WX_AIRSYNC_CFG)

#include <stdint.h>
 
#include <string.h>
#include <stdbool.h>
#include <stdio.h>

#include "bt_target.h"
#include "bt_trace.h"
#include "bt_types.h"
#include "gatt_api.h"
#include "bta_api.h"
#include "bta_gatt_api.h"
#include "bta_gatts_int.h"



tAIRSYNC_CB_ENV airsync_cb_env;


/*****************************************************************************
**  Constants
*****************************************************************************/
static void airsync_profile_cb(tBTA_GATTS_EVT event,  tBTA_GATTS *p_data);


/*******************************************************************************
**
** Function         airsync_profile_cb
**
** Description      the callback function after the profile has been register to the BTA manager module
**
** Returns          NULL 
**
*******************************************************************************/
static void airsync_profile_cb(tBTA_GATTS_EVT event, tBTA_GATTS *p_data)
{
	tBTA_GATTS_RSP rsp;
	tBT_UUID uuid = {LEN_UUID_16, {ATT_SVC_AIRSYNC}};
	tAirSync_INST  *p_inst = &airsync_cb_env.airsync_inst;
	
	
	LOG_ERROR("airsync profile cb event = %x\n",event);
	switch(event)	
	{
		case BTA_GATTS_REG_EVT:
			
			if(p_data->reg_oper.status != BTA_GATT_OK)
			{
				LOG_ERROR("button profile register failed\n");
			}
			airsync_cb_env.gatt_if = p_data->reg_oper.server_if;
			airsync_cb_env.enabled = true;
			
			if(p_data->reg_oper.uuid.uu.uuid16 == ATT_SVC_AIRSYNC)
			{
				AirSync_CreateService();
			}
			break;
		case BTA_GATTS_READ_EVT:
			
			if(airsync_cb_env.clcb.connected && airsync_cb_env.enabled){
				//tBTA_GATTS_RSP rsp;
				memset(&rsp,0,sizeof(tBTA_GATTS_API_RSP));
				rsp.attr_value.handle = p_data->req_data.p_data->read_req.handle;
				rsp.attr_value.len = 2;
				BTA_GATTS_SendRsp(p_data->req_data.conn_id,p_data->req_data.trans_id,
					  p_data->req_data.status,&rsp);
			}
			break;
		case BTA_GATTS_WRITE_EVT:
			if(airsync_cb_env.clcb.connected && airsync_cb_env.enabled){
				 	BTA_GATTS_SendRsp(p_data->req_data.conn_id,p_data->req_data.trans_id,
								p_data->req_data.status,NULL);

			}
			break;
		case BTA_GATTS_CONF_EVT:
			
			break;
		case BTA_GATTS_CREATE_EVT:
			uuid.uu.uuid16 = ATT_CHAR_AIRSYNC_WIT;
			
			airsync_cb_env.clcb.cur_srvc_id=  p_data->create.service_id;
			airsync_cb_env.is_primery =  p_data->create.is_primary;
			//start the airsync service after created
			BTA_GATTS_StartService(p_data->create.service_id,BTA_GATT_TRANSPORT_LE);
			//add the frist airsync characteristic --> write characteristic
			BTA_GATTS_AddCharacteristic(airsync_cb_env.clcb.cur_srvc_id,&uuid,
										(GATT_PERM_WRITE|GATT_PERM_READ),
										(GATT_CHAR_PROP_BIT_READ|GATT_CHAR_PROP_BIT_WRITE));
			break;
			
		case BTA_GATTS_ADD_CHAR_EVT:
			if(p_data->add_result.char_uuid.uu.uuid16 == ATT_CHAR_AIRSYNC_WIT)
			{
				uuid.uu.uuid16 = ATT_CHAR_AIRSYBC_NTF;
				//tBTA_GATT_PERM perm = GATT_PERM_READ;
				//tBTA_GATT_CHAR_PROP prop = (GATT_CHAR_PROP_BIT_READ|GATT_CHAR_PROP_BIT_NOTIFY);
				//save the att handle to the env
				airsync_cb_env.airsync_inst.airsync_wirt_hdl = p_data->add_result.attr_id;
				//add the second airsync characteristic --> Notify characteristic
				BTA_GATTS_AddCharacteristic(airsync_cb_env.clcb.cur_srvc_id,&uuid,
										GATT_PERM_READ,(GATT_CHAR_PROP_BIT_READ|GATT_CHAR_PROP_BIT_INDICATE));
			}else if(p_data->add_result.char_uuid.uu.uuid16 == ATT_CHAR_AIRSYBC_NTF){ 
				//tBTA_GATT_PERM perm = (GATT_PERM_WRITE|GATT_PERM_WRITE);
				uuid.uu.uuid16 = GATT_UUID_CHAR_CLIENT_CONFIG;
				airsync_cb_env.airsync_inst.airsync_ntf_hdl = p_data->add_result.attr_id;
				BTA_GATTS_AddCharDescriptor (airsync_cb_env.clcb.cur_srvc_id,
                                  				(GATT_PERM_WRITE|GATT_PERM_WRITE),
                                  				&uuid);

				uuid.uu.uuid16 = ATT_CHAR_AIRSYNC_READ;
				//add the third airsync characteristic --> Read characteristic
				BTA_GATTS_AddCharacteristic(airsync_cb_env.clcb.cur_srvc_id,&uuid,
											GATT_PERM_READ,
											GATT_CHAR_PROP_BIT_READ);
			}else if(p_data->add_result.char_uuid.uu.uuid16 == ATT_CHAR_AIRSYNC_READ){
				airsync_cb_env.airsync_inst.airsync_read_hdl = p_data->add_result.attr_id;
			}
			
			break;
		case BTA_GATTS_ADD_CHAR_DESCR_EVT:
			if(p_data->add_result.char_uuid.uu.uuid16 == GATT_UUID_CHAR_CLIENT_CONFIG)
			{
				airsync_cb_env.airsync_inst.airsync_cfg_hdl = p_data->add_result.attr_id;
			}
			break;
		case BTA_GATTS_CONNECT_EVT:
			//set the connection flag to true
			airsync_env_clcb_alloc(p_data->conn.conn_id, p_data->conn.remote_bda);
			break;
		case BTA_GATTS_DISCONNECT_EVT:
			//set the connection flag to true
			airsync_cb_env.clcb.connected = false;
			break;
		case BTA_GATTS_OPEN_EVT:
			break;
		case BTA_GATTS_CLOSE_EVT:
			if(airsync_cb_env.clcb.connected && (airsync_cb_env.clcb.conn_id == p_data->conn.conn_id))
			{
				//set the connection channal congested flag to true
				airsync_cb_env.clcb.congest =  p_data->congest.congested;
			}
			break;
		case BTA_GATTS_LISTEN_EVT:
			break;
		case BTA_GATTS_CONGEST_EVT: 
			//set the congest flag
			airsync_cb_env.clcb.congest = p_data->congest.congested;
			break;
		default:
			break;
	}
}


/*******************************************************************************
**
** Function         AirSync_CreateService
**
** Description      Create a Service for the airsync profile
**
** Returns          NULL 
**
*******************************************************************************/
void AirSync_CreateService(void)
{
	tBTA_GATTS_IF server_if ;
	tBT_UUID uuid = {LEN_UUID_16, {ATT_SVC_AIRSYNC}};
	UINT16 num_handle = WX_IDX_NB;
	UINT8 inst = 0x00;
	server_if = airsync_cb_env.gatt_if;
	airsync_cb_env.inst_id = inst;
	
	BTA_GATTS_CreateService(server_if,&uuid,inst,num_handle,true);
	
}

/*******************************************************************************
**
** Function         airsync_env_clcb_alloc
**
** Description      The function allocates a GATT profile  connection link control block
**
** Returns          NULL if not found. Otherwise pointer to the connection link block.
**
*******************************************************************************/
tAirSync_CLCB *airsync_env_clcb_alloc (UINT16 conn_id, BD_ADDR remote_bda)
{
	tAirSync_CLCB *p_clcb = NULL;
	p_clcb = &airsync_cb_env.clcb; 
	
	if(!p_clcb->in_use)
	{
		p_clcb->in_use = TRUE;
		p_clcb->conn_id = conn_id;
		LOG_ERROR("p_clcb->conn_id = %x\n",conn_id);
		p_clcb->connected = TRUE;
		memcpy(p_clcb->remote_bda,remote_bda,BD_ADDR_LEN);	
	}

	return p_clcb;
}

/*******************************************************************************
**
** Function         airsync_env_find_conn_id_by_bd_adddr
**
** Description      The function searches all LCB with macthing bd address
**
** Returns          total number of clcb found.
**
*******************************************************************************/
UINT16 airsync_env_find_conn_id_by_bd_adddr(BD_ADDR remote_bda)
{
	UINT8 i_clcb;
	tAirSync_CLCB *p_clcb = NULL;

	for(i_clcb = 0, p_clcb = &airsync_cb_env.clcb; i_clcb < 1; i_clcb++, p_clcb++)
	{
		if(p_clcb->in_use && p_clcb->connected &&memcmp(p_clcb->remote_bda,remote_bda,BD_ADDR_LEN))
		{
			return p_clcb->conn_id;
		}
	}

	return GATT_INVALID_CONN_ID;
}


/*******************************************************************************
**
** Function         airsync_init
**
** Description      Initializa the GATT Service for airsync profiles.
**
*******************************************************************************/
tGATT_STATUS AirSync_Init(tAIRSYNC_CBACK *call_back)
{
	tBT_UUID app_uuid = {LEN_UUID_16,{ATT_SVC_AIRSYNC}};
	

	if(airsync_cb_env.enabled)
	{
		LOG_ERROR("airsync svc already initaliezd\n");
		return GATT_ERROR;
	}
	else
	{
		memset(&airsync_cb_env,0,sizeof(tAIRSYNC_CB_ENV));
	}
	

	 if(call_back != NULL)
        {
            airsync_cb_env.airsync_inst.p_cback = call_back;
        }

	
	/* register the airsync profile to the BTA_GATTS module*/
	 BTA_GATTS_AppRegister(&app_uuid,airsync_profile_cb);

	airsync_cb_env.enabled = TRUE;

	return GATT_SUCCESS;
}

#endif	///WX_AIRSYNC_CFG