#include <math.h>
#include <string.h>
#include "sx126x.h"
#include "sx126x-board.h"
#include "delay.h"
#include "Lora.h"
#include "user.h"
#include "sx126x-board.h"
#include "string.h"
#include "stdio.h"
#include "delay.h"
#include "main.h"
#include <stdlib.h>
static RadioEvents_t RadioEvents;
#define USE_MODEM_LORA
//#define USE_MODEM_FSK
#define REGION_CN779 
void Lora47xrx_Init(void);
void Lora433_change(void);
void Lora433rx_Init(void);
uint32_t RxDutyCycle_RX_time   =128;
uint32_t RxDutyCycle_SLEEP_time=256;
#define LORA_FREQUENCY0 470200000
#define LORA_FREQUENCY1 471200000
#define LORA_FREQUENCY2 472200000
#define LORA_FREQUENCY3 473200000
#define LORA_FREQUENCY4 474200000
uint16_t Lora_rece_error;
#define LORA_RX_433 1
#define LORA_TX_47X 2
#define LORA_RX_47X 3
uint8_t Lora_status=0;

#define RF_FREQUENCY                              433000000 // Hz
#define RF_FREQUENCY_R                              500000000 // Hz
#define RF_FREQUENCY_T                              470200000 // Hz
void LoraSendComMap(uint8_t data_length, uint8_t index);
#define TX_OUTPUT_POWER                             22        // 22 dBm

extern bool IrqFired;
extern uint8_t lora_yingda_flag;
uint16_t lora_yingda_num;


//bool EnableMaster=true;//Ö÷Ñ¡Ôñ
bool EnableMaster=false;//´ÓÑ¡Ôñ

uint16_t  crc_value;
/*!
 * Radio events function pointer
 */

static RadioEvents_t RadioEvents;

#if defined( USE_MODEM_LORA )

#define LORA_BANDWIDTH                              2         // [0: 125 kHz,    
                                                              //  1: 250 kHz,
                                                              //  2: 500 kHz,
                                                              //  3: Reserved]
#define LORA_SPREADING_FACTOR                       5         // [SF7..SF12]    
#define LORA_CODINGRATE                             1         // [1: 4/5,       
                                                              //  2: 4/6,
                                                              //  3: 4/7,
                                                              //  4: 4/8]
#define LORA_PREAMBLE_LENGTH_T                      8         // Same for Tx 
#define LORA_PREAMBLE_LENGTH_R                      8        // Same for Rx
//#define LORA_PREAMBLE_LENGTH                      990         // Same for Tx and Rx
#define LORA_SYMBOL_TIMEOUT                         0         // Symbols
#define LORA_FIX_LENGTH_PAYLOAD_ON                  false
#define LORA_IQ_INVERSION_ON_T                      false
#define LORA_IQ_INVERSION_ON_R                      false


#elif defined( USE_MODEM_FSK )

#define FSK_FDEV                                    5e3      // Hz 
#define FSK_DATARATE                                2.4e3      // bps
#define FSK_BANDWIDTH                               20e3     // Hz >> DSB in sx126x
#define FSK_AFC_BANDWIDTH                           100e3     // Hz
#define FSK_PREAMBLE_LENGTH                         5         // Same for Tx and Rx
#define FSK_FIX_LENGTH_PAYLOAD_ON                   false

#else
    #error "Please define a modem in the compiler options."
#endif

typedef enum
{
    LOWPOWER,
    RX,
    RX_TIMEOUT,
    RX_ERROR,
    TX,
    TX_TIMEOUT,
}States_t;

//#define RX_TIMEOUT_VALUE                            1000
#define RX_TIMEOUT_VALUE                            100
#define BUFFER_SIZE                                 64 // Define the payload size here

const uint8_t PingMsg[] = "PING";
const uint8_t PongMsg[] = "PONG";

uint16_t BufferSize = BUFFER_SIZE;
uint8_t TX_Buffer[BUFFER_SIZE];
uint8_t RX_Buffer[BUFFER_SIZE];


States_t State = LOWPOWER;

int8_t RssiValue = 0;
int8_t SnrValue = 0;
void OnTxDone( void );
void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr );
void OnTxTimeout( void );
void OnRxTimeout( void );
void OnRxError( void );
uint8_t  lora_chongfuyingda_flag;
uint8_t Lora_rx_open_flag;
extern u32 Loratx_frequency;
void LedToggle(void)

{
//	HAL_GPIO_TogglePin(GPIOB, LED1_Pin);
}
//void Lora_tx_mode( void )
//{
//Lora_status=LORA_TX_47X;
//        RadioEvents.TxDone = OnTxDone;
//    RadioEvents.RxDone = OnRxDone;
//    RadioEvents.TxTimeout = OnTxTimeout;
//    RadioEvents.RxTimeout = OnRxTimeout;
//    RadioEvents.RxError = OnRxError;

//        Radio.Init( &RadioEvents );
//            Radio.SetChannel( Loratx_frequency );
//            
//            Radio.SetTxConfig( MODEM_LORA, TX_OUTPUT_POWER, 0, 2,
//            7, LORA_CODINGRATE,LORA_PREAMBLE_LENGTH_T, LORA_FIX_LENGTH_PAYLOAD_ON,
//            false, 0, 0, LORA_IQ_INVERSION_ON_T, 3000 );

//}
//void Lora_rx_open( void )
//{
//    if(Lora_rx_open_flag==1)
//    {
//    Lora_Init();
//    Lora_rx_open_flag=0;
//    }
//    if(lora_yingda_flag&&lora_chongfuyingda_flag==0)
//    {
//        printf("Lora:%d  %d\r\n",lora_yingda_flag,lora_chongfuyingda_flag);
//    lora_chongfuyingda_flag=1;
//    RadioEvents.TxDone = OnTxDone;
//    RadioEvents.RxDone = OnRxDone;
//    RadioEvents.TxTimeout = OnTxTimeout;
//    RadioEvents.RxTimeout = OnRxTimeout;
//    RadioEvents.RxError = OnRxError;

//    Radio.Init( &RadioEvents );
//    Radio.SetChannel( 500000000 );
//    Radio.SetRxConfig( MODEM_LORA, 0, 7,
//    LORA_CODINGRATE, 0, LORA_PREAMBLE_LENGTH_R,
//    LORA_SYMBOL_TIMEOUT, LORA_FIX_LENGTH_PAYLOAD_ON,
//    0, false, 0, 0, true, 1 );

//    SX126xClearIrqStatus( IRQ_RADIO_ALL );
////    Radio.SetRxDutyCycle(RxDutyCycle_RX_time,RxDutyCycle_SLEEP_time);
//        Radio.Rx( RX_TIMEOUT_VALUE ); 

//        
//    }
//}
uint32_t lora_zhuangtai;
void OnTxDone( void )
{
    if(bat_percent>20)
    {LED_TR_OFF;}
    else
    {LED_TB_OFF;}
    
    Radio.Standby();
     Radio.Rx( RX_TIMEOUT_VALUE ); 
}

extern uint32_t lp_time;
uint32_t lora_txtime_old;
extern uint8_t frame_seq_nb2,rec_nearbase_num,ancidlist_num;
uint16_t RX_TIMEOUTs;
extern LPTIM_HandleTypeDef hlptim1;
uint16_t current_time,start_time,end_time;
    uint16_t lora_recv_devid=0;
u32 id;
extern uint8_t Lora_tx_ancnum;
extern uint16_t Lora_tx_ancid[50];
extern uint16_t Lora_tx_ancdist[50];
uint8_t power_and_key=0;
extern u8 battary,button;
u8 lora_seq_nb2;
extern uint8_t stationary_flag;
extern uint8_t anjian_flag;
uint16_t Lora_wangguanid=0;
void Lora_tx_zubao( void )
{
    uint16_t checksum;
                    usart_send[2] = 0x22;//Õý³£Ä£Ê½ 
					usart_send[3] = 11+Lora_tx_ancnum*4;//Êý¾Ý¶Î³¤¶È
                    memcpy(&usart_send[4],&dev_id,2);
					usart_send[6] = lora_seq_nb2;//°üÐò
                    power_and_key=stationary_flag<<1;//°Ñ°´¼ü¸ú¾²Ö¹2ºÏ1£¬·¢³öÈ¥
                    power_and_key=power_and_key+anjian_flag;;
                    memcpy(usart_send+7,&bat_percent,1);
                    memcpy(usart_send+8,&power_and_key,1);
                    usart_send[9] = lora_yingda_flag;//loraµÈ´ýÓ¦´ðλ
                    usart_send[10] = Lora_tx_ancnum;
//                    usart_send[9] = lora_yingda_flag;
					memcpy(&usart_send[11],&Lora_tx_ancid,2*Lora_tx_ancnum);				
					memcpy(&usart_send[11+Lora_tx_ancnum*2],&Lora_tx_ancdist,2*Lora_tx_ancnum);
                    memcpy(&usart_send[11+Lora_tx_ancnum*4],&Lora_wangguanid,2);
					checksum = Checksum_u16(&usart_send[2],11+4*Lora_tx_ancnum);
					memcpy(&usart_send[13+4*Lora_tx_ancnum],&checksum,2);
}
extern uint8_t lora_tx_flag;
uint16_t current_count;
u16 Lora_recevcount;
extern uint16_t no_data_chongqi_num;
uint8_t du_flag;
uint8_t xie_flag;
extern uint8_t no_yingdaflag;
uint16_t Beepchixutime;
void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr )
{   
        BufferSize = size;
        memcpy( RX_Buffer, payload, BufferSize );
        RssiValue = rssi;
        SnrValue = snr;
        Radio.Standby();
printf("ÊÕµ½lora\r\n");
//    if(Lora_status==LORA_RX_433)
    if(RX_Buffer[0]==0x50&&RX_Buffer[1]==0x49)
    {
    Lora_recevcount=HAL_LPTIM_ReadCounter(&hlptim1);
    Lora_recevcount=Lora_recevcount+197;//197´ú±í6ms
    if(Lora_recevcount>=32768)
    {
    Lora_recevcount -=32768;
    }
//    HAL_GPIO_WritePin(GPIOA, GPIO_PIN_15, GPIO_PIN_SET);
//    BufferSize = size;
//    memcpy( RX_Buffer, payload, BufferSize );
//    RssiValue = rssi;
//    SnrValue = snr;
//    no_data_chongqi_num=0;
//    Radio.Standby();
    HAL_GPIO_WritePin(GPIOA, GPIO_PIN_15, GPIO_PIN_SET);

        HAL_GPIO_WritePin(RADIO_NSS_GPIO_Port, RADIO_NSS_Pin, GPIO_PIN_SET); //ƬѡloraÎÞЧ

        	id =  dwt_readdevid() ;
	while (0xDECA0130!=id) 
    {
        u8 iderror_count = 0;
        id =  dwt_readdevid() ;
        if(iderror_count++>100)
        {
////////            printf("UWBоƬID´íÎó");
            break;
        }
    }
////////            printf("Anchor_App\r\n");
        current_count=HAL_LPTIM_ReadCounter(&hlptim1);
		while(current_count<Lora_recevcount||current_count>Lora_recevcount+16384)
		{
			current_count=HAL_LPTIM_ReadCounter(&hlptim1);
			if(current_count<Lora_recevcount-300)
			{
				break;
			}
		}
//    HAL_GPIO_WritePin(GPIOA, GPIO_PIN_15, GPIO_PIN_RESET);
            Anchor_App();
//    HAL_GPIO_WritePin(GPIOA, GPIO_PIN_15, GPIO_PIN_RESET);            
            HAL_GPIO_WritePin(RADIO_NSS_GPIO_Port, RADIO_NSS_Pin, GPIO_PIN_RESET); //ƬѡloraÓÐЧ
            delay_ms(1);
//            Radio.SetRxDutyCycle(RxDutyCycle_RX_time,RxDutyCycle_SLEEP_time);
        Radio.Rx( 9999 );
        printf("½ÓÊÕµ½uwb²â¾à:%d",Lora_tx_ancdist[0]);
    }
    if(RX_Buffer[0]==0x55&&RX_Buffer[1]==0xEE)
    {
//        BufferSize = size;
//        memcpy( RX_Buffer, payload, BufferSize );
//        RssiValue = rssi;
//        SnrValue = snr;
//        Radio.Standby();
        if(RX_Buffer[0]==0x55&&RX_Buffer[1]==0xEE&&!memcmp(&dev_id,&RX_Buffer[4],2))
        {
            if(RX_Buffer[6]==0)//²»ÐèÒª²Ù×÷£¬Õý³£Ó¦´ð
            {
                Lora_rece_error=0;
            memcpy( &Lora_wangguanid, &RX_Buffer[2], 2 );
            }
            if(RX_Buffer[6]==2) //¶Á²Ù×÷£¬ÏÂÒ»´Îlora·¢Ë͵ÄʱºòÒª·¢³öÈ¥
            {    
//                no_yingda_time=5;
                 Lora_rece_error=0;
                if(no_yingdaflag==0)
                {
            du_flag=1;
            LoraSendComMap(RX_Buffer[8],RX_Buffer[7]>>1);	
                }                    
            }
            if(RX_Buffer[6]==1)//д²Ù×÷
            {
                 Lora_rece_error=0;
//                uint16_t rxbuff1;
//                xie_flag=1;
//                memcpy(&rxbuff1, &RX_Buffer[9], 2);
//                memcpy((uint8_t*)&g_com_map + RX_Buffer[7], &rxbuff1, RX_Buffer[8]);
//                no_yingda_time=5;
                 if(no_yingdaflag==0)
                 {
                     if(RX_Buffer[7]==0x10)
                     {
                     Beep_On();
                     memcpy(&Beepchixutime, &RX_Buffer[9], 2);
                     }
                     else
                     {
                memcpy((uint8_t*)&g_com_map + RX_Buffer[7], &RX_Buffer[9], RX_Buffer[8]);
                save_com_map_to_flash();
                delay_ms(100);
                NVIC_SystemReset();
                     }
                 }
            }
        }
        Lora433_change();
    }
}

void OnTxTimeout( void )
{
       Radio.Standby();
    Lora433_change();
}
    uint8_t tm;
uint16_t Lora_rece_error;
void OnRxTimeout( void )
{
    Radio.Standby();
    if(Lora_status==LORA_RX_47X) //470rx³¬Ê±£¬Ïȵ÷ʱ¼ä·¢ËÍ£¬5´Îºó»¹²»ÐУ¬»»Æµ¶Î
    {
        Lora_rece_error++;
        if(Lora_rece_error>5)
        {
            Loratx_frequency=Loratx_frequency+1000000;
            if(Loratx_frequency>474000000)
            {Loratx_frequency=470000000;}
            Lora_rece_error=0;
            Lora_wangguanid=0;
        }
        else
        {
           tm= (rand()%100);
        SetNextPollTime(tm);
            HAL_LPTIM_TimeOut_Start_IT(&hlptim1, LPTIMER_1S_COUNT, tm);
        }
    }
    Lora433_change();
}

void OnRxError( void )
{

    Radio.Standby();
    Lora433_change();
}

void Lora47X_Init(void)
{
    Lora_status=LORA_RX_47X;
    RadioEvents.TxDone = OnTxDone;
    RadioEvents.RxDone = OnRxDone;
    RadioEvents.TxTimeout = OnTxTimeout;
    RadioEvents.RxTimeout = OnRxTimeout;
    RadioEvents.RxError = OnRxError;

        Radio.Init( &RadioEvents );
        Radio.SetChannel( Loratx_frequency );		
    
        Radio.SetTxConfig( MODEM_LORA, TX_OUTPUT_POWER, 0, 2,
        7, LORA_CODINGRATE,LORA_PREAMBLE_LENGTH_T, LORA_FIX_LENGTH_PAYLOAD_ON,
        false, 0, 0, LORA_IQ_INVERSION_ON_T, 3000 );
										 
		Radio.SetRxConfig( MODEM_LORA, LORA_BANDWIDTH, 7,
                                   LORA_CODINGRATE, 0, LORA_PREAMBLE_LENGTH_R,
                                   LORA_SYMBOL_TIMEOUT, LORA_FIX_LENGTH_PAYLOAD_ON,
                                   0, false, 0, 0, LORA_IQ_INVERSION_ON_R, 0 );
}
void Lora433_change(void)
{
    Lora_status=LORA_RX_433;
//            Radio.SetChannel( RF_FREQUENCY );
//            SX126x.ModulationParams.Params.LoRa.SpreadingFactor=5;
//            SX126x.ModulationParams.Params.LoRa.Bandwidth=2;
//            SX126x.ModulationParams.Params.LoRa.CodingRate=1;
//            SX126xSetModulationParams( &SX126x.ModulationParams );
//    Radio.SetRxDutyCycle(RxDutyCycle_RX_time,RxDutyCycle_SLEEP_time);
//    
//        Lora_status=LORA_RX_47X;
    RadioEvents.TxDone = OnTxDone;
    RadioEvents.RxDone = OnRxDone;
    RadioEvents.TxTimeout = OnTxTimeout;
    RadioEvents.RxTimeout = OnRxTimeout;
    RadioEvents.RxError = OnRxError;

        Radio.Init( &RadioEvents );
        Radio.SetChannel( RF_FREQUENCY );		
    
        Radio.SetTxConfig( MODEM_LORA, TX_OUTPUT_POWER, 0, 2,
        5, LORA_CODINGRATE,LORA_PREAMBLE_LENGTH_T, LORA_FIX_LENGTH_PAYLOAD_ON,
        false, 0, 0, LORA_IQ_INVERSION_ON_T, 3000 );
										 
		Radio.SetRxConfig( MODEM_LORA, LORA_BANDWIDTH, LORA_SPREADING_FACTOR,
                                   LORA_CODINGRATE, 0, LORA_PREAMBLE_LENGTH_R,
                                   LORA_SYMBOL_TIMEOUT, LORA_FIX_LENGTH_PAYLOAD_ON,
                                   0, false, 0, 0, LORA_IQ_INVERSION_ON_R, 1 );
          Radio.Rx( 9999 );                                   
//        Radio.SetRxDutyCycle(RxDutyCycle_RX_time,RxDutyCycle_SLEEP_time);
                                   
}