#pragma once
#include <Arduino.h>

#define IRDEBUG_INFO
/*//////////////////////////////////////////////////////////////////////////////////////

Для работы в паре положить декодер в энкодер

*/// Адресация с 1 до 65 499
#define IR_Broadcast 65000 // 65 500 ~ 65 535 - широковещательные пакеты (всем), возможно разделить на 35 типов 
/*
Адрес 0 запрещен и зарезервирован под NULL, либо тесты
IR_MSG_ACCEPT с адреса 0 воспринимается всеми устройствами


Адресное пространство:

Излучатели контрольных точек: 1000 ~ 1999
Излучатели без обратной связиЖ 2000 ~ 2999
Излучатели светофоров: 3000 ~ 3999



/```````````````````````````````````````````````` data pack `````````````````````````````````````````````\                                  
                                                                                                         
{``````````} [````````````````````````] [````````````````````] [````````````````````````] [``````````````]
{ msg type } [   addr_from uint16_t   ] [  addr_to uint16_t  ] [====== data bytes ======] [   CRC Bytes  ]
{..........} [........................] [....................] [........................] [..............]
                                                                                                          
{ aka size } [addr_from_H][addr_from_L] [addr_to_H][addr_to_L] [data_H][data_n..][data_L] [ crc1 ][ crc2 ]
|     0           1            2              3         4          5                         |       |    
\____________________________________________________________________________________________/       |    
|                                                                                                    |    
\____________________________________________________________________________________________________/    

msg type:
                                        //   __________
                                        //  | 01234567 |
                                        //   ----------
                                        //  | xxx..... | = тип сообщения
                                        //  | ...xxxxx | = длина (максимум 31 бита)
                                        //   ---------- */
#define IR_MSG_BACK                  0U //  | 000...... | = Задний сигнал машинки
#define IR_MSG_ACCEPT                1U //  | 001..... | = подтверждение 
#define IR_MSG_REQUEST               2U //  | 010..... | = запрос
#define IR_MSG_                      3U //  | 011..... | = ??
#define IR_MSG_BACK_TO               4U //  | 100..... | = Задний сигнал машинки c адресацией
#define IR_MSG_                      5U //  | 101..... | = ??
#define IR_MSG_DATA_NOACCEPT         6U //  | 110..... | = данные, не требующие подтверждения
#define IR_MSG_DATA_ACCEPT           7U //  | 111..... | = данные требующие подтверждения
;/*                                     //   ----------

/```````````````````` подтверждение ```````````````````\      /``````````````````````````````````````` запрос ``````````````````````````````````\
                                                                                                                      
{``````````} [````````````````````````] [``````````````````] [``````````````]      {``````````} [````````````````````````] [````````````````````````] [``````````````]
{ msg type } [   addr_from uint16_t   ] [=== customByte ===] [   CRC Bytes  ]      { msg type } [   addr_from uint16_t   ] [    addr_to uint16_t    ] [   CRC Bytes  ]
{..........} [........................] [..................] [..............]      {..........} [........................] [........................] [..............]
                                                                                                                                                            
{ 001..... } [addr_from_H][addr_from_L] [=== customByte ===] [ crc1 ][ crc2 ]      { 010..... } [addr_from_H][addr_from_L] [addr_from_H][addr_from_L] [ crc1 ][ crc2 ]
|     0            1           2                  3              4       5          |     0            1           2              3           4           5       6    
\________________________________________________________________/       |          \_____________________________________________________________________/       |    
|                                                                        |          |                                                                             |    
\________________________________________________________________________/          \_____________________________________________________________________________/    



/`````````````````````` Задний сигнал машинки без адресации ``````````````````````\        В (IR_MASK_MSG_INFO & 15U) содержится количество байт
                                                                                           сквозных команд, максимум 15
{``````````} [````````````````````````] [````````````````````````] [``````````````]        Если полезных байт информации нет, отправляется один
{ msg type } [   addr_from uint16_t   ] [====== data bytes ======] [   CRC Bytes  ]        байт нулей
{..........} [........................] [........................] [..............]        
                                                                                           
{ 0000xxxx } [addr_from_H][addr_from_L] [data_H][data_n..][data_L] [ crc1 ][ crc2 ]        
|     0           1            2            3                         |       |            
\_____________________________________________________________________/       |            
|                                                                             |            
\_____________________________________________________________________________/            



/```````````````````````````````````` Задний сигнал машинки с адресацией ````````````````````````````````````\ 
                                                                                    
{``````````} [````````````````````````] [````````````````````````] [````````````````````````] [``````````````] 
{ msg type } [   addr_from uint16_t   ] [    addr_to uint16_t    ] [====== data bytes ======] [   CRC Bytes  ] 
{..........} [........................] [........................] [........................] [..............] 
                                                                                                               
{ 0001xxxx } [addr_from_H][addr_from_L] [addr_from_H][addr_from_L] [data_H][data_n..][data_L] [ crc1 ][ crc2 ] 
|     0           1            2              3           4            5                         |       |     
\________________________________________________________________________________________________/       |     
|                                                                                                        |     
\________________________________________________________________________________________________________/     

*/

#define IR_MASK_MSG_TYPE 0b00000111
#define IR_MASK_MSG_INFO 0b00011111

/*
/////////////////////////////////////////////////////////////////////////////////////*/
typedef uint16_t crc_t;

#define bytePerPack 16                              // колличество байтов в пакете
#ifndef freeFrec
#define freeFrec true
#endif
#define subBufferSize 15 //Буфер для складирования фронтов, пока их не обработают (передатчик)

#define preambPulse 3

#define disablePairDec false // Отключать парный приёмник, возможны баги, используйте setBlindDecoders()

/////////////////////////////////////////////////////////////////////////////////////

#define bitPerByte 8U                                       // Колличество бит в байте
#define addrBytes 2
#define msgBytes 1
#define crcBytes 2
#define poly1 0x31
#define poly2 0x8C
#define syncBits 3U                                         // количество битов синхронизации

#define dataByteSizeMax (msgBytes + addrBytes + addrBytes + bytePerPack + crcBytes)

#define preambFronts (preambPulse*2)                        // количество фронтов преамбулы (Приём)
#define preambToggle ((bitPauseTakts * 2 + bitActiveTakts) * 2 - 1) // колличество переключений преамбулы (Передача)

#define carrierFrec 38000U                                  // частота несущей (Приём/Передача)
#define carrierPeriod (1000000U/carrierFrec)                // период несущей в us (Приём)

// В процессе работы значения будут отклонятся в соответствии с предыдущим битом
#define bitActiveTakts 25U                                  // длительность высокого уровня в тактах 
#define bitPauseTakts 6U                                    // длительность низкого уровня в тактах

#define bitTakts (bitActiveTakts+(bitPauseTakts*2U))          // Общая длительность бита в тактах
#define bitTime (bitTakts*carrierPeriod)                    // Общая длительность бита
#define tolerance 300U

class IR_FOX {
public:
    struct PackOffsets {
        uint8_t msgOffset;
        uint8_t addrFromOffset;
        uint8_t addrToOffset;
        uint8_t dataOffset;
        uint8_t crcOffset;
    };

    struct ErrorsStruct {
        uint8_t lowSignal = 0;
        uint8_t highSignal = 0;
        uint8_t other = 0;

        void reset() {
            lowSignal = 0;
            highSignal = 0;
            other = 0;
        }
        uint16_t all() { return lowSignal + highSignal + other; }

    };

    struct PackInfo {
        uint8_t* buffer = nullptr;
        uint8_t packSize = 0;
        uint16_t crc = 0;
        ErrorsStruct err;
        uint16_t rTime = 0;
    };

    static void checkaddressRuleApply(uint16_t address, uint16_t id, bool& flag) {
        flag = false;
        flag |= id == 0;
        flag |= address == id;
        flag |= address >= IR_Broadcast;
    }

protected:
    ErrorsStruct errors;
    uint8_t crc8(uint8_t* data, uint8_t start, uint8_t end, uint8_t poly) { //TODO: сделать возможность межбайтовой проверки
        uint8_t crc = 0xff;
        size_t i, j;
        for (i = start; i < end; i++) {
            crc ^= data[i];
            for (j = 0; j < 8; j++) {
                if ((crc & 0x80) != 0)
                    crc = (uint8_t)((crc << 1) ^ poly);
                else
                    crc <<= 1;
            }
        }
        return crc;
    }

};