#pragma once
#include "IR_config.h"

//#define IRDEBUG

#ifdef IRDEBUG 
#define wrHigh 3    // Запись HIGH инициирована                     // green
#define wrLow 4     // Запись LOW инициирована                      // blue
#define writeOp 6  // Операция записи, 1 пульс для 0 и 2 для 1     // orange
// Исправленные ошибки                                              // purle
// 1 пульс: fix 
#define errOut 5          
#endif

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

#define riseTime riseSyncTime  //* bitTime */  893U        // TODO: Должно высчитываться медианой
#define riseTolerance tolerance /* 250U */   // погрешность
#define riseTimeMax (riseTime + riseTolerance)
#define riseTimeMin (riseTime - riseTolerance)
#define aroundRise(t) (riseTimeMin < t && t < riseTimeMax)
#define IR_timeout ((riseTimeMax * 8) + syncBits +1)    // us // таймаут в 8 data + 3 sync + 1

class IR_Encoder;
class IR_Decoder : private IR_FOX {
    friend IR_Encoder;
public:
    uint16_t addrSelf;

    IR_Decoder(uint16_t addr, IR_Encoder* encPair = nullptr);
    ~IR_Decoder();

    // @brief Для прерывания
    void isr();


    // @return Буффер переполнился 
    bool isOverflow() { return isBufferOverflow; };

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

    class InputData {
        friend IR_Decoder;
    protected:
        bool _isAvaliable = false;
        uint8_t _msgType;
        uint16_t _addrFrom = 0;
        uint16_t _addrTo = 0;
        uint8_t* _data = nullptr;
        uint8_t _dataRawSize = 0;
        uint16_t _crcPackVal;
        uint16_t _crcCalcVal;
        uint16_t _errCount;

        void _set(uint8_t* ptr, uint8_t len, uint16_t crc, uint16_t err) {
            _crcCalcVal = crc;
            _dataRawSize = len;
            _errCount = err;
            if (_data != nullptr) { delete _data; _data = nullptr; }
            _data = new uint8_t[len];
            for (uint8_t i = 0; i < len; i++) { _data[i] = ptr[i]; }
            _msgType = _data[0];
            ini();
            _isAvaliable = true;
        }
    private:
        virtual void ini();

    public:
        bool avaliable() { return _isAvaliable; };
        uint8_t msgInfo() { return _msgType & IR_MASK_MSG_INFO; };
        uint8_t msgType() { return (_msgType >> 5) & IR_MASK_MSG_TYPE; };
        uint8_t msgRAW() { return _msgType; };
        uint16_t errorCount() { return _errCount; };
        uint16_t crcIN() { return _crcPackVal; };
        uint16_t crcCALC() { return _crcCalcVal; };
        void resetAvaliable() { _isAvaliable = false; };
    };

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

    class Data : public InputData {
    public:
        uint16_t addrFrom() { return _addrFrom; };
        uint16_t addrTo() { return _addrTo; };
        uint8_t dataSize() { return _dataRawSize - (msgBytes + addrBytes + addrBytes + crcBytes); };
        uint8_t* data() { return &_data[msgBytes + addrBytes + addrBytes]; };
        uint8_t dataRawSize() { return _dataRawSize; };
        uint8_t* dataRaw() { return _data; };
        bool isNeedAccept() { return ((_msgType >> 5) & IR_MASK_MSG_TYPE) == IR_MSG_DATA_ACCEPT; };
    private:
        void ini() override {
            _addrFrom = (_data[1] << 8) | _data[2];
            _addrTo = (_data[3] << 8) | _data[4];
            _crcPackVal = (_data[_dataRawSize - 2] << 8) | _data[_dataRawSize - 1];
        }

    };

    class Accept : public InputData {
    public:
        uint16_t addrFrom() { return _addrFrom; };

    private:
        void ini() override {
            _addrFrom = (_data[1] << 8) | _data[2];
            _crcPackVal = (_data[3] << 8) | _data[4];
        }
    };

    class Request : public Accept {
    public:
        uint16_t addrTo() { return _addrTo; };
    private:
        void ini() override {
            _addrFrom = (_data[1] << 8) | _data[2];
            _addrTo = (_data[3] << 8) | _data[4];
            _crcPackVal = (_data[5] << 8) | _data[6];
        }
    };

    Data gotData;
    Accept gotAccept;
    Request gotRequest;


private:
    IR_Encoder* encoder;
    bool isPairSending = false;
    bool IsPairSendLOW = false;

    bool isWaitingAccept = false;
    uint16_t addrWaitingFrom = 0;


    uint16_t addrFrom = 0;

    uint16_t riseSyncTime = bitTime;

    volatile bool isRawAvaliable = false;

    volatile bool isMsgAvaliable = false;
    volatile bool isFilterBufferAvaliable = false;

    volatile bool isBufferOverflow = false;

    volatile bool isPreamb = false; // флаг начальной последовости
    bool HIGH_FIRST = true; // порядок приходящих битов

    //Буффер
    const uint8_t bufferRawSize =
        ((bufferBitSizeMax % 8 > 0) ?
            (bufferBitSizeMax / 8) + 1 :
            (bufferBitSizeMax / 8));
    const uint8_t bufferDataSize = dataByteSizeMax; // + crc
    uint8_t* rawBuffer = nullptr;
    uint8_t* dataBuffer = nullptr;

    volatile uint32_t prevRise, prevFall, prevPrevFall, prevPrevRise;
    volatile uint16_t errorCounter = 0;
    volatile int8_t frontCounter = 0;
    volatile int16_t bufBitPos = 0;
    crc_t crcValue = 0;
private:
    uint8_t* getDataBuffer(bool reset = false);
    bool crcCheck(uint8_t len);

    inline void writeToBuffer(bool);
    inline void start_RX();
    void resetAvaliable();

    uint16_t ceil_div(uint16_t, uint16_t);
    //uint16_t sma = 0;
    void SMA(uint16_t);

    //TODO: Сделать функцию медианы
    void medi(uint16_t);


#ifdef IRDEBUG
    inline void errPulse(uint8_t pin, uint8_t count);
    inline void infoPulse(uint8_t pin, uint8_t count);
#endif


};