dynamic_i_bus_parser.hpp

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#pragma once
#include "cool_serial/byte_queue.hpp"
 
#include "ichannel_data_found_listener.hpp"
#include "i_bus_start_of_frame_search.hpp"
#include "cool_serial/dynamic_parser/dynamic_segment_extractor.hpp"
 
#include <functional>
 
namespace fang::communication::ibus
{
class DynamicParser : public coolSerial::StartOfFrameFoundListener, public coolSerial::SegmentFoundListener
{
public:
    DynamicParser(coolSerial::ByteQueue& byteBuffer, IChannelDataFoundListener& listener);
 
    void update()
    {
        state_.get().update();
    }
private:
    class State
    {
    public:
        virtual void update() = 0;
    };
 
    class StartOfFrameSearch : public State, public ibus::StartOfFrameSearch 
    {
    public:
        using ibus::StartOfFrameSearch::StartOfFrameSearch;
        void update() override
        {
            ibus::StartOfFrameSearch::update();
        }
    };
 
    class SegmentExtract : public State, public coolSerial::DynamicSegmentExtractor
    {
    public:
        using DynamicSegmentExtractor::DynamicSegmentExtractor;
        void update() override
        {
            DynamicSegmentExtractor::update();
        }
    };
 
    IChannelDataFoundListener& channelDataFoundListener_;
    StartOfFrameSearch startOfFrameSearch_;
    // This extracts both the channel data and the associated checksum
    SegmentExtract segmentExtract_;
 
    std::reference_wrapper<State> state_{startOfFrameSearch_};
 
    // State change logic
    void startOfFrameFound() override;
    void segmentFound(const coolSerial::Bytes& bytes) override;
 
    uint16_t extractChecksumFromCombinedSegment(const coolSerial::Bytes& bytes);
};
}