Files/ComputerAssignments/CA1/code/include/CPS4042/Protocols/Protocol.h

#ifndef PROTOCOL_H
#define PROTOCOL_H

#include <CPS4042/Units/Byte.h>
#include <queue>

namespace Protocols
{

template <typename Gpio>
class AbstractProtocol
{
public:
    AbstractProtocol() = default;
    virtual ~AbstractProtocol() = default;        // <-- add this to allow deletion

    virtual void run(Gpio& gpio) = 0;
    virtual void write(Byte byte) = 0;
    virtual Byte read() = 0;

    bool isDataAvailable() const { return !m_buffer.empty(); }
    size_t bufferSize() const { return m_buffer.size(); }   // <-- helper added

protected:
    std::queue<Byte> m_buffer;
};

template <typename BoardType, typename Gpio>
class AbstractI2C : public AbstractProtocol<Gpio>
{
public:
    using BoardPtr = std::remove_pointer_t<boost::remove_cv_ref_t<BoardType>>*;
    explicit AbstractI2C(BoardPtr board) : m_board(board) {}
    virtual void init(Byte address) = 0;

protected:
    BoardPtr m_board;
};

template <typename BoardType, typename Gpio>
class AbstractUsart : public AbstractProtocol<Gpio>
{
public:
    using BoardPtr = std::remove_pointer_t<boost::remove_cv_ref_t<BoardType>>*;
    explicit AbstractUsart(BoardPtr board) : m_board(board) {}

protected:
    BoardPtr m_board;
};

} // namespace Protocols
#endif