printer.h

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#ifndef SEMF_COMMUNICATION_ESH_PRINTER_H_
#define SEMF_COMMUNICATION_ESH_PRINTER_H_
 
#include <semf/communication/uarthardware.h>
#include <semf/utils/core/error.h>
#include <semf/utils/core/signals/signal.h>
#include <semf/utils/core/signals/slot.h>
#include <string_view>
 
namespace semf::esh
{
class Printer
{
public:
    enum class ErrorCode : uint8_t
    {
        Print_IsBusy = 0
    };
    explicit Printer(semf::UartHardware& uart);
    Printer(const Printer& other) = delete;
    virtual ~Printer() = default;
    void print(char character, size_t count);
    void print(std::string_view text, size_t count = 1);
    void readCharacter();
    bool isBusy() const;
    SEMF_SIGNAL(dataWritten);
    SEMF_SIGNAL(dataAvailable, char);
    SEMF_SIGNAL(error, Error);
 
private:
    void onCharWritten();
    void onStringWritten();
    void onDataAvailable();
    void onDataWritten();
 
    semf::UartHardware& m_uart;
    char m_char;
    std::string_view m_string;
    size_t m_count = 0;
    bool m_busy = false;
    uint8_t m_availableChar;
    SEMF_SLOT(m_onDataAvailableSlot, Printer, *this, onDataAvailable);
    SEMF_SLOT(m_onCharWrittenSlot, Printer, *this, onCharWritten);
    SEMF_SLOT(m_onStringWrittenSlot, Printer, *this, onStringWritten);
    SEMF_SLOT(m_uartErrorSlot, Signal<Error>, error, emitSignal, Error);
    static constexpr Error::ClassID kSemfClassId = Error::ClassID::Printer;
};
}  // namespace semf::esh
#endif  // SEMF_COMMUNICATION_ESH_PRINTER_H_