#ifndef MSXMIDI_HH

#define MSXMIDI_HH

#include "I8251.hh"

#include "I8254.hh"

#include "MidiInConnector.hh"

#include "MidiOutConnector.hh"

#include "IRQHelper.hh"

#include "MSXDevice.hh"

namespace openmsx {

class MSXMidi final : public MSXDevice, public MidiInConnector

{

public:

	explicit MSXMidi(const DeviceConfig& config);

	~MSXMidi() override;

	void reset(EmuTime time) override;

	[[nodiscard]] uint8_t readIO(uint16_t port, EmuTime time) override;

	[[nodiscard]] uint8_t peekIO(uint16_t port, EmuTime time) const override;

	void writeIO(uint16_t port, uint8_t value, EmuTime time) override;

	// MidiInConnector

	[[nodiscard]] bool ready() override;

	[[nodiscard]] bool acceptsData() override;

	void setDataBits(DataBits bits) override;

	void setStopBits(StopBits bits) override;

	void setParityBit(bool enable, Parity parity) override;

	void recvByte(uint8_t value, EmuTime time) override;

	template<typename Archive>

	void serialize(Archive& ar, unsigned version);

private:

	void setTimerIRQ(bool status, EmuTime time);

	void enableTimerIRQ(bool enabled, EmuTime time);

	void updateEdgeEvents(EmuTime time);

	void setRxRDYIRQ(bool status);

	void enableRxRDYIRQ(bool enabled);

	void registerIOports(uint8_t value);

private:

	struct Counter0 final : ClockPinListener {

		void signal(ClockPin& pin, EmuTime time) override;

		void signalPosEdge(ClockPin& pin, EmuTime time) override;

	} cntr0; // counter 0 clock pin

	struct Counter2 final : ClockPinListener {

		void signal(ClockPin& pin, EmuTime time) override;

		void signalPosEdge(ClockPin& pin, EmuTime time) override;

	} cntr2; // counter 2 clock pin

	struct Interface final : I8251Interface {

		void setRxRDY(bool status, EmuTime time) override;

		void setDTR(bool status, EmuTime time) override;

		void setRTS(bool status, EmuTime time) override;

		[[nodiscard]] bool getDSR(EmuTime time) override;

		[[nodiscard]] bool getCTS(EmuTime time) override;

		void setDataBits(DataBits bits) override;

		void setStopBits(StopBits bits) override;

		void setParityBit(bool enable, Parity parity) override;

		void recvByte(uint8_t value, EmuTime time) override;

		void signal(EmuTime time) override;

	} interface;

	IRQHelper timerIRQ;

	IRQHelper rxrdyIRQ;

	bool timerIRQlatch = false;

	bool timerIRQenabled = false;

	bool rxrdyIRQlatch = false;

	bool rxrdyIRQenabled = false;

	const bool isExternalMSXMIDI;

	bool isEnabled; /* EN bit */

	bool isLimitedTo8251 = true; /* inverse of E8 bit */

	// must come last

	MidiOutConnector outConnector;

	I8251 i8251;

	I8254 i8254;

};

SERIALIZE_CLASS_VERSION(MSXMidi, 2);

} // namespace openmsx

#endif