// This class implements the mapping of the PPI (8255) into the SVI machine.

#ifndef SVIPPI_HH

#define SVIPPI_HH

#include "I8255.hh"

#include "I8255Interface.hh"

#include "KeyClick.hh"

#include "Keyboard.hh"

#include "MSXDevice.hh"

#include <array>

namespace openmsx {

class CassettePortInterface;

class JoystickPortIf;

class SVIPPI final : public MSXDevice, public I8255Interface

{

public:

	explicit SVIPPI(const DeviceConfig& config);

	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;

	template<typename Archive>

	void serialize(Archive& ar, unsigned version);

private:

	// I8255Interface

	[[nodiscard]] uint8_t readA (EmuTime time) override;

	[[nodiscard]] uint8_t readB (EmuTime time) override;

	[[nodiscard]] uint4_t readC0(EmuTime time) override;

	[[nodiscard]] uint4_t readC1(EmuTime time) override;

	[[nodiscard]] uint8_t peekA (EmuTime time) const override;

	[[nodiscard]] uint8_t peekB (EmuTime time) const override;

	[[nodiscard]] uint4_t peekC0(EmuTime time) const override;

	[[nodiscard]] uint4_t peekC1(EmuTime time) const override;

	void writeA (uint8_t value, EmuTime time) override;

	void writeB (uint8_t value, EmuTime time) override;

	void writeC0(uint4_t value, EmuTime time) override;

	void writeC1(uint4_t value, EmuTime time) override;

private:

	CassettePortInterface& cassettePort;

	I8255 i8255;

	KeyClick click;

	Keyboard keyboard;

	std::array<JoystickPortIf*, 2> ports;

	uint4_t prevBits = 15;

	uint4_t selectedRow = 0;

};

} // namespace openmsx

#endif