//
//  ZX8081.hpp
//  Clock Signal
//
//  Created by Thomas Harte on 07/06/2017.
//  Copyright 2017 Thomas Harte. All rights reserved.
//

#pragma once

#include "TapeParser.hpp"

#include "../../Data/ZX8081.hpp"

#include <string>
#include <vector>
#include <cstdint>

namespace Storage::Tape::ZX8081 {

enum class WaveType {
	Pulse, Gap, LongGap, Unrecognised
};

enum class SymbolType {
	One, Zero, FileGap, Unrecognised
};

class Parser: public Storage::Tape::PulseClassificationParser<WaveType, SymbolType> {
public:
	Parser();

	/*!
		Reads and combines the next eight bits. Returns -1 if any errors are encountered.
	*/
	int get_next_byte(const std::shared_ptr<Storage::Tape::Tape> &);

	/*!
		Waits for a long gap, reads all the bytes between that and the next long gap, then
		attempts to parse those as a valid ZX80 or ZX81 file. If no file is found,
		returns nullptr.
	*/
	std::shared_ptr<Storage::Data::ZX8081::File> get_next_file(const std::shared_ptr<Storage::Tape::Tape> &);

private:
	bool pulse_was_high_;
	Time pulse_time_;
	void post_pulse();

	void process_pulse(const Storage::Tape::Pulse &pulse) override;
	void mark_end() override;
	void inspect_waves(const std::vector<WaveType> &waves) override;

	std::shared_ptr<std::vector<uint8_t>> get_next_file_data(const std::shared_ptr<Storage::Tape::Tape> &);
};

}