CLK/Storage/MassStorage/Formats/HFV.hpp

//
//  HFV.hpp
//  Clock Signal
//
//  Created by Thomas Harte on 25/08/2019.
//  Copyright © 2019 Thomas Harte. All rights reserved.
//

#ifndef HFV_hpp
#define HFV_hpp

#include "../MassStorageDevice.hpp"
#include "../../FileHolder.hpp"
#include "../Encodings/MacintoshVolume.hpp"

#include <vector>
#include <map>

namespace Storage::MassStorage {

/*!
	Provides a @c MassStorageDevice containing an HFV image, which is a sector dump of
	the HFS volume of a Macintosh drive that is not the correct size to be a floppy disk.
*/
class HFV: public MassStorageDevice, public Encodings::Macintosh::Volume {
	public:
		/*!
			Constructs an HFV with the contents of the file named @c file_name.
			Raises an exception if the file name doesn't appear to identify a valid
			Macintosh mass storage image.
		*/
		HFV(const std::string &file_name);

	private:
		FileHolder file_;
		Encodings::Macintosh::Mapper mapper_;

		/* MassStorageDevices overrides. */
		size_t get_block_size() final;
		size_t get_number_of_blocks() final;
		std::vector<uint8_t> get_block(size_t address) final;
		void set_block(size_t address, const std::vector<uint8_t> &) final;

		/* Encodings::Macintosh::Volume overrides. */
		void set_drive_type(Encodings::Macintosh::DriveType) final;

		std::map<size_t, std::vector<uint8_t>> writes_;
};

}

#endif /* HFV_hpp */