#ifndef FILEBASE_HH

#define FILEBASE_HH

#include "zstring_view.hh"

#include <cstdint>

#include <ctime>

#include <span>

namespace openmsx {

class MappedFileImpl;

class FileBase

{

public:

	virtual ~FileBase() = default;

	virtual void read(std::span<uint8_t> buffer) = 0;

	virtual void write(std::span<const uint8_t> buffer) = 0;

	[[nodiscard]] virtual MappedFileImpl mmap(size_t extra, bool is_const) = 0;

	[[nodiscard]] virtual size_t getSize() = 0;

	virtual void seek(size_t pos) = 0;

	[[nodiscard]] virtual size_t getPos() = 0;

	virtual void truncate(size_t size);

	virtual void flush() = 0;

	[[nodiscard]] virtual bool isLocalFile() const;

	[[nodiscard]] virtual zstring_view getOriginalName();

	[[nodiscard]] virtual bool isReadOnly() const = 0;

	[[nodiscard]] virtual time_t getModificationDate() = 0;

};

} // namespace openmsx

#endif