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/*
* Copyright 2023 jacqueline <me@jacqueline.id.au>
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#pragma once
#include <cstddef>
#include <cstdint>
#include <memory>
#include "codec.hpp"
#include "ff.h"
#include "audio/audio_source.hpp"
namespace audio {
/*
* Handles coordination with a persistent background task to asynchronously
* read files from disk into a StreamBuffer.
*/
class FatfsSource : public codecs::IStream {
public:
FatfsSource(codecs::StreamType, std::unique_ptr<FIL> file);
~FatfsSource();
auto Read(std::span<std::byte> dest) -> ssize_t override;
auto CanSeek() -> bool override;
auto SeekTo(int64_t destination, SeekFrom from) -> void override;
auto CurrentPosition() -> int64_t override;
auto Size() -> std::optional<int64_t> override;
FatfsSource(const FatfsSource&) = delete;
FatfsSource& operator=(const FatfsSource&) = delete;
private:
std::unique_ptr<FIL> file_;
};
} // namespace audio
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