100 lines
2.3 KiB
C
100 lines
2.3 KiB
C
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/**
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* SPDX-FileCopyrightText: 2023 Krut Patel <kroot.patel@gmail.com>
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*
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* SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
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*/
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#ifndef ALBUMARTCACHE_H
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#define ALBUMARTCACHE_H
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#include "networkpacket.h"
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#include <QCache>
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#include <QDir>
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#include <QObject>
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#include <QReadWriteLock>
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#include <QSharedPointer>
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#include <optional>
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class MprisRemotePlugin;
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/**
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* Wrapper that automatically deletes the file from disk when destroyed.
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*/
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class LocalFile
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{
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public:
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QUrl localPath;
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explicit LocalFile(QUrl localPath)
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: localPath(std::move(localPath))
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{
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}
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~LocalFile()
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{
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// delete the file from disk
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// TODO: Log warning if this failed
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QFile::remove(localPath.toLocalFile());
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}
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};
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class AlbumArtCache : public QObject
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{
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Q_OBJECT
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AlbumArtCache();
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~AlbumArtCache() override;
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public:
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struct IndexItem {
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enum Status {
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FETCHING,
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SUCCESS,
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FAILED,
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};
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Status fetchStatus;
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QSharedPointer<LocalFile> file;
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explicit IndexItem(QUrl localPath)
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: fetchStatus(Status::SUCCESS)
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, file(new LocalFile{std::move(localPath)})
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{
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}
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explicit IndexItem(Status fetchStatus)
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: fetchStatus(fetchStatus)
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, file(nullptr)
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{
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// Need localPath in this case
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Q_ASSERT(fetchStatus != Status::SUCCESS);
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}
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};
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static AlbumArtCache *instance();
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/**
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* @brief Get the Album Art object. Called from mpris media player to be sent to dbus.
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*
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* @return IndexItem Current status of the art file.
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*/
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static IndexItem getAlbumArt(const QString &remoteUrl, MprisRemotePlugin *plugin, const QString &player);
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/**
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* @brief Callback for when plugin receives a packet with album art.
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* Can't use slot since NetworkPacket isn't a registered type.
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*/
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void handleAlbumArt(const NetworkPacket &np);
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// called by handleAlbumArt when the album art is fetched and stored to disk
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Q_SIGNALS:
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void albumArtFetched(const QString &player, const QString &remoteUrl, QSharedPointer<LocalFile> localPath);
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private:
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using Index = QCache<QString, IndexItem>;
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QDir m_cacheDir;
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Index m_cachedFiles;
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QReadWriteLock m_cacheLock;
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};
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#endif // ALBUMARTCACHE_H
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