95 lines
2.9 KiB
C++
95 lines
2.9 KiB
C++
/*
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* Copyright (C) 2023 Emeric Poupon
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*
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* This file is part of LMS.
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*
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* LMS is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* LMS is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LMS. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "ScanStepUpdateLibraryFields.hpp"
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#include "database/IDb.hpp"
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#include "database/Session.hpp"
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#include "database/objects/Directory.hpp"
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#include "database/objects/MediaLibrary.hpp"
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#include "MediaLibraryInfo.hpp"
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#include "ScanContext.hpp"
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#include "ScannerSettings.hpp"
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namespace lms::scanner
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{
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bool ScanStepUpdateLibraryFields::needProcess([[maybe_unused]] const ScanContext& context) const
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{
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// Fast enough when nothing to do
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return true;
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}
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void ScanStepUpdateLibraryFields::process(ScanContext& context)
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{
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processDirectories(context);
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}
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void ScanStepUpdateLibraryFields::processDirectories(ScanContext& context)
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{
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for (const MediaLibraryInfo& mediaLibrary : _settings.mediaLibraries)
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{
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if (_abortScan)
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break;
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processDirectory(context, mediaLibrary);
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}
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}
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void ScanStepUpdateLibraryFields::processDirectory(ScanContext& context, const MediaLibraryInfo& mediaLibrary)
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{
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db::Session& session{ _db.getTLSSession() };
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constexpr std::size_t batchSize = 100;
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std::vector<db::DirectoryId> entries;
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while (!_abortScan)
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{
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{
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auto transaction{ session.createReadTransaction() };
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entries = db::Directory::findMismatchedLibrary(session, db::Range{ 0, batchSize }, mediaLibrary.rootDirectory, mediaLibrary.id);
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};
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if (entries.empty())
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break;
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{
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auto transaction{ session.createWriteTransaction() };
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db::MediaLibrary::pointer library{ db::MediaLibrary::find(session, mediaLibrary.id) };
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if (!library) // may be legit
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break;
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for (const db::DirectoryId directoryId : entries)
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{
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if (_abortScan)
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break;
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db::Directory::pointer directory{ db::Directory::find(session, directoryId) };
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directory.modify()->setMediaLibrary(library);
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}
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}
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context.currentStepStats.processedElems += entries.size();
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_progressCallback(context.currentStepStats);
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}
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}
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} // namespace lms::scanner
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