Added embedded/external lyrics support: parsing + indexing, ref #379
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emeric
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/*
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* Copyright (C) 2024 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 "database/TrackLyrics.hpp"
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#include <Wt/Dbo/SqlTraits.h>
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#include <Wt/Dbo/WtSqlTraits.h>
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#include "database/Artist.hpp"
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#include "database/Directory.hpp"
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#include "database/Release.hpp"
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#include "database/Session.hpp"
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#include "database/Track.hpp"
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#include "IdTypeTraits.hpp"
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#include "PathTraits.hpp"
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#include "Utils.hpp"
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namespace lms::db
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{
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TrackLyrics::pointer TrackLyrics::create(Session& session)
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{
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return session.getDboSession()->add(std::unique_ptr<TrackLyrics>{ new TrackLyrics{} });
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}
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std::size_t TrackLyrics::getCount(Session& session)
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{
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session.checkReadTransaction();
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return utils::fetchQuerySingleResult(session.getDboSession()->query<int>("SELECT COUNT(*) FROM track_lyrics"));
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}
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std::size_t TrackLyrics::getExternalLyricsCount(Session& session)
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{
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session.checkReadTransaction();
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return utils::fetchQuerySingleResult(session.getDboSession()->query<int>("SELECT COUNT(t_lrc.id) FROM track_lyrics t_lrc").where("t_lrc.absolute_file_path <> ''"));
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}
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TrackLyrics::pointer TrackLyrics::find(Session& session, TrackLyricsId id)
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{
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session.checkReadTransaction();
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return utils::fetchQuerySingleResult(session.getDboSession()->query<Wt::Dbo::ptr<TrackLyrics>>("SELECT t_lrc from track_lyrics t_lrc").where("t_lrc.id = ?").bind(id));
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}
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TrackLyrics::pointer TrackLyrics::find(Session& session, const std::filesystem::path& path)
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{
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session.checkReadTransaction();
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return utils::fetchQuerySingleResult(session.getDboSession()->query<Wt::Dbo::ptr<TrackLyrics>>("SELECT t_lrc from track_lyrics t_lrc").where("t_lrc.absolute_file_path = ?").bind(path));
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}
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void TrackLyrics::find(Session& session, TrackId trackId, const std::function<void(const TrackLyrics::pointer&)>& func)
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{
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session.checkReadTransaction();
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auto query{ session.getDboSession()->query<Wt::Dbo::ptr<TrackLyrics>>("SELECT t_lrc from track_lyrics t_lrc").where("t_lrc.track_id = ?").bind(trackId) };
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utils::forEachQueryResult(query, [&](const TrackLyrics::pointer& lyrics) {
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func(lyrics);
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});
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}
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void TrackLyrics::find(Session& session, TrackLyricsId& lastRetrievedId, std::size_t count, const std::function<void(const TrackLyrics::pointer&)>& func)
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{
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session.checkReadTransaction();
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auto query{ session.getDboSession()->query<Wt::Dbo::ptr<TrackLyrics>>("SELECT t_lrc from track_lyrics t_lrc").orderBy("t_lrc.id").where("t_lrc.id > ?").bind(lastRetrievedId).limit(static_cast<int>(count)) };
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utils::forEachQueryResult(query, [&](const TrackLyrics::pointer& lyrics) {
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func(lyrics);
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lastRetrievedId = lyrics->getId();
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});
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}
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RangeResults<TrackLyricsId> TrackLyrics::findOrphanIds(Session& session, std::optional<Range> range)
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{
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session.checkReadTransaction();
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auto query{ session.getDboSession()->query<TrackLyricsId>("select t_lrc.id from track_lyrics t_lrc") };
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query.leftJoin("track t ON t_lrc.track_id = t.id");
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query.where("t.id IS NULL");
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return utils::execRangeQuery<TrackLyricsId>(query, range);
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}
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TrackLyrics::SynchronizedLines TrackLyrics::getSynchronizedLines() const
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{
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SynchronizedLines synchronizedLines;
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assert(_synchronized);
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{
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Wt::Json::Object root;
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Wt::Json::parse(_lines, root);
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assert(root.type("lines") == Wt::Json::Type::Array);
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const Wt::Json::Array& linesArray = root.get("lines");
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for (const Wt::Json::Value& line : linesArray)
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{
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assert(line.type() == Wt::Json::Type::Object);
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const Wt::Json::Object& entry = line;
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std::chrono::milliseconds timestamp{ entry.get("timestamp") };
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std::string lineText{ static_cast<std::string>(entry.get("value")) };
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synchronizedLines.emplace(timestamp, std::move(lineText));
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}
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}
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return synchronizedLines;
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}
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std::vector<std::string> TrackLyrics::getUnsynchronizedLines() const
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{
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std::vector<std::string> unsynchronizedLines;
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assert(!_synchronized);
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{
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Wt::Json::Object root;
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Wt::Json::parse(_lines, root);
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assert(root.type("lines") == Wt::Json::Type::Array);
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const Wt::Json::Array& linesArray = root.get("lines");
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for (const Wt::Json::Value& line : linesArray)
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unsynchronizedLines.push_back(line.toString());
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}
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return unsynchronizedLines;
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}
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void TrackLyrics::setAbsoluteFilePath(const std::filesystem::path& p)
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{
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assert(p.is_absolute());
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_fileAbsolutePath = p;
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_fileStem = p.stem().string();
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}
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void TrackLyrics::setSynchronizedLines(const SynchronizedLines& synchronizedLines)
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{
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Wt::Json::Object root;
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Wt::Json::Array lines;
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for (const auto& [timestamp, lineText] : synchronizedLines)
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{
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Wt::Json::Object line;
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line["timestamp"] = Wt::Json::Value{ timestamp.count() };
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line["value"] = Wt::Json::Value{ lineText };
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lines.push_back(std::move(line));
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}
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root["lines"] = std::move(lines);
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_synchronized = true;
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_lines = Wt::Json::serialize(root);
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}
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void TrackLyrics::setUnsynchronizedLines(std::span<const std::string> unsynchronizedLines)
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{
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Wt::Json::Object root;
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Wt::Json::Array lines;
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for (const auto& lineText : unsynchronizedLines)
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lines.push_back(Wt::Json::Value{ lineText });
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root["lines"] = std::move(lines);
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_synchronized = false;
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_lines = Wt::Json::serialize(root);
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}
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} // namespace lms::db
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