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perf(library): streamline search and grouped counts

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zarzet
2026-07-15 22:16:10 +07:00
parent 6f566a9f03
commit 79bb3214ae
3 changed files with 120 additions and 68 deletions
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lib/services/library_database.dart
+73 -58
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@@ -838,52 +838,75 @@ class LibraryDatabase {
Future<QueueLibraryCounts> getQueueCounts(QueueLibraryDbQuery request) async {
final db = await database;
await _ensureHistoryAttached(db);
final parts = <String>[];
final args = <Object?>[];
final allArgs = <Object?>[];
final allSql = _queueTrackUnionSql(
QueueLibraryDbQuery(
limit: request.limit,
offset: request.offset,
filterMode: 'all',
searchQuery: request.searchQuery,
source: request.source,
quality: request.quality,
format: request.format,
metadata: request.metadata,
sortMode: request.sortMode,
includeLocal: request.includeLocal,
),
allArgs,
);
final singleArgs = <Object?>[];
final singleSql = _queueTrackUnionSql(
QueueLibraryDbQuery(
limit: request.limit,
offset: request.offset,
filterMode: 'singles',
searchQuery: request.searchQuery,
source: request.source,
quality: request.quality,
format: request.format,
metadata: request.metadata,
sortMode: request.sortMode,
includeLocal: request.includeLocal,
),
singleArgs,
);
if (request.source != 'local') {
final where = <String>[];
_appendQueueHistoryFilters(where, args, request);
parts.add('''
SELECT
COUNT(*) AS all_count,
COUNT(DISTINCT CASE WHEN grouped.track_count > 1 THEN h.album_key END) AS album_count,
COALESCE(SUM(CASE WHEN grouped.track_count = 1 THEN 1 ELSE 0 END), 0) AS single_count
FROM history_db.history h
JOIN (
SELECT album_key, COUNT(*) AS track_count
FROM history_db.history
GROUP BY album_key
) grouped ON grouped.album_key = h.album_key
${where.isEmpty ? '' : 'WHERE ${where.join(' AND ')}'}
''');
}
final albumArgs = <Object?>[];
final albumSql = _queueAlbumUnionSql(request, albumArgs);
if (request.includeLocal && request.source != 'downloaded') {
final where = <String>[
'''
NOT EXISTS (
SELECT 1
FROM library_path_keys lpk
JOIN history_db.history_path_keys hpk ON hpk.path_key = lpk.path_key
WHERE lpk.item_id = l.id
)
''',
];
_appendQueueLocalFilters(where, args, request);
parts.add('''
SELECT
COUNT(*) AS all_count,
COUNT(DISTINCT CASE WHEN grouped.track_count > 1 THEN l.album_key END) AS album_count,
COALESCE(SUM(CASE WHEN grouped.track_count = 1 THEN 1 ELSE 0 END), 0) AS single_count
FROM library l
JOIN (
SELECT album_key, COUNT(*) AS track_count
FROM library candidate
WHERE NOT EXISTS (
SELECT 1
FROM library_path_keys lpk
JOIN history_db.history_path_keys hpk ON hpk.path_key = lpk.path_key
WHERE lpk.item_id = candidate.id
)
GROUP BY album_key
) grouped ON grouped.album_key = l.album_key
WHERE ${where.join(' AND ')}
''');
}
final rows = await db.rawQuery(
'''
if (parts.isEmpty) {
return const QueueLibraryCounts(
allTrackCount: 0,
albumCount: 0,
singleTrackCount: 0,
);
}
final rows = await db.rawQuery('''
SELECT
(SELECT COUNT(*) FROM ($allSql)) AS all_count,
(SELECT COUNT(*) FROM ($singleSql)) AS single_count,
(SELECT COUNT(*) FROM ($albumSql)) AS album_count
''',
[...allArgs, ...singleArgs, ...albumArgs],
);
COALESCE(SUM(all_count), 0) AS all_count,
COALESCE(SUM(single_count), 0) AS single_count,
COALESCE(SUM(album_count), 0) AS album_count
FROM (${parts.join(' UNION ALL ')})
''', args);
final row = rows.isNotEmpty ? rows.first : const <String, Object?>{};
return QueueLibraryCounts(
@@ -949,11 +972,10 @@ class LibraryDatabase {
_appendQueueHistoryFilters(where, args, request);
if (request.filterMode == 'singles') {
where.add('''
LOWER(h.album_name) || '|' || LOWER(COALESCE(h.album_artist, h.artist_name))
IN (
SELECT LOWER(album_name) || '|' || LOWER(COALESCE(album_artist, artist_name))
h.album_key IN (
SELECT album_key
FROM history_db.history
GROUP BY LOWER(album_name), LOWER(COALESCE(album_artist, artist_name))
GROUP BY album_key
HAVING COUNT(*) = 1
)
''');
@@ -1158,14 +1180,14 @@ class LibraryDatabase {
FROM history_db.history h
JOIN (
SELECT
LOWER(album_name) || '|' || LOWER(COALESCE(album_artist, artist_name)) AS album_key,
album_key,
COUNT(*) AS track_count,
MAX(CAST(strftime('%s', downloaded_at) AS INTEGER) * 1000) AS latest_added
FROM history_db.history
GROUP BY LOWER(album_name), LOWER(COALESCE(album_artist, artist_name))
GROUP BY album_key
HAVING COUNT(*) > 1
) c
ON c.album_key = LOWER(h.album_name) || '|' || LOWER(COALESCE(h.album_artist, h.artist_name))
ON c.album_key = h.album_key
${where.isEmpty ? '' : 'WHERE ${where.join(' AND ')}'}
GROUP BY c.album_key
''');
@@ -1249,15 +1271,8 @@ class LibraryDatabase {
final query = normalizeLookupText(request.searchQuery);
if (query.isNotEmpty) {
final like = '%${_escapeLikePattern(query)}%';
where.add('''
(
LOWER(h.track_name) LIKE ? ESCAPE '\\' OR
LOWER(h.artist_name) LIKE ? ESCAPE '\\' OR
LOWER(h.album_name) LIKE ? ESCAPE '\\' OR
LOWER(COALESCE(h.album_artist, '')) LIKE ? ESCAPE '\\'
)
''');
args.addAll([like, like, like, like]);
where.add("h.search_text LIKE ? ESCAPE '\\'");
args.add(like);
}
_appendQueueCommonFilters(
where,