102 lines
2.9 KiB
JavaScript
102 lines
2.9 KiB
JavaScript
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/**
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* 앨범 서비스
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* 앨범 관련 비즈니스 로직
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*/
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/**
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* 앨범 상세 정보 조회 (트랙, 티저, 컨셉포토 포함)
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* @param {object} db - 데이터베이스 연결
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* @param {object} album - 앨범 기본 정보
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* @returns {object} 상세 정보가 포함된 앨범
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*/
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export async function getAlbumDetails(db, album) {
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const [tracks] = await db.query(
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'SELECT * FROM album_tracks WHERE album_id = ? ORDER BY track_number',
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[album.id]
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);
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album.tracks = tracks;
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const [teasers] = await db.query(
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`SELECT original_url, medium_url, thumb_url, video_url, media_type
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FROM album_teasers WHERE album_id = ? ORDER BY sort_order`,
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[album.id]
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);
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album.teasers = teasers;
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const [photos] = await db.query(
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`SELECT
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p.id, p.original_url, p.medium_url, p.thumb_url, p.photo_type, p.concept_name, p.sort_order,
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p.width, p.height,
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GROUP_CONCAT(m.name ORDER BY m.id SEPARATOR ', ') as members
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FROM album_photos p
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LEFT JOIN album_photo_members pm ON p.id = pm.photo_id
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LEFT JOIN members m ON pm.member_id = m.id
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WHERE p.album_id = ?
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GROUP BY p.id
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ORDER BY p.sort_order`,
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[album.id]
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);
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const conceptPhotos = {};
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for (const photo of photos) {
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const concept = photo.concept_name || 'Default';
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if (!conceptPhotos[concept]) {
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conceptPhotos[concept] = [];
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}
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conceptPhotos[concept].push({
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id: photo.id,
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original_url: photo.original_url,
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medium_url: photo.medium_url,
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thumb_url: photo.thumb_url,
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width: photo.width,
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height: photo.height,
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type: photo.photo_type,
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members: photo.members,
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sortOrder: photo.sort_order,
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});
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}
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album.conceptPhotos = conceptPhotos;
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return album;
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}
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/**
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* 앨범 목록과 트랙 조회 (N+1 최적화)
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* @param {object} db - 데이터베이스 연결
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* @returns {array} 트랙 포함된 앨범 목록
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*/
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export async function getAlbumsWithTracks(db) {
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const [albums] = await db.query(`
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SELECT id, title, folder_name, album_type, album_type_short, release_date,
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cover_original_url, cover_medium_url, cover_thumb_url, description
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FROM albums
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ORDER BY release_date DESC
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`);
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if (albums.length === 0) return albums;
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// 모든 트랙을 한 번에 조회
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const albumIds = albums.map(a => a.id);
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const [allTracks] = await db.query(
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`SELECT id, album_id, track_number, title, is_title_track, duration, lyricist, composer, arranger
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FROM album_tracks WHERE album_id IN (?) ORDER BY album_id, track_number`,
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[albumIds]
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);
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// 앨범 ID별로 트랙 그룹화
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const tracksByAlbum = {};
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for (const track of allTracks) {
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if (!tracksByAlbum[track.album_id]) {
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tracksByAlbum[track.album_id] = [];
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}
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tracksByAlbum[track.album_id].push(track);
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}
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// 각 앨범에 트랙 할당
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for (const album of albums) {
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album.tracks = tracksByAlbum[album.id] || [];
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}
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return albums;
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}
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