提取cover服务

internal/service/cover_svc.go

@@ -0,0 +1,54 @@
+package service
+
+import (
+	"butterfliu/config"
+	"butterfliu/internal/model"
+	"butterfliu/internal/repository"
+	"butterfliu/internal/util"
+	"errors"
+	"path"
+	"strconv"
+)
+
+type CoverService struct {
+	mediaRepo *repository.MediaRepository
+	songRepo  *repository.SongRepository
+	albumRepo *repository.AlbumRepository
+}
+
+func NewCoverService(mediaRepo *repository.MediaRepository, songRepo *repository.SongRepository, albumRepo *repository.AlbumRepository) *CoverService {
+	return &CoverService{
+		mediaRepo: mediaRepo,
+		songRepo:  songRepo,
+		albumRepo: albumRepo,
+	}
+}
+
+func (s *CoverService) getMediaFile(id int) (model.MediaFile, error) {
+	song, err := s.songRepo.Get(id)
+	if err != nil {
+		return model.MediaFile{}, err
+	}
+	return s.mediaRepo.Get(song.MediaFileID)
+}
+
+func (s *CoverService) GetSongCover(id int) (string, error) {
+	file, err := s.getMediaFile(id)
+	if err != nil {
+		return "", err
+	}
+	util.ExtractCover(file.Path, id)
+	conf := config.LoadConfig()
+	return path.Join(conf.GetCachePath("cover"), strconv.Itoa(id)+".jpg"), nil
+}
+
+func (s *CoverService) GetAlbumCover(id int) (string, error) {
+	songs, err := s.albumRepo.GetSongIDs(id)
+	if err != nil {
+		return "", err
+	}
+	if len(songs) == 0 {
+		return "", errors.New("no songs found for album")
+	}
+	return s.GetSongCover(songs[0])
+}

internal/service/library.go

@@ -1,16 +1,13 @@
 package service
 
 import (
-	"butterfliu/config"
 	"butterfliu/internal/model"
 	"butterfliu/internal/repository"
 	"butterfliu/internal/scanner"
 	"errors"
 	"fmt"
 	"log"
-	"path"
 	"path/filepath"
-	"strconv"
 	"strings"
 )
 
@@ -23,7 +20,7 @@ type ScanReport struct {
 }
 
 type LibraryService struct {
-	libRepo   *repository.LibraryRepository
+	libRepo    *repository.LibraryRepository
 	artistRepo *repository.ArtistRepository
 	albumRepo  *repository.AlbumRepository
 	songRepo   *repository.SongRepository
@@ -169,18 +166,6 @@ func (s *LibraryService) GetAlbum(id int) (model.AlbumDetail, error) {
 	}, nil
 }
 
-func (s *LibraryService) GetAlbumCover(id int) (string, error) {
-	songs, err := s.albumRepo.GetSongIDs(id)
-	if err != nil {
-		return "", err
-	}
-	if len(songs) == 0 {
-		return "", errors.New("no songs found for album")
-	}
-	conf := config.LoadConfig()
-	return path.Join(conf.GetCachePath("cover"), strconv.Itoa(songs[0])+".jpg"), nil
-}
-
 func (s *LibraryService) Scan(id int) (*ScanReport, error) {
 	lib, err := s.libRepo.GetByID(id)
 	if err != nil {

internal/service/song_svc.go

@@ -1,12 +1,8 @@
 package service
 
 import (
-	"butterfliu/config"
 	"butterfliu/internal/model"
 	"butterfliu/internal/repository"
-	"butterfliu/internal/util"
-	"path"
-	"strconv"
 )
 
 type SongService struct {
@@ -37,13 +33,3 @@ func (s *SongService) GetMediaFile(id int) (model.MediaFile, error) {
 	}
 	return s.mediaRepo.Get(song.MediaFileID)
 }
-
-func (s *SongService) GetCover(id int) (string, error) {
-	file, err := s.GetMediaFile(id)
-	if err != nil {
-		return "", err
-	}
-	util.ExtractCover(file.Path, id)
-	conf := config.LoadConfig()
-	return path.Join(conf.GetCachePath("cover"), strconv.Itoa(id)+".jpg"), nil
-}