HEAVY: finish music service migration, tidy up services, more tests

repository/music/artist_memory.go

@@ -0,0 +1,135 @@
+package music
+
+import (
+	"arimelody-web/errors"
+	"arimelody-web/model"
+	"slices"
+)
+
+func (repo *MusicRepositoryMemory) GetAllArtists() ([]*model.Artist, error) {
+    return repo.artists, nil
+}
+func (repo *MusicRepositoryMemory) GetArtistCount() (int, error) {
+    return len(repo.artists), nil
+}
+
+func (repo *MusicRepositoryMemory) GetArtistByID(id string) (*model.Artist, error) {
+    index := slices.IndexFunc(repo.artists, func(artist *model.Artist) bool {
+        return artist.ID == id
+    })
+    if index == -1 { return nil, nil }
+    return repo.artists[index], nil
+}
+
+func (repo *MusicRepositoryMemory) GetArtistsNotOnRelease(releaseID string) ([]*model.Artist, error) {
+    release, err := repo.GetReleaseByID(releaseID)
+    if err != nil { return nil, err }
+    artists, err := repo.GetAllArtists()
+    if err != nil { return nil, err }
+
+    artistsNotOnRelease := []*model.Artist{}
+    for _, artist := range artists {
+        if !slices.ContainsFunc(release.Credits, func(credit *model.Credit) bool {
+            return credit.Artist.ID == artist.ID
+        }) {
+            artistsNotOnRelease = append(artistsNotOnRelease, artist)
+        }
+    }
+
+    return artistsNotOnRelease, nil
+}
+
+func (repo *MusicRepositoryMemory) GetArtistCredits(artistID string, showHidden bool) ([]*model.Credit, error) {
+    releases, err := repo.GetAllReleases(!showHidden, 0)
+    if err != nil { return nil, err }
+
+    credits := []*model.Credit{}
+    for _, release := range releases {
+        credits = append(credits, slices.DeleteFunc(
+            release.Credits,
+            func(credit *model.Credit) bool {
+                return credit.Artist.ID != artistID
+            },
+        )...)
+    }
+
+    return credits, nil
+}
+
+func (repo *MusicRepositoryMemory) CreateArtist(
+    id string,
+    name string,
+    website string,
+    avatar string,
+) error {
+    if artist, err := repo.GetArtistByID(id); err != nil {
+        if !errors.IsNotExistError(err) { return err }
+    } else {
+        if artist != nil { return errors.NewValidationError("Artist with this ID already exists") }
+    }
+
+    repo.artists = append(repo.artists, &model.Artist{
+        ID: id,
+        Name: name,
+        Website: website,
+        Avatar: avatar,
+    })
+    return nil
+}
+
+func (repo *MusicRepositoryMemory) UpdateArtist(artist *model.Artist) error {
+    repoArtist, err := repo.GetArtistByID(artist.ID)
+    if err != nil { return err }
+    if repoArtist == nil { return errors.NewNotExistError("Artist does not exist") }
+
+    repoArtist.Name = artist.Name
+    repoArtist.Website = artist.Website
+    repoArtist.Avatar = artist.Avatar
+    return nil
+}
+func (repo *MusicRepositoryMemory) UpdateArtistID(oldID string, newID string) error {
+    artist, err := repo.GetArtistByID(oldID)
+    if err != nil { return err }
+    if artist == nil { return errors.NewNotExistError("Artist does not exist") }
+
+    artist.ID = newID
+    return nil
+}
+func (repo *MusicRepositoryMemory) UpdateArtistName(id string, name string) error {
+    artist, err := repo.GetArtistByID(id)
+    if err != nil { return err }
+    if artist == nil { return errors.NewNotExistError("Artist does not exist") }
+
+    artist.Name = name
+    return nil
+}
+func (repo *MusicRepositoryMemory) UpdateArtistWebsite(id string, website string) error {
+    artist, err := repo.GetArtistByID(id)
+    if err != nil { return err }
+    if artist == nil { return errors.NewNotExistError("Artist does not exist") }
+
+    artist.Website = website
+    return nil
+}
+func (repo *MusicRepositoryMemory) UpdateArtistAvatar(id string, avatar string) error {
+    artist, err := repo.GetArtistByID(id)
+    if err != nil { return err }
+    if artist == nil { return errors.NewNotExistError("Artist does not exist") }
+
+    artist.Avatar = avatar
+    return nil
+}
+
+func (repo *MusicRepositoryMemory) DeleteArtist(id string) (string, error) {
+    var deletedID string
+    newArtists := []*model.Artist{}
+    for _, artist := range repo.artists {
+        if artist.ID == id {
+            deletedID = id
+            continue
+        }
+        newArtists = append(newArtists, artist)
+    }
+    repo.artists = newArtists
+    return deletedID, nil
+}