1 files changed, 163 insertions, 0 deletions
diff --git a/src/data/things/artist.js b/src/data/things/artist.js
new file mode 100644
index 0000000..303f33f
--- /dev/null
+++ b/src/data/things/artist.js
@@ -0,0 +1,163 @@
+import Thing from './thing.js';
+
+import find from '../../util/find.js';
+
+export class Artist extends Thing {
+  static [Thing.referenceType] = 'artist';
+
+  static [Thing.getPropertyDescriptors] = ({
+    Album,
+    Flash,
+    Track,
+
+    validators: {
+      isName,
+      validateArrayItems,
+    },
+  }) => ({
+    // Update & expose
+
+    name: Thing.common.name('Unnamed Artist'),
+    directory: Thing.common.directory(),
+    urls: Thing.common.urls(),
+    contextNotes: Thing.common.simpleString(),
+
+    hasAvatar: Thing.common.flag(false),
+    avatarFileExtension: Thing.common.fileExtension('jpg'),
+
+    aliasNames: {
+      flags: {update: true, expose: true},
+      update: {
+        validate: validateArrayItems(isName),
+      },
+    },
+
+    isAlias: Thing.common.flag(),
+    aliasedArtistRef: Thing.common.singleReference(Artist),
+
+    // Update only
+
+    albumData: Thing.common.wikiData(Album),
+    artistData: Thing.common.wikiData(Artist),
+    flashData: Thing.common.wikiData(Flash),
+    trackData: Thing.common.wikiData(Track),
+
+    // Expose only
+
+    aliasedArtist: {
+      flags: {expose: true},
+
+      expose: {
+        dependencies: ['artistData', 'aliasedArtistRef'],
+        compute: ({artistData, aliasedArtistRef}) =>
+          aliasedArtistRef && artistData
+            ? find.artist(aliasedArtistRef, artistData, {mode: 'quiet'})
+            : null,
+      },
+    },
+
+    tracksAsArtist:
+      Artist.filterByContrib('trackData', 'artistContribs'),
+    tracksAsContributor:
+      Artist.filterByContrib('trackData', 'contributorContribs'),
+    tracksAsCoverArtist:
+      Artist.filterByContrib('trackData', 'coverArtistContribs'),
+
+    tracksAsAny: {
+      flags: {expose: true},
+
+      expose: {
+        dependencies: ['trackData'],
+
+        compute: ({trackData, [Artist.instance]: artist}) =>
+          trackData?.filter((track) =>
+            [
+              ...track.artistContribs,
+              ...track.contributorContribs,
+              ...track.coverArtistContribs,
+            ].some(({who}) => who === artist)) ?? [],
+      },
+    },
+
+    tracksAsCommentator: {
+      flags: {expose: true},
+
+      expose: {
+        dependencies: ['trackData'],
+
+        compute: ({trackData, [Artist.instance]: artist}) =>
+          trackData?.filter(({commentatorArtists}) =>
+            commentatorArtists.includes(artist)) ?? [],
+      },
+    },
+
+    albumsAsAlbumArtist:
+      Artist.filterByContrib('albumData', 'artistContribs'),
+    albumsAsCoverArtist:
+      Artist.filterByContrib('albumData', 'coverArtistContribs'),
+    albumsAsWallpaperArtist:
+      Artist.filterByContrib('albumData', 'wallpaperArtistContribs'),
+    albumsAsBannerArtist:
+      Artist.filterByContrib('albumData', 'bannerArtistContribs'),
+
+    albumsAsCommentator: {
+      flags: {expose: true},
+
+      expose: {
+        dependencies: ['albumData'],
+
+        compute: ({albumData, [Artist.instance]: artist}) =>
+          albumData?.filter(({commentatorArtists}) =>
+            commentatorArtists.includes(artist)) ?? [],
+      },
+    },
+
+    flashesAsContributor: Artist.filterByContrib(
+      'flashData',
+      'contributorContribs'
+    ),
+  });
+
+  static [Thing.getSerializeDescriptors] = ({
+    serialize: S,
+  }) => ({
+    name: S.id,
+    directory: S.id,
+    urls: S.id,
+    contextNotes: S.id,
+
+    hasAvatar: S.id,
+    avatarFileExtension: S.id,
+
+    aliasNames: S.id,
+
+    tracksAsArtist: S.toRefs,
+    tracksAsContributor: S.toRefs,
+    tracksAsCoverArtist: S.toRefs,
+    tracksAsCommentator: S.toRefs,
+
+    albumsAsAlbumArtist: S.toRefs,
+    albumsAsCoverArtist: S.toRefs,
+    albumsAsWallpaperArtist: S.toRefs,
+    albumsAsBannerArtist: S.toRefs,
+    albumsAsCommentator: S.toRefs,
+
+    flashesAsContributor: S.toRefs,
+  });
+
+  static filterByContrib = (thingDataProperty, contribsProperty) => ({
+    flags: {expose: true},
+
+    expose: {
+      dependencies: [thingDataProperty],
+
+      compute: ({
+        [thingDataProperty]: thingData,
+        [Artist.instance]: artist
+      }) =>
+        thingData?.filter(thing =>
+          thing[contribsProperty]
+            .some(contrib => contrib.who === artist)) ?? [],
+    },
+  });
+}