1 files changed, 54 insertions, 0 deletions
diff --git a/src/components/jet/today-card/background-color-utils.ts b/src/components/jet/today-card/background-color-utils.ts
new file mode 100644
index 0000000..c2c0fe6
--- /dev/null
+++ b/src/components/jet/today-card/background-color-utils.ts
@@ -0,0 +1,54 @@
+import { type Optional, isSome } from '@jet/environment/types/optional';
+import type {
+    Color,
+    TodayCardMedia,
+    TodayCardMediaWithArtwork,
+} from '@jet-app/app-store/api/models';
+
+import { isTodayCardMediaBrandedSingleApp } from './media/TodayCardMediaBrandedSingleApp.svelte';
+import { isTodayCardMediaAppEvent } from './media/TodayCardMediaAppEvent.svelte';
+import { isTodayCardMediaWithArtwork } from './media/TodayCardMediaWithArtwork.svelte';
+
+const DEFAULT_COLOR: Color = {
+    type: 'named',
+    name: 'defaultBackground',
+};
+
+function getBackgroundFromMediaWithArtwork(
+    media: TodayCardMediaWithArtwork,
+): Optional<Color> {
+    return (
+        media.videos[0]?.preview.backgroundColor ??
+        media.artworks[0]?.backgroundColor
+    );
+}
+
+/**
+ * Onyx App Store alternative to the `bestBackgroundColor` method that exists on
+ * the {@linkcode TodayCardMedia} type
+ *
+ * This is necessary because the functions on those class instances are not
+ * carried over to the client when serializing the view-model, making them
+ * impossible to call in a consistent way from our codebase
+ */
+export function bestBackgroundColor(media: Optional<TodayCardMedia>): Color {
+    if (isSome(media)) {
+        if (isTodayCardMediaAppEvent(media)) {
+            return media.tintColor;
+        }
+
+        if (isTodayCardMediaBrandedSingleApp(media)) {
+            return (
+                getBackgroundFromMediaWithArtwork(media) ??
+                media.icon.backgroundColor ??
+                DEFAULT_COLOR
+            );
+        }
+
+        if (isTodayCardMediaWithArtwork(media)) {
+            return getBackgroundFromMediaWithArtwork(media) ?? DEFAULT_COLOR;
+        }
+    }
+
+    return DEFAULT_COLOR;
+}