Rename files

ts/badges/getBadgeImageFileLocalPath.std.ts

@@ -0,0 +1,38 @@
+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import lodash from 'lodash';
+import type { BadgeType } from './types.std.js';
+import { BadgeImageTheme } from './BadgeImageTheme.std.js';
+
+const { find, findLast, first, last } = lodash;
+
+export function getBadgeImageFileLocalPath(
+  badge: Readonly<undefined | BadgeType>,
+  size: number,
+  theme: BadgeImageTheme
+): undefined | string {
+  if (!badge) {
+    return undefined;
+  }
+
+  const localPathsForTheme: Array<undefined | string> = badge.images.map(
+    image => image[theme]?.localPath
+  );
+
+  if (theme === BadgeImageTheme.Transparent) {
+    const search = size < 36 ? find : findLast;
+    return search(localPathsForTheme, Boolean);
+  }
+
+  if (size < 24) {
+    return first(localPathsForTheme);
+  }
+  if (size < 36) {
+    return localPathsForTheme[1];
+  }
+  if (size < 160) {
+    return localPathsForTheme[2];
+  }
+  return last(localPathsForTheme) || localPathsForTheme[2];
+}