refactor to adapters

testing/fakes/media/DemoImageServiceAdapter.ts

@@ -0,0 +1,41 @@
+import type { ImageServicePort } from '@gridpilot/media';
+
+const MALE_DEFAULT_AVATAR = '/images/avatars/male-default-avatar.jpg';
+const FEMALE_DEFAULT_AVATAR = '/images/avatars/female-default-avatar.jpeg';
+
+export class DemoImageServiceAdapter implements ImageServicePort {
+  getDriverAvatar(driverId: string): string {
+    const numericSuffixMatch = driverId.match(/(\d+)$/);
+    if (numericSuffixMatch) {
+      const numericSuffixString = numericSuffixMatch[1] ?? '';
+      const numericSuffix = Number.parseInt(numericSuffixString, 10);
+      return numericSuffix % 2 === 0 ? FEMALE_DEFAULT_AVATAR : MALE_DEFAULT_AVATAR;
+    }
+
+    const seed = stableHash(driverId);
+    return seed % 2 === 0 ? FEMALE_DEFAULT_AVATAR : MALE_DEFAULT_AVATAR;
+  }
+
+  getTeamLogo(teamId: string): string {
+    const seed = stableHash(teamId);
+    return `https://picsum.photos/seed/team-${seed}/256/256`;
+  }
+
+  getLeagueCover(leagueId: string): string {
+    const seed = stableHash(leagueId);
+    return `https://picsum.photos/seed/league-cover-${seed}/1200/280?blur=2`;
+  }
+
+  getLeagueLogo(leagueId: string): string {
+    const seed = stableHash(leagueId);
+    return `https://picsum.photos/seed/league-logo-${seed}/160/160`;
+  }
+}
+
+function stableHash(value: string): number {
+  let hash = 0;
+  for (let i = 0; i < value.length; i += 1) {
+    hash = (hash * 31 + value.charCodeAt(i)) | 0;
+  }
+  return Math.abs(hash);
+}