Add configurable vibe presets

src/vibes.ts

@@ -0,0 +1,26 @@
+import { appConfig } from './config';
+import { VibeId, type VibePreset } from './config/types';
+import { readBrowserStorage } from './utils/browser-storage';
+import { getVibeById, VIBE_PRESETS } from './vibe-registry';
+import { getCurrentUriVibeId, getVibeIdFromUri } from './vibe-uri';
+
+export { VibeId };
+export { getVibeById, VIBE_PRESETS };
+export type { VibePreset };
+
+const VIBE_IDS = new Set<VibeId>(VIBE_PRESETS.map((vibe) => vibe.id));
+
+const isVibeId = (value: unknown): value is VibeId =>
+  typeof value === 'string' && VIBE_IDS.has(value as VibeId);
+
+export const getInitialVibe = (): VibePreset => {
+  const uriVibeId = getCurrentUriVibeId();
+  const storedVibeId = readBrowserStorage(appConfig.storage.vibeKey);
+  const storedOrLegacyVibeId = isVibeId(storedVibeId)
+    ? storedVibeId
+    : getVibeIdFromUri(`?vibe=${encodeURIComponent(storedVibeId ?? '')}`);
+  const initialVibeId =
+    uriVibeId ?? storedOrLegacyVibeId ?? appConfig.vibes.defaultVibeId;
+
+  return getVibeById(initialVibeId) ?? VIBE_PRESETS[0];
+};