Update guest v2 branding and theming

resources/js/guest-v2/lib/brandingTheme.tsx

@@ -28,6 +28,10 @@ function resolveThemeVariant(
         ? 'dark'
         : null;
 
+  if (appearanceOverride) {
+    return appearanceOverride;
+  }
+
   if (mode === 'dark') {
     return 'dark';
   }
@@ -36,10 +40,6 @@ function resolveThemeVariant(
     return 'light';
   }
 
-  if (appearanceOverride) {
-    return appearanceOverride;
-  }
-
   if (backgroundPrefers) {
     return backgroundPrefers;
   }

resources/js/guest-v2/lib/guestTheme.ts

@@ -0,0 +1,28 @@
+import { DEFAULT_EVENT_BRANDING, useOptionalEventBranding } from '@/guest/context/EventBrandingContext';
+import type { EventBranding } from '@/guest/types/event-branding';
+import { useAppearance, type Appearance } from '@/hooks/use-appearance';
+import { resolveGuestThemeName } from './brandingTheme';
+
+export function resolveGuestThemeVariant(branding: EventBranding, appearance: Appearance): 'light' | 'dark' {
+  const themeName = resolveGuestThemeName(branding, appearance);
+  return themeName === 'guestNight' ? 'dark' : 'light';
+}
+
+export function useGuestThemeVariant(brandingOverride?: EventBranding | null): {
+  isDark: boolean;
+  variant: 'light' | 'dark';
+  themeName: 'guestLight' | 'guestNight';
+  branding: EventBranding;
+} {
+  const { appearance, resolved } = useAppearance() as {
+    appearance?: Appearance;
+    resolved?: 'light' | 'dark';
+  };
+  const brandingContext = useOptionalEventBranding();
+  const branding = brandingOverride ?? brandingContext?.branding ?? DEFAULT_EVENT_BRANDING;
+  const appearanceMode = appearance ?? (resolved === 'dark' ? 'dark' : 'light');
+  const themeName = resolveGuestThemeName(branding, appearanceMode);
+  const variant = themeName === 'guestNight' ? 'dark' : 'light';
+
+  return { isDark: variant === 'dark', variant, themeName, branding };
+}

resources/js/guest-v2/lib/toast.ts

@@ -0,0 +1,18 @@
+export type GuestToastPayload = {
+  text: string;
+  type?: 'success' | 'error' | 'info';
+  action?: { label: string; onClick: () => void };
+  durationMs?: number;
+};
+
+export function pushGuestToast(detail: GuestToastPayload) {
+  if (typeof window === 'undefined') {
+    return;
+  }
+
+  try {
+    window.dispatchEvent(new CustomEvent('guest-toast', { detail }));
+  } catch (error) {
+    console.warn('Dispatching toast event failed', error);
+  }
+}