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 };
}