'use strict';

// Applies a color scheme using Beer CSS's dynamic theming, which derives a full
// Material 3 palette from a single seed color. `ui()` is provided by beer.min.js.
window.Theme = (function () {
  async function apply(scheme) {
    if (!scheme || typeof window.ui !== 'function') return;
    try {
      await window.ui('theme', scheme.seed_color);
      window.ui('mode', scheme.mode === 'dark' ? 'dark' : 'light');
    } catch (e) {
      console.warn('Theme apply failed', e);
    }
  }

  // Resolve the scheme to show: the user's preferred one, else the default.
  function resolve(schemes, preferredId) {
    if (!schemes || !schemes.length) return null;
    return (
      schemes.find((s) => s.id === preferredId) ||
      schemes.find((s) => s.is_default) ||
      schemes[0]
    );
  }

  return { apply, resolve };
})();