// lexicon.js — in-world UI vocabulary (upgrade #3).
//
// Lore names are flavor layered on top of clear function. Visual labels get the
// lore word; ARIA labels ALWAYS stay plain-English (set directly in markup), so
// screen readers and the "mundane mode" toggle never lose meaning.

export const LEXICON = {
  guide:        'The Almanac',
  guideShort:   'Almanac',
  favorites:    'The Grimoire',
  search:       'Scry',
  channelEntry: 'Incantation',
  sleepTimer:   'The Orb Dims',
  volume:       'Resonance',
  noSignal:     'THE ORB CLOUDS OVER',
  noSignalSub:  'no signal — seeking another vision',
  loading:      'Summoning…',
  nextUp:       'What Fate Foretells',
  live:         'LIVE',
  help:         'Incantations',          // keyboard-help title
  theater:      'Theater',
  dim:          'Dim the Hall',
  ambient:      'Orb Glow',
  brand:        'THE PONDERING ORB',
};

const PLAIN = {
  guide: 'TV Guide', guideShort: 'Guide', favorites: 'Favorites', search: 'Search',
  channelEntry: 'Channel', sleepTimer: 'Sleep timer', volume: 'Volume',
  noSignal: 'NO SIGNAL', noSignalSub: 'stream unavailable — trying another',
  loading: 'Loading…', nextUp: 'Next up', live: 'LIVE', help: 'Keyboard shortcuts',
  theater: 'Theater', dim: 'Dim', ambient: 'Ambient glow', brand: 'THE PONDERING ORB',
};

const KEY = 'orb.mundaneMode';
let mundane = (() => { try { return localStorage.getItem(KEY) === '1'; } catch { return false; } })();

/** @param {string} k @returns {string} */
export function lex(k) { return (mundane ? PLAIN : LEXICON)[k] ?? PLAIN[k] ?? k; }

export function isMundane() { return mundane; }

export function setMundane(on) {
  mundane = !!on;
  try { localStorage.setItem(KEY, mundane ? '1' : '0'); } catch { /* ignore */ }
  applyLexicon();
}

/** Fill every [data-lex] element's textContent. Never touches aria-label. */
export function applyLexicon(root = document) {
  for (const el of root.querySelectorAll('[data-lex]')) {
    const k = el.getAttribute('data-lex');
    el.textContent = lex(k);
  }
}