/**
 * 매매 시그널 알림음
 */

export type TradeAlertSoundId =
  | 'silent'
  | 'bell'
  | 'chime'
  | 'alert'
  | 'success'
  | 'ding'
  | 'message'
  | 'notification'
  | 'ring'
  | 'positive'
  | 'coin'
  | 'pop'
  | 'tone'
  | 'complete';

export const TRADE_ALERT_SOUND_OPTIONS: { id: TradeAlertSoundId; label: string }[] = [
  { id: 'bell',         label: '벨 (기본)' },
  { id: 'chime',        label: '차임' },
  { id: 'alert',        label: '경고' },
  { id: 'success',      label: '성공' },
  { id: 'ding',         label: '딩동' },
  { id: 'message',      label: '메시지' },
  { id: 'notification', label: '알림 톤' },
  { id: 'ring',         label: '전화 벨' },
  { id: 'positive',     label: '긍정 알림' },
  { id: 'coin',         label: '코인' },
  { id: 'pop',          label: '팝' },
  { id: 'tone',         label: '클린 톤' },
  { id: 'complete',     label: '완료' },
  { id: 'silent',       label: '무음' },
];

const SOUND_URLS: Record<Exclude<TradeAlertSoundId, 'silent'>, string> = {
  bell:         'https://assets.mixkit.co/active_storage/sfx/2869/2869-preview.mp3',
  chime:        'https://assets.mixkit.co/active_storage/sfx/2870/2870-preview.mp3',
  alert:        'https://assets.mixkit.co/active_storage/sfx/2868/2868-preview.mp3',
  success:      'https://assets.mixkit.co/active_storage/sfx/2018/2018-preview.mp3',
  ding:         'https://assets.mixkit.co/active_storage/sfx/2354/2354-preview.mp3',
  message:      'https://assets.mixkit.co/active_storage/sfx/2357/2357-preview.mp3',
  notification: 'https://assets.mixkit.co/active_storage/sfx/2359/2359-preview.mp3',
  ring:         'https://assets.mixkit.co/active_storage/sfx/2356/2356-preview.mp3',
  positive:     'https://assets.mixkit.co/active_storage/sfx/2000/2000-preview.mp3',
  coin:         'https://assets.mixkit.co/active_storage/sfx/1998/1998-preview.mp3',
  pop:          'https://assets.mixkit.co/active_storage/sfx/2355/2355-preview.mp3',
  tone:         'https://assets.mixkit.co/active_storage/sfx/2867/2867-preview.mp3',
  complete:     'https://assets.mixkit.co/active_storage/sfx/2001/2001-preview.mp3',
};

export function normalizeTradeAlertSoundId(id?: string | null): TradeAlertSoundId {
  if (!id) return 'bell';
  const found = TRADE_ALERT_SOUND_OPTIONS.some(o => o.id === id);
  return found ? (id as TradeAlertSoundId) : 'bell';
}

export function getTradeAlertSoundUrl(soundId: TradeAlertSoundId): string {
  if (soundId === 'silent') return '';
  return SOUND_URLS[soundId] ?? SOUND_URLS.bell;
}

let lastPlayAt = 0;

/** 새 매매 시그널 알림 시 사운드 재생 */
export function playTradeAlertSound(soundId: TradeAlertSoundId, volume = 0.55): void {
  if (soundId === 'silent') return;
  const url = getTradeAlertSoundUrl(soundId);
  if (!url) return;

  const now = Date.now();
  if (now - lastPlayAt < 400) return;
  lastPlayAt = now;

  try {
    const audio = new Audio(url);
    audio.volume = Math.min(1, Math.max(0, volume));
    void audio.play().catch(() => { /* autoplay 정책 등 */ });
  } catch { /* ignore */ }
}

export function previewTradeAlertSound(soundId: TradeAlertSoundId): void {
  lastPlayAt = 0;
  playTradeAlertSound(soundId);
}