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import { EMOJI_ICON_DATA } from "./generated/emoji-icon-data";
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import { buildEmojiAssetUrl, normalizeEmoji } from "./shared";
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const emojiIconData = EMOJI_ICON_DATA as Record<string, string>;
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const SKIN_TONE_MODIFIER_RE = /[\u{1F3FB}-\u{1F3FF}]/u;
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function deriveToneAsset(emoji: string): string | null {
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  if (!SKIN_TONE_MODIFIER_RE.test(emoji)) {
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    return null;
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  }
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  const codePoints: string[] = [];
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  for (const glyph of emoji) {
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    const codePoint = glyph.codePointAt(0);
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    if (codePoint === undefined || codePoint === 0xfe0e) {
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      continue;
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    }
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    codePoints.push(codePoint.toString(16));
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  }
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  return codePoints.length > 0 ? `${codePoints.join("-")}.png` : null;
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}
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export function getEmojiAsset(emoji: string): string | null {
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  const normalizedEmoji = normalizeEmoji(emoji);
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  if (normalizedEmoji === "") {
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    return null;
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  }
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  return emojiIconData[normalizedEmoji] ?? deriveToneAsset(emoji);
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}
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export function getEmojiAssetUrl(emoji: string): string | null {
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  const asset = getEmojiAsset(emoji);
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  return asset ? buildEmojiAssetUrl(asset) : null;
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}