Function extractCard

apps/webuiapps/src/lib/cardExtractor.ts:948–1029

(file: File)

// ── Main entry point ───────────────────────────────────────────────

export async function extractCard(file: File): Promise<ExtractResult> {
  if (file.size > MAX_FILE_SIZE) {
    return {
      status: 'error',
      message: `File too large (${(file.size / 1024 / 1024).toFixed(1)} MB). Maximum allowed size is 50 MB.`,
    };
  }

  try {
    const buffer = await file.arrayBuffer();

    let inputType: 'png' | 'charx';
    try {
      inputType = detectInputType(file.name, buffer);
    } catch {
      return {
        status: 'error',
        message: `Unsupported file type: ${file.name}. Expected PNG or ZIP/CharX.`,
      };
    }

    // Parse card
    let card: Record<string, unknown>;
    try {
      if (inputType === 'png') {
        card = parsePngCardBytes(buffer);
      } else {
        card = await parseCharx(buffer);
      }
    } catch (e) {
      return {
        status: 'error',
        message: `Failed to parse ${inputType} file: ${e instanceof Error ? e.message : String(e)}`,
      };
    }

    // Convert entries
    const converted = loadEntriesFromCard(card);
    const entries: Record<string, InternalEntry> = {};
    for (const { entry, index } of converted) {
      entries[String(index)] = entry;
    }

    // Extract apps and lore
    const apps = extractAppsFromEntries(entries);
    const lore = extractLoreEntries(entries);

    // Extract and attach regex scripts
    const tagAppMap = buildTagAppMap(apps);
    const embeddedScripts = loadRegexScriptsFromCard(card);
    const allScripts = normalizeScripts(embeddedScripts, tagAppMap);
    attachScriptsToApps(allScripts, apps, tagAppMap);

    // Extract character info from card
    const cardData = (card['data'] || {}) as Record<string, unknown>;
    const character: CharacterInfo = {
      name: (cardData['name'] as string) || '',
      description: (cardData['description'] as string) || '',