Function loadFileAsBlob

packages/app/src/components/reader/ReaderView.tsx:102–120

(filePath: string)

// --- Tauri file loading ---
async function loadFileAsBlob(filePath: string): Promise<Blob> {
  // Resolve managed relative paths (e.g., "books/{id}.epub") to the active desktop library root.
  const resolvedPath = await resolveDesktopDataPath(filePath);

  try {
    const { convertFileSrc } = await import("@tauri-apps/api/core");
    const assetUrl =
      resolvedPath.startsWith("asset://") || resolvedPath.startsWith("http")
        ? resolvedPath
        : convertFileSrc(resolvedPath);
    const response = await fetch(assetUrl);
    if (!response.ok) throw new Error(`fetch failed: ${response.status}`);
    return await response.blob();
  } catch {
    const { readFile } = await import("@tauri-apps/plugin-fs");
    const fileBytes = await readFile(resolvedPath);
    return new Blob([fileBytes]);
  }
}

// --- Blob cache ---
const fileBlobCache = new Map<string, Blob>();