refactor(registry): downloadBlobFile

src/modules/10_registry/utils/downloadFile.ts

@@ -0,0 +1,59 @@
+export interface DownloadFileOptions {
+  downloadUrl: string;
+  fileName: string;
+}
+
+const isMobile =
+  /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(
+    navigator.userAgent,
+  );
+
+export async function downloadBlobFile({
+  downloadUrl,
+  fileName,
+}: DownloadFileOptions): Promise<void> {
+  // Use window.open for desktop, blob download for mobile
+  if (!isMobile) {
+    window.open(downloadUrl, "_blank");
+    return;
+  }
+
+  const response = await fetch(downloadUrl);
+  const blob = await response.blob();
+
+  const contentType: string | null = response.headers.get("Content-Type");
+
+  const extensionMap: Record<string, string> = {
+    "application/pdf": "pdf",
+    "image/jpeg": "jpg",
+    "image/png": "png",
+    "image/gif": "gif",
+    "application/zip": "zip",
+    "application/vnd.openxmlformats-officedocument.wordprocessingml.document":
+      "docx",
+    "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet": "xlsx",
+  };
+
+  let extension = contentType ? extensionMap[contentType] : undefined;
+
+  if (!extension) {
+    const urlWithoutQuery = downloadUrl.split("?")[0];
+    extension = urlWithoutQuery.includes(".")
+      ? urlWithoutQuery.split(".").pop()
+      : "pdf";
+  }
+
+  const blobForDownload = new Blob([blob], {
+    type: "application/octet-stream",
+  });
+  const url = URL.createObjectURL(blobForDownload);
+  const link = document.createElement("a");
+  link.href = url;
+  link.download = `${fileName}.${extension}`;
+  document.body.appendChild(link);
+  link.click();
+  setTimeout(() => {
+    document.body.removeChild(link);
+    URL.revokeObjectURL(url);
+  }, 100);
+}