Adding more functionalities for all the license types

libs/api/src/lib/base-api/download.ts

@@ -0,0 +1,43 @@
+import { resolveTokenFromStorage } from '../session';
+import { BASE_API_URL } from './base-query-with-reauth';
+
+/**
+ * Opens an authenticated binary endpoint (a rendered PDF) in a new tab.
+ *
+ * RTK Query is not used here: `fetchBaseQuery` parses responses as JSON, and
+ * a plain `window.open` sends no Authorization header, so a guarded document
+ * endpoint would answer 401. Fetching to a blob keeps the bearer token on the
+ * request and still gives the browser something it can display.
+ */
+export async function openAuthedDocument(
+  path: string,
+  fallbackName = 'document.pdf',
+): Promise<void> {
+  const token = resolveTokenFromStorage();
+  const response = await fetch(`${BASE_API_URL}${path}`, {
+    headers: token ? { Authorization: `Bearer ${token}` } : {},
+  });
+  if (!response.ok) {
+    // The body carries the API's error key, which callers surface verbatim.
+    let message = `${response.status}`;
+    try {
+      const body = await response.json();
+      message = body?.message ?? message;
+    } catch {
+      /* non-JSON error body — the status is all we have */
+    }
+    throw new Error(message);
+  }
+  const blob = await response.blob();
+  const url = URL.createObjectURL(blob);
+  const opened = window.open(url, '_blank', 'noopener');
+  if (!opened) {
+    // Pop-up blocked: fall back to a direct download so the click still works.
+    const anchor = document.createElement('a');
+    anchor.href = url;
+    anchor.download = fallbackName;
+    anchor.click();
+  }
+  // Revoking immediately would race the new tab's load.
+  setTimeout(() => URL.revokeObjectURL(url), 60_000);
+}