Fix Jellyfin Login (#76)

src/preload-jellyfin-setup.ts

@@ -0,0 +1,39 @@
+import { contextBridge, ipcRenderer } from 'electron';
+
+const JELLYFIN_SETUP_SUBMIT_CHANNEL = 'jellyfin:setup-submit';
+
+type JellyfinSetupAction = 'login' | 'logout' | 'done';
+
+type JellyfinSetupSubmission = {
+  action?: unknown;
+  server?: unknown;
+  username?: unknown;
+  password?: unknown;
+};
+
+function isRecord(value: unknown): value is Record<string, unknown> {
+  return typeof value === 'object' && value !== null;
+}
+
+function normalizeAction(value: unknown): JellyfinSetupAction {
+  return value === 'logout' || value === 'done' ? value : 'login';
+}
+
+function normalizeString(value: unknown): string {
+  return typeof value === 'string' ? value : '';
+}
+
+function normalizeSubmission(value: unknown): Required<JellyfinSetupSubmission> {
+  const record = isRecord(value) ? value : {};
+  return {
+    action: normalizeAction(record.action),
+    server: normalizeString(record.server),
+    username: normalizeString(record.username),
+    password: normalizeString(record.password),
+  };
+}
+
+contextBridge.exposeInMainWorld('subminerJellyfinSetup', {
+  submit: (submission: JellyfinSetupSubmission): Promise<unknown> =>
+    ipcRenderer.invoke(JELLYFIN_SETUP_SUBMIT_CHANNEL, normalizeSubmission(submission)),
+});