Add 'apps/mobile/' from commit '5fa30f365f21531094cd4d2045042bb4f1370ac3'

git-subtree-dir: apps/mobile
git-subtree-mainline: 86f8987dff
git-subtree-split: 5fa30f365f

apps/mobile/contexts/AuthContext.tsx

@@ -0,0 +1,80 @@
+import { expoClient } from "@better-auth/expo/client";
+import { createAuthClient } from "better-auth/react";
+import { genericOAuthClient } from "better-auth/client/plugins";
+import * as SecureStore from "expo-secure-store";
+import {
+  createContext,
+  useContext,
+  useMemo,
+  type ReactNode,
+} from "react";
+
+type AuthClient = ReturnType<typeof createAuthClient>;
+
+async function authFetch(input: RequestInfo | URL, init?: RequestInit) {
+  try {
+    return await fetch(input, init);
+  } catch (error) {
+    if (error instanceof Error && error.name === "AbortError") {
+      throw error;
+    }
+
+    return new Response(
+      JSON.stringify({
+        message: "Could not connect to the server.",
+        code: "NETWORK_ERROR",
+      }),
+      {
+        status: 503,
+        statusText: "Service Unavailable",
+        headers: { "content-type": "application/json" },
+      },
+    );
+  }
+}
+
+function createAppAuthClient(apiUrl: string, storagePrefix: string): AuthClient {
+  return createAuthClient({
+    baseURL: apiUrl,
+    fetchOptions: {
+      customFetchImpl: authFetch,
+    },
+    plugins: [
+          expoClient({
+            scheme: "beenvoice",
+            storagePrefix,
+            storage: SecureStore,
+          }),
+      genericOAuthClient(),
+    ],
+  });
+}
+
+const AuthContext = createContext<AuthClient | null>(null);
+
+export function AuthProvider({
+  apiUrl,
+  storagePrefix,
+  children,
+}: {
+  apiUrl: string;
+  storagePrefix: string;
+  children: ReactNode;
+}) {
+  const client = useMemo(
+    () => createAppAuthClient(apiUrl, storagePrefix),
+    [apiUrl, storagePrefix],
+  );
+
+  return <AuthContext.Provider value={client}>{children}</AuthContext.Provider>;
+}
+
+export function useAuthClient() {
+  const client = useContext(AuthContext);
+  if (!client) throw new Error("useAuthClient must be used within AuthProvider");
+  return client;
+}
+
+export function useSession() {
+  return useAuthClient().useSession();
+}