wip: connect firebase token to apollo headers

auth/firebase-auth.tsx

@@ -0,0 +1,48 @@
+import auth, { FirebaseAuthTypes } from '@react-native-firebase/auth';
+import { Alert } from 'react-native';
+
+export const signInWithPhoneNumber = async (phoneNumber: string): Promise<FirebaseAuthTypes.ConfirmationResult | undefined> => {
+  if (!phoneNumber) {
+    Alert.alert("Please enter a valid phone number with a country code");
+    return;
+  }
+  try {
+    const confirmation = await auth().signInWithPhoneNumber(phoneNumber);
+    return confirmation;
+  } catch (err) {
+    console.warn(err);
+    Alert.alert("There was an error. Make sure you are using a country code (ex: +1 for US)");
+  }
+};
+
+export const confirmCode = async (confirm: FirebaseAuthTypes.ConfirmationResult, code: string): Promise<void> => {
+  try {
+    await confirm.confirm(code);
+  } catch {
+    Alert.alert("Invalid code, please try again.");
+  }
+};
+
+export const onAuthStateChanged = (callback: (user: FirebaseAuthTypes.User | null) => void) => {
+  return auth().onAuthStateChanged(callback);
+};
+
+
+export const getCurrentUserToken = async (): Promise<string | null> => {
+  const user = auth().currentUser;
+  if (user) {
+    return await user.getIdToken();
+  }
+  return null;
+};
+
+export const signOut = async (): Promise<void> => {
+  try {
+    auth().signOut()
+    // tie in to AppNav 
+  } catch (err) {
+    console.error(err)
+    // toggle appnav state regardless
+    // Handle sign out error - have to look into best way to do this - asyncstorage? 
+  }
+}

auth/index.ts

@@ -0,0 +1,15 @@
+import {
+  signInWithPhoneNumber,
+  confirmCode,
+  onAuthStateChanged,
+  getCurrentUserToken,
+  signOut
+} from './firebase-auth'
+
+export {
+  signInWithPhoneNumber,
+  confirmCode,
+  onAuthStateChanged,
+  getCurrentUserToken,
+  signOut
+}