feat: auth context setup

App.tsx

@@ -4,6 +4,7 @@ import { GestureHandlerRootView } from 'react-native-gesture-handler';
 import { useFonts } from 'expo-font';
 import { DMSans_400Regular, DMSans_700Bold } from '@expo-google-fonts/dm-sans';
 import { DefaultTheme } from '@react-navigation/native';
+import { AuthContextProvider } from '@/context/AuthContext';
 import AppNavigator from '@/navigation/AppNavigator';
 import colors from '@/styles/colors';
 
@@ -25,7 +26,9 @@ export default function App() {
 
   return (
     <GestureHandlerRootView style={{ flex: 1 }}>
-      <AppNavigator />
+      <AuthContextProvider>
+        <AppNavigator />
+      </AuthContextProvider>
     </GestureHandlerRootView>
   );
 }

package.json

@@ -17,10 +17,10 @@
     "@expo-google-fonts/dm-sans": "^0.2.3",
     "@expo/metro-runtime": "~4.0.0",
     "@react-native-async-storage/async-storage": "1.23.1",
-    "@react-navigation/bottom-tabs": "^7.0.6",
-    "@react-navigation/elements": "^2.1.0",
-    "@react-navigation/native": "^7.0.3",
-    "@react-navigation/native-stack": "^7.1.1",
+    "@react-navigation/bottom-tabs": "^6.6.1",
+    "@react-navigation/elements": "^1.3.31",
+    "@react-navigation/native": "^6.1.18",
+    "@react-navigation/native-stack": "^6.11.0",
     "@supabase/supabase-js": "^2.45.6",
     "@svgr/cli": "^8.1.0",
     "@types/react-navigation": "^3.0.8",
@@ -75,8 +75,8 @@
     "@eslint/object-schema": "^2.1.4",
     "@ianvs/prettier-plugin-sort-imports": "^4.4.0",
     "@types/react": "~18.3.12",
-    "@typescript-eslint/eslint-plugin": "^8.15.0",
-    "@typescript-eslint/parser": "^8.15.0",
+    "@typescript-eslint/eslint-plugin": "^8.18.0",
+    "@typescript-eslint/parser": "^8.18.0",
     "babel-plugin-module-resolver": "^5.0.2",
     "eslint": "^8.57.1",
     "eslint-config-expo": "~8.0.1",

src/components/GoogleSignInButton/GoogleSignInButton.tsx

@@ -1,11 +1,11 @@
-import { useEffect, useState } from 'react';
+import React, { useEffect } from 'react';
 import { Text, TouchableOpacity } from 'react-native';
 import { makeRedirectUri } from 'expo-auth-session';
 import * as Google from 'expo-auth-session/providers/google';
 import * as WebBrowser from 'expo-web-browser';
-import AsyncStorage from '@react-native-async-storage/async-storage';
 import { CompositeScreenProps } from '@react-navigation/native';
 import { NativeStackScreenProps } from '@react-navigation/native-stack';
+import { useAuth } from '@/context/AuthContext';
 import { LoginStackParamList, RootStackParamList } from '@/types/navigation';
 import { styles } from './styles';
 
@@ -16,76 +16,50 @@ type GoogleSignInButtonProps = CompositeScreenProps<
   NativeStackScreenProps<RootStackParamList, 'BottomTabs'>
 >;
 
-type UserInfo = {
-  email: string;
-  name: string;
-};
-
 export default function GoogleSignInButton({
   navigation,
 }: GoogleSignInButtonProps) {
-  const [userInfo, setUserInfo] = useState<UserInfo | null>(null);
-  const [request, response, promptAsync] = Google.useAuthRequest({
+  const { setAuthenticated } = useAuth();
+  const [, response, promptAsync] = Google.useAuthRequest({
     webClientId: process.env.EXPO_PUBLIC_GOOGLE_WEB_CLIENT_ID,
     androidClientId: process.env.EXPO_PUBLIC_GOOGLE_ANDROID_CLIENT_ID,
     iosClientId: process.env.EXPO_PUBLIC_GOOGLE_IOS_CLIENT_ID,
     redirectUri: makeRedirectUri({ scheme: 'org.calblueprint.ourcityforest' }),
   });
 
-  console.log(request);
-  console.log(userInfo);
-
   useEffect(() => {
-    async function handleSignInWithGoogle() {
+    const handleSignInWithGoogle = async (token: string) => {
       try {
-        const userJSON = await AsyncStorage.getItem('@user');
-        if (userJSON) {
-          setUserInfo(JSON.parse(userJSON));
-        } else if (
-          response?.type === 'success' &&
-          response.authentication?.accessToken
-        ) {
-          await getUserInfo(response.authentication.accessToken);
+        const userResponse = await fetch(
+          'https://www.googleapis.com/userinfo/v2/me',
+          {
+            headers: { Authorization: `Bearer ${token}` },
+          },
+        );
+
+        if (userResponse.ok) {
+          await setAuthenticated(true);
           navigation.navigate('BottomTabs', {
             screen: 'Home',
             params: { screen: 'TreeSearch' },
           });
+        } else {
+          console.error('Authentication failed');
+          await setAuthenticated(false);
         }
       } catch (error) {
-        console.error('Error retrieving user data from AsyncStorage:', error);
+        console.error('Failed to sign in with Google:', error);
+        await setAuthenticated(false);
       }
-    }
-
-    handleSignInWithGoogle();
-  }, [navigation, response]);
+    };
 
-  const getUserInfo = async (token: string) => {
-    if (!token) return;
-    try {
-      const userResponse = await fetch(
-        'https://www.googleapis.com/userinfo/v2/me',
-        {
-          headers: { Authorization: `Bearer ${token}` },
-        },
-      );
-      const user = await userResponse.json();
-      await AsyncStorage.setItem('@user', JSON.stringify(user));
-      setUserInfo(user);
-    } catch (error) {
-      console.error('Failed to fetch user data:', error);
+    if (response?.type === 'success' && response.authentication?.accessToken) {
+      handleSignInWithGoogle(response.authentication.accessToken);
     }
-  };
+  }, [response, navigation, setAuthenticated]);
 
   return (
-    <TouchableOpacity
-      onPress={() => {
-        promptAsync();
-        navigation.navigate('BottomTabs', {
-          screen: 'Home',
-          params: { screen: 'TreeSearch' },
-        });
-      }}
-    >
+    <TouchableOpacity onPress={() => promptAsync()}>
       <Text style={styles.adminLoginLinkText}>Login Here</Text>
     </TouchableOpacity>
   );

src/components/GoogleSignOutButton/GoogleSignOutButton.tsx

@@ -1,15 +1,38 @@
 import { Text, TouchableOpacity } from 'react-native';
 import AsyncStorage from '@react-native-async-storage/async-storage';
+import { CommonActions } from '@react-navigation/native';
+import { NativeStackScreenProps } from '@react-navigation/native-stack';
+import { useAuth } from '@/context/AuthContext';
+import { ContactStackParamList } from '@/types/navigation';
 import { styles } from './styles';
 
-export default function GoogleSignOutButton() {
+type GoogleSignOutButtonProps = NativeStackScreenProps<
+  ContactStackParamList,
+  'Contact'
+>;
+
+export default function GoogleSignOutButton({
+  navigation,
+}: GoogleSignOutButtonProps) {
+  const { setAuthenticated } = useAuth();
+
+  const handleSignOut = async () => {
+    try {
+      await AsyncStorage.setItem('authenticated', 'false');
+      await setAuthenticated(false);
+      navigation.dispatch(
+        CommonActions.reset({
+          index: 0,
+          routes: [{ name: 'LoginStack' }],
+        }),
+      );
+    } catch (error) {
+      console.error('Error signing out:', error);
+    }
+  };
+
   return (
-    <TouchableOpacity
-      style={styles.button}
-      onPress={() => {
-        AsyncStorage.removeItem('@user');
-      }}
-    >
+    <TouchableOpacity style={styles.button} onPress={handleSignOut}>
       <Text style={styles.buttonText}>Sign out</Text>
     </TouchableOpacity>
   );

src/components/SpeciesDisplay/SpeciesDisplay.tsx

@@ -1,4 +1,4 @@
-import { Fragment } from 'react';
+import React from 'react';
 import { Text, TextInput, View } from 'react-native';
 import SvgBear from '@/icons/Bear';
 import SvgFlash from '@/icons/Flash';

src/context/AuthContext.tsx

@@ -0,0 +1,56 @@
+import React, {
+  createContext,
+  ReactNode,
+  useContext,
+  useEffect,
+  useState,
+} from 'react';
+import AsyncStorage from '@react-native-async-storage/async-storage';
+
+type AuthState = {
+  isAuthenticated: boolean;
+  setAuthenticated: (value: boolean) => Promise<void>;
+};
+
+const AuthContext = createContext<AuthState | undefined>(undefined);
+
+export const AuthContextProvider = ({ children }: { children: ReactNode }) => {
+  const [isAuthenticated, setIsAuthenticated] = useState(false);
+
+  useEffect(() => {
+    const syncAuthState = async () => {
+      try {
+        const storedAuth = await AsyncStorage.getItem('authenticated');
+        console.log('Auth state from storage:', storedAuth);
+        setIsAuthenticated(storedAuth === 'true');
+      } catch (error) {
+        console.error('Error loading authentication state:', error);
+      }
+    };
+
+    syncAuthState();
+  }, []);
+
+  const setAuthenticated = async (value: boolean) => {
+    try {
+      await AsyncStorage.setItem('authenticated', value ? 'true' : 'false');
+      setIsAuthenticated(value);
+    } catch (error) {
+      console.error('Failed to update authentication state:', error);
+    }
+  };
+
+  return (
+    <AuthContext.Provider value={{ isAuthenticated, setAuthenticated }}>
+      {children}
+    </AuthContext.Provider>
+  );
+};
+
+export const useAuth = (): AuthState => {
+  const context = useContext(AuthContext);
+  if (!context) {
+    throw new Error('useAuth must be used within an AuthProvider');
+  }
+  return context;
+};

src/navigation/AppNavigator.tsx

@@ -1,8 +1,8 @@
-import React from 'react';
 import { createBottomTabNavigator } from '@react-navigation/bottom-tabs';
 import { NavigationContainer } from '@react-navigation/native';
 import { createNativeStackNavigator } from '@react-navigation/native-stack';
 import QRCodeScanner from '@/components/QRCodeScanner/QRCodeScanner';
+import { useAuth } from '@/context/AuthContext';
 import SvgContactSelected from '@/icons/ContactSelected';
 import SvgContactUnselected from '@/icons/ContactUnselected';
 import SvgHomeSelected from '@/icons/HomeSelected';
@@ -104,15 +104,26 @@ function BottomTabNavigator() {
 
 // Root Navigator
 export default function AppNavigator() {
+  const { isAuthenticated } = useAuth();
+
   return (
     <NavigationContainer>
-      <RootStack.Navigator
-        initialRouteName="LoginStack"
-        screenOptions={{ headerShown: false }}
-      >
-        <RootStack.Screen name="LoginStack" component={LoginStackNavigator} />
-        <RootStack.Screen name="BottomTabs" component={BottomTabNavigator} />
-      </RootStack.Navigator>
+      {isAuthenticated ? (
+        <RootStack.Navigator
+          initialRouteName="BottomTabs"
+          screenOptions={{ headerShown: false }}
+        >
+          <RootStack.Screen name="BottomTabs" component={BottomTabNavigator} />
+        </RootStack.Navigator>
+      ) : (
+        <RootStack.Navigator
+          initialRouteName="LoginStack"
+          screenOptions={{ headerShown: false }}
+        >
+          <RootStack.Screen name="LoginStack" component={LoginStackNavigator} />
+          <RootStack.Screen name="BottomTabs" component={BottomTabNavigator} />
+        </RootStack.Navigator>
+      )}
     </NavigationContainer>
   );
 }

src/screens/Contact/Contact.tsx

@@ -1,8 +1,19 @@
 import React from 'react';
 import { Image, ScrollView, Text, View } from 'react-native';
+import { NativeStackScreenProps } from '@react-navigation/native-stack';
+import GoogleSignOutButton from '@/components/GoogleSignOutButton/GoogleSignOutButton';
+import { ContactStackParamList } from '@/types/navigation';
 import { styles } from './styles';
 
-export default function ContactScreen() {
+type ContactScreenProps = NativeStackScreenProps<
+  ContactStackParamList,
+  'Contact'
+>;
+
+export default function ContactScreen({
+  navigation,
+  route,
+}: ContactScreenProps) {
   return (
     <ScrollView style={styles.backgroundContainer}>
       <View style={styles.imageContainer}>
@@ -17,6 +28,9 @@ export default function ContactScreen() {
       </View>
 
       <View style={styles.contactInfo}>
+        {/* temporary button */}
+        <GoogleSignOutButton navigation={navigation} route={route} />
+
         <View>
           <Text style={styles.contactHeader}>Contact Us</Text>
         </View>

src/screens/Login/styles.ts

@@ -22,8 +22,8 @@ export const styles = StyleSheet.create({
 
   logo: {
     height: 200,
-    marginTop: 40,
-    marginBottom: 40,
+    marginTop: 20,
+    marginBottom: 70,
   },
 
   button: {