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qwertypoolqwertypool
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Update firebaseAuth.dart
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‎firebaseAuth.dart

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//here will be the code snippets of firebase auth
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import 'package:book_store/Screens/Home/mainPage.dart';
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import 'package:book_store/Screens/Registration/login.dart';
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import 'package:book_store/Screens/Registration/verifyEmail.dart';
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import 'package:firebase_auth/firebase_auth.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/widgets.dart';
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import 'package:flutter_secure_storage/flutter_secure_storage.dart';
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import 'package:google_sign_in/google_sign_in.dart';
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class AuthClass {
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final FirebaseAuth _auth = FirebaseAuth.instance;
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final GoogleSignIn _googleSignIn = GoogleSignIn();
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final storage = new FlutterSecureStorage();
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//Sign in with email
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Future<void>? signInWithEmail(
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{required String email,
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required String password,
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required BuildContext context}) async {
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try {
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UserCredential userCredential = await FirebaseAuth.instance
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.signInWithEmailAndPassword(email: email, password: password);
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User? user = _auth.currentUser;
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if (user != null && !user.emailVerified) {
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showSnackBar(context, 'Email was not verified');
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await user.sendEmailVerification();
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Navigator.pushNamed(context, VerifyEmail.routeName,
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arguments: VerifyEmailArguments(email));
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} else {
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Navigator.pushNamedAndRemoveUntil(
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context, MainPage.routeName, (route) => false);
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}
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} on FirebaseAuthException catch (e) {
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if (e.code == 'user-not-found') {
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showSnackBar(context, 'No user found for that email.');
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} else if (e.code == 'wrong-password') {
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showSnackBar(context, 'Wrong password provided for that user.');
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}
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} catch (e) {
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showSnackBar(context, e.toString());
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}
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}
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//Sign up with Email
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Future<void>? signUpWithEmail(
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{required String email,
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required String password,
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required String confirmPassword,
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required BuildContext context}) async {
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if (password == confirmPassword) {
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try {
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UserCredential userCredential = await _auth
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.createUserWithEmailAndPassword(email: email, password: password);
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print(userCredential.user!.uid);
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User? user = _auth.currentUser;
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var uid = _auth.currentUser!.uid;
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if (user != null && !user.emailVerified) {
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await user.sendEmailVerification();
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}
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// storeTokenAndData(userCredential);
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Navigator.pushNamed(context, VerifyEmail.routeName,
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arguments: VerifyEmailArguments(email));
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} on FirebaseAuthException catch (e) {
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if (e.code == 'weak-password') {
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showSnackBar(context, 'Password should atleast be of 6 characters');
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} else if (e.code == 'email-already-in-use') {
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User? user = _auth.currentUser;
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if (user != null && !user.emailVerified) {
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showSnackBar(context,
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'This email is already taken please login, (Email verification required)');
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} else {
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showSnackBar(context, 'This email is already taken');
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}
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}
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} catch (e) {
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showSnackBar(context, e.toString());
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}
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} else {
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showSnackBar(context, "Passwords didn't matched");
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}
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}
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// Reset Password
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Future<void> resetPassword(
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{required String email, required BuildContext context}) async {
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try {
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await _auth.sendPasswordResetEmail(
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email: email,
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);
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showModalSheet(context,
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'A password reset link has been sent to your mail. Please reset your password there and login back again');
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} on FirebaseAuthException catch (e) {
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if (e.code == 'invalid-email') {
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showSnackBar(context, 'Invalid email address');
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} else if (e.code == 'user-not-found') {
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showSnackBar(context, 'No user found with this email address');
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}
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}
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}
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//Google sign In
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Future<void> googleSignIn(BuildContext context) async {
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try {
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GoogleSignInAccount? googleSignInAccount = await _googleSignIn.signIn();
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GoogleSignInAuthentication googleSignInAuthentication =
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await googleSignInAccount!.authentication;
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AuthCredential credential = GoogleAuthProvider.credential(
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accessToken: googleSignInAuthentication.accessToken,
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idToken: googleSignInAuthentication.idToken,
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);
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UserCredential userCredential =
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await _auth.signInWithCredential(credential);
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storeTokenAndData(userCredential);
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Navigator.pushNamedAndRemoveUntil(
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context, MainPage.routeName, (route) => false);
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} catch (e) {
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showSnackBar(context, e.toString());
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}
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}
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Future<String?> googleSignIn1(BuildContext context) async {
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try {
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final GoogleSignInAccount? googleSignInAccount =
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await _googleSignIn.signIn();
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final GoogleSignInAuthentication googleSignInAuthentication =
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await googleSignInAccount!.authentication;
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final AuthCredential credential = GoogleAuthProvider.credential(
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accessToken: googleSignInAuthentication.accessToken,
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idToken: googleSignInAuthentication.idToken,
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);
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await _auth.signInWithCredential(credential);
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Navigator.pushNamedAndRemoveUntil(
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context, MainPage.routeName, (route) => false);
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} on FirebaseAuthException catch (e) {
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showSnackBar(context, e.toString());
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print(e.message);
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throw e;
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}
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}
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//Sign Out
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Future<void> signOut({required BuildContext context}) async {
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try {
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await _googleSignIn.signOut();
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await _auth.signOut();
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await storage.delete(key: "token");
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Navigator.pushNamedAndRemoveUntil(
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context, LoginScreen.routeName, (route) => false);
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} catch (e) {
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showSnackBar(context, e.toString());
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}
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}
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void storeTokenAndData(UserCredential userCredential) async {
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print("storing token and data");
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await storage.write(
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key: "token", value: userCredential.credential!.token.toString());
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await storage.write(
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key: "usercredential", value: userCredential.toString());
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}
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Future<String?> getToken() async {
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return await storage.read(key: "token");
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}
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void showSnackBar(BuildContext context, String text) {
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final snackBar = SnackBar(content: Text(text));
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ScaffoldMessenger.of(context).showSnackBar(snackBar);
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}
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}
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void showModalSheet(BuildContext context, String text) {
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showModalBottomSheet<void>(
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context: context,
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builder: (BuildContext context) {
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return Container(
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height: 200,
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color: Colors.white,
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child: Padding(
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padding: const EdgeInsets.symmetric(horizontal: 20),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Text(
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text,
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style: TextStyle(fontSize: 16, color: Colors.black),
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),
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SizedBox(
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height: 20,
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),
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ElevatedButton(
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child: const Text('Ok'),
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onPressed: () => Navigator.pop(context),
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)
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],
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),
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),
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);
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},
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);
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}

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