131 lines
4.2 KiB
Dart
131 lines
4.2 KiB
Dart
import 'package:shared_preferences/shared_preferences.dart';
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import 'package:firebase_auth/firebase_auth.dart';
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/// Service for managing persistent user sessions
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class SessionService {
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static const String _rememberMeKey = 'remember_me';
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static const String _userEmailKey = 'user_email';
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static const String _userDisplayNameKey = 'user_display_name';
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static const String _lastLoginTimeKey = 'last_login_time';
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/// Save session preferences when user chooses "Remember me"
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static Future<void> saveSession({
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required bool rememberMe,
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required String email,
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String? displayName,
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}) async {
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try {
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final prefs = await SharedPreferences.getInstance();
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// Save remember me preference
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await prefs.setBool(_rememberMeKey, rememberMe);
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if (rememberMe) {
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// Save user details for auto-login
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await prefs.setString(_userEmailKey, email);
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if (displayName != null) {
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await prefs.setString(_userDisplayNameKey, displayName);
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}
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await prefs.setInt(_lastLoginTimeKey, DateTime.now().millisecondsSinceEpoch);
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} else {
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// Clear saved session if remember me is unchecked
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await clearSession();
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}
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print('DEBUG: Session saved - Remember me: $rememberMe, Email: $email');
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} catch (e) {
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print('DEBUG: Error saving session: $e');
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}
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}
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/// Check if user should be automatically logged in
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static Future<Map<String, dynamic>> shouldAutoLogin() async {
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try {
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final prefs = await SharedPreferences.getInstance();
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final rememberMe = prefs.getBool(_rememberMeKey) ?? false;
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final email = prefs.getString(_userEmailKey);
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final displayName = prefs.getString(_userDisplayNameKey);
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final lastLoginTime = prefs.getInt(_lastLoginTimeKey);
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print('DEBUG: Auto-login check - Remember me: $rememberMe, Email: $email');
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if (rememberMe && email != null) {
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// Check if session is not too old (optional: 30 days)
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if (lastLoginTime != null) {
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final lastLogin = DateTime.fromMillisecondsSinceEpoch(lastLoginTime);
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final now = DateTime.now();
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final daysSinceLogin = now.difference(lastLogin).inDays;
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if (daysSinceLogin <= 30) {
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return {
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'shouldAutoLogin': true,
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'email': email,
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'displayName': displayName,
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};
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} else {
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print('DEBUG: Session too old, clearing session');
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await clearSession();
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}
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}
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}
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return {'shouldAutoLogin': false};
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} catch (e) {
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print('DEBUG: Error checking auto-login: $e');
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return {'shouldAutoLogin': false};
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}
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}
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/// Clear saved session data
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static Future<void> clearSession() async {
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try {
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final prefs = await SharedPreferences.getInstance();
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await prefs.remove(_rememberMeKey);
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await prefs.remove(_userEmailKey);
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await prefs.remove(_userDisplayNameKey);
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await prefs.remove(_lastLoginTimeKey);
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print('DEBUG: Session cleared');
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} catch (e) {
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print('DEBUG: Error clearing session: $e');
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}
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}
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/// Get current session info
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static Future<Map<String, dynamic>> getCurrentSession() async {
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try {
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final prefs = await SharedPreferences.getInstance();
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return {
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'rememberMe': prefs.getBool(_rememberMeKey) ?? false,
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'email': prefs.getString(_userEmailKey),
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'displayName': prefs.getString(_userDisplayNameKey),
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'lastLoginTime': prefs.getInt(_lastLoginTimeKey),
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};
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} catch (e) {
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print('DEBUG: Error getting current session: $e');
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return {};
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}
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}
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/// Update session with current Firebase user
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static Future<void> updateSessionWithCurrentUser() async {
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try {
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final user = FirebaseAuth.instance.currentUser;
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if (user != null) {
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final currentSession = await getCurrentSession();
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if (currentSession['rememberMe'] == true) {
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await saveSession(
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rememberMe: true,
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email: user.email ?? '',
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displayName: user.displayName,
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);
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}
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}
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} catch (e) {
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print('DEBUG: Error updating session with current user: $e');
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}
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}
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}
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