add login invalid credentials error and logout funcationality

lib/bloc/user/user_bloc.dart

@@ -1,3 +1,6 @@
+import 'dart:async';
+import 'dart:io';
+
 import 'package:barcode_scan2/barcode_scan2.dart';
 import 'package:bloc/bloc.dart';
 import 'package:equatable/equatable.dart';
@@ -7,6 +10,7 @@ import 'package:unit2/screens/unit2/login/functions/get_app_version.dart';
 import 'package:unit2/sevices/login_service/auth_service.dart';
 
 import '../../utils/scanner.dart';
+import '../../utils/text_container.dart';
 
 part 'user_event.dart';
 part 'user_state.dart';
@@ -14,6 +18,7 @@ part 'user_state.dart';
 class UserBloc extends Bloc<UserEvent, UserState> {
   UserData? _userData;
   VersionInfo? _versionInfo;
+  String? _apkVersion;
   UserBloc() : super(UserInitial()) {
     // this event is called when opening the app to check if
     // there is new app version
@@ -23,7 +28,8 @@ class UserBloc extends Bloc<UserEvent, UserState> {
         VersionInfo versionInfo = await AuthService.instance.getVersionInfo();
         _versionInfo = versionInfo;
         String apkVersion = await getAppVersion();
-        emit(VersionLoaded(versionInfo: _versionInfo,apkVersion: apkVersion));
+        _apkVersion = apkVersion;
+        emit(VersionLoaded(versionInfo: _versionInfo,apkVersion: _apkVersion));
       } catch (e) {
         emit(UserError(
           message: e.toString(),
@@ -31,7 +37,7 @@ class UserBloc extends Bloc<UserEvent, UserState> {
       }
     });
     on<LoadVersion>((event, emit) {
-      emit(VersionLoaded(versionInfo: _versionInfo));
+      emit(VersionLoaded(versionInfo: _versionInfo,apkVersion: _apkVersion));
     });
     on<UserLogin>((event, emit) async {
       try {
@@ -39,8 +45,12 @@ class UserBloc extends Bloc<UserEvent, UserState> {
             .webLogin(username: event.username, password: event.password);
         _userData = userData;
         emit(UserLoggedIn(userData: _userData));
-      } catch (e) {
+         } on TimeoutException catch (_) {
-        emit(UserError(message: e.toString()));
+        emit(InternetTimeout(message: timeoutError));
+      }on SocketException catch (_){
+          emit(InternetTimeout(message:timeoutError));
+      }on Error catch(_){
+        emit(InvalidCredentials(message: "Invalid username or password"));
       }
     });
     on<UuidLogin>((event, emit) async {
@@ -49,8 +59,12 @@ class UserBloc extends Bloc<UserEvent, UserState> {
             .qrLogin(uuid: event.uuid, password: event.password);
         _userData = userData;
         emit(UserLoggedIn(userData: _userData));
-      } catch (e) {
+      } on TimeoutException catch (_) {
-        emit(UserError(message: e.toString()));
+        emit(InternetTimeout(message: timeoutError));
+      }on SocketException catch (_){
+          emit(InternetTimeout(message:timeoutError));
+      }on Error catch(_){
+        emit(InvalidCredentials(message: "Invalid username or password"));
       }
     });
     on<LoadLoggedInUser>((event, emit) {

lib/bloc/user/user_state.dart

@@ -48,3 +48,15 @@ class UuidLoaded extends UserState{
     @override
   List<Object> get props => [uuid];
 }
+
+class InternetTimeout extends UserState{
+  final String message;
+  InternetTimeout({required this.message});
+  @override
+  List<Object> get props => [message];
+}
+
+class InvalidCredentials extends UserState{
+  final String message ;
+  InvalidCredentials ({required this.message});
+}

lib/screens/unit2/homepage.dart/components/menu-screen.dart

@@ -62,7 +62,7 @@ class _MenuScreenState extends State<MenuScreen> {
               Expanded(
                   child: Align(
                 alignment: FractionalOffset.bottomLeft,
-                child: getTile(WebSymbols.logout, "Logout", 'login', context,
+                child: getTile(WebSymbols.logout, "Logout", '/', context,
                     widget.userData!),
               )),
             ],

lib/screens/unit2/login/login.dart

@@ -7,6 +7,7 @@ import 'package:fluttericon/font_awesome5_icons.dart';
 import 'package:form_builder_validators/form_builder_validators.dart';
 import 'package:flutter_progress_hud/flutter_progress_hud.dart';
 import 'package:unit2/screens/unit2/login/components/update_required.dart';
+import 'package:unit2/utils/alerts.dart';
 import 'package:unit2/utils/text_container.dart';
 import 'package:unit2/widgets/error_state.dart';
 import '../../../bloc/user/user_bloc.dart';
@@ -43,8 +44,24 @@ class _UniT2LoginState extends State<UniT2Login> {
               Navigator.pushReplacementNamed(context, '/module-screen');
             }
             if (state is UuidLoaded) {
+              final progress = ProgressHUD.of(context);
+              progress!.dismiss();
               Navigator.pushNamed(context, '/qr-login');
             }
+            if (state is UserError) {
+              final progress = ProgressHUD.of(context);
+              progress!.dismiss();
+            }
+            if (state is InternetTimeout) {
+              final progress = ProgressHUD.of(context);
+              progress!.dismiss();
+            }
+            if (state is InvalidCredentials) {
+              final progress = ProgressHUD.of(context);
+              progress!.dismiss();
+              errorAlert(context, "Error Login", state.message);
+              context.read<UserBloc>().add(LoadVersion());
+            }
           }, builder: (context, state) {
             if (state is VersionLoaded) {
               return Builder(builder: (context) {
@@ -293,6 +310,7 @@ class _UniT2LoginState extends State<UniT2Login> {
                     ),
                   );
                 } else {
+                  //New update available
                   return Update(
                     apkVersion: state.apkVersion!,
                     currenVersion: state.versionInfo!.version!,
@@ -305,6 +323,11 @@ class _UniT2LoginState extends State<UniT2Login> {
                 message: state.message,
               );
             }
+            if (state is InternetTimeout) {
+              return ErrorState(
+                message: state.message,
+              );
+            }
             if (state is SplashScreen) {
               return const UniTSplashScreen();
             }

lib/utils/urls.dart

@@ -4,8 +4,8 @@ class Url {
 
   String host() {
     // return '192.168.10.221:3003';
-    return 'agusandelnorte.gov.ph';
+    // return 'agusandelnorte.gov.ph';
-    // return 'devweb.agusandelnorte.gov.ph';
+    return 'devweb.agusandelnorte.gov.ph';
   }
 
   String authentication() {