Auth screen layout

lib/presentation/auth/auth_screen/auth_screen.dart

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+import 'bloc/auth_bloc.dart';
+import 'models/auth_model.dart';
+import 'package:eatvio_app/core/app_export.dart';
+import 'package:eatvio_app/widgets/app_bar/appbar_title_image.dart';
+import 'package:eatvio_app/widgets/app_bar/custom_app_bar.dart';
+import 'package:validators/validators.dart';
+import 'package:eatvio_app/widgets/next_step_button.dart';
+import 'package:eatvio_app/widgets/custom_text_form_field.dart';
+import 'package:flutter/material.dart';
+
+class AuthScreen extends StatelessWidget {
+  static Widget builder(BuildContext context) {
+    return BlocProvider<AuthBloc>(
+      create: (context) => AuthBloc(
+        AuthState(
+          authModelObj: AuthModel(),
+        ),
+      )..add(AuthInitialEvent()),
+      child: AuthScreen(),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    mediaQueryData = MediaQuery.of(context);
+    return Scaffold(
+        resizeToAvoidBottomInset: false,
+        appBar: _buildAppBar(context),
+        body: Container(
+            width: double.maxFinite,
+            padding: EdgeInsets.symmetric(horizontal: 16.h, vertical: 9.v),
+            child: Column(children: [
+              SizedBox(height: 39.v),
+              Text("user_authorization".tr,
+                  style: theme.textTheme.headlineSmall),
+              SizedBox(height: 60.v),
+              Text("email".tr, style: theme.textTheme.bodyLarge),
+              SizedBox(height: 3.v),
+              BlocSelector<AuthBloc, AuthState, TextEditingController?>(
+                  selector: (state) => state.emailController,
+                  builder: (context, emailController) {
+                    return CustomTextFormField(
+                        controller: emailController,
+                        textInputAction: TextInputAction.done);
+                  }),
+              SizedBox(height: 22.v),
+              Text("password".tr, style: theme.textTheme.bodyLarge),
+              SizedBox(height: 5.v),
+              BlocSelector<AuthBloc, AuthState, TextEditingController?>(
+                  selector: (state) => state.passwordController,
+                  builder: (context, passwordController) {
+                    return CustomTextFormField(
+                      obscureText: true,
+                      controller: passwordController,
+                    );
+                  }),
+              Spacer(),
+              NextStepButton(
+                  text: "no_account".tr.toUpperCase(),
+                  margin:
+                      EdgeInsets.only(left: 16.h, right: 16.h, bottom: 50.v),
+                  buttonStyle: CustomButtonStyles.outlinePrimaryTL15,
+                  onPressed: () {
+                    Navigator.pushNamed(
+                        context, AppRoutes.languageSelectScreen);
+                  }),
+              BlocBuilder<AuthBloc, AuthState>(builder: (context, state) {
+                return NextStepButton(
+                    text: "authentificate".tr.toUpperCase(),
+                    margin:
+                        EdgeInsets.only(left: 16.h, right: 16.h, bottom: 50.v),
+                    buttonStyle: CustomButtonStyles.outlinePrimaryTL15,
+                    onPressed: () {
+                      List<String> errors = validateFields(
+                          state.emailController!.text,
+                          state.passwordController!.text);
+                      if (errors.isEmpty) {
+                        Navigator.pushNamed(
+                          context,
+                          AppRoutes.myProfile,
+                        );
+                      } else {
+                        String errorMessage = '';
+
+                        for (var error in errors) {
+                          errorMessage += error + '\n\n';
+                        }
+
+                        showDialog(
+                          context: context,
+                          builder: (context) => AlertDialog(
+                            title: Text('Ошибка'),
+                            content: Text(errorMessage),
+                            actions: [
+                              TextButton(
+                                onPressed: () {
+                                  Navigator.pop(context);
+                                },
+                                child: Text('OK'),
+                              ),
+                            ],
+                          ),
+                        );
+                      }
+                    });
+              }),
+            ])));
+  }
+
+  /// Section Widget
+  PreferredSizeWidget _buildAppBar(BuildContext context) {
+    return CustomAppBar(
+        leadingWidth: 29.h,
+        centerTitle: true,
+        title: AppbarTitleImage(imagePath: ImageConstant.imgLogoEatvio));
+  }
+
+  List<String> validateFields(String email, String password) {
+    List<String> errors = [];
+
+    if (!isEmail(email)) {
+      errors.add('email_invalid'.tr);
+    }
+
+    if (email.isEmpty) {
+      errors.add('email_empty'.tr);
+    }
+
+    if (password.isEmpty) {
+      errors.add('password_empty'.tr);
+    }
+
+    if (password.length < 6) {
+      errors.add('password_short'.tr);
+    }
+
+    return errors;
+  }
+}

lib/presentation/auth/auth_screen/bloc/auth_bloc.dart

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+import 'package:equatable/equatable.dart';
+import 'package:flutter/material.dart';
+import '/core/app_export.dart';
+import 'package:eatvio_app/presentation/auth/auth_screen/models/auth_model.dart';
+part 'auth_event.dart';
+part 'auth_state.dart';
+
+/// A bloc that manages the state of a Auth according to the event that is dispatched to it.
+class AuthBloc extends Bloc<AuthEvent, AuthState> {
+  AuthBloc(AuthState initialState) : super(initialState) {
+    on<AuthInitialEvent>(_onInitialize);
+  }
+
+  _onInitialize(
+    AuthInitialEvent event,
+    Emitter<AuthState> emit,
+  ) async {
+    emit(state.copyWith(
+        emailController: TextEditingController(),
+        passwordController: TextEditingController()));
+  }
+}

lib/presentation/auth/auth_screen/bloc/auth_event.dart

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+// ignore_for_file: must_be_immutable
+
+part of 'auth_bloc.dart';
+
+/// Abstract class for all events that can be dispatched from the
+///Credentials widget.
+///
+/// Events must be immutable and implement the [Equatable] interface.
+@immutable
+abstract class AuthEvent extends Equatable {}
+
+/// Event that is dispatched when the Credentials widget is first created.
+class AuthInitialEvent extends AuthEvent {
+  @override
+  List<Object?> get props => [];
+}

lib/presentation/auth/auth_screen/bloc/auth_state.dart

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+// ignore_for_file: must_be_immutable
+
+part of 'auth_bloc.dart';
+
+/// Represents the state of Auth in the application.
+class AuthState extends Equatable {
+  AuthState({
+    this.emailController,
+    this.passwordController,
+    this.authModelObj,
+  });
+
+  TextEditingController? emailController;
+
+  TextEditingController? passwordController;
+
+  AuthModel? authModelObj;
+
+  @override
+  List<Object?> get props => [
+        emailController,
+        passwordController,
+        authModelObj,
+      ];
+  AuthState copyWith({
+    TextEditingController? emailController,
+    TextEditingController? passwordController,
+    AuthModel? authModelObj,
+  }) {
+    return AuthState(
+      emailController: emailController ?? this.emailController,
+      passwordController: passwordController ?? this.passwordController,
+      authModelObj: authModelObj ?? this.authModelObj,
+    );
+  }
+}

lib/presentation/auth/auth_screen/models/auth_model.dart

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+// ignore_for_file: must_be_immutable
+
+import 'package:equatable/equatable.dart';
+
+/// This class defines the variables used in the [auth_screen],
+/// and is typically used to hold data that is passed between different parts of the application.
+class AuthModel extends Equatable {
+  AuthModel();
+
+  AuthModel copyWith() {
+    return AuthModel();
+  }
+
+  @override
+  List<Object?> get props => [];
+}