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feat(app): Feed, recipe, blog posts, diet and plan show and index pages, state management, API implementation and layouts

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This commit is contained in:
maxxkim
2024-05-08 14:11:18 +03:00
parent 404b22e78a
commit 76a29ebf67
45 changed files with 2759 additions and 21 deletions
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62
lib/presentation/feed/blog_post_screen/bloc/blog_post_bloc.dart Normal file
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import 'package:equatable/equatable.dart';
import 'package:flutter/material.dart';
import 'package:flutter_dotenv/flutter_dotenv.dart';
import 'package:hive/hive.dart';
import 'package:http/http.dart' as http;
import 'dart:convert';
import '/core/app_export.dart';
import 'package:eatvio_app/presentation/feed/blog_post_screen/models/blog_post_model.dart';
part 'blog_post_event.dart';
part 'blog_post_state.dart';
/// A bloc that manages the state of a BlogPost according to the event that is dispatched to it.
class BlogPostBloc extends Bloc<BlogPostEvent, BlogPostState> {
BlogPostBloc(BlogPostState initialState) : super(initialState) {
on<BlogPostInitialEvent>(_onInitialize);
}
_onInitialize(
BlogPostInitialEvent event,
Emitter<BlogPostState> emit,
) async {
try {
final box = await Hive.openBox('token');
final token = box.get('token');
if (token == null) {
NavigatorService.popAndPushNamed(
AppRoutes.authScreen,
);
}
final String? blog_postID = state.blog_postModelObj?.blog_postID;
final response = await http.get(
Uri.parse(dotenv.env['SERVER_ROOT']! + '/feed/show/$blog_postID'),
headers: {
'Authorization': 'Bearer $token',
},
);
if (response.statusCode == 200) {
final data = jsonDecode(response.body);
if (data is Map<String, dynamic>) {
if (state is BlogPostLoadedState) {
var currentState = state as BlogPostLoadedState;
emit(currentState.copyWith(
blog_postModelObj: currentState.blog_postModelObj,
blog_post: currentState.blog_post));
} else {
emit(BlogPostLoadedState(blog_post: data));
print(data);
}
} else {
// Один или несколько ключевых полей отсутствуют, обрабатываем ошибку
emit(BlogPostErrorState('Некоторые необходимые данные отсутствуют.'));
}
} else {
// Статус ответа не равен 200, обрабатываем ошибку
emit(BlogPostErrorState('Ошибка сервера: ${response.statusCode}'));
}
} catch (e) {
// Ошибка при декодировании JSON или другая ошибка выполнения
emit(BlogPostErrorState('Ошибка при получении данных о чатах: $e'));
}
}
}

16
lib/presentation/feed/blog_post_screen/bloc/blog_post_event.dart Normal file
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// ignore_for_file: must_be_immutable
part of 'blog_post_bloc.dart';
/// Abstract class for all events that can be dispatched from the
///BlogPost widget.
///
/// Events must be immutable and implement the [Equatable] interface.
@immutable
abstract class BlogPostEvent extends Equatable {}
/// Event that is dispatched when the BlogPost widget is first created.
class BlogPostInitialEvent extends BlogPostEvent {
@override
List<Object?> get props => [];
}

52
lib/presentation/feed/blog_post_screen/bloc/blog_post_state.dart Normal file
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// ignore_for_file: must_be_immutable
part of 'blog_post_bloc.dart';
/// Represents the state of BlogPost in the application.
///
class BlogPostState extends Equatable {
BlogPostState({
this.blog_postModelObj,
});
BlogPostModel? blog_postModelObj;
@override
List<Object?> get props => [blog_postModelObj];
BlogPostState copyWith({BlogPostModel? blog_postModelObj}) {
return BlogPostState(
blog_postModelObj: blog_postModelObj ?? this.blog_postModelObj,
);
}
}
class BlogPostLoadedState extends BlogPostState {
BlogPostLoadedState({this.blog_postModelObj, this.blog_post});
BlogPostModel? blog_postModelObj;
Map<String, dynamic>? blog_post;
@override
List<Object?> get props => [blog_postModelObj, blog_post];
BlogPostLoadedState copyWith(
{BlogPostModel? blog_postModelObj, Map<String, dynamic>? blog_post}) {
return BlogPostLoadedState(
blog_postModelObj: blog_postModelObj ?? this.blog_postModelObj,
blog_post: blog_post ?? this.blog_post,
);
}
}
class BlogPostErrorState extends BlogPostState {
final String errorMessage;
BlogPostErrorState(this.errorMessage);
@override
List<Object> get props => [errorMessage];
}
class BlogPostInitialState extends BlogPostState {
BlogPostInitialState({required BlogPostModel blog_postModelObj})
: super(blog_postModelObj: blog_postModelObj);
}

200
lib/presentation/feed/blog_post_screen/blog_post_screen.dart Normal file
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import 'bloc/blog_post_bloc.dart';
import 'models/blog_post_model.dart';
import 'package:eatvio_app/core/app_export.dart';
import 'package:flutter/material.dart';
import 'package:eatvio_app/widgets/app_bar/custom_app_bar.dart';
import 'package:eatvio_app/widgets/app_bar/appbar_subtitle.dart';
import 'package:eatvio_app/widgets/app_bar/appbar_leading_image.dart';
import 'package:eatvio_app/widgets/app_bar/appbar_title_image.dart';
import 'package:eatvio_app/widgets/custom_bottom_bar.dart';
import 'package:cached_network_image/cached_network_image.dart';
import 'package:flutter_dotenv/flutter_dotenv.dart';
class BlogPostScreen extends StatelessWidget {
const BlogPostScreen({Key? key}) : super(key: key);
static Widget builder(BuildContext context) {
final blog_postID = ModalRoute.of(context)!.settings.arguments;
return BlocProvider<BlogPostBloc>(
create: (context) => BlogPostBloc(BlogPostState(
blog_postModelObj:
BlogPostModel(blog_postID: blog_postID.toString())))
..add(BlogPostInitialEvent()),
child: BlogPostScreen());
}
Widget build(BuildContext context) {
return BlocBuilder<BlogPostBloc, BlogPostState>(
builder: (context, state) {
if (state is BlogPostInitialState) {
// Это начальное состояние, данные ещё не загружены.
return Container(
color: Colors.white,
);
} else if (state is BlogPostLoadedState) {
// Данные загружены, можно строить экран.
return _buildBlogPost(context, state);
} else if (state is BlogPostErrorState) {
// Произошла ошибка при загрузке данных.
return Center(child: Text(state.errorMessage));
} else {
// Другие состояния, если они есть.
return Container(); // Пустой контейнер для необработанных состояний.
}
},
);
}
_buildBlogPost(BuildContext context, BlogPostLoadedState state) {
print(state.blog_post);
mediaQueryData = MediaQuery.of(context);
return SafeArea(
child: Scaffold(
resizeToAvoidBottomInset: false,
body: Container(
width: double.maxFinite,
decoration: AppDecoration.fillGray,
child: ListView(
children: [
SizedBox(height: 30.v),
Container(
margin: EdgeInsets.only(
left: 16.h,
right: 20.h,
bottom: 10.h,
),
padding: EdgeInsets.all(12.h),
decoration: BoxDecoration(
color: Colors.white,
borderRadius: const BorderRadius.all(Radius.circular(12)),
boxShadow: [
BoxShadow(
color: Colors.grey.withOpacity(0.5),
spreadRadius: 2,
blurRadius: 5,
offset: Offset(0, 3),
),
],
),
child: Column(mainAxisSize: MainAxisSize.min, children: [
CachedNetworkImage(
imageUrl: dotenv.env['STORAGE_URL']! +
(state.blog_post?['image'] ?? ''),
imageBuilder: (context, imageProvider) => CircleAvatar(
backgroundImage: imageProvider,
radius: 25,
),
placeholder: (context, url) =>
CircularProgressIndicator(),
errorWidget: (context, url, error) => CircleAvatar(
child: Icon(Icons.person),
backgroundColor: Colors.white,
radius: 25,
),
),
SizedBox(height: 16.0),
Text(state.blog_post?['title'],
style: CustomTextStyles.titleMediumBlack),
SizedBox(height: 8.0),
Text(
state.blog_post?['description'],
),
SizedBox(height: 16.0),
Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
ElevatedButton(
onPressed: () {
// Действие для редактирования
},
child: Text('Редактировать'),
),
ElevatedButton(
onPressed: () {
// Действие для удаления
},
child: Text('Удалить'),
),
],
)
]),
)
],
),
),
bottomNavigationBar: _buildBottomBar(context)));
}
/// Section Widget
_buildAppbar(BuildContext context) {
return CustomAppBar(
leadingWidth: 26.h,
leading: AppbarLeadingImage(
imagePath: ImageConstant.imgArrowLeft,
margin: EdgeInsets.only(
left: 16.h,
top: 18.v,
bottom: 25.v,
),
onTap: () => onTapArrowleftone(context),
),
title: Padding(
padding: EdgeInsets.only(left: 12.h),
child: Row(
children: [
AppbarTitleImage(
imagePath: ImageConstant.imgIconMoreHorizontal,
margin: EdgeInsets.only(bottom: 3.v),
),
Padding(
padding: EdgeInsets.only(
left: 12.h,
top: 2.v,
),
child: Column(
children: [
AppbarSubtitle(
text: "Валерий Леонтьев",
),
SizedBox(height: 3.v),
Text("Был в сети вчера", style: theme.textTheme.bodySmall!)
],
),
)
],
),
),
);
}
///Handling route based on bottom click actions
String getCurrentRoute(BottomBarEnum type) {
switch (type) {
case BottomBarEnum.tf:
return AppRoutes.blogPostScreen;
default:
return "/";
}
}
///Handling page based on route
Widget getCurrentPage(
BuildContext context,
String currentRoute,
) {
switch (currentRoute) {
case AppRoutes.blogPostScreen:
return BlogPostScreen.builder(context);
default:
return BlogPostScreen();
}
}
_buildBottomBar(BuildContext context) {
return CustomBottomBar(onChanged: (BottomBarEnum type) {});
}
/// Navigates to the previous screen.
onTapArrowleftone(BuildContext context) {
NavigatorService.goBack();
}
}

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lib/presentation/feed/blog_post_screen/models/blog_post_model.dart Normal file
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// ignore_for_file: must_be_immutable
import 'package:equatable/equatable.dart';
/// This class defines the variables used in the [blog_post_screen],
/// and is typically used to hold data that is passed between different parts of the application.
class BlogPostModel extends Equatable {
final String blog_postID;
BlogPostModel({required String blog_postID}) : blog_postID = blog_postID;
BlogPostModel copyWith(String blog_postID) {
return BlogPostModel(blog_postID: blog_postID);
}
@override
List<Object?> get props => [blog_postID];
}

70
lib/presentation/feed/feed_screen/bloc/feed_bloc.dart Normal file
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//import 'package:eatvio_app/presentation/auth/auth_screen/auth_screen.dart';
import 'dart:async';
import 'package:equatable/equatable.dart';
import 'package:flutter/material.dart';
import '/core/app_export.dart';
import 'package:eatvio_app/presentation/feed/feed_screen/models/feed_model.dart';
import 'package:http/http.dart' as http;
import 'dart:convert';
import 'package:hive/hive.dart';
import 'package:flutter_dotenv/flutter_dotenv.dart';
import 'package:image_picker/image_picker.dart';
part 'feed_event.dart';
part 'feed_state.dart';
/// A bloc that manages the state of a Feed according to the event that is dispatched to it.
class FeedBloc extends Bloc<FeedEvent, FeedState> {
FeedBloc(FeedState initialState) : super(initialState) {
on<FeedInitialEvent>(_onInitialize);
}
Future<void> _onInitialize(
FeedInitialEvent event,
Emitter<FeedState> emit,
) async {
try {
final box = await Hive.openBox('token');
final token = box.get('token');
if (token == null) {
NavigatorService.popAndPushNamed(
AppRoutes.authScreen,
); // Если токен есть, запускаем приложение
}
final response = await http.get(
Uri.parse(dotenv.env['SERVER_ROOT']! + '/feed/index'),
);
print('Got response');
if (response.statusCode == 200) {
print('Got 200');
final data = jsonDecode(response.body);
if (data is List<dynamic>) {
print('Got List');
if (state is FeedLoadedState) {
print('Got loaded');
var currentState = state as FeedLoadedState;
emit((currentState).copyWith(
posts: data,
myProfileModelObj: currentState.myProfileModelObj,
));
} else {
print('Got unloaded');
emit(FeedLoadedState(
posts: data,
));
}
} else {
// Один или несколько ключевых полей отсутствуют, обрабатываем ошибку
emit(FeedErrorState('Неверный формат ответа API.'));
}
} else {
// Статус ответа не равен 200, обрабатываем ошибку
emit(FeedErrorState('Ошибка сервера: ${response.statusCode}'));
}
} catch (e) {
// Ошибка при декодировании JSON или другая ошибка выполнения
emit(FeedErrorState('Ошибка при получении данных ленты: $e'));
}
}
}

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lib/presentation/feed/feed_screen/bloc/feed_event.dart Normal file
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// ignore_for_file: must_be_immutable
part of 'feed_bloc.dart';
/// Abstract class for all events that can be dispatched from the
///Feed widget.
///
/// Events must be immutable and implement the [Equatable] interface.
@immutable
abstract class FeedEvent extends Equatable {}
/// Event that is dispatched when the Feed widget is first created.
class FeedInitialEvent extends FeedEvent {
@override
List<Object?> get props => [];
}
class UploadAvatar extends FeedEvent {
UploadAvatar(this.image);
final XFile image;
@override
List<Object> get props => [image];
}

49
lib/presentation/feed/feed_screen/bloc/feed_state.dart Normal file
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// ignore_for_file: must_be_immutable
part of 'feed_bloc.dart';
class FeedState extends Equatable {
const FeedState({this.myProfileModelObj});
final FeedModel? myProfileModelObj;
@override
List<Object?> get props => [myProfileModelObj];
}
class FeedInitialState extends FeedState {
FeedInitialState({required FeedModel myProfileModelObj})
: super(myProfileModelObj: myProfileModelObj);
}
/// Represents the state of Feed in the application.
class FeedLoadedState extends FeedState {
FeedLoadedState({this.myProfileModelObj, this.posts})
: super(myProfileModelObj: null);
FeedModel? myProfileModelObj;
List<dynamic>? posts;
@override
List<Object?> get props => [
myProfileModelObj,
posts,
];
FeedLoadedState copyWith({
FeedModel? myProfileModelObj,
List<dynamic>? posts,
}) {
return FeedLoadedState(
myProfileModelObj: myProfileModelObj ?? this.myProfileModelObj,
posts: posts ?? this.posts,
);
}
}
class FeedErrorState extends FeedState {
final String errorMessage;
const FeedErrorState(this.errorMessage);
@override
List<Object> get props => [errorMessage];
}

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lib/presentation/feed/feed_screen/feed_screen.dart Normal file
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import 'bloc/feed_bloc.dart';
import 'models/feed_model.dart';
import 'package:eatvio_app/core/app_export.dart';
import 'package:eatvio_app/widgets/app_bar/appbar_subtitle.dart';
import 'package:eatvio_app/widgets/app_bar/appbar_leading_image.dart';
import 'package:eatvio_app/widgets/app_bar/custom_app_bar.dart';
import 'package:eatvio_app/widgets/custom_bottom_bar.dart';
import 'package:cached_network_image/cached_network_image.dart';
import 'package:flutter_dotenv/flutter_dotenv.dart';
import 'package:flutter/material.dart';
class FeedScreen extends StatelessWidget {
static Widget builder(BuildContext context) {
return BlocProvider<FeedBloc>(
create: (context) => FeedBloc(FeedState(myProfileModelObj: FeedModel()))
..add(FeedInitialEvent()),
child: FeedScreen());
}
Widget build(BuildContext context) {
return BlocBuilder<FeedBloc, FeedState>(
builder: (context, state) {
if (state is FeedInitialState) {
// Это начальное состояние, данные ещё не загружены.
return CircularProgressIndicator(
color: Colors.white,
backgroundColor: Colors.white,
);
} else if (state is FeedLoadedState) {
// Данные загружены, можно строить экран.
return _buildSetingsScreen(context, state);
} else {
// Другие состояния, если они есть.
return Container(); // Пустой контейнер для необработанных состояний.
}
},
);
}
_buildSetingsScreen(BuildContext context, FeedLoadedState state) {
mediaQueryData = MediaQuery.of(context);
print(state.posts);
return SafeArea(
child: Scaffold(
backgroundColor: Colors.grey[200],
resizeToAvoidBottomInset: true,
body: SingleChildScrollView(
child: Container(
width: double.maxFinite,
decoration: BoxDecoration(color: Colors.grey[200]),
child: Padding(
padding: EdgeInsets.all(16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
SizedBox(height: 10),
Container(
decoration: BoxDecoration(
color: Colors.white,
borderRadius: const BorderRadius.all(Radius.circular(12)),
boxShadow: [
BoxShadow(
color: Colors.grey.withOpacity(0.5),
spreadRadius: 2,
blurRadius: 5,
offset: Offset(0, 3),
),
],
),
child: CustomAppBar(
height: 54.v,
leadingWidth: 28.h,
leading: AppbarLeadingImage(
imagePath: ImageConstant.imgArrowLeft,
margin: EdgeInsets.only(
left: 16.h, top: 15.v, bottom: 15.v),
onTap: onTapBack(context),
),
title: Padding(
padding: EdgeInsets.only(left: 20.h),
child: Row(
children: [
AppbarSubtitle(
text: "Лента",
margin: EdgeInsets.only(
left: 80.h, top: 12.v, bottom: 9.v),
),
],
),
),
),
),
SizedBox(height: 20),
ListView.builder(
shrinkWrap: true, // Add this line
itemCount: state.posts?.length ?? 0,
itemBuilder: (context, index) {
final post = state.posts?[index];
return Container(
margin: EdgeInsets.only(bottom: 10),
decoration: BoxDecoration(
color: Colors.white,
borderRadius:
const BorderRadius.all(Radius.circular(12)),
boxShadow: [
BoxShadow(
color: Colors.grey.withOpacity(0.5),
spreadRadius: 2,
blurRadius: 5,
offset: Offset(0, 3),
),
],
),
child: ListTile(
leading: CachedNetworkImage(
imageUrl:
dotenv.env['STORAGE_URL']! + post['image'],
imageBuilder: (context, imageProvider) =>
CircleAvatar(
backgroundImage: imageProvider,
radius: 25,
),
placeholder: (context, url) =>
CircularProgressIndicator(),
errorWidget: (context, url, error) =>
CircleAvatar(
child: Icon(Icons.person),
backgroundColor: Colors.white,
radius: 25,
),
),
title: Text(
post?['title'] ?? '',
style: CustomTextStyles.titleMediumSemiBold,
),
subtitle: Text(post?['description'] ?? ''),
onTap: () => Navigator.pushNamed(
context,
AppRoutes.blogPostScreen,
arguments: post?['id'].toString(),
),
));
},
),
],
),
),
),
),
bottomNavigationBar: _buildBottomBar(context),
),
);
}
Function onTapBack(BuildContext context) {
return () {
onTapArrowLeft(context);
};
}
_buildBottomBar(BuildContext context) {
return CustomBottomBar(onChanged: (BottomBarEnum type) {});
}
onTapArrowLeft(BuildContext context) {
NavigatorService.goBack();
}
}

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lib/presentation/feed/feed_screen/models/feed_model.dart Normal file
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// ignore_for_file: must_be_immutable
import 'package:equatable/equatable.dart';
/// This class defines the variables used in the [k0_page],
/// and is typically used to hold data that is passed between different parts of the application.
class FeedModel extends Equatable {
FeedModel();
FeedModel copyWith() {
return FeedModel();
}
@override
List<Object?> get props => [];
}