Lab 7 by Ryabov Dmitry

.github/workflows/lab7.yaml

@@ -0,0 +1,36 @@
+name: Lab 7 CI
+
+on:
+  push:
+    branches:
+      - lab7
+  pull_request:
+    branches:
+      - lab7
+
+jobs:
+  build-web:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: subosito/flutter-action@v2
+        with:
+          channel: stable
+          flutter-version: 3.23.0-0.1.pre
+      - run: flutter pub get
+      - run: flutter analyze lib/templates/lab7/main.dart
+      - run: flutter test test/lab7_test.dart
+      - run: flutter build web --release lib/templates/lab7/main.dart
+
+  build-windows:
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: subosito/flutter-action@v2
+        with:
+          channel: stable
+          flutter-version: 3.23.0-0.1.pre
+      - run: flutter pub get
+      - run: flutter analyze lib/templates/lab7/main.dart
+      - run: flutter test test/lab7_test.dart
+      - run: flutter build windows --release lib/templates/lab7/main.dart

Dockerfile

@@ -1,13 +1,17 @@
 FROM debian:latest AS build-env
 
-RUN apt-get update 
+RUN apt-get update -y && apt-get upgrade -y
 # Add apt-get install for flutter linux from 
 # https://docs.flutter.dev/get-started/install/linux/desktop?tab=download
+RUN apt-get install -y curl git unzip xz-utils zip libglu1-mesa
 RUN apt-get clean
 
+
 # TODO clone original flutter github repo
+RUN git -v
+RUN git clone https://github.com/flutter/flutter.git /usr/local/flutter
 
-ENV PATH="/usr/local/flutter/bin:/usr/local/flutter/bin/cache/dart-sdk/bin:${PATH}"
+ENV PATH="${PATH}:/usr/local/flutter/bin:/usr/local/flutter/bin/cache/dart-sdk/bin"
 
 RUN flutter doctor -v
 
@@ -21,7 +25,10 @@ COPY . /app/
 WORKDIR /app/
 
 # TODO get dependencies
+RUN flutter pub get
+
 # TODO build web from needed file
+RUN flutter build web --release ./lib/templates/lab7/main.dart
 
 FROM nginx:1.21.1-alpine
 

analysis_options.yaml

@@ -1 +1,6 @@
 include: package:flutter_lints/flutter.yaml
+
+analyzer:
+  errors:
+    avoid_unnecessary_containers: ignore
+    prefer_const_constructors: ignore

lib/templates/lab1/lab1.dart

@@ -1,5 +1,4 @@
 import 'package:flutter/material.dart';
-import 'package:flutter/widgets.dart';
 
 void main() => runApp(const Lab1());
 
@@ -22,13 +21,16 @@ class LAb1HomePage extends StatelessWidget {
     return Scaffold(
       backgroundColor: Colors.white,
       appBar: AppBar(
+        leading: const Icon(Icons.stars),
         title: const Text('Lab 1'),
+        backgroundColor: Colors.teal,
+        elevation: 4,
       ),
-      body: myWidget(),
+      body: myWidget(context),
     );
   }
 
-  Widget myWidget() {
+  Widget myWidget(BuildContext context) {
     return SingleChildScrollView(
       child: Column(
         children: [
@@ -47,7 +49,7 @@ class LAb1HomePage extends StatelessWidget {
           const SizedBox(
             height: 25,
           ),
-          exercise4(),
+          exercise4(context),
           const SizedBox(
             height: 25,
           ),
@@ -59,45 +61,72 @@ class LAb1HomePage extends StatelessWidget {
 
   Widget exercise1() {
     return const Text(
-      "Hello, Flutter!",
+      'Flutter Rules',
+      textAlign: TextAlign.center,
       style: TextStyle(
-        fontSize: 30,
-        color: Colors.lightBlue,
-        fontWeight: FontWeight.bold),
-        );
+        fontWeight: FontWeight.w900,
+        fontSize: 37.0,
+        color: Colors.teal,
+      ),
+    );
   }
 
   Widget exercise2() {
     return const Icon(
-      Icons.favorite,
-      size: 100,
-      color: Colors.red,
+      Icons.tv,
+      color: Colors.teal,
+      size: 42.0,
     );
   }
 
   Widget exercise3() {
-    return const Image(
-      width: 100, height: 100, image: NetworkImage('https://flutter.github.io/assets-for-api-docs/assets/widgets/owl.jpg'),
+    return Image.network(
+      'https://i.pinimg.com/736x/b7/43/26/b74326865ca5feff316e6416a1b73ddc.jpg',
+      width: 48.0,
+      height: 64.0,
+      fit: BoxFit.fill,
     );
   }
 
-  printPressed() {
-    print("Pressed");
-  }
-
-  Widget exercise4() {
+  Widget exercise4(BuildContext context) {
     return TextButton(
-      onPressed: printPressed,
-      child: const Text('CLICK ME!'),
-      );
+      style: TextButton.styleFrom(
+        foregroundColor: Colors.tealAccent[700],
+      ),
+      child: const Text('Press me'),
+      onPressed: () {
+        ScaffoldMessenger.of(context).showSnackBar(const SnackBar(
+          content: Text('Pressed'),
+        ));
+      },
+    );
   }
 
   Widget exercise5() {
     return Column(
-      children: [
-        Container(color: Colors.blue, padding: const EdgeInsets.all(50), child: const Text("This is home Icon in Container!")),
-        Container(color: Colors.red, margin: const EdgeInsets.all(100), child: const Icon(Icons.home)),
-      ]
+      children: <Widget>[
+        Container(
+          padding: const EdgeInsets.all(16.0),
+          decoration: const BoxDecoration(
+            color: Colors.teal,
+            borderRadius: BorderRadius.all(Radius.circular(30.0)),
+          ),
+          child: const Text(
+            'There\'s a Column!',
+            style: TextStyle(color: Colors.white, fontWeight: FontWeight.w700),
+          ),
+        ),
+        Container(
+          padding: const EdgeInsets.all(32.0),
+          margin: const EdgeInsets.fromLTRB(4.0, 16.0, 4.0, 8.0),
+          decoration: const FlutterLogoDecoration(),
+          child: const Icon(
+            Icons.egg_sharp,
+            color: Colors.blue,
+            size: 25.0,
+          ),
+        ),
+      ],
     );
   }
 }

lib/templates/lab2/lab2.dart

@@ -1,15 +1,172 @@
-class Book {
-  // your code here
+import 'package:flutter/material.dart';
+
+void main() => runApp(const Lab2());
+
+class Lab2 extends StatelessWidget {
+  const Lab2({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+        home: Scaffold(
+      backgroundColor: Colors.white,
+      appBar: AppBar(
+        leading: const Icon(Icons.stars),
+        title: const Text('Lab 2'),
+        backgroundColor: Colors.teal,
+        elevation: 4,
+      ),
+      body: SingleChildScrollView(
+        child: Column(
+          children: [
+            element(ex1()),
+            element(ex2()),
+            element(ex3()),
+            element(ex4()),
+            element(ex5()),
+          ],
+        ),
+      ),
+    ));
+  }
+
+  Widget element(Widget widget) {
+    return Container(
+      margin: const EdgeInsets.all(16.0),
+      child: widget,
+    );
+  }
+
+  Widget ex1() {
+    List<Book> books = [
+      Book('Book1', 'Author1', 13),
+      Book('Book2', 'Author2', 42),
+      Book('Book3', 'Author3', 37)
+    ];
+    List<Text> details = [];
+    for (final book in books) {
+      details.add(Text(book.bookDetails()));
+    }
+    return Column(
+      children: details,
+    );
+  }
+
+  Widget ex2() {
+    List<FictionBook> books = [
+      FictionBook('Book1', 'Author1', 13, 'Thriller'),
+      FictionBook('Book2', 'Author2', 42, 'Comedy'),
+      FictionBook('Book3', 'Author3', 37, 'Detective')
+    ];
+    List<Text> details = [];
+    for (final book in books) {
+      details.add(Text(book.bookDetails()));
+    }
+    return Column(
+      children: details,
+    );
+  }
+
+  Widget ex3() {
+    List<Book> books = [
+      Book('Book1', 'Author1', 13),
+      Book('Book2', 'Author2', 42),
+      Book('Book3', 'Author3', 37)
+    ];
+    List<Text> details = [];
+    for (final book in books) {
+      details.add(Text(book.toJson().toString()));
+    }
+    return Column(
+      children: details,
+    );
+  }
+
+  Widget ex4() {
+    return Column(
+      children: [
+        Text(
+            'length: 15, width 22, area: ${calculateArea(width: 22, length: 15)}'),
+        Text(
+            'radius: 37, area: ${calculateArea(length: 37, width: 0, shape: 'circle')}')
+      ],
+    );
+  }
+
+  Widget ex5() {
+    List<User> users = [
+      User('Book1', email: 'Author1', age: 13),
+      User('Book2', age: 42),
+      User('Book3', email: 'Author3')
+    ];
+    List<Text> details = [];
+    for (final book in users) {
+      details.add(Text(book.printUserDetails()));
+    }
+    return Column(
+      children: details,
+    );
+  }
 }
 
-class FictionBook {
-  // your code here
+class Book with JsonSerializable {
+  String title;
+  String author;
+  int numOfPages;
+
+  Book(this.title, this.author, this.numOfPages);
+
+  String bookDetails() {
+    return "$author - $title ($numOfPages)";
+  }
+}
+
+class FictionBook extends Book {
+  String genre;
+
+  FictionBook(super.title, super.author, super.numOfPages, this.genre);
+
+  @override
+  String bookDetails() {
+    return "$author - $title <$genre> ($numOfPages)";
+  }
 }
 
 mixin JsonSerializable {
-  // your code here
+  Map<String, dynamic> toJson() {
+    Map<String, dynamic> json = {};
+    switch (runtimeType) {
+      case const (Book):
+        Book book = this as Book;
+        json['title'] = book.title;
+        json['author'] = book.author;
+        json['numOfPages'] = book.numOfPages;
+        return json;
+    }
+    return json;
+  }
 }
 
-class User{
-  // your code here
+double calculateArea(
+    {required double width,
+    required double length,
+    String shape = 'rectangle'}) {
+  switch (shape) {
+    case 'circle':
+      return 3.14 * length * length;
+    default:
+      return length * width;
+  }
+}
+
+class User {
+  String name;
+  int? age;
+  String? email;
+
+  User(this.name, {this.age, this.email});
+
+  String printUserDetails() {
+    return 'Name: $name\nAge: ${age ?? "N/A"}\nEmail: ${email ?? "N/A"}';
+  }
 }