lab_5

lib/data/dtos/characters_dto.dart

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+import 'package:json_annotation/json_annotation.dart';
+
+part 'characters_dto.g.dart';
+
+@JsonSerializable(createToJson: false)
+class CharactersDto {
+  final List<CharacterDataDto>? data;
+
+  const CharactersDto({this.data});
+
+  factory CharactersDto.fromJson(Map<String, dynamic> json) => _$CharactersDtoFromJson(json);
+}
+
+@JsonSerializable(createToJson: false)
+class CharacterDataDto {
+  final String? id;
+  final String? type;
+  final CharacterAttributesDataDto? attributes;
+
+  const CharacterDataDto({this.id, this.type, this.attributes});
+
+  factory CharacterDataDto.fromJson(Map<String, dynamic> json) => _$CharacterDataDtoFromJson(json);
+}
+
+@JsonSerializable(createToJson: false)
+class CharacterAttributesDataDto {
+  final String? name;
+  final String? born;
+  final String? died;
+  final String? image;
+
+  const CharacterAttributesDataDto({this.name, this.born, this.died, this.image});
+
+  factory CharacterAttributesDataDto.fromJson(Map<String, dynamic> json) =>
+      _$CharacterAttributesDataDtoFromJson(json);
+}

lib/data/dtos/characters_dto.g.dart

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+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'characters_dto.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+CharactersDto _$CharactersDtoFromJson(Map<String, dynamic> json) =>
+    CharactersDto(
+      data: (json['data'] as List<dynamic>?)
+          ?.map((e) => CharacterDataDto.fromJson(e as Map<String, dynamic>))
+          .toList(),
+    );
+
+CharacterDataDto _$CharacterDataDtoFromJson(Map<String, dynamic> json) =>
+    CharacterDataDto(
+      id: json['id'] as String?,
+      type: json['type'] as String?,
+      attributes: json['attributes'] == null
+          ? null
+          : CharacterAttributesDataDto.fromJson(
+              json['attributes'] as Map<String, dynamic>),
+    );
+
+CharacterAttributesDataDto _$CharacterAttributesDataDtoFromJson(
+        Map<String, dynamic> json) =>
+    CharacterAttributesDataDto(
+      name: json['name'] as String?,
+      born: json['born'] as String?,
+      died: json['died'] as String?,
+      image: json['image'] as String?,
+    );

lib/data/mappers/characters_mapper.dart

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+import 'package:pmd_labs/data/dtos/characters_dto.dart';
+import 'package:pmd_labs/domain/models/card.dart';
+
+const _imagePlaceholder =
+    'https://upload.wikimedia.org/wikipedia/en/archive/b/b1/20210811082420%21Portrait_placeholder.png';
+
+extension CharacterDataDtoToModel on CharacterDataDto {
+  CardData toDomain() => CardData(
+    attributes?.name ?? 'UNKNOWN',
+    imageUrl: attributes?.image ?? _imagePlaceholder,
+    descriptionText: _makeDescriptionText(attributes?.born, attributes?.died),
+  );
+
+  String _makeDescriptionText(String? born, String? died) {
+    return born != null && died != null
+        ? '$born - $died'
+        : born != null
+        ? 'born: $born'
+        : died != null
+        ? 'died: $died'
+        : '';
+  }
+}

lib/data/repositories/api_interface.dart

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+import 'package:pmd_labs/domain/models/card.dart';
+
+typedef OnErrorCallback = void Function(String? error);
+
+abstract class ApiInterface {
+  Future<List<CardData>?> loadData({OnErrorCallback? onError});
+}

lib/data/repositories/mock_repository.dart

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+import 'package:flutter/material.dart';
+import 'package:pmd_labs/data/repositories/api_interface.dart';
+import 'package:pmd_labs/domain/models/card.dart';
+
+class MockRepository extends ApiInterface {
+  @override
+  Future<List<CardData>?> loadData({OnErrorCallback? onError}) async {
+    return [
+      CardData(
+        'Анекдот №1',
+        descriptionText:   '— Итак, Сара, вот ваша диета: одно яблоко, одно вареное яйцо, нежирный творог, зелень\n'
+            '— Ясно, доктор, но это до или после еды?',
+        icon: Icons.favorite,
+        imageUrl: 'https://i.pinimg.com/474x/97/ee/af/97eeaffa3171b0a53bb4161bfc9e3756.jpg',
+      ),
+      CardData(
+        'Анекдот №2',
+        descriptionText: '– Яна Моисеевна, а что вам муженек на день рождения подарил?\n'
+            '– Вон видите феррари за окном стоит?\n'
+            '– Не может быть!\n'
+            '– Вот точно такого же цвета шарфик.\n',
+        icon: Icons.favorite,
+        imageUrl:
+        'https://i.pinimg.com/474x/8c/4f/40/8c4f4093ab3ff9ddb1d8880a94b4d586.jpg',
+      ),
+      CardData(
+        'Анекдот №3',
+        descriptionText: 'Чем дольше звонят в дверь, тем больше Рабиновича нет дома.',
+        icon: Icons.favorite,
+        imageUrl:
+        'https://i.pinimg.com/474x/3a/1f/3c/3a1f3ca4a57ff8a16882093c2f278922.jpg',
+      ),
+    ];
+  }
+}

lib/data/repositories/potter_repository.dart

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+import 'package:dio/dio.dart';
+import 'package:pmd_labs/data/dtos/characters_dto.dart';
+import 'package:pmd_labs/data/mappers/characters_mapper.dart';
+import 'package:pmd_labs/data/repositories/api_interface.dart';
+import 'package:pmd_labs/domain/models/card.dart';
+import 'package:pretty_dio_logger/pretty_dio_logger.dart';
+
+class PotterRepository extends ApiInterface {
+  static final Dio _dio = Dio()
+    ..interceptors.add(PrettyDioLogger(
+      requestHeader: true,
+      requestBody: true,
+    ));
+
+  static const String _baseUrl = 'https://api.potterdb.com';
+
+  @override
+  Future<List<CardData>?> loadData({String? q, OnErrorCallback? onError}) async {
+    try {
+      const String url = '$_baseUrl/v1/characters';
+
+      final Response<dynamic> response = await _dio.get<Map<dynamic, dynamic>>(
+        url,
+        queryParameters: q != null ? {'filter[name_cont]': q} : null,
+      );
+
+      final CharactersDto dto = CharactersDto.fromJson(response.data as Map<String, dynamic>);
+      final List<CardData>? data = dto.data?.map((e) => e.toDomain()).toList();
+      return data;
+    } on DioException catch (e) {
+      onError?.call(e.response?.statusMessage);
+      return null;
+    }
+  }
+}

lib/domain/models/card.dart

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+import 'package:flutter/material.dart';
+
+class CardData {
+  final String text;
+  final String descriptionText;
+  final IconData icon;
+  final String? imageUrl;
+
+  CardData(
+      this.text, {
+        required this.descriptionText,
+        this.icon = Icons.favorite,
+        this.imageUrl,
+      });
+}