refactor(diec_repository): ♻️ extract repository

lib/main.dart

@@ -9,7 +9,7 @@ import 'src/settings/settings_service.dart';
 void main() async {
   // Set up the SettingsController, which will glue user settings to multiple
   // Flutter Widgets.
-  final settingsController = SettingsController(SettingsService());
+  final settingsController = SettingsController(const SettingsService());
 
   // Load the user's preferred theme while the splash screen is displayed.
   // This prevents a sudden theme change when the app is first displayed.

lib/src/model/autocomplete_entries.dart

@@ -1,8 +1,4 @@
-import 'dart:convert';
-
-import 'package:flutter/foundation.dart';
-import 'package:http/http.dart' as http;
-
+import '../repositories/diec_repository.dart';
 import 'autocomplete_entry.dart';
 import 'search_condition.dart';
 
@@ -16,24 +12,8 @@ extension AutocompleteEntries on List<AutocompleteEntry> {
     String query, {
     SearchCondition searchCondition = SearchCondition.defaultCondition,
   }) async {
-    final response = await http.post(
-      Uri.https(
-        'dlc.iec.cat',
-        '/Results/CompleteEntradaText',
-        {
-          'EntradaText': query,
-          'OperEntrada': '${searchCondition.index}',
-        },
-      ),
-      headers: const {'Content-Type': 'application/json'},
-    );
-
-    if (response.statusCode != 200) {
-      debugPrint("Can't find definition");
-      return null;
-    }
-
-    final responseBody = json.decode(response.body) as Map<String, dynamic>;
+    final responseBody = await const DIECRepository()
+        .autocompleteEntries(query, searchCondition: searchCondition);
 
     return fromJson(responseBody['entrades'] as List<dynamic>);
   }

lib/src/model/autocomplete_entry.dart

@@ -4,7 +4,7 @@ import 'definition_entry_sense.dart';
 import 'word.dart';
 
 @immutable
-class AutocompleteEntry {
+final class AutocompleteEntry {
   final String id;
   final String word;
 

lib/src/model/bookmark_collection.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
 
 /// A collection of bookmarks.
-class BookmarkCollection with ChangeNotifier {
+final class BookmarkCollection with ChangeNotifier {
   final Map<String, bool> _bookmarks;
 
   /// Creates a new [BookmarkCollection] from [_bookmarks].

lib/src/model/definition_entry_sense.dart

@@ -5,7 +5,7 @@ import 'gender.dart';
 import 'scope.dart';
 
 @immutable
-class DefinitionEntrySense {
+final class DefinitionEntrySense {
   final int? number;
   final int? subNumber;
   final Gender? gender;

lib/src/model/definition_entry_senses.dart

@@ -1,12 +1,9 @@
 // ignore_for_file: lines_longer_than_80_chars
 
-import 'dart:convert';
-
-import 'package:flutter/foundation.dart';
 import 'package:html/dom.dart';
 import 'package:html/parser.dart' as html show parse;
-import 'package:http/http.dart' as http;
 
+import '../repositories/diec_repository.dart';
 import 'definition_entry_sense.dart';
 
 extension DefinitionEntrySenses on List<DefinitionEntrySense> {
@@ -19,22 +16,8 @@ extension DefinitionEntrySenses on List<DefinitionEntrySense> {
       ];
 
   static Future<List<DefinitionEntrySense>?> fetch(String id) async {
-    final response = await http.post(
-      Uri.https('dlc.iec.cat', '/Results/Accepcio', {'id': id}),
-      headers: const {'Content-Type': 'application/json'},
-    );
-
-    if (response.statusCode != 200) {
-      debugPrint("Can't find definition");
-      return null;
-    }
-
-    final responseBody = json.decode(response.body) as Map<String, dynamic>;
-    return _parseHtml(responseBody['content'] as String);
-  }
-
-  static List<DefinitionEntrySense> _parseHtml(String content) {
-    final document = html.parse(content);
+    final responseBody = await const DIECRepository().definitionEntries(id);
+    final document = html.parse(responseBody['content']);
     final body = document.getElementsByTagName('body').first;
 
     final definitions = <List<Element>>[];

lib/src/model/word_cache.dart

@@ -3,7 +3,7 @@ import 'package:flutter/material.dart';
 import 'word.dart';
 
 /// The word cache.
-class WordCache with ChangeNotifier {
+final class WordCache with ChangeNotifier {
   final Map<String, Word> _words;
 
   /// Creates a new [WordCache] from [_words].

lib/src/repositories/diec_repository.dart

@@ -0,0 +1,49 @@
+import 'dart:convert' show json;
+
+import 'package:flutter/foundation.dart' show debugPrint, immutable;
+import 'package:http/http.dart' as http;
+
+import '../model/search_condition.dart';
+
+@immutable
+final class DIECRepository {
+  final String authority;
+
+  const DIECRepository({this.authority = 'dlc.iec.cat'});
+
+  Future<Map<String, dynamic>> autocompleteEntries(
+    String query, {
+    required SearchCondition searchCondition,
+  }) async {
+    final response = await http.post(
+      Uri.https(
+        authority,
+        '/Results/CompleteEntradaText',
+        {
+          'EntradaText': query,
+          'OperEntrada': '${searchCondition.index}',
+        },
+      ),
+      headers: const {'Content-Type': 'application/json'},
+    );
+
+    return _parseResponse(response);
+  }
+
+  Future<Map<String, dynamic>> definitionEntries(String id) async {
+    final response = await http.post(
+      Uri.https(authority, '/Results/Accepcio', {'id': id}),
+      headers: const {'Content-Type': 'application/json'},
+    );
+
+    return _parseResponse(response);
+  }
+
+  Map<String, dynamic> _parseResponse(http.Response response) {
+    if (response.statusCode != 200) {
+      debugPrint("Can't find definition");
+    }
+
+    return json.decode(response.body) as Map<String, dynamic>;
+  }
+}

lib/src/settings/settings_controller.dart

@@ -7,7 +7,7 @@ import 'settings_service.dart';
 ///
 /// Controllers glue Data Services to Flutter Widgets. The SettingsController
 /// uses the SettingsService to store and retrieve user settings.
-class SettingsController with ChangeNotifier {
+final class SettingsController with ChangeNotifier {
   SettingsController(this._settingsService);
 
   // Make SettingsService a private variable so it is not used directly.

lib/src/settings/settings_service.dart

@@ -5,7 +5,10 @@ import 'package:flutter/material.dart';
 /// By default, this class does not persist user settings. If you'd like to
 /// persist the user settings locally, use the shared_preferences package. If
 /// you'd like to store settings on a web server, use the http package.
-class SettingsService {
+@immutable
+final class SettingsService {
+  const SettingsService();
+
   /// Loads the User's preferred ThemeMode from local or remote storage.
   Future<ThemeMode> themeMode() async => ThemeMode.system;