tmp

lib/main/framework/ui/basic_configuration_tab.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:minecraft_server_installer/main/framework/ui/strings.dart';
 import 'package:minecraft_server_installer/vanila/adapter/presentation/game_version_view_model.dart';
 import 'package:minecraft_server_installer/vanila/framework/ui/game_version_dropdown.dart';
 
@@ -14,6 +15,12 @@ class _BasicConfigurationTabState extends State<BasicConfigurationTab> {
 
   @override
   Widget build(BuildContext context) {
-    return const Column(children: [GameVersionDropdown(onChanged: print)]);
+    return const Column(
+      children: [
+        GameVersionDropdown(onChanged: print),
+        Spacer(),
+        ElevatedButton(onPressed: null, child: Text(Strings.buttonStartToInstall)),
+      ],
+    );
   }
 }

lib/main/framework/ui/strings.dart

@@ -1,3 +1,4 @@
 abstract class Strings {
   static const fieldGameVersion = '遊戲版本';
+  static const buttonStartToInstall = '開始安裝';
 }

lib/vanila/adapter/gateway/game_version_api_service.dart

@@ -1,5 +1,9 @@
+import 'dart:typed_data';
+
 import 'package:minecraft_server_installer/vanila/domain/entity/game_version.dart';
 
 abstract interface class GameVersionApiService {
   Future<List<GameVersion>> fetchGameVersionList();
+
+  Future<Uint8List> fetchServerFile(Uri url);
 }

lib/vanila/adapter/gateway/game_version_repository_impl.dart

@@ -9,4 +9,9 @@ class GameVersionRepositoryImpl implements GameVersionRepository {
 
   @override
   Future<List<GameVersion>> getGameVersionList() => _gameVersionApiService.fetchGameVersionList();
+
+  @override
+  Future<void> downloadServerFile(GameVersion version, String savePath) async {
+    final fileBytes = await _gameVersionApiService.fetchServerFile(version.url);
+  }
 }

lib/vanila/application/repository/game_version_repository.dart

@@ -2,4 +2,6 @@ import 'package:minecraft_server_installer/vanila/domain/entity/game_version.dar
 
 abstract interface class GameVersionRepository {
   Future<List<GameVersion>> getGameVersionList();
+
+  Future<void> downloadServerFile(GameVersion version, String savePath);
 }

lib/vanila/application/use_case/download_server_file_use_case.dart

@@ -0,0 +1,10 @@
+import 'package:minecraft_server_installer/vanila/application/repository/game_version_repository.dart';
+import 'package:minecraft_server_installer/vanila/domain/entity/game_version.dart';
+
+class DownloadServerFileUseCase {
+  final GameVersionRepository _gameVersionRepository;
+
+  DownloadServerFileUseCase(this._gameVersionRepository);
+
+  Future<void> call(GameVersion version, String savePath) => _gameVersionRepository.downloadServerFile(version, savePath);
+}

lib/vanila/framework/api/game_version_api_service_impl.dart

@@ -1,3 +1,5 @@
+import 'dart:typed_data';
+
 import 'package:http/http.dart' as http;
 import 'package:minecraft_server_installer/vanila/adapter/gateway/game_version_api_service.dart';
 import 'package:minecraft_server_installer/vanila/domain/entity/game_version.dart';
@@ -17,4 +19,10 @@ class GameVersionApiServiceImpl implements GameVersionApiService {
 
     return gameVersionList;
   }
+
+  @override
+  Future<Uint8List> fetchServerFile(Uri url) async {
+    final response = await http.get(url);
+    return response.bodyBytes;
+  }
 }