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2025-11-19 11:17:33 +09:00
parent 3b053530f5
commit 2008c377f4
17 changed files with 1416 additions and 966 deletions
@@ -0,0 +1,70 @@
+// packages/service_api/lib/services/lobby_helper_service.dart
+import 'dart:developer';
+import 'package:service_api/service_api.dart';
+
+/// [수정됨] 로비 화면의 중복 로직(랭킹, 레벨)을 처리하는 공통 서비스
+class LobbyHelperService {
+  final IdentityService _identityService;
+  final PuzzleService _puzzleService;
+
+  LobbyHelperService({
+    required IdentityService identityService,
+    required PuzzleService puzzleService,
+  })  : _identityService = identityService,
+        _puzzleService = puzzleService;
+
+  /// (가벼움) 현재 게임의 최대 레벨만 로드
+  Future<int> loadMaxLevel(String gameType) async {
+    return await _identityService.getMaxUnlockedLevel(gameType: gameType);
+  }
+
+  /// [🔥 수정됨] (무거움) 랭킹 변동 이력(▲▼)을 반환 (levelIndex 추출기능 주입)
+  Future<Map<int, (int, int)>> loadRankHistory<T extends GameDifficulty>({
+    required String gameType,
+    required String myName,
+    required List<T> allLevels,
+    required int Function(T level) getLevelIndex, // 👈 [수정] levelIndex 추출 함수
+  }) async {
+    try {
+      final Map<int, int> oldRankMap =
+          await _identityService.getLastSavedRankMap(gameType: gameType);
+
+      List<Future<List<GameRankDto>>> rankFutures = [];
+      for (final level in allLevels) {
+        rankFutures.add(_puzzleService.fetchRanks(gameType, level.contextId));
+      }
+
+      final List<List<GameRankDto>> allRankResults =
+          await Future.wait(rankFutures);
+      Map<int, int> newRankMapForStorage = {};
+      Map<int, (int, int)> newRankHistoryForState = {};
+
+      for (int i = 0; i < allLevels.length; i++) {
+        final level = allLevels[i];
+        final currentRanks = allRankResults[i];
+
+        // [🔥 수정] 주입받은 함수로 levelIndex를 안전하게 추출
+        final int levelIndex = getLevelIndex(level);
+
+        final int oldRank = oldRankMap[levelIndex] ?? 0;
+        int currentRank = 0;
+        int myRankIndex =
+            currentRanks.indexWhere((r) => r.playerName == myName);
+        if (myRankIndex != -1) {
+          currentRank = myRankIndex + 1;
+        }
+        newRankMapForStorage[levelIndex] = currentRank;
+        newRankHistoryForState[levelIndex] = (oldRank, currentRank);
+      }
+
+      await _identityService.saveLastRankMap(newRankMapForStorage,
+          gameType: gameType);
+
+      log("$gameType 랭킹 변동 확인 완료. (유저: $myName)");
+      return newRankHistoryForState;
+    } catch (e) {
+      log("LobbyHelperService($gameType): 랭킹 확인 실패: $e");
+      rethrow;
+    }
+  }
+}