Geminiの分析情報をDBに入れる (#159) (#165)

KOU050223 · web-flow · commit 2d698b7ff175 · 2026-01-28T23:58:04.000+09:00
* feat(camera): Gemini分析結果のDB保存機能を実装

- ScanDataServiceにsaveAnalysisCommentメソッドを追加
- QRスキャン画面で分析後に自動的にFirestoreへ保存
- 既存の分析結果がある場合は初期表示
- 再分析ボタンで最新の分析結果に更新可能
- users/{userId}/meishies/{friendUserId}コレクションに保存

* fix: コードの整形を改善

* fix(camera): PRレビュー指摘事項を修正

- ユーザーIDのログ出力を削除してプライバシーを保護
- 非同期処理後のsetState()にmountedチェックを追加
- saveAnalysisCommentのエラーを分離して分析結果を保護
diff --git a/lib/ui/camera/services/scan_data_service.dart b/lib/ui/camera/services/scan_data_service.dart
@@ -42,7 +42,8 @@ class ScanDataService {
 
   /// 取得したTIDに基づいて、アニメ詳細情報を取得する
   static Future<List<Map<String, dynamic>>> getAnimeDetails(
-      Set<String> tids) async {
+    Set<String> tids,
+  ) async {
     List<Map<String, dynamic>> animeList = [];
     try {
       // "titles" コレクションから全件取得（件数が多い場合は where クエリなどで絞ることを検討）
@@ -103,8 +104,9 @@ class ScanDataService {
 
     // URLフォーマットの場合: https://animeishi-viewer.web.app/user/USER_ID
     if (trimmedValue.startsWith('https://animeishi-viewer.web.app/user/')) {
-      final userId = trimmedValue
-          .substring('https://animeishi-viewer.web.app/user/'.length);
+      final userId = trimmedValue.substring(
+        'https://animeishi-viewer.web.app/user/'.length,
+      );
       return userId.isNotEmpty ? userId : null;
     }
 
@@ -130,7 +132,9 @@ class ScanDataService {
 
   /// analysisCommentを取得
   static Future<String?> getAnalysisComment(
-      String currentUserId, String friendUserId) async {
+    String currentUserId,
+    String friendUserId,
+  ) async {
     try {
       final doc = await _firestore
           .collection('users')
@@ -146,6 +150,29 @@ class ScanDataService {
     }
     return null;
   }
+
+  /// analysisCommentを保存
+  static Future<void> saveAnalysisComment(
+    String currentUserId,
+    String friendUserId,
+    String comment,
+  ) async {
+    try {
+      await _firestore
+          .collection('users')
+          .doc(currentUserId)
+          .collection('meishies')
+          .doc(friendUserId)
+          .set({
+        'analysisComment': comment,
+        'updatedAt': FieldValue.serverTimestamp(),
+      }, SetOptions(merge: true));
+      print('analysisComment保存成功');
+    } catch (e) {
+      print('analysisComment保存エラー: $e');
+      rethrow;
+    }
+  }
 }
 
 /// スキャンデータ取得結果を格納するクラス
diff --git a/lib/ui/camera/view/scandata.dart b/lib/ui/camera/view/scandata.dart
@@ -1,10 +1,10 @@
 import 'package:flutter/material.dart';
 import 'package:mobile_scanner/mobile_scanner.dart';
+import 'package:firebase_auth/firebase_auth.dart';
 import 'package:animeishi/ui/home/view/home_page.dart';
 import 'package:animeishi/ui/camera/services/anime_analysis_service.dart';
 import 'package:animeishi/ui/camera/services/scan_data_service.dart';
 import '../controllers/scan_result_animation_controller.dart';
-import '../services/scan_data_service.dart';
 import '../components/scan_result_widgets.dart';
 import '../components/scan_result_painters.dart';
 
@@ -60,6 +60,23 @@ class _ScanDataWidgetState extends State<ScanDataWidget>
     // データ取得
     try {
       final result = await ScanDataService.fetchUserData(_userId!);
+
+      // 既存の分析結果を取得
+      final currentUserId = FirebaseAuth.instance.currentUser?.uid;
+      if (currentUserId != null && result.success) {
+        final savedComment = await ScanDataService.getAnalysisComment(
+          currentUserId,
+          _userId!,
+        );
+        if (savedComment != null) {
+          if (!mounted) return;
+          setState(() {
+            analysisComment = savedComment;
+          });
+        }
+      }
+
+      if (!mounted) return;
       setState(() {
         _scanResult = result;
         _isLoading = false;
@@ -94,11 +111,28 @@ class _ScanDataWidgetState extends State<ScanDataWidget>
         animeList,
         username: username,
       );
+
+      // 分析結果をFirestoreに保存
+      final currentUserId = FirebaseAuth.instance.currentUser?.uid;
+      if (currentUserId != null) {
+        try {
+          await ScanDataService.saveAnalysisComment(
+            currentUserId,
+            userId,
+            comment,
+          );
+        } catch (e) {
+          debugPrint('analysisComment保存失敗: $e');
+        }
+      }
+
+      if (!mounted) return;
       setState(() {
         analysisComment = comment;
         isAnalyzing = false;
       });
     } catch (e) {
+      if (!mounted) return;
       setState(() {
         analysisComment = 'AI分析に失敗しました: $e';
         isAnalyzing = false;
@@ -166,10 +200,7 @@ class _ScanDataWidgetState extends State<ScanDataWidget>
                       (route) => false,
                     );
                   },
-                  icon: const Icon(
-                    Icons.arrow_back,
-                    color: Color(0xFF667EEA),
-                  ),
+                  icon: const Icon(Icons.arrow_back, color: Color(0xFF667EEA)),
                 ),
               ),
             ),
@@ -225,30 +256,13 @@ class _ScanDataWidgetState extends State<ScanDataWidget>
             ScanResultWidgets.buildAnimeListCard(animeList),
 
             const SizedBox(height: 24),
-            ElevatedButton.icon(
-              icon: const Icon(Icons.insights),
-              label: const Text('AIで視聴傾向を分析'),
-              onPressed: isAnalyzing ? null : () => _runAnalysis(_userId!),
-              style: ElevatedButton.styleFrom(
-                backgroundColor: const Color(0xFF667EEA),
-                foregroundColor: Colors.white,
-                minimumSize: const Size(double.infinity, 48),
-              ),
-            ),
-            const SizedBox(height: 16),
-            if (isAnalyzing)
-              Row(
-                children: [
-                  const CircularProgressIndicator(),
-                  const SizedBox(width: 12),
-                  const Text('分析中...'),
-                ],
-              ),
-            if (analysisComment != null)
+
+            // 分析結果表示（既存の場合）
+            if (analysisComment != null && !isAnalyzing)
               Container(
                 width: double.infinity,
                 padding: const EdgeInsets.all(16),
-                margin: const EdgeInsets.only(top: 8),
+                margin: const EdgeInsets.only(bottom: 16),
                 decoration: BoxDecoration(
                   color: Colors.white,
                   borderRadius: BorderRadius.circular(15),
@@ -282,6 +296,32 @@ class _ScanDataWidgetState extends State<ScanDataWidget>
                   ],
                 ),
               ),
+
+            // 分析ボタン
+            ElevatedButton.icon(
+              icon: const Icon(Icons.insights),
+              label: Text(analysisComment != null ? 'AIで再分析' : 'AIで視聴傾向を分析'),
+              onPressed: isAnalyzing ? null : () => _runAnalysis(_userId!),
+              style: ElevatedButton.styleFrom(
+                backgroundColor: const Color(0xFF667EEA),
+                foregroundColor: Colors.white,
+                minimumSize: const Size(double.infinity, 48),
+              ),
+            ),
+
+            // 分析中表示
+            if (isAnalyzing)
+              const Padding(
+                padding: EdgeInsets.only(top: 16),
+                child: Row(
+                  mainAxisAlignment: MainAxisAlignment.center,
+                  children: [
+                    CircularProgressIndicator(),
+                    SizedBox(width: 12),
+                    Text('分析中...'),
+                  ],
+                ),
+              ),
           ],
         ),
       ),
