From 036fbfa09aa6bbc3211d12194e1e2ca2946cecfd Mon Sep 17 00:00:00 2001
From: "zhang.pengcheng" <zhang.pengcheng@ivis.co.jp>
Date: Thu, 5 Jun 2025 13:43:32 +0900
Subject: [PATCH] =?UTF-8?q?=E5=A4=89=E6=9B=B4=E3=82=92=E5=AE=9F=E8=A3=85?=
 =?UTF-8?q?=E3=81=97=E3=81=BE=E3=81=97=E3=81=9F?=
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---
 .../todoapp/controller/ToBuysController.java  | 10 ++++
 .../todoapp/service/ToBuysService.java        | 48 +++++++++++++++++++
 2 files changed, 58 insertions(+)

diff --git a/backend/src/main/java/com/example/todoapp/controller/ToBuysController.java b/backend/src/main/java/com/example/todoapp/controller/ToBuysController.java
index bce8a33..7b81ea3 100644
--- a/backend/src/main/java/com/example/todoapp/controller/ToBuysController.java
+++ b/backend/src/main/java/com/example/todoapp/controller/ToBuysController.java
@@ -59,6 +59,16 @@ public class ToBuysController {
         return ResponseEntity.ok("Item added to 'To Buys' successfully");
     }
 
+    @PutMapping("/update")
+    public ResponseEntity<String> updateToBuys(
+        @Valid @RequestBody ToBuysDTO dto, 
+        Authentication authentication) {
+        toBuysService.updateToBuys(dto, authentication);
+        return ResponseEntity.ok("Item updated to 'To Buys' successfully");
+    }
+
+
+
     /**
      * 指定されたユーザーIDに基づいてすべての「買うもの」リストを取得する
      *
diff --git a/backend/src/main/java/com/example/todoapp/service/ToBuysService.java b/backend/src/main/java/com/example/todoapp/service/ToBuysService.java
index 8049ee9..68b6da8 100644
--- a/backend/src/main/java/com/example/todoapp/service/ToBuysService.java
+++ b/backend/src/main/java/com/example/todoapp/service/ToBuysService.java
@@ -85,6 +85,54 @@ public class ToBuysService {
 
     }
 
+    /**
+     * 購入リストに新しいアイテムを追加する
+     *
+     * @param toBuyDTO 追加する購入アイテムのデータ（DTO）
+     */
+    public void updateToBuys(ToBuysDTO toBuyDTO, Authentication authentication) {
+
+        // ユーザー情報を取得
+        String username = authentication.getName();
+        User user = userRepository.findByUsername(username)
+                .orElseThrow(() -> new RuntimeException("ユーザーが見つかりません: " + username));
+
+        Stuffs stuffs;
+        if (toBuyDTO.getStuff_id() == null) {
+            // 新しい材料を作成
+            stuffs = new Stuffs();
+            stuffs.setStuff_name(toBuyDTO.getStuff_name());
+            stuffs.setCategory(toBuyDTO.getCategory());
+            stuffs = stuffsRepository.save(stuffs); 
+        } else {
+            // 材料情報を取得
+            Optional<Stuffs> optionalStuffs = stuffsRepository.findById(toBuyDTO.getStuff_id());
+            if (!optionalStuffs.isPresent()) {
+                throw new RuntimeException("材料がありません");
+            }
+            stuffs = optionalStuffs.get();    
+            
+            //update
+            // stuffs.setStuff_name(toBuyDTO.getStuff_name());
+            // stuffs.setCategory(toBuyDTO.getCategory());
+            stuffs = stuffsRepository.save(stuffs);
+        }
+
+
+
+        ToBuys toBuys = new ToBuys();
+        toBuys.setUser_id(user);
+        toBuys.setStuffs(stuffs);
+        toBuys.setAmount(toBuyDTO.getAmount());
+        toBuys.setStore(toBuyDTO.getShop());
+
+        // データベースに保存
+        toBuysRepository.save(toBuys);
+
+    }
+
+
+
     /**
      * 指定されたユーザーIDに基づいてすべての「買うもの」リストを取得する
      *