#17 유통기한 알림

refrigerator/src/main/java/moja/refrigerator/controller/ingredient/IngredientController.java

@@ -88,4 +88,14 @@ public ResponseEntity<ResponseDeleteIngredientBookmark> deleteIngredientBookmark
         return ResponseEntity.status(HttpStatus.OK).body(responseDeleteIngredientBookmark);
     }
 
+    @GetMapping("/alert")
+    public ResponseEntity<List<ResponseAlertExpirationDate>> alertExpirationDate(
+            @RequestBody RequestAlertExpirationDate requestAlertExpirationDate
+    ) {
+        List<ResponseAlertExpirationDate> responseAlertExpirationDate =
+                ingredientService.alertExpirationDate(requestAlertExpirationDate);
+
+        return ResponseEntity.status(HttpStatus.OK).body(responseAlertExpirationDate);
+    }
+
 }

refrigerator/src/main/java/moja/refrigerator/dto/ingredient/request/RequestAlertExpirationDate.java

@@ -0,0 +1,8 @@
+package moja.refrigerator.dto.ingredient.request;
+
+import lombok.Data;
+
+@Data
+public class RequestAlertExpirationDate {
+    private long userPk;
+}

refrigerator/src/main/java/moja/refrigerator/dto/ingredient/response/ResponseAlertExpirationDate.java

@@ -0,0 +1,21 @@
+package moja.refrigerator.dto.ingredient.response;
+
+import lombok.Data;
+import moja.refrigerator.aggregate.ingredient.IngredientManagement;
+
+@Data
+public class ResponseAlertExpirationDate {
+    private long ingredientMyRefrigeratorPk;
+    private IngredientManagement ingredientManagement;
+    private float ingredientAmount;
+    private String expirationDate;
+    private int remainDate;
+
+    public ResponseAlertExpirationDate(long ingredientMyRefrigeratorPk, IngredientManagement ingredientManagement, float ingredientAmount, String expirationDate, int remainDate) {
+        this.ingredientMyRefrigeratorPk = ingredientMyRefrigeratorPk;
+        this.ingredientManagement = ingredientManagement;
+        this.ingredientAmount = ingredientAmount;
+        this.expirationDate = expirationDate;
+        this.remainDate = remainDate;
+    }
+}

refrigerator/src/main/java/moja/refrigerator/service/ingredient/IngredientService.java

@@ -20,4 +20,6 @@ List<ResponseUsersIngredientBookmarkLists> getUsersIngredientBookmarkLists(
             RequestIngredientBookmarkLists requestBookmarkLists);
 
     ResponseDeleteIngredientBookmark deleteIngredientBookmark(RequestDeleteIngredientBookmark requestDeleteBookmark);
+
+    List<ResponseAlertExpirationDate> alertExpirationDate(RequestAlertExpirationDate requestAlertExpirationDate);
 }

refrigerator/src/main/java/moja/refrigerator/service/ingredient/IngredientServiceImpl.java

@@ -16,11 +16,10 @@
 import org.springframework.transaction.annotation.Transactional;
 
 import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
 import java.time.temporal.ChronoUnit;
-import java.util.Comparator;
-import java.util.List;
+import java.util.*;
 import java.util.concurrent.atomic.AtomicInteger;
-import java.util.Optional;
 import java.util.stream.Collectors;
 
 @Service
@@ -180,4 +179,42 @@ public ResponseDeleteIngredientBookmark deleteIngredientBookmark(
             return response;
         }
     }
+
+    @Override
+    public List<ResponseAlertExpirationDate> alertExpirationDate(
+            RequestAlertExpirationDate requestAlertExpirationDate) {
+        // 1. 현재일 찾기
+        LocalDate currentDate = LocalDate.now();
+        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd"); // 원하는 포맷 지정
+        String dateString = currentDate.format(formatter);
+
+        // 2. 내 냉장고 전채 조회
+        List<IngredientMyRefrigerator> refrigeratorList = ingredientMyRefrigeratorRepository
+                .findByUserUserPk(requestAlertExpirationDate.getUserPk());
+
+        List<ResponseAlertExpirationDate> responseAlertExpirationDates = new ArrayList<>();
+        // 3. 남은 유통기한 계산
+        for (IngredientMyRefrigerator ingredientMyRefrigerator : refrigeratorList) {
+            LocalDate expirationDate = LocalDate.parse(ingredientMyRefrigerator.getExpirationDate(), formatter);
+
+            long daysUntilExpiration = ChronoUnit.DAYS.between(currentDate, expirationDate);
+
+            if (daysUntilExpiration == 7 || daysUntilExpiration == 3) {
+                // ResponseAlertExpirationDate 객체 생성
+                ResponseAlertExpirationDate response = new ResponseAlertExpirationDate(
+                        ingredientMyRefrigerator.getIngredientMyRefrigeratorPk(),
+                        ingredientMyRefrigerator.getIngredientManagement(),
+                        ingredientMyRefrigerator.getIngredientAmount(),
+                        ingredientMyRefrigerator.getExpirationDate(),
+                        (int) daysUntilExpiration // daysUntilExpiration을 int로 변환
+                );
+
+                // 리스트에 추가
+                responseAlertExpirationDates.add(response);
+            }
+
+        }
+        // 4. 리턴
+        return responseAlertExpirationDates;
+    }
 }