#31 loan: approve judgement

loan/src/main/java/com/example/loan/controller/JudgementController.java

@@ -1,5 +1,6 @@
 package com.example.loan.controller;
 
+import com.example.loan.dto.ApplicationDto;
 import com.example.loan.dto.JudgementDto;
 import com.example.loan.dto.ResponseDto;
 import com.example.loan.service.JudgementService;
@@ -47,4 +48,11 @@ public class JudgementController extends AbstractController {
         judgementService.delete(judgementId);
         return ok();
     }
+
+    @PatchMapping("/{judgementId}/grants")
+    public ResponseDto<ApplicationDto.GrantAmount> grant(
+            @PathVariable Long judgementId
+    ) {
+        return ok(judgementService.grant(judgementId));
+    }
 }

loan/src/main/java/com/example/loan/domain/Application.java

@@ -47,4 +47,7 @@ public class Application extends BaseEntity {
 
     @Column(columnDefinition = "datetime DEFAULT NULL COMMENT '신청일자'")
     private LocalDateTime appliedAt;
+
+    @Column(columnDefinition = "decimal(15,2) DEFAULT NULL COMMENT '승인 금액'")
+    private BigDecimal approvalAmount;
 }

loan/src/main/java/com/example/loan/dto/ApplicationDto.java

@@ -48,4 +48,16 @@ public class ApplicationDto implements Serializable {
         List<Long> acceptTermsIds;
     }
 
+    @NoArgsConstructor
+    @AllArgsConstructor
+    @Getter
+    @Setter
+    @Builder
+    public static class GrantAmount {
+
+        private Long applicationId;
+        private BigDecimal approvalAmount;
+        private LocalDateTime createdAt;
+        private LocalDateTime updatedAt;
+    }
 }

loan/src/main/java/com/example/loan/service/JudgementService.java

@@ -1,5 +1,6 @@
 package com.example.loan.service;
 
+import com.example.loan.dto.ApplicationDto;
 import com.example.loan.dto.JudgementDto;
 
 public interface JudgementService {
@@ -13,4 +14,6 @@ public interface JudgementService {
     JudgementDto.Response update(Long judgementId, JudgementDto.Request request);
 
     void delete(Long judgementId);
+
+    ApplicationDto.GrantAmount grant(Long judgementId);
 }

loan/src/main/java/com/example/loan/service/JudgementServiceImpl.java

@@ -1,6 +1,8 @@
 package com.example.loan.service;
 
+import com.example.loan.domain.Application;
 import com.example.loan.domain.Judgement;
+import com.example.loan.dto.ApplicationDto;
 import com.example.loan.dto.JudgementDto;
 import com.example.loan.exception.BaseException;
 import com.example.loan.exception.ResultType;
@@ -10,6 +12,8 @@ import lombok.RequiredArgsConstructor;
 import org.modelmapper.ModelMapper;
 import org.springframework.stereotype.Service;
 
+import java.math.BigDecimal;
+
 @Service
 @RequiredArgsConstructor
 public class JudgementServiceImpl implements JudgementService {
@@ -78,6 +82,22 @@ public class JudgementServiceImpl implements JudgementService {
         judgementRepository.save(judgement);
     }
 
+    @Override
+    public ApplicationDto.GrantAmount grant(Long judgementId) {
+        Judgement judgement = judgementRepository.findById(judgementId)
+                .orElseThrow(() -> new BaseException(ResultType.SYSTEM_ERROR));
+
+        Long applicationId = judgement.getApplicationId();
+        Application application = applicationRepository.findById(applicationId)
+                .orElseThrow(() -> new BaseException(ResultType.SYSTEM_ERROR));
+
+        BigDecimal approvalAmount = judgement.getApprovalAmount();
+        application.setApprovalAmount(approvalAmount);
+
+        applicationRepository.save(application);
+        return modelMapper.map(application, ApplicationDto.GrantAmount.class);
+    }
+
     private boolean isPresentApplication(Long applicationId) {
         return applicationRepository.findById(applicationId).isPresent();
     }

loan/src/test/java/com/example/loan/service/JudgementServiceImplTest.java

@@ -2,6 +2,7 @@ package com.example.loan.service;
 
 import com.example.loan.domain.Application;
 import com.example.loan.domain.Judgement;
+import com.example.loan.dto.ApplicationDto;
 import com.example.loan.dto.JudgementDto;
 import com.example.loan.repository.ApplicationRepository;
 import com.example.loan.repository.JudgementRepository;
@@ -130,4 +131,29 @@ class JudgementServiceImplTest {
 
         assertThat(entity.getIsDeleted()).isTrue();
     }
+
+    @Test
+    void Should_ReturnUpdateResponseOfExistApplicationEntity_When_RequestGrantApprovalAmountOfJudgementInfo() {
+
+        Judgement judgementEntity = Judgement.builder()
+                .name("kim")
+                .applicationId(1L)
+                .approvalAmount(BigDecimal.valueOf(5000000))
+                .build();
+
+        Application applicationEntity = Application.builder()
+                .applicationId(1L)
+                .approvalAmount(BigDecimal.valueOf(5000000))
+                .build();
+
+        when(judgementRepository.findById(1L)).thenReturn(Optional.ofNullable(judgementEntity));
+        when(applicationRepository.findById(1L)).thenReturn(Optional.ofNullable(applicationEntity));
+        when(applicationRepository.save(ArgumentMatchers.any(Application.class))).thenReturn(applicationEntity);
+
+
+        ApplicationDto.GrantAmount actual = judgementService.grant(1L);
+
+        assertThat(actual.getApplicationId()).isSameAs(1L);
+        assertThat(actual.getApprovalAmount()).isSameAs(judgementEntity.getApprovalAmount());
+    }
 }