[Feat] 켐페인 보낸 제안 조회

src/main/java/com/example/RealMatch/business/application/service/CampaignProposalQueryService.java

@@ -0,0 +1,32 @@
+package com.example.RealMatch.business.application.service;
+
+import java.util.UUID;
+
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import com.example.RealMatch.business.domain.entity.CampaignProposal;
+import com.example.RealMatch.business.domain.repository.CampaignProposalRepository;
+import com.example.RealMatch.business.exception.BusinessErrorCode;
+import com.example.RealMatch.business.presentation.dto.response.CampaignProposalDetailResponse;
+import com.example.RealMatch.global.exception.CustomException;
+
+import lombok.RequiredArgsConstructor;
+
+@Service
+@RequiredArgsConstructor
+@Transactional(readOnly = true)
+public class CampaignProposalQueryService {
+
+    private final CampaignProposalRepository campaignProposalRepository;
+
+    public CampaignProposalDetailResponse getProposalDetail(
+            Long userId,
+            UUID proposalId
+    ) {
+        CampaignProposal proposal = campaignProposalRepository.findByIdWithTags(proposalId)
+                .orElseThrow(() -> new CustomException(BusinessErrorCode.CAMPAIGN_PROPOSAL_NOT_FOUND));
+
+        return CampaignProposalDetailResponse.from(proposal);
+    }
+}

src/main/java/com/example/RealMatch/business/domain/repository/CampaignProposalRepository.java

@@ -1,6 +1,7 @@
 package com.example.RealMatch.business.domain.repository;
 
 import java.util.List;
+import java.util.Optional;
 import java.util.UUID;
 
 import org.springframework.data.jpa.repository.JpaRepository;
@@ -49,4 +50,13 @@ List<UUID> findReceivedProposalIds(
             @Param("status") ProposalStatus status
     );
 
+    @Query("""
+        select distinct cp
+        from CampaignProposal cp
+        left join fetch cp.tags t
+        left join fetch t.tagContent
+        where cp.id = :proposalId
+    """)
+    Optional<CampaignProposal> findByIdWithTags(UUID proposalId);
+
 }

src/main/java/com/example/RealMatch/business/exception/BusinessErrorCode.java

@@ -13,7 +13,9 @@
 public enum BusinessErrorCode implements BaseErrorCode {
 
     // ===== 조회 =====
-    CAMPAIGN_APPLY_ALREADY_APPLIED(HttpStatus.BAD_REQUEST, "CAMPAIGN_400_1", "이미 지원한 캠페인입니다.");
+    CAMPAIGN_APPLY_ALREADY_APPLIED(HttpStatus.BAD_REQUEST, "CAMPAIGN_400_1", "이미 지원한 캠페인입니다."),
+
+    CAMPAIGN_PROPOSAL_NOT_FOUND(HttpStatus.NOT_FOUND, "CAMPAIGN_404_1", "캠페인 지원 내역이 없습니다.");
 
     private final HttpStatus status;
     private final String code;

src/main/java/com/example/RealMatch/business/presentation/controller/CampaignProposalController.java

@@ -1,14 +1,20 @@
 package com.example.RealMatch.business.presentation.controller;
 
+import java.util.UUID;
+
 import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
+import com.example.RealMatch.business.application.service.CampaignProposalQueryService;
 import com.example.RealMatch.business.application.service.CampaignProposalService;
 import com.example.RealMatch.business.presentation.docs.CampaignProposalSwagger;
 import com.example.RealMatch.business.presentation.dto.request.CampaignProposalRequestDto;
+import com.example.RealMatch.business.presentation.dto.response.CampaignProposalDetailResponse;
 import com.example.RealMatch.global.config.jwt.CustomUserDetails;
 import com.example.RealMatch.global.presentation.CustomResponse;
 import com.example.RealMatch.user.domain.entity.enums.Role;
@@ -20,10 +26,11 @@
 
 @Tag(name = "Business", description = "비즈니스 API")
 @RestController
-@RequestMapping("/api/v1/campaigns")
+@RequestMapping("/api/v1/campaigns/proposal")
 @RequiredArgsConstructor
 public class CampaignProposalController implements CampaignProposalSwagger {
     private final CampaignProposalService campaignProposalService;
+    private final CampaignProposalQueryService campaignProposalQueryService;
 
     @Override
     @PostMapping("/request")
@@ -49,5 +56,30 @@ public CustomResponse<String> requestCampaignProposal(
         campaignProposalService.requestCampaign(1L, Role.from(userDetails.getRole()), request);
         return CustomResponse.ok("캠페인 제안에 성공했습니다.");
     }
+
+    @GetMapping("/{campaignProposalId}")
+    @Operation(
+            summary = "캠페인 제안 상세 조회 API",
+            description = """
+            캠페인 제안 단건의 상세 정보를 조회합니다.
+
+            제안에 포함된 콘텐츠 태그 정보와
+            제안 상태(REVIEWING / MATCHED / REJECTED)를 함께 반환합니다.
+            """
+    )
+    public CustomResponse<CampaignProposalDetailResponse> getProposalDetail(
+            @AuthenticationPrincipal CustomUserDetails principal,
+            @PathVariable UUID campaignProposalId
+    ) {
+        CampaignProposalDetailResponse response =
+                campaignProposalQueryService.getProposalDetail(
+                        principal.getUserId(),
+                        campaignProposalId
+                );
+
+        return CustomResponse.ok(response);
+    }
+
+
 }
 

src/main/java/com/example/RealMatch/business/presentation/dto/response/CampaignProposalDetailResponse.java

@@ -9,7 +9,7 @@
 import java.util.UUID;
 
 import com.example.RealMatch.business.domain.entity.CampaignProposal;
-import com.example.RealMatch.campaign.domain.entity.CampaignContentTag;
+import com.example.RealMatch.business.domain.entity.CampaignProposalContentTag;
 import com.example.RealMatch.tag.domain.enums.ContentTagType;
 import com.example.RealMatch.tag.presentation.dto.response.ContentTagResponse;
 
@@ -41,10 +41,7 @@ public class CampaignProposalDetailResponse {
 
     private ContentTagResponse contentTags;
 
-    public static CampaignProposalDetailResponse from(
-            CampaignProposal proposal,
-            List<CampaignContentTag> tags
-    ) {
+    public static CampaignProposalDetailResponse from(CampaignProposal proposal) {
         return CampaignProposalDetailResponse.builder()
                 .proposalId(proposal.getId())
                 .brandId(proposal.getBrand().getId())
@@ -58,17 +55,17 @@ public static CampaignProposalDetailResponse from(
                 .status(proposal.getStatus().name())
                 .refusalReason(proposal.getRefusalReason())
                 .createdAt(proposal.getCreatedAt())
-                .contentTags(toContentTagResponse(tags))
+                .contentTags(toContentTagResponse(proposal.getTags()))
                 .build();
     }
 
     private static ContentTagResponse toContentTagResponse(
-            List<CampaignContentTag> tags
+            List<CampaignProposalContentTag> tags
     ) {
         Map<ContentTagType, List<ContentTagResponse.TagItemResponse>> map =
                 new EnumMap<>(ContentTagType.class);
 
-        for (CampaignContentTag tag : tags) {
+        for (CampaignProposalContentTag tag : tags) {
             ContentTagType type = tag.getTagContent().getTagType();
 
             map.computeIfAbsent(type, k -> new ArrayList<>())
@@ -85,19 +82,16 @@ private static ContentTagResponse toContentTagResponse(
     }
 
     private static ContentTagResponse.TagItemResponse toTagItem(
-            CampaignContentTag tag
+            CampaignProposalContentTag tag
     ) {
+        String baseName = tag.getTagContent().getKorName();
+        String name = tag.getCustomTagValue() != null && !tag.getCustomTagValue().isBlank()
+                ? baseName + " (" + tag.getCustomTagValue() + ")"
+                : baseName;
+
         return new ContentTagResponse.TagItemResponse(
                 tag.getTagContent().getId(),
-                resolveTagName(tag)
+                name
         );
     }
-
-    private static String resolveTagName(CampaignContentTag tag) {
-        String baseName = tag.getTagContent().getKorName();
-        if (tag.getCustomTagValue() != null && !tag.getCustomTagValue().isBlank()) {
-            return baseName + " (" + tag.getCustomTagValue() + ")";
-        }
-        return baseName;
-    }
 }