feat: 파트너가 발급한 쿠폰 전체 조회기능 추가

Author: Junyeong-An

src/main/java/com/trashheroesbe/feature/coupon/api/CouponPartnerController.java

@@ -6,6 +6,7 @@
 import com.trashheroesbe.feature.coupon.dto.request.CouponCreateRequest;
 import com.trashheroesbe.feature.coupon.dto.request.CouponUpdateRequest;
 import com.trashheroesbe.feature.coupon.dto.response.CouponCreateResponse;
+import com.trashheroesbe.feature.coupon.dto.response.PartnerCouponResponse;
 import com.trashheroesbe.global.response.ApiResponse;
 import com.trashheroesbe.global.auth.security.CustomerDetails;
 import jakarta.validation.Valid;
@@ -14,10 +15,12 @@
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.PatchMapping;
+import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import java.util.List;
 
 @RestController
 @RequiredArgsConstructor
@@ -26,6 +29,14 @@ public class CouponPartnerController implements CouponPartnerControllerApi {
 
     private final CouponService couponService;
 
+    @Override
+    @GetMapping("/coupons")
+    public ApiResponse<List<PartnerCouponResponse>> getPartnerCoupons(
+        @AuthenticationPrincipal CustomerDetails customerDetails
+    ) {
+        return ApiResponse.success(OK, couponService.getPartnerCoupons(customerDetails));
+    }
+
     @Override
     @PostMapping("/coupons")
     public ApiResponse<CouponCreateResponse> createCoupon(

src/main/java/com/trashheroesbe/feature/coupon/api/CouponPartnerControllerApi.java

@@ -3,6 +3,7 @@
 import com.trashheroesbe.feature.coupon.dto.request.CouponCreateRequest;
 import com.trashheroesbe.feature.coupon.dto.request.CouponUpdateRequest;
 import com.trashheroesbe.feature.coupon.dto.response.CouponCreateResponse;
+import com.trashheroesbe.feature.coupon.dto.response.PartnerCouponResponse;
 import com.trashheroesbe.global.response.ApiResponse;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
@@ -11,11 +12,17 @@
 import jakarta.validation.Valid;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestBody;
+import java.util.List;
 import com.trashheroesbe.global.auth.security.CustomerDetails;
 
 @Tag(name = "Coupon", description = "쿠폰 생성/조회 API")
 public interface CouponPartnerControllerApi {
 
+    @Operation(summary = "파트너 쿠폰 전체 조회", description = "파트너가 발급한 쿠폰 목록을 조회합니다.")
+    ApiResponse<List<PartnerCouponResponse>> getPartnerCoupons(
+        @AuthenticationPrincipal CustomerDetails customerDetails
+    );
+
     @Operation(summary = "쿠폰 생성", description = "파트너가 쿠폰을 생성합니다.")
     ApiResponse<CouponCreateResponse> createCoupon(
         @AuthenticationPrincipal CustomerDetails customerDetails,

src/main/java/com/trashheroesbe/feature/coupon/application/CouponService.java

@@ -4,11 +4,13 @@
 import com.trashheroesbe.feature.coupon.dto.request.CouponCreateRequest;
 import com.trashheroesbe.feature.coupon.dto.request.CouponUpdateRequest;
 import com.trashheroesbe.feature.coupon.dto.response.CouponCreateResponse;
+import com.trashheroesbe.feature.coupon.dto.response.PartnerCouponResponse;
 import com.trashheroesbe.feature.coupon.infrastructure.CouponRepository;
 import com.trashheroesbe.feature.partner.domain.entity.Partner;
 import com.trashheroesbe.global.exception.BusinessException;
 import com.trashheroesbe.global.response.type.ErrorCode;
 import com.trashheroesbe.global.auth.security.CustomerDetails;
+import java.util.List;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
@@ -20,6 +22,14 @@ public class CouponService {
 
     private final CouponRepository couponRepository;
 
+    @Transactional(readOnly = true)
+    public List<PartnerCouponResponse> getPartnerCoupons(CustomerDetails customerDetails) {
+        Partner partner = extractPartner(customerDetails);
+        return couponRepository.findAllByPartnerIdFetch(partner.getId()).stream()
+            .map(PartnerCouponResponse::from)
+            .toList();
+    }
+
     public CouponCreateResponse createCoupon(
         CustomerDetails customerDetails,
         CouponCreateRequest request

src/main/java/com/trashheroesbe/feature/coupon/infrastructure/CouponRepository.java

@@ -2,6 +2,7 @@
 
 import com.trashheroesbe.feature.coupon.domain.entity.Coupon;
 import java.util.Optional;
+import java.util.List;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.query.Param;
@@ -12,4 +13,7 @@ public interface CouponRepository extends JpaRepository<Coupon, Long> {
 
     @Query("select c from Coupon c join fetch c.partner where c.id = :id")
     Optional<Coupon> findByIdFetchPartner(@Param("id") Long id);
+
+    @Query("select c from Coupon c join fetch c.partner p where p.id = :partnerId")
+    List<Coupon> findAllByPartnerIdFetch(@Param("partnerId") Long partnerId);
 }