공유된 스페이스의 카드 목록 조회, 그래프 조회 기능 구현

src/main/java/com/example/gp_backend_data/card/controller/ShareCardController.java

@@ -0,0 +1,35 @@
+package com.example.gp_backend_data.card.controller;
+
+import com.example.gp_backend_data.card.domain.dto.response.CardCreateResponse;
+import com.example.gp_backend_data.card.domain.dto.response.CardshareResponse;
+import com.example.gp_backend_data.card.service.CardService;
+import jakarta.persistence.EntityNotFoundException;
+import lombok.RequiredArgsConstructor;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+import java.util.UUID;
+
+@RestController
+@RequestMapping("/share")
+@RequiredArgsConstructor
+public class ShareCardController {
+
+    private final CardService cardService;
+
+    @GetMapping("/{sharingId}/cards")
+    public List<CardshareResponse> getSharedCards(
+            @PathVariable UUID sharingId,
+            @RequestParam(defaultValue = "10") int count,
+            @RequestParam(defaultValue = "1") int page,
+            @RequestParam(defaultValue = "createdAt") String sortBy) {
+
+        try {
+            return cardService.getSharedCards(sharingId, count, page, sortBy);
+        } catch (IllegalArgumentException e) {
+            throw new IllegalArgumentException("400 Bad Request: " + e.getMessage());
+        } catch (EntityNotFoundException e) {
+            throw new EntityNotFoundException("404 Not Found: " + e.getMessage());
+        }
+    }
+}

src/main/java/com/example/gp_backend_data/card/domain/dto/response/CardlinkResponse.java

@@ -1,5 +1,6 @@
 package com.example.gp_backend_data.card.domain.dto.response;
 
+import com.example.gp_backend_data.card.domain.entity.Cardlink;
 import lombok.Builder;
 import lombok.Getter;
 
@@ -13,4 +14,5 @@ public class CardlinkResponse {
     private String content;
 //    private int positionStart;
 //    private String contentLength;
+
 }

src/main/java/com/example/gp_backend_data/card/domain/dto/response/CardshareResponse.java

@@ -0,0 +1,25 @@
+package com.example.gp_backend_data.card.domain.dto.response;
+
+import com.example.gp_backend_data.card.domain.entity.Card;
+import lombok.*;
+
+import java.time.LocalDateTime;
+import java.util.List;
+import java.util.UUID;
+
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
+@Builder
+public class CardshareResponse {
+    private UUID cardId;
+    private UUID sharingId;
+    private String title;
+    //private String color;
+    private List<CardlinkResponse> cardlinks;
+    private String aiSummary;
+    //private String userSummary;
+    private LocalDateTime createdAt;
+
+}

src/main/java/com/example/gp_backend_data/card/repository/CardRepository.java

@@ -24,4 +24,6 @@ public interface CardRepository extends JpaRepository<Card, byte[]> {
 //    List<Card> findTodayCreatedCards();
     @Query("SELECT c FROM Card c WHERE c.createdAt >= :start AND c.createdAt < :end")
     List<Card> findCardsCreatedBetween(@Param("start") LocalDateTime start, @Param("end") LocalDateTime end);
+    @Query("SELECT c FROM Card c WHERE c.spaceId = :spaceId ORDER BY c.createdAt DESC")
+    Page<Card> findBySpaceIdOrderByCreatedAtDesc(@Param("spaceId") byte[] spaceId, Pageable pageable);
 }

src/main/java/com/example/gp_backend_data/card/service/CardService.java

@@ -2,10 +2,7 @@
 
 import com.example.gp_backend_data.card.domain.dto.request.CardCreateRequest;
 import com.example.gp_backend_data.card.domain.dto.request.CardUpdateRequest;
-import com.example.gp_backend_data.card.domain.dto.response.CardlinkResponse;
-import com.example.gp_backend_data.card.domain.dto.response.CardCreateResponse;
-import com.example.gp_backend_data.card.domain.dto.response.CardListResponse;
-import com.example.gp_backend_data.card.domain.dto.response.CardResponse;
+import com.example.gp_backend_data.card.domain.dto.response.*;
 import com.example.gp_backend_data.card.domain.entity.Card;
 import com.example.gp_backend_data.card.repository.CardlinkRepository;
 import com.example.gp_backend_data.card.repository.CardRepository;
@@ -144,6 +141,53 @@ public List<CardCreateResponse> getCardsBySpace(UUID spaceId, int count, int pag
                 .collect(Collectors.toList());
     }
 
+    //공유된 스페이스의 지식카드 목록 조회
+    @Transactional(readOnly = true)
+    public List<CardshareResponse> getSharedCards(UUID sharingId, int count, int page, String sortBy) {
+        if (!"createdAt".equals(sortBy)) {
+            throw new IllegalArgumentException("400 Bad Request: Invalid sortBy value");
+        }
+
+        Space space = spaceRepository.findBySharingIdAndIsShared(uuidHelper.convertUUIDToByteArray(sharingId), true)
+                .orElseThrow(() -> new EntityNotFoundException("Shared space not found."));
+
+        Pageable pageable = PageRequest.of(page - 1, count);
+        Page<Card> cards = cardRepository.findBySpaceIdOrderByCreatedAtDesc(space.getSpaceId(), pageable);
+
+
+        if (page == 1 && cards.isEmpty()) {
+            throw new EntityNotFoundException("404 Not Found: No cards available for this spaceId");
+        }
+
+        if (cards.isEmpty()) {
+            throw new ResponseStatusException(NO_CONTENT, "No more items available");
+        }
+
+        return cards.getContent().stream()
+                .map(card -> {
+                    List<CardlinkResponse> cardlinks = cardlinkRepository.findByCard_CardId(card.getCardId()).stream()
+                            .map(cardlink -> CardlinkResponse.builder()
+                                    .cardlinkId(uuidHelper.convertByteArrayToUUID(cardlink.getCardlinkId()))
+                                    .chatId(uuidHelper.convertByteArrayToUUID(cardlink.getChatId()))
+                                    .content(cardlink.getContent())
+                                    //.positionStart(cardlink.getPositionStart())
+                                    //.contentLength(cardlink.getContentLength())
+                                    .build())
+                            .toList();
+                    return CardshareResponse.builder()
+                            .cardId(uuidHelper.convertByteArrayToUUID(card.getCardId()))
+                            .sharingId(sharingId)
+                            .title(card.getTitle())
+                            //.color(uuidHelper.convertBytesToHex(card.getColor()))
+                            .cardlinks(cardlinks)
+                            .aiSummary(card.getAiSummary())
+                            .createdAt(card.getCreatedAt())
+                            .build();
+                })
+                .collect(Collectors.toList());
+
+    }
+
     //지식카드 정보 수정
     @Transactional
     public CardResponse updateCard(UUID cardId, CardUpdateRequest request) {

src/main/java/com/example/gp_backend_data/graph/controller/ShareGraphController.java

@@ -0,0 +1,24 @@
+package com.example.gp_backend_data.graph.controller;
+
+import com.example.gp_backend_data.graph.domain.dto.response.GraphResponse;
+import com.example.gp_backend_data.graph.domain.dto.response.GraphShareResponse;
+import com.example.gp_backend_data.graph.service.GraphService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.UUID;
+
+@RestController
+@RequestMapping("/share")
+@RequiredArgsConstructor
+public class ShareGraphController {
+
+    private final GraphService graphService;
+
+    @GetMapping("/{sharingId}/graphs")
+    public ResponseEntity<GraphShareResponse> getShareGraph(@PathVariable UUID sharingId) {
+        GraphShareResponse response = graphService.getSharedGraph(sharingId);
+        return ResponseEntity.ok(response);
+    }
+}

src/main/java/com/example/gp_backend_data/graph/domain/dto/response/GraphShareResponse.java

@@ -0,0 +1,17 @@
+package com.example.gp_backend_data.graph.domain.dto.response;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import lombok.*;
+
+import java.util.UUID;
+
+@Getter
+@Setter
+@AllArgsConstructor
+@NoArgsConstructor
+@Builder
+public class GraphShareResponse {
+    private UUID graphId;
+    private UUID sharingId;
+    private JsonNode items;
+}

src/main/java/com/example/gp_backend_data/graph/service/GraphService.java

@@ -2,10 +2,14 @@
 
 import com.example.gp_backend_data.graph.domain.dto.request.GraphRequest;
 import com.example.gp_backend_data.graph.domain.dto.response.GraphResponse;
+import com.example.gp_backend_data.graph.domain.dto.response.GraphShareResponse;
 import com.example.gp_backend_data.graph.domain.entity.Graph;
 import com.example.gp_backend_data.graph.repository.GraphRepository;
+import com.example.gp_backend_data.space.domain.entity.Space;
+import com.example.gp_backend_data.space.repository.SpaceRepository;
 import com.example.gp_backend_data.utils.UUIDHelper;
 import com.fasterxml.jackson.databind.ObjectMapper;
+import jakarta.persistence.EntityNotFoundException;
 import lombok.RequiredArgsConstructor;
 import org.springframework.dao.DataIntegrityViolationException;
 import org.springframework.stereotype.Service;
@@ -19,6 +23,7 @@
 @Transactional
 public class GraphService {
     private final GraphRepository graphRepository;
+    private final SpaceRepository spaceRepository;
     private final ObjectMapper objectMapper;
     private final UUIDHelper uuidHelper;
 
@@ -41,6 +46,28 @@ public GraphResponse getGraphBySpaceId(UUID spaceId) {
         }
     }
 
+    //공유된 스페이스의 그래프 조회
+    @Transactional
+    public GraphShareResponse getSharedGraph(UUID sharingId) {
+
+        Space space = spaceRepository.findBySharingIdAndIsShared(uuidHelper.convertUUIDToByteArray(sharingId), true)
+                .orElseThrow(() -> new EntityNotFoundException("Shared space not found."));
+
+        Graph graph = graphRepository.findBySpaceId(space.getSpaceId())
+                .orElseThrow(() -> new EntityNotFoundException("Graph not found for shared space."));
+
+        try {
+            return new GraphShareResponse(
+                    uuidHelper.convertByteArrayToUUID(graph.getGraphId()),
+                    sharingId,
+                    objectMapper.readTree(graph.getData())
+            );
+        } catch (Exception e) {
+            throw new RuntimeException("Error parsing graph data", e);
+        }
+    }
+
+
     private Graph createNewGraphForSpace(byte[] spaceIdBytes) {
         try {
             UUID newGraphId = UUID.randomUUID();
@@ -90,5 +117,7 @@ public GraphResponse updateGraph(UUID graphId, GraphRequest request) {
         }
 
         return new GraphResponse(uuidHelper.convertByteArrayToUUID(graph.getGraphId()), uuidHelper.convertByteArrayToUUID(graph.getSpaceId()), request.getItems());
+
     }
-}
+
+}

src/main/java/com/example/gp_backend_data/space/repository/SpaceRepository.java

@@ -13,4 +13,5 @@ public interface SpaceRepository extends JpaRepository<Space, byte[]> {
     List<Space> findAllByUserId(byte[] userId, Sort sort);
     Optional<Space> findBySpaceIdAndUserId(byte[] spaceId, byte[] userId);
     List<Space> findByUserId(byte[] userId);
+    Optional<Space> findBySharingIdAndIsShared(byte[] sharingId, boolean isShared);
 }