feat: 휴지통 관련 기능 구현

src/main/java/com/example/team2_be/album/page/AlbumPage.java

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+package com.example.team2_be.album.page;
+
+import com.example.team2_be.BaseEntity;
+import com.example.team2_be.album.Album;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+
+import javax.persistence.Entity;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToOne;
+import javax.persistence.Table;
+
+@Entity
+@Getter
+@ToString
+@NoArgsConstructor
+public class AlbumPage extends BaseEntity {
+    @ManyToOne
+    @JoinColumn(name = "album_id")
+    private Album album;
+}

src/main/java/com/example/team2_be/trash/Trash.java

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+package com.example.team2_be.trash;
+
+import com.example.team2_be.BaseEntity;
+import com.example.team2_be.album.page.AlbumPage;
+import com.example.team2_be.user.User;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+
+import javax.persistence.*;
+import java.time.LocalDateTime;
+
+@Entity
+@Getter
+@ToString
+@NoArgsConstructor
+public class Trash extends BaseEntity {
+    @ManyToOne
+    @JoinColumn(name = "user_id",nullable = false)
+    private User user;
+
+    @ManyToOne
+    @JoinColumn (name ="albumPage_id",nullable = false)
+    private AlbumPage albumPage;
+
+
+    @Column (nullable = false)
+    private LocalDateTime deleteAt;
+
+    @Builder
+    public Trash(Long id, User user, AlbumPage albumPage) {
+        super(id);
+        this.user = user;
+        this.albumPage =albumPage;
+        // 앨범 페이지 삭제 시간 - 여기서 할지 serviced에서 할지 테스트 필요
+        this.deleteAt = this.getCreateAt().plusDays(7);
+    }
+}

src/main/java/com/example/team2_be/trash/TrashController.java

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+package com.example.team2_be.trash;
+
+import com.example.team2_be.core.utils.ApiUtils;
+import com.example.team2_be.trash.dto.TrashesFindResponseDTO;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequiredArgsConstructor
+@RequestMapping("/albums/{albumId}/trashes")
+public class TrashController {
+
+    private final TrashService trashService;
+
+    //휴지통 조회 GET
+    @GetMapping
+    public ResponseEntity<ApiUtils.ApiResult<TrashesFindResponseDTO>> findTrashes (@PathVariable Long albumId){
+        TrashesFindResponseDTO findDTO = trashService.findTrashes(albumId);
+
+        return ResponseEntity.ok(ApiUtils.success(findDTO));
+    }
+
+    @PostMapping("/{trashId}")
+    public ResponseEntity<ApiUtils.ApiResult<Void>> restoreTrash(@PathVariable String albumId, @PathVariable Long trashId){
+        trashService.restoreTrash(trashId);
+
+        return ResponseEntity.ok(ApiUtils.success(null));
+    }
+}

src/main/java/com/example/team2_be/trash/TrashJPARepository.java

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+package com.example.team2_be.trash;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
+
+import java.util.List;
+
+public interface TrashJPARepository extends JpaRepository<Trash, Long> {
+    @Query("select t from Trash t where t.albumPage.album.id = :albumId")
+    List<Trash> findAllByAlbumId(@Param("albumId") Long albumId);
+}

src/main/java/com/example/team2_be/trash/TrashService.java

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+package com.example.team2_be.trash;
+
+import com.example.team2_be.core.error.exception.NotFoundException;
+import com.example.team2_be.trash.dto.TrashesFindResponseDTO;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.List;
+
+@Service
+@RequiredArgsConstructor
+@Transactional(readOnly = true)
+public class TrashService {
+
+    private final TrashJPARepository trashJPARepository;
+
+    public TrashesFindResponseDTO findTrashes(Long albumId){
+        List<Trash> trashes = trashJPARepository.findAllByAlbumId(albumId);
+
+        return new TrashesFindResponseDTO(albumId, trashes);
+    }
+
+    @Transactional
+    public void restoreTrash(Long trashId){
+        Trash trash = trashJPARepository.findById(trashId)
+                .orElseThrow(() -> new NotFoundException("해당 페이지가 휴지통 내에 존재하지 않습니다."));
+
+        trashJPARepository.delete(trash);
+    }
+}

src/main/java/com/example/team2_be/trash/dto/TrashesFindResponseDTO.java

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+package com.example.team2_be.trash.dto;
+
+import com.example.team2_be.trash.Trash;
+import lombok.Getter;
+
+import java.time.LocalDateTime;
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Getter
+public class TrashesFindResponseDTO {
+    private Long albumId;
+    private List<TrashDTO> trashes;
+
+
+    public TrashesFindResponseDTO(Long albumId, List<Trash> trashes){
+        this.albumId = albumId;
+        this.trashes = trashes.stream()
+                .map(TrashDTO::new)
+                .collect((Collectors.toList()));
+    }
+
+    @Getter
+    public static class TrashDTO{
+        private Long trashId;
+        private String image;
+        private String deleter;
+        private LocalDateTime createAt;
+        private LocalDateTime deleteAt;
+
+        public TrashDTO(Trash trash) {
+            this.trashId = trash.getId();
+            // 휴지통 페이지 미리보기 이미지 추가
+            this.deleter = trash.getUser().getNickname();
+            this.createAt = trash.getCreateAt();
+            this.deleteAt = trash.getDeleteAt();
+        }
+    }
+}
+