nanjing_nft/src/main/java/com/izouma/nineth/repo/CollectionRepo.java

package com.izouma.nineth.repo;

import com.izouma.nineth.domain.Collection;
import com.izouma.nineth.dto.RecommendCollection;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.CachePut;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
import org.springframework.data.jpa.repository.Modifying;
import org.springframework.data.jpa.repository.Query;

import javax.annotation.Nonnull;
import javax.transaction.Transactional;
import java.time.LocalDateTime;
import java.util.List;
import java.util.Optional;

public interface CollectionRepo extends JpaRepository<Collection, Long>, JpaSpecificationExecutor<Collection> {
    @Query("update Collection t set t.del = true where t.id = ?1")
    @Modifying
    @Transactional
    @CacheEvict(value = {"collection", "recommend"}, allEntries = true)
    void softDelete(Long id);

    @Cacheable("collection")
    Optional<Collection> findById(Long id);

    Optional<Collection> findByIdAndDelFalse(Long id);

    @Query("update Collection t set t.likes = t.likes + ?2 where t.id = ?1")
    @Modifying
    @Transactional
    @CacheEvict(value = "collection", key = "#id")
    void addLike(Long id, int num);

    @Query(value = "select distinct c from Collection c join Like l on l.collectionId = c.id " +
            "where l.userId = ?1 and l.del = false and c.del = false")
    List<Collection> userLikes(Long userId);

    List<Collection> findByScheduleSaleTrueAndOnShelfFalseAndStartTimeBeforeAndDelFalse(LocalDateTime time);

    @Nonnull
    @CachePut(value = "collection", key = "#collection.id")
    Collection save(@Nonnull Collection collection);

    @Query("select new com.izouma.nineth.dto.RecommendCollection(c,r) from Collection c join Recommend r on c.id = r.collectionId " +
            "where c.del = false and c.onShelf = true and r.type = ?1 order by r.sort desc")
    List<RecommendCollection> recommend(String type);

    @Transactional
    @Modifying
    @Query("update Collection c set c.currentNumber = COALESCE(c.currentNumber, 0) + ?2 where c.id = ?1")
    @CacheEvict(value = "collection", key = "#id")
    void increaseNumber(Long id, int d);

    @Transactional
    @Modifying
    @Query("update Collection c set c.sale = COALESCE(c.sale, 0) + ?2 where c.id = ?1")
    @CacheEvict(value = "collection", key = "#id")
    void increaseSale(Long id, int d);

    @Transactional
    @Modifying
    @Query("update Collection c set c.stock = COALESCE(c.stock, 0) + ?2 where c.id = ?1")
    @CacheEvict(value = "collection", key = "#id")
    void increaseStock(Long id, int d);

    @Transactional
    @Modifying
    @Query("update Collection c set c.total = COALESCE(c.total, 0) + ?2 where c.id = ?1")
    @CacheEvict(value = "collection", key = "#id")
    void increaseTotal(Long id, int d);

    @Transactional
    @Modifying
    @Query("update Collection c set c.onShelf = ?2 where c.id = ?1")
    @CacheEvict(value = "collection", key = "#id")
    void setOnShelf(Long id, boolean onShelf);

    @Query("select c.currentNumber from Collection c where c.id = ?1")
    Optional<Integer> getCurrentNumber(Long id);
}