xin
2025-07-19 8841ef182bbe06a7ef1f102f51810502dde0a76f
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package com.oying.modules.pc.product.service.impl;
 
import cn.hutool.core.collection.CollectionUtil;
import cn.hutool.core.util.ObjUtil;
import com.alibaba.fastjson2.JSON;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.oying.exception.BadRequestException;
import com.oying.exception.EntityNotFoundException;
import com.oying.modules.pc.common.core.constrant.AuditStatusEnum;
import com.oying.modules.pc.product.converter.ProductImageAssembler;
import com.oying.modules.pc.product.converter.ProductLabelAssembler;
import com.oying.modules.pc.product.domain.Product;
import com.oying.modules.pc.product.domain.ProductAudit;
import com.oying.modules.pc.product.domain.ProductImage;
import com.oying.modules.pc.product.domain.ProductLabel;
import com.oying.modules.pc.product.domain.dto.ProductAuditData;
import com.oying.modules.pc.product.domain.dto.ProductImageCreateRequest;
import com.oying.modules.pc.product.domain.dto.ProductMerchantCreateRequest;
import com.oying.modules.pc.product.domain.dto.ProductMerchantUpdateRequest;
import com.oying.modules.pc.product.domain.enums.ProductChangeTypeEnum;
import com.oying.modules.pc.product.domain.enums.ProductStatusEnum;
import com.oying.modules.pc.product.events.ProductAuditVerdictEvent;
import com.oying.modules.pc.product.service.*;
import com.oying.modules.pc.utils.ImageUtils;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.context.event.EventListener;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
 
import java.util.List;
import java.util.Optional;
import java.util.Set;
import java.util.stream.Collectors;
 
@Slf4j
@Service
@RequiredArgsConstructor
public class ProductMerchantServiceImpl implements ProductMerchantService {
 
    private final ProductService productService;
    private final ProductImageService productImageService;
    private final ProductLabelService productLabelService;
    private final ProductAuditService productAuditService;
 
    @Override
    @Transactional(rollbackFor = Exception.class)
    public void create(ProductMerchantCreateRequest request) {
        Product product = new Product();
        BeanUtils.copyProperties(request, product);
        request.getImages().stream().findFirst().map(ProductImageCreateRequest::getUploadFileId)
                .ifPresent(id -> {
                    product.setMainImageId(id.toString());
                    product.setMainImageUrl(ImageUtils.getPublicObjectUrl(id));
                });
        product.setStatus(ProductStatusEnum.DRAFT.getValue());
        productService.create(product);
 
        List<ProductImage> productImages = request.getImages().stream().map(i -> {
            i.setProductId(product.getProductId());
            return ProductImageAssembler.to(i);
        }).collect(Collectors.toList());
        if (CollectionUtil.isNotEmpty(productImages)) {
            productImageService.saveBatch(productImages);
        }
 
        List<ProductLabel> productLabels = request.getLabels().stream().map(i -> {
            i.setProductId(product.getProductId());
            return ProductLabelAssembler.to(i);
        }).collect(Collectors.toList());
        if (CollectionUtil.isNotEmpty(productLabels)) {
            productLabelService.saveBatch(productLabels);
        }
    }
 
    @Override
    @Transactional(rollbackFor = Exception.class)
    public void update(ProductMerchantUpdateRequest request) {
        Product existingProduct = this.findOrThrow(request.getProductId());
        this.validateApprovedStatus(existingProduct.getShelfStatus());
        this.processImagesUpdate(request);
        this.processLabelsUpdate(request);
        BeanUtils.copyProperties(request, existingProduct);
        productService.update(existingProduct);
    }
 
    @Override
    @Transactional(rollbackFor = Exception.class)
    public void updateImages(ProductMerchantUpdateRequest request) {
        Product existingProduct = this.findOrThrow(request.getProductId());
        this.validateApprovedStatus(existingProduct.getShelfStatus());
        this.findOrThrow(request.getProductId());
        this.processImagesUpdate(request);
    }
 
    @Override
    @Transactional(rollbackFor = Exception.class)
    public void updateLabels(ProductMerchantUpdateRequest request) {
        Product existingProduct = this.findOrThrow(request.getProductId());
        this.validateApprovedStatus(existingProduct.getShelfStatus());
        this.findOrThrow(request.getProductId());
        this.processImagesUpdate(request);
    }
 
    @Transactional
    @Override
    public void batchDelete(List<Long> ids) {
        productService.deleteAll(ids);
    }
 
    @Override
    public void putOnShelf(Long productId) {
        Product existingProduct = productService.getById(productId);
        if (ProductStatusEnum.AVAILABLE.getValue().equals(existingProduct.getShelfStatus())) {
            throw new BadRequestException("商品已上架");
        }
 
        if (productAuditService.hasPendingByStoreId(productId)) {
            throw new BadRequestException("已在审核中");
        }
 
        ProductAudit audit = new ProductAudit();
        audit.setProductId(productId);
        audit.setType(ProductChangeTypeEnum.PUT_ON_SHELF.name());
        audit.setStatus(AuditStatusEnum.PENDING.getValue());
        ProductAuditData auditData = new ProductAuditData();
        auditData.setOriginalStore(existingProduct);
        audit.setData(JSON.toJSONString(auditData));
        productAuditService.create(audit);
        LambdaUpdateWrapper<Product> wrapper = new LambdaUpdateWrapper<Product>()
                .eq(Product::getProductId, productId)
                .set(Product::getStatus, ProductStatusEnum.PENDING.getValue());
        productService.update(wrapper);
    }
 
    @Override
    public void takeOffShelf(Long productId) {
        Product existingProduct = productService.getById(productId);
        if (ProductStatusEnum.NO_AVAILABLE.getValue().equals(existingProduct.getShelfStatus())) {
            return;
        }
        LambdaUpdateWrapper<Product> wrapper = new LambdaUpdateWrapper<Product>()
                .eq(Product::getProductId, productId)
                .set(Product::getStatus, ProductStatusEnum.NO_AVAILABLE.getValue())
                .set(Product::getShelfStatus, ProductStatusEnum.NO_AVAILABLE.getValue());
        productService.update(wrapper);
    }
 
    @Override
    @EventListener
    @Transactional(rollbackFor = Exception.class)
    public void handleAuditVerdictEvent(ProductAuditVerdictEvent event) {
        try {
            ProductAudit audit = productAuditService.getById(event.getAuditId());
            ProductChangeTypeEnum changeType = ProductChangeTypeEnum.valueOf(audit.getType());
            if (changeType == ProductChangeTypeEnum.PUT_ON_SHELF) {
                this.handlePutOnShelfAuditEvent(audit);
            }
        } catch (Exception e) {
            log.error("处理商品审核结果异常", e);
        }
    }
 
    private Product findOrThrow(Long productId) {
        Product existingProduct = productService.getById(productId);
        if (ObjUtil.isEmpty(existingProduct)) {
            throw new EntityNotFoundException(Product.class, "id", Optional.ofNullable(productId).map(Object::toString).orElse("null"));
        }
        return existingProduct;
    }
 
    private void processImagesUpdate(ProductMerchantUpdateRequest request) {
        if (CollectionUtil.isNotEmpty(request.getDeletedImageIds())) {
            productImageService.deleteAll(request.getDeletedImageIds());
        }
        if (CollectionUtil.isNotEmpty(request.getUpdatedImages())) {
            productImageService.batchUpdate(request.getUpdatedImages());
        }
        if (CollectionUtil.isNotEmpty(request.getNewImages())) {
            List<ProductImageCreateRequest> newImages = request.getNewImages().stream().peek(i-> i.setProductId(request.getProductId())).collect(Collectors.toList());
            productImageService.batchCreate(newImages);
        }
    }
 
    private void processLabelsUpdate(ProductMerchantUpdateRequest request) {
        if (CollectionUtil.isNotEmpty(request.getDeletedLabelIds())) {
            productLabelService.deleteAll(request.getDeletedLabelIds());
        }
        if (CollectionUtil.isNotEmpty(request.getUpdatedLabels())) {
            productLabelService.batchUpdate(request.getUpdatedLabels());
        }
        if (CollectionUtil.isNotEmpty(request.getNewLabels())) {
            List<ProductLabel> newLabels = request.getNewLabels().stream().peek(i-> i.setProductId(request.getProductId())).collect(Collectors.toList());
            productLabelService.batchCreate(newLabels);
        }
    }
 
    private void handlePutOnShelfAuditEvent(ProductAudit audit) {
        AuditStatusEnum auditStatus = AuditStatusEnum.get(audit.getStatus());
        Product existingProduct = productService.getById(audit.getProductId());
        if (AuditStatusEnum.APPROVED.equals(auditStatus)) {
            existingProduct.setStatus(ProductStatusEnum.AVAILABLE.getValue());
            existingProduct.setShelfStatus(ProductStatusEnum.AVAILABLE.getValue());
        } else {
            existingProduct.setStatus(auditStatus.getValue());
        }
        productService.updateById(existingProduct);
    }
 
    private void validateApprovedStatus(Integer status) {
        Set<ProductStatusEnum> statusEnumSet = CollectionUtil.newHashSet(ProductStatusEnum.PENDING,
                ProductStatusEnum.UNDER_REVIEW, ProductStatusEnum.AVAILABLE);
        ProductStatusEnum existingStatus = ProductStatusEnum.getOrDefault(status, ProductStatusEnum.DRAFT);
        if (statusEnumSet.contains(existingStatus)) {
            throw new BadRequestException("在售商品无法修改");
        }
    }
}