raex_back/src/main/java/com/izouma/nineth/service/MetaAccessoriesService.java

package com.izouma.nineth.service;

import com.izouma.nineth.config.Constants;
import com.izouma.nineth.domain.Asset;
import com.izouma.nineth.domain.MetaAccessories;
import com.izouma.nineth.domain.MetaAccessoriesPurchaseRecord;
import com.izouma.nineth.domain.MetaUserGold;
import com.izouma.nineth.dto.MetaRestResult;
import com.izouma.nineth.dto.PageQuery;
import com.izouma.nineth.enums.MetaPurchaseMethodEnum;
import com.izouma.nineth.repo.AssetRepo;
import com.izouma.nineth.repo.MetaAccessoriesPurchaseRecordRepo;
import com.izouma.nineth.repo.MetaAccessoriesRepo;
import com.izouma.nineth.utils.JpaUtils;
import com.izouma.nineth.web.MetaUserGoldController;
import lombok.AllArgsConstructor;
import org.apache.commons.collections.CollectionUtils;
import org.springframework.data.domain.Page;
import org.springframework.stereotype.Service;

import javax.transaction.Transactional;
import java.util.List;
import java.util.Objects;

@Service
@AllArgsConstructor
public class MetaAccessoriesService {

    private MetaAccessoriesRepo               metaAccessoriesRepo;
    private MetaAccessoriesPurchaseRecordRepo metaAccessoriesPurchaseRecordRepo;
    private MetaUserGoldService               metaUserGoldService;
    private MetaUserGoldController            metaUserGoldController;
    private AssetRepo                         assetRepo;

    public Page<MetaAccessories> all(PageQuery pageQuery) {
        return metaAccessoriesRepo.findAll(JpaUtils.toSpecification(pageQuery, MetaAccessories.class), JpaUtils.toPageRequest(pageQuery));
    }

    @Transactional
    public MetaRestResult<Integer> purchase(Long userId, List<Long> metaAccessoriesIds) {
        List<MetaAccessoriesPurchaseRecord> exist = metaAccessoriesPurchaseRecordRepo.findByUserIdAndMetaAccessoriesIdIn(userId, metaAccessoriesIds);
        if (CollectionUtils.isNotEmpty(exist)) {
            return MetaRestResult.returnError("部分配饰已经购买过，请重新选择配饰！");
        }
        int total = 0;
        for (Long id : metaAccessoriesIds) {
            MetaAccessories metaAccessories = metaAccessoriesRepo.findByIdAndDel(id, false);
            if (Objects.isNull(metaAccessories)) {
                return MetaRestResult.returnError(String.format("id:[%S]的配饰信息不存在！", id));
            }
            if (!MetaPurchaseMethodEnum.GOLD.equals(metaAccessories.getPurchaseMethod())) {
                return MetaRestResult.returnError(String.format("当前配饰[%S]不允许金币购买！", id));
            }
            total = total + metaAccessories.getPrice();
        }
        MetaRestResult<Integer> restResultForNum = metaUserGoldController.queryGoldNum(userId);
        if (Constants.MetaRestCode.success != restResultForNum.getCode()) {
            return MetaRestResult.returnError(restResultForNum.getMessage());
        }
        if (total > restResultForNum.getData()) {
            return MetaRestResult.returnError(String.format("金币不足：当前配饰总共需要金币[%S]个，当前用户剩余金币[%S]个", total, restResultForNum.getData()));
        }
        MetaRestResult<MetaUserGold> restResult = metaUserGoldService.changeNum(userId, -total, String.format("玩家[%S]购买配饰[%S]，支出[%S]个金币", userId, metaAccessoriesIds, total));
        if (Constants.MetaRestCode.success != restResult.getCode()) {
            return MetaRestResult.returnError(restResult.getMessage());
        }
        metaAccessoriesIds.forEach(id -> {
            metaAccessoriesPurchaseRecordRepo.save(new MetaAccessoriesPurchaseRecord(userId, id));
        });
        return MetaRestResult.returnSuccess("购买成功", restResult.getData().getNum());
    }

    public MetaRestResult<List<MetaAccessories>> hold(Long userId) {
        List<MetaAccessories> list = metaAccessoriesRepo.findByDel(false);
        if (CollectionUtils.isEmpty(list)) {
            return MetaRestResult.returnError("当前未配置任何配饰!");
        }
        list.forEach(metaAccessories -> {
            if (MetaPurchaseMethodEnum.GOLD.equals(metaAccessories.getPurchaseMethod())) {
                MetaAccessoriesPurchaseRecord metaAccessoriesPurchaseRecord = metaAccessoriesPurchaseRecordRepo.findByUserIdAndMetaAccessoriesId(userId, metaAccessories.getId());
                if (Objects.nonNull(metaAccessoriesPurchaseRecord)) {
                    metaAccessories.setHold(true);
                }
            }
            if (MetaPurchaseMethodEnum.NFT.equals(metaAccessories.getPurchaseMethod())) {
                List<Asset> assets = assetRepo
                        .findAllByUserIdAndStatusInAndNameLike(userId, Constants.META_NORMAL_STATUS, "%" + metaAccessories
                                .getCollectionName() + "%");
                metaAccessories.setHold(CollectionUtils.isNotEmpty(assets));
            }
        });
        return MetaRestResult.returnSuccess(list);
    }
}