joybuywork/internal/service/containers/campaignuser/exchange.go

package campaignuser

import (
	"joybuywork/internal/app"
	"joybuywork/internal/consts"
	"joybuywork/internal/consts/ckey"
	"joybuywork/internal/plugins/jsonm"
	"joybuywork/internal/repository/cache"
	"joybuywork/internal/repository/finder"
	"joybuywork/internal/repository/model"
	"joybuywork/internal/repository/mtype"
	"joybuywork/internal/repository/withdefault"
	"joybuywork/internal/service/provider/fissionaction"
	"joybuywork/internal/service/provider/malls"
	"joybuywork/internal/service/provider/players"
	"joybuywork/internal/service/provider/projectuser"
	"joybuywork/internal/service/provider/stocks"
	"joybuywork/internal/service/queue/producer"
	"joybuywork/internal/service/queue/types"
	"joybuywork/internal/utils/logic"
	"joybuywork/internal/utils/verify"
	pb "joybuywork/proto/go_proto/w_campaign_user"
	"joybuywork/proto/go_proto/workerr"
	"time"
)

const (
	exchangeStatusOk         = iota // 成功
	exchangeStatusLack              // 库存不足
	exchangeStatusLimit             // 兑换上限
	exchangeStatusDown              // 商品已下架
	exchangeStatusPointLack         // 积分不足
	exchangeStatusExchanging        // 兑换中
	exchangeStatusFail              // 兑换失败
)

type Exchange struct {
	logic.Logic

	Req *pb.ExchangeReq
	Res *pb.ExchangeRes
}

func (s *Exchange) Run() (err error) {
	return logic.Run(s)
}

func (s *Exchange) Data() (data jsonm.JsonM) {
	data, _ = jsonm.Marshal(s.Req)
	return
}

func (s *Exchange) Exec() (err error) {
	cpn, user, err := s.user()
	if err != nil {
		return
	}

	pu, item, err := s.pu(cpn, user)
	if err != nil || item == nil {
		return
	}

	err = s.checkItem(item)
	if err != nil || s.Res.GetStatus() != exchangeStatusOk {
		return
	}

	exchanging := app.NewRedisLock(s.Ctx, ckey.MallItemExchanging(pu.GetProjectUser().ID))
	if !exchanging.SoftLock() {
		s.Res.Status = exchangeStatusExchanging
		return
	}
	defer exchanging.Release()

	return s.exchange(pu, item, user, cpn)
}

func (s *Exchange) user() (cpn *model.FissionCampaign, user *model.FissionUser, err error) {
	cpn, err = finder.Campaign(s.Ctx, s.Req.GetCampaignId())
	if err != nil {
		err = s.BE().CacheError(err)
		return
	}

	if cpn == nil || cpn.IsDel == mtype.Yes {
		err = workerr.NotFound("not found cpn")
		return
	}

	user, err = finder.FissionUser(s.Ctx, cpn.ID, s.Req.GetUserId())
	if err != nil {
		err = s.BE().CacheError(err)
		return
	}

	if user == nil {
		err = workerr.UnauthorizedError
		return
	}

	return
}

func (s *Exchange) pu(cpn *model.FissionCampaign, user *model.FissionUser) (pu *projectuser.ProjectUser, item *model.RedeemMallItem, err error) {
	pu, err = projectuser.NewProjectUser(s.Ctx, projectuser.WithInit(cpn.ProjectID, user.SubUserID), projectuser.WithDao(s.GetDao()))
	if err != nil {
		return
	}

	item, err = cache.NewRedeemMallItem(s.Ctx).FindById(s.Req.GetMallItemId())
	if err != nil {
		err = s.BE().CacheError(err)
		return
	}

	if item == nil {
		s.Res.Status = exchangeStatusDown
		return
	}

	return

}

func (s *Exchange) checkItem(item *model.RedeemMallItem) (err error) {
	if verify.InArray[int32](item.GetStatus(), mtype.RedeemMallItemStatusDel, mtype.RedeemMallItemStatusDown) {
		s.Res.Status = exchangeStatusDown
		return
	}

	stock, err := stocks.NewMallItem(s.Ctx, item.ID)
	if err != nil {
		return
	}

	ok, err := stock.DecrPoolAndAdd(item.ID, 1)
	if err != nil {
		return
	}

	if !ok {
		s.Res.Status = exchangeStatusLack
		return
	}

	s.AddErrRun(func() (err error) {
		_, _ = stock.DecrPoolAndAdd(item.ID, -1)
		return
	})

	s.AddErrRun(func() (err error) {
		if s.Res.Status != exchangeStatusOk {
			_, _ = stock.DecrPoolAndAdd(item.ID, -1)
		}
		return
	})

	return
}

func (s *Exchange) exchange(pu *projectuser.ProjectUser, item *model.RedeemMallItem, user *model.FissionUser, cpn *model.FissionCampaign) (err error) {
	coin, err := pu.GetCoin()
	if err != nil {
		return
	}

	if coin.Num < int64(item.CoinNum) {
		s.Res.Status = exchangeStatusPointLack
		return
	}

	ok, err := pu.Deduct(mtype.ProjectUserCoinUseSourceCampaign, mtype.ProjectUserCoinDerMall, user.CampaignID, item.CoinNum)
	if err != nil {
		return
	}

	if !ok {
		s.Rollback("项目用户积分币不足")
		s.Res.Status = exchangeStatusPointLack
		return
	}

	mall, err := malls.NewMall(s.Ctx, item.MallID)
	if err != nil {
		return
	}

	reward, mallRecord, info, err := mall.ExchangeRecord(item, user.LangMark)
	if err != nil {
		return
	}

	record := withdefault.FissionRewardRecord(&model.FissionRewardRecord{
		CampaignID:     user.CampaignID,
		UserID:         user.ID,
		RewardID:       reward.ID,
		Title:          info.Title,
		ImgURL:         info.ImgUrl,
		RewardType:     mtype.FissionCampaignRewardTypeExchange,
		RewardNum:      1,
		BaseRewardID:   reward.ID,
		PropMark:       mtype.FissionCampaignRewardPropMarkReward,
		MallRecordID:   mallRecord.ID,
		ExchangePoints: int32(mallRecord.CoinNum),
	})

	err = s.GetDao().FissionRewardRecord.WithContext(s.Ctx).Create(record)
	if err != nil {
		err = s.BE().MysqlError(err)
		return
	}

	err = s.GetDao().FissionRewardRecord.SubTable(user.CampaignID).WithContext(s.Ctx).Create(record)
	if err != nil {
		err = s.BE().MysqlError(err)
		return
	}

	err = s.GetDao().FissionClientReward.WithContext(s.Ctx).Create(withdefault.FissionClientReward(&model.FissionClientReward{
		UserID:     user.SubUserID,
		ProjectID:  pu.GetProjectUser().ProjectID,
		CampaignID: user.CampaignID,
		RecordID:   record.ID,
		CreatedAt:  record.CreatedAt,
	}))
	if err != nil {
		err = s.BE().MysqlError(err)
		return
	}

	err = s._fissionCallback(cpn, user, item)
	if err != nil {
		return
	}

	s.AddAfterRun(func() (err error) {
		bp := fissionaction.NewMarkPoint(s.Ctx).InApp(user)
		if item.CoinNum > 0 {
			bp.PointsUse(time.Now().Unix(), item.CoinNum)
		}
		bp.MallRedeem(time.Now().Unix(), item.MallID, item.ID, item.CoinNum)

		producer.NewCampaignNotice(s.Ctx).CampaignRewardNotify(types.CampaignRewardNotify{
			CampaignId:   user.CampaignID,
			UserId:       user.ID,
			UserRewardId: record.ID,
		})

		return
	})

	s.Res.Status = exchangeStatusOk
	s.Res.Id = record.ID
	s.Res.RewardId = info.Id
	s.Res.Title = info.Title
	s.Res.ImgUrl = info.ImgUrl
	s.Res.ReceiveType = info.ReceiveType
	s.Res.Contact = info.Contact
	s.Res.OpenToUse = info.OpenToUse
	s.Res.CustomRewardVal = record.CustomRewardVal
	s.Res.WebUrl = info.WebUrl
	s.Res.AppParam = info.AppParam
	s.Res.PcParam = info.PcParam
	s.Res.FailType = record.FailType
	s.Res.FailMsg = record.FailMsg
	s.Res.KvData = make([]*pb.ExchangeRes_KV, 0, len(info.KvData))

	for _, datum := range info.KvData {
		s.Res.KvData = append(s.Res.KvData, &pb.ExchangeRes_KV{
			Key:    datum.Key,
			Value:  datum.Value,
			IsShow: datum.IsShow,
		})
	}

	return
}

func (s *Exchange) _fissionCallback(cpn *model.FissionCampaign, user *model.FissionUser, item *model.RedeemMallItem) (err error) {
	switch cpn.FissionID {
	case consts.IdVs:
		player, err1 := players.NewVs(s.Ctx, user, players.SetCpn(cpn), players.SetDao(s.GetDao()))
		if err1 != nil {
			return err1
		}
		err = player.Exchange(item)
		if err != nil {
			return
		}
	}

	return
}