82 lines
3.1 KiB
Go
82 lines
3.1 KiB
Go
package promo
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import (
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"context"
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promomodel "github.com/perfect-panel/server/internal/model/promo"
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subscribeModel "github.com/perfect-panel/server/internal/model/subscribe"
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"github.com/perfect-panel/server/internal/svc"
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"github.com/perfect-panel/server/internal/types"
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"github.com/perfect-panel/server/pkg/logger"
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"github.com/perfect-panel/server/pkg/xerr"
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"github.com/pkg/errors"
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)
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type SetPriceLogic struct {
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logger.Logger
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ctx context.Context
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svcCtx *svc.ServiceContext
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}
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func NewSetPriceLogic(ctx context.Context, svcCtx *svc.ServiceContext) *SetPriceLogic {
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return &SetPriceLogic{
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Logger: logger.WithContext(ctx),
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ctx: ctx,
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svcCtx: svcCtx,
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}
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}
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func (l *SetPriceLogic) SetPrice(req *types.SetPromoPriceRequest) error {
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if _, err := l.svcCtx.PromoModel.FindRule(l.ctx, req.PromoRuleId); err != nil {
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l.Errorw("[SetPromoPrice] Find Rule Error", logger.Field("error", err.Error()))
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return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find promo rule error: %v", err.Error())
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}
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subscribeIds := make([]int64, 0, len(req.Items))
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seenSubscribeIds := make(map[int64]struct{}, len(req.Items))
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for _, item := range req.Items {
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if _, ok := seenSubscribeIds[item.SubscribeId]; ok {
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continue
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}
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seenSubscribeIds[item.SubscribeId] = struct{}{}
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subscribeIds = append(subscribeIds, item.SubscribeId)
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}
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var subscribes []*subscribeModel.Subscribe
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if err := l.svcCtx.DB.WithContext(l.ctx).Model(&subscribeModel.Subscribe{}).Where("id IN ?", subscribeIds).Find(&subscribes).Error; err != nil {
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l.Errorw("[SetPromoPrice] Find Subscribe Error", logger.Field("error", err.Error()))
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return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find subscribe error: %v", err.Error())
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}
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subscribeById := make(map[int64]*subscribeModel.Subscribe, len(subscribes))
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for _, sub := range subscribes {
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subscribeById[sub.Id] = sub
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}
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items := make([]*promomodel.SubscribePromo, 0, len(req.Items))
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cacheKeys := make([]string, 0, len(req.Items))
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for _, item := range req.Items {
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sub, ok := subscribeById[item.SubscribeId]
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if !ok {
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return errors.Wrapf(xerr.NewErrCode(xerr.InvalidParams), "subscribe plan not found")
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}
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originPrice := sub.UnitPrice * item.Quantity
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if item.PromoPrice >= originPrice {
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return errors.Wrapf(xerr.NewErrCode(xerr.InvalidParams), "promo_price must be less than unit_price * quantity")
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}
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items = append(items, &promomodel.SubscribePromo{
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SubscribeId: item.SubscribeId,
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PromoRuleId: req.PromoRuleId,
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Quantity: item.Quantity,
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PromoPrice: item.PromoPrice,
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})
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cacheKeys = append(cacheKeys, subscribePromoCacheKey(item.SubscribeId))
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}
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if err := l.svcCtx.PromoModel.UpsertPrices(l.ctx, req.PromoRuleId, items); err != nil {
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l.Errorw("[SetPromoPrice] Database Error", logger.Field("error", err.Error()))
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return errors.Wrapf(xerr.NewErrCode(xerr.DatabaseUpdateError), "set promo price error: %v", err.Error())
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}
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if len(cacheKeys) > 0 {
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if err := l.svcCtx.Redis.Del(l.ctx, cacheKeys...).Err(); err != nil {
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l.Errorw("[SetPromoPrice] Delete Cache Error", logger.Field("error", err.Error()))
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}
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}
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return nil
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}
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