feat(distribution): 支持分销上传来源追踪、主站审核展示与收售结算模式自动判定

backend/internal/modules/listing/mutation.go

@@ -15,7 +15,7 @@ import (
 	"gorm.io/gorm/clause"
 )
 
-func (r *Repository) Create(ctx context.Context, ownerID uint64, req CreateRequest, reviewRequired bool, publishCooldown time.Duration) (*ListingDTO, error) {
+func (r *Repository) Create(ctx context.Context, ownerID uint64, req CreateRequest, reviewRequired bool, publishCooldown time.Duration, siteCode ...string) (*ListingDTO, error) {
 	var dto *ListingDTO
 	err := r.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
 		now := time.Now()
@@ -51,20 +51,44 @@ func (r *Repository) Create(ctx context.Context, ownerID uint64, req CreateReque
 		if err := tx.Create(&account).Error; err != nil {
 			return err
 		}
+
+		var site model.DistributionSite
+		var siteID *uint64
+		if len(siteCode) > 0 && strings.TrimSpace(siteCode[0]) != "" {
+			trimmedSiteCode := strings.TrimSpace(siteCode[0])
+			if err := tx.Where("site_code = ? AND status = 'active'", trimmedSiteCode).First(&site).Error; err == nil {
+				siteID = &site.ID
+			}
+		}
+
 		priceCent := normalizedListingPriceCent(req)
 		listing := model.RentalListing{
-			ListingNo:         listingNo,
-			AccountID:         account.ID,
-			OwnerID:           ownerID,
-			PriceCent:         priceCent,
-			DepositAmountCent: req.DepositAmountCent,
-			Status:            listingStatus,
-			ReviewStatus:      reviewStatus,
-			PublishedAt:       publishedAt,
+			ListingNo:          listingNo,
+			AccountID:          account.ID,
+			OwnerID:            ownerID,
+			PriceCent:          priceCent,
+			DepositAmountCent:  req.DepositAmountCent,
+			Status:             listingStatus,
+			ReviewStatus:       reviewStatus,
+			PublishedAt:        publishedAt,
+			DistributionSiteID: siteID,
 		}
 		if err := tx.Create(&listing).Error; err != nil {
 			return err
 		}
+
+		if siteID != nil {
+			dsa := model.DistributionSiteAccount{
+				SiteID:        *siteID,
+				AccountID:     account.ID,
+				ListingID:     listing.ID,
+				DisplayStatus: "enabled",
+			}
+			if err := tx.Create(&dsa).Error; err != nil {
+				return err
+			}
+		}
+
 		if err := listingstatus.AppendTransition(tx, &listing, "", listingstatus.SourceSeller, listingstatus.ActorUser, ownerID, "发布上架"); err != nil {
 			return err
 		}
@@ -80,6 +104,12 @@ func (r *Repository) Create(ctx context.Context, ownerID uint64, req CreateReque
 		}
 
 		dto = toDTO(account, listing)
+		if siteID != nil {
+			dto.DistributionSiteID = siteID
+			dto.DistributionSiteCode = site.SiteCode
+			dto.DistributionSiteName = site.SiteName
+			dto.SourceChannel = fmt.Sprintf("分销站 - %s (%s)", site.SiteName, site.SiteCode)
+		}
 		dto.ListingGroupConversationID = conversationID
 		return nil
 	})