增加客服分组管理

backend/internal/modules/chat/listing_group.go

@@ -8,6 +8,7 @@ import (
 	"gorm.io/gorm"
 	"gorm.io/gorm/clause"
 	"hfb_sys/backend/internal/model"
+	"hfb_sys/backend/internal/modules/supportgroup"
 )
 
 // 会话类型常量
@@ -56,10 +57,16 @@ func EnsureListingConversation(tx *gorm.DB, listing model.RentalListing, preferr
 		},
 	}
 
-	// 获取客服。开放上传场景优先拉上传管理员，普通发布回退到默认客服。
-	supportID := preferredSupportAdminID
+	// 获取收号组客服。分组未配置时回退到开放上传管理员或默认客服。
+	supportID, err := supportgroup.PickSupportAdmin(tx, supportgroup.GroupCodeOwnerOnboarding)
+	if err != nil {
+		return nil, err
+	}
 	if supportID <= 0 {
-		supportID = defaultSupportAdminID(tx)
+		supportID = preferredSupportAdminID
+		if supportID <= 0 {
+			supportID = defaultSupportAdminID(tx)
+		}
 	}
 	if supportID > 0 {
 		participants = append(participants, model.ChatParticipant{
@@ -123,7 +130,7 @@ func EnsureListingConversation(tx *gorm.DB, listing model.RentalListing, preferr
 	return &conversation, nil
 }
 
-// AddRenterToListingConversation 拉租客进发布群
+// AddRenterToListingConversation 拉租客与卖号组客服进发布群
 func AddRenterToListingConversation(tx *gorm.DB, listingID uint64, renterID uint64, orderNo string) error {
 	// 1. 查找发布群
 	var conv model.ChatConversation
@@ -150,8 +157,29 @@ func AddRenterToListingConversation(tx *gorm.DB, listingID uint64, renterID uint
 		return err
 	}
 
-	// 3. 发系统消息
+	// 3. 支付后由卖号组客服接入跟进交接和售后。
+	handoffSupportID, err := supportgroup.PickSupportAdmin(tx, supportgroup.GroupCodeRenterHandoff)
+	if err != nil {
+		return err
+	}
+	if handoffSupportID > 0 {
+		support := model.ChatParticipant{
+			ConversationID:  conv.ID,
+			ParticipantType: "admin",
+			ParticipantID:   handoffSupportID,
+			Role:            "support",
+			JoinedAt:        now,
+		}
+		if err := tx.Clauses(clause.OnConflict{DoNothing: true}).Create(&support).Error; err != nil {
+			return err
+		}
+	}
+
+	// 4. 发系统消息
 	message := "租客已加入群聊(订单 " + orderNo + ")"
+	if handoffSupportID > 0 {
+		message += "，卖号组客服已接入"
+	}
 	return sendSystemMessage(tx, conv.ID, message)
 }
 

backend/internal/modules/chat/support.go

@@ -34,9 +34,13 @@ type AdminConversationCountsDTO struct {
 func (r *Repository) TransferConversation(ctx context.Context, principal Principal, conversationID uint64, toAdminID uint64) error {
 	return r.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
 		// 验证当前操作者是会话参与者
-		if _, err := r.findParticipant(tx, principal, conversationID, false); err != nil {
+		current, err := r.findParticipant(tx, principal, conversationID, false)
+		if err != nil {
 			return err
 		}
+		if current.Role != "support" || current.ParticipantType != "admin" {
+			return ErrPermissionDenied
+		}
 		// 验证目标客服存在、活跃且拥有客服角色，避免转接给超级管理员。
 		if !adminIsSupport(tx, toAdminID) {
 			return fmt.Errorf("目标客服不存在、已禁用或不是客服角色")
@@ -51,20 +55,13 @@ func (r *Repository) TransferConversation(ctx context.Context, principal Princip
 		if count > 0 {
 			return fmt.Errorf("该客服已在会话中")
 		}
-		// 删除原客服参与者
-		if err := tx.Where("conversation_id = ? AND participant_type = ? AND role = ?", conversationID, "admin", "support").
-			Delete(&model.ChatParticipant{}).Error; err != nil {
-			return err
-		}
-		// 添加新客服参与者
-		participant := model.ChatParticipant{
-			ConversationID:  conversationID,
-			ParticipantType: "admin",
-			ParticipantID:   toAdminID,
-			Role:            "support",
-			JoinedAt:        time.Now(),
-		}
-		if err := tx.Create(&participant).Error; err != nil {
+		// 只转接当前客服本人，避免误删同群里的收号组/卖号组其他客服。
+		if err := tx.Model(&model.ChatParticipant{}).
+			Where("id = ?", current.ID).
+			Updates(map[string]interface{}{
+				"participant_id": toAdminID,
+				"joined_at":      time.Now(),
+			}).Error; err != nil {
 			return err
 		}
 		// 添加系统消息记录转接