第 5 阶段：纠纷、通知与后台-1

backend/internal/modules/order/repository.go

@@ -9,6 +9,7 @@ import (
 	"time"
 
 	"hfb_sys/backend/internal/model"
+	"hfb_sys/backend/internal/modules/notification"
 	"hfb_sys/backend/internal/modules/wallet"
 
 	"gorm.io/datatypes"
@@ -90,6 +91,26 @@ func (r *Repository) Create(renterID uint64, req CreateRequest) (*OrderDTO, erro
 		); err != nil {
 			return err
 		}
+		if err := notification.Append(tx,
+			notification.Entry{
+				UserID:  order.OwnerID,
+				Type:    "order",
+				Title:   "收到新的租号订单",
+				Content: "租客已下单，请尽快提交交接说明。",
+				BizType: "order",
+				BizID:   &orderID,
+			},
+			notification.Entry{
+				UserID:  order.RenterID,
+				Type:    "order",
+				Title:   "订单已创建",
+				Content: "账号已锁定，等待号主提交交接说明。",
+				BizType: "order",
+				BizID:   &orderID,
+			},
+		); err != nil {
+			return err
+		}
 		listing.Status = "rented"
 		account.Status = "rented"
 		if err := tx.Save(&listing).Error; err != nil {
@@ -144,6 +165,26 @@ func (r *Repository) Cancel(userID uint64, orderID uint64) error {
 		); err != nil {
 			return err
 		}
+		if err := notification.Append(tx,
+			notification.Entry{
+				UserID:  order.OwnerID,
+				Type:    "order",
+				Title:   "订单已取消",
+				Content: "租客已取消待交接订单，账号已重新释放。",
+				BizType: "order",
+				BizID:   &orderID,
+			},
+			notification.Entry{
+				UserID:  order.RenterID,
+				Type:    "order",
+				Title:   "订单取消成功",
+				Content: "待交接订单已取消，模拟冻结金额已释放。",
+				BizType: "order",
+				BizID:   &orderID,
+			},
+		); err != nil {
+			return err
+		}
 		listing.Status = "published"
 		account.Status = "published"
 		if err := tx.Save(&order).Error; err != nil {
@@ -180,6 +221,17 @@ func (r *Repository) SubmitHandoff(userID uint64, orderID uint64, req SubmitHand
 			return err
 		}
 		order.HandoffStatus = "pending_renter_confirm"
+		orderID := order.ID
+		if err := notification.Append(tx, notification.Entry{
+			UserID:  order.RenterID,
+			Type:    "handoff",
+			Title:   "号主已提交交接说明",
+			Content: "请查看交接记录，确认账号可正常登录后点击确认收号。",
+			BizType: "order",
+			BizID:   &orderID,
+		}); err != nil {
+			return err
+		}
 		if err := tx.Save(&order).Error; err != nil {
 			return err
 		}
@@ -215,6 +267,17 @@ func (r *Repository) ConfirmReceive(userID uint64, orderID uint64) error {
 		order.RentStartAt = &now
 		rentEnd := now.Add(time.Duration(order.RentHours) * time.Hour)
 		order.RentEndAt = &rentEnd
+		orderID := order.ID
+		if err := notification.Append(tx, notification.Entry{
+			UserID:  order.OwnerID,
+			Type:    "handoff",
+			Title:   "租客已确认收号",
+			Content: "订单已进入租赁中。",
+			BizType: "order",
+			BizID:   &orderID,
+		}); err != nil {
+			return err
+		}
 		return tx.Save(&order).Error
 	})
 }
@@ -262,6 +325,17 @@ func (r *Repository) SubmitReturn(userID uint64, orderID uint64, req SubmitRetur
 		order.Status = "pending_return_confirm"
 		order.HandoffStatus = "pending_owner_return_confirm"
 		order.RentEndAt = &now
+		orderID := order.ID
+		if err := notification.Append(tx, notification.Entry{
+			UserID:  order.OwnerID,
+			Type:    "return",
+			Title:   "租客已提交归还",
+			Content: "请检查账号状态，确认无误后完成订单。",
+			BizType: "order",
+			BizID:   &orderID,
+		}); err != nil {
+			return err
+		}
 		if err := tx.Save(&order).Error; err != nil {
 			return err
 		}
@@ -340,6 +414,26 @@ func (r *Repository) ConfirmReturn(userID uint64, orderID uint64) error {
 		); err != nil {
 			return err
 		}
+		if err := notification.Append(tx,
+			notification.Entry{
+				UserID:  order.RenterID,
+				Type:    "settlement",
+				Title:   "订单已完成",
+				Content: "号主已确认归还，模拟押金已退回。",
+				BizType: "order",
+				BizID:   &orderID,
+			},
+			notification.Entry{
+				UserID:  order.OwnerID,
+				Type:    "settlement",
+				Title:   "订单已完成",
+				Content: "订单已完成，模拟租金已入账。",
+				BizType: "order",
+				BizID:   &orderID,
+			},
+		); err != nil {
+			return err
+		}
 		listing.Status = "published"
 		account.Status = "published"
 		if err := tx.Save(&order).Error; err != nil {