实现 RecordSickPigRecovery

internal/domain/pig/pig_batch_service_pig_sick.go

@@ -86,7 +86,70 @@ func (s *pigBatchService) RecordSickPigs(operatorID uint, batchID uint, penID ui
 
 // RecordSickPigRecovery 记录病猪康复事件。
 func (s *pigBatchService) RecordSickPigRecovery(operatorID uint, batchID uint, penID uint, quantity int, treatmentLocation models.PigBatchSickPigTreatmentLocation, happenedAt time.Time, remarks string) error {
-	panic("implement me")
+	if quantity <= 0 {
+		return errors.New("康复猪只数量必须大于0")
+	}
+
+	var err error
+	err = s.uow.ExecuteInTransaction(func(tx *gorm.DB) error {
+		// 1. 检查批次是否活跃
+		batch, err := s.pigBatchRepo.GetPigBatchByIDTx(tx, batchID)
+		if err != nil {
+			if errors.Is(err, gorm.ErrRecordNotFound) {
+				return ErrPigBatchNotFound
+			}
+			return fmt.Errorf("获取批次 %d 失败: %w", batchID, err)
+		}
+		if !batch.IsActive() {
+			return fmt.Errorf("批次 %d 不活跃，无法记录病猪康复事件", batchID)
+		}
+
+		// 2. 检查猪栏是否关联
+		pen, err := s.transferSvc.GetPenByID(tx, penID)
+		if err != nil {
+			if errors.Is(err, gorm.ErrRecordNotFound) {
+				return ErrPenNotFound
+			}
+			return fmt.Errorf("获取猪栏 %d 失败: %w", penID, err)
+		}
+		if pen.PigBatchID == nil || *pen.PigBatchID != batchID {
+			return fmt.Errorf("猪栏 %d 未与批次 %d 关联", penID, batchID)
+		}
+
+		// 3. 检查当前病猪数量是否足够康复
+		currentSickPigs, err := s.sickSvc.GetCurrentSickPigCount(tx, batchID)
+		if err != nil {
+			return fmt.Errorf("获取批次 %d 当前病猪数量失败: %w", batchID, err)
+		}
+
+		if currentSickPigs < quantity {
+			return fmt.Errorf("当前病猪数量不足，当前病猪 %d 头，尝试康复 %d 头", currentSickPigs, quantity)
+		}
+
+		// 4. 创建病猪日志
+		sickLog := &models.PigSickLog{
+			PigBatchID:        batchID,
+			PenID:             penID,
+			ChangeCount:       -quantity, // 康复病猪，ChangeCount 为负数
+			Reason:            models.SickPigReasonTypeRecovery,
+			TreatmentLocation: treatmentLocation,
+			Remarks:           remarks,
+			OperatorID:        operatorID,
+			HappenedAt:        happenedAt,
+		}
+
+		if err := s.sickSvc.ProcessSickPigLog(tx, sickLog); err != nil {
+			return fmt.Errorf("处理病猪康复日志失败: %w", err)
+		}
+
+		return nil
+	})
+
+	if err != nil {
+		return fmt.Errorf("记录病猪康复事件失败: %w", err)
+	}
+
+	return nil
 }
 
 // RecordSickPigDeath 记录病猪死亡事件。