备货计划，预测和历史销量图表

src/Service/Interfaces/DatacenterNew/StockPlanServiceInterface.php

@@ -43,5 +43,20 @@ interface StockPlanServiceInterface
      */
     public function exportProductEstimateSale(array $params);
 
+    /**
+     * 获取月度历史销量
+     * @param array $params eg: ['product_id'=>123,'product_child_id'=>1236,'start_month'=>'2023-01','end_month'=>'2023-08']
+     * @return array eg: {"2023-01": "34232","2023-02": "23432"}
+     * @author chentianyu
+     */
+    public function getMonthHistorySale(array $params);
+
+    /**获取月度预测销量
+     * @param array $params eg: ['product_id'=>123,'start_month'=>'2023-01','end_month'=>'2023-08']
+     * @return array eg: {"2023-01": "34232","2023-02": "23432"}
+     * @author chentianyu
+     */
+    public function getMonthEstimateSale(array $params);
+
 
 }
\ No newline at end of file