SimulationTool: getNextAlertInventoryDate can look for the lowest invetory...

SimulationTool: getNextAlertInventoryDate can look for the lowest invetory inferior to the reference quantity

product/ERP5/bootstrap/erp5_core/ToolComponentTemplateItem/portal_components/tool.erp5.SimulationTool.py

@@ -2017,6 +2017,7 @@ class SimulationTool(BaseTool):
                      range='min', # pylint: disable=redefined-builtin
                      initial_inventory_kw=None,
                      inventory_list_kw=None,
+                     look_for_minimal=False,
                      **kw):
     """
     Give the next date where the quantity is lower than the
@@ -2031,6 +2032,8 @@ class SimulationTool(BaseTool):
 
     inventory_list_kw - additional parameters for looking at next movements
                         (exemple: use omit_output)
+
+    look_for_minimal - Return the date when the inventory is the lowest
     """
     result = None
     # First look at current inventory, we might have already an inventory
@@ -2055,7 +2058,7 @@ class SimulationTool(BaseTool):
     inventory_method = getattr(self, "get%sInventory" % simulation_period)
     initial_inventory = inventory_method(at_date=from_date,
                          **getAugmentedInventoryKeyword(initial_inventory_kw))
-    if checkQuantity(initial_inventory):
+    if checkQuantity(initial_inventory) and not look_for_minimal:
       result = from_date
     else:
       inventory_list_method = getattr(self,
@@ -2071,7 +2074,11 @@ class SimulationTool(BaseTool):
           total_inventory += inventory['inventory']
           if checkQuantity(total_inventory):
             result = inventory['date']
-            break
+            if look_for_minimal:
+              reference_quantity = total_inventory
+              checkQuantity = getCheckQuantityMethod()
+            else:
+              break
     return result
 
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