builder: Add generateMovementListForStockOptimisationFromSupplyDefinition

buidler: Add tmp fix/workaround on movement order

builder: Use periodicity to determinate start date

builder mixin: Take into account supply date range before create movement

builder: Hackish immediate reindex of order to work for parallel build

builder: use dedicated script to evaluate min stock

builder: autoPlan only if possible

builder: Reference of order line is reference of resource line

builder: include order delay and effective date

builder: fixup add missing part for effective date

builder: Tweak and fix supply builder

builder: Fixup supply builder

builder: immediate reindex delivery on creation

builder: use _edit on delivery to only reindex modification

builder: Supply builder work with period

builder: Supply builder improved

builder: use flow unit for min stock calculation

builder:  Supply Builder Fix future inventory for parts not activated yet

builder: Supply builder do not create movement for resources that won't be consumed in the future

bt5/erp5_base/MixinTemplateItem/portal_components/mixin.erp5.BuilderMixin.py

@@ -30,6 +30,7 @@
 from AccessControl import ClassSecurityInfo
 from Products.ERP5Type.Globals import InitializeClass
 from Products.ERP5Type import Permissions, PropertySheet
+from Products.ERP5Type.DateUtils import addToDate
 from Products.ERP5Type.XMLObject import XMLObject
 from Products.ERP5Type.Core.Predicate import Predicate
 from Products.ERP5.Document.Amount import Amount
@@ -40,6 +41,8 @@ from Products.ERP5.ExplanationCache import _getExplanationCache
 from DateTime import DateTime
 from Acquisition import aq_parent, aq_inner
 
+from math import ceil
+
 class CollectError(Exception): pass
 class MatrixError(Exception): pass
 class DuplicatedPropertyDictKeysError(Exception): pass
@@ -290,6 +293,234 @@ class BuilderMixin(XMLObject, Amount, Predicate):
               break
     return movement_list
 
+  def generateMovementListForStockOptimisationFromSupplyDefinition(
+      self, supply,
+      from_date=None,
+      group_by_node=1, allow_intermediate_negative_stock=True,
+      **kw):
+    from Products.ERP5Type.Document import newTempMovement
+    portal = self.getPortalObject()
+    from_date = DateTime().earliestTime()
+
+    # Initiate Conditions taken from Yusei T. Original Script
+    # XXX to be cleaned
+    min_inventory = supply.getMinStock()
+    resource_value = supply.getResourceValue()
+    default_quantity_unit_value = resource_value.getDefaultQuantityUnitValue()
+    order_quantity_unit_value = supply.getOrderQuantityUnitValue()
+    flow_quantity_unit_value = supply.getFlowQuantityUnitValue()
+    time_quantity_unit_value = supply.getTimeQuantityUnitValue()
+    time_second_ratio = resource_value.getQuantityUnitDefinitionRatio(portal.portal_categories.quantity_unit.time.second)
+    min_delay = supply.getMinDelay()
+    max_delay = supply.getMaxDelay()
+    min_order_delay = supply.getMinOrderDelay()
+    max_order_delay = supply.getMaxOrderDelay()
+    min_order = supply.getMinOrderQuantity()
+    max_order = supply.getMaxOrderQuantity()
+
+    # Initiate conversions
+    # XXX To be cleaned
+    min_delay_second = 0
+    max_delay_second = 0
+    min_order_delay_second = 0
+    max_order_delay_second = 0
+
+    min_order_in_default_quantity_unit = 0
+    max_order_in_default_quantity_unit = float('inf')
+    default_quantity_unit_relative_url = default_quantity_unit_value.getCategoryRelativeUrl()
+
+    if time_quantity_unit_value is not None:
+      time_second_conversion_ratio = resource_value.getQuantityUnitDefinitionRatio(time_quantity_unit_value) / time_second_ratio
+
+      if min_delay:
+        min_delay_second = min_delay * time_second_conversion_ratio
+      if max_delay:
+        max_delay_second = max_delay * time_second_conversion_ratio
+      if min_order_delay:
+        min_order_delay_second = min_order_delay * time_second_conversion_ratio
+      if max_delay:
+        max_order_delay_second = max_order_delay * time_second_conversion_ratio
+
+    if order_quantity_unit_value is not None:
+      order_quantity_unit_relative_url = order_quantity_unit_value.getCategoryRelativeUrl()
+      order_quantity_unit_default_quantity_unit_conversion_ratio = resource_value.convertQuantity(1, order_quantity_unit_relative_url, default_quantity_unit_relative_url)
+      if min_order:
+        min_order_in_default_quantity_unit = min_order * order_quantity_unit_default_quantity_unit_conversion_ratio
+      if max_order:
+        max_order_in_default_quantity_unit = max_order * order_quantity_unit_default_quantity_unit_conversion_ratio
+      default_quantity_unit_order_quantity_unit_conversion_ratio = 1 / order_quantity_unit_default_quantity_unit_conversion_ratio
+    else:
+      default_quantity_unit_order_quantity_unit_conversion_ratio = 1
+
+    if flow_quantity_unit_value is not None:
+      flow_quantity_unit_relative_url = flow_quantity_unit_value.getCategoryRelativeUrl()
+      flow_quantity_unit_default_quantity_unit_conversion_ratio = resource_value.convertQuantity(1, flow_quantity_unit_relative_url, default_quantity_unit_relative_url)
+      default_quantity_unit_flow_quantity_unit_conversion_ratio = 1 / flow_quantity_unit_default_quantity_unit_conversion_ratio
+    else:
+      default_quantity_unit_flow_quantity_unit_conversion_ratio = 1
+
+    def getPreviousValidDate(date):
+      # We suppose the system has not been configured to handled per hour commands
+      return DateTime(supply.getNextPeriodicalDate(
+        date.earliestTime(),
+        # Hackish and dangerous
+        next_start_date=date.earliestTime(),
+        factor=-1)).earliestTime()
+
+    # Function to define the minimal quantity to be ordered
+    def minimalQuantity(quantity, date):
+      # Initiate variables to match original script from Yusei T.
+      # XXX To be cleaned
+      conversion_ratio = default_quantity_unit_order_quantity_unit_conversion_ratio
+
+      delay_second = max_delay_second or min_delay_second or 0
+      limit_date = getPreviousValidDate(date)
+      start_date = getPreviousValidDate(
+        addToDate(limit_date, second=-delay_second)
+      )
+      stop_date = addToDate(start_date, second=delay_second).earliestTime()
+      order_delay_second = max_order_delay_second or min_order_delay_second or 0
+      effective_date = addToDate(start_date, second=-order_delay_second)
+
+      order_quantity = ceil(quantity * conversion_ratio)
+      quantity = order_quantity / conversion_ratio
+
+      return order_quantity, order_quantity_unit_value, effective_date, start_date, stop_date, quantity
+
+    resource_portal_type = resource_value.getPortalType()
+    def newMovement(effective_date, start_date, stop_date, quantity, quantity_unit):
+      # Create temporary movement
+      # Do not handle variation and Item for now
+      movement = newTempMovement(portal, "temp")
+      movement.edit(
+          resource_value=resource_value,
+          destination_value=supply.getDestinationValue(),
+          destination_section_value=supply.getDestinationSectionValue(),
+          source_value=supply.getSourceValue(),
+          source_section_value=supply.getSourceSectionValue(),
+          resource_portal_type=resource_portal_type,
+          quantity_unit_value=quantity_unit,
+          quantity=quantity,
+          effective_date=effective_date,
+          start_date=start_date,
+          stop_date=stop_date,
+          reference=resource_value.getReference(),
+          )
+      return movement
+
+    movement_list = []
+
+    # Remove the Past
+    previous_movement_list = portal.portal_catalog(
+      portal_type=self.getDeliveryLinePortalType(),
+      simulation_state="auto_planned",
+      strict_resource_uid=supply.getResourceUid(),
+      #strict_source_uid=supply.getSourceUid(),
+      #strict_source_section_uid=supply.getSourceSectionUid(),
+      #strict_destination_uid=supply.getDestinationUid(),
+      #strict_destination_section_uid=supply.getDestinationSectionUid(),
+      parent_delivery_start_date={'query': (supply.getStartDateRangeMin(), supply.getStartDateRangeMax()),
+                                  'range':"minmax"},
+    )
+    #previous_movement_list= []
+    for brain in previous_movement_list:
+      brain.getObject().setQuantity(0)
+
+    # Prepare history list to work with
+    history_list = resource_value.Resource_getInventoryHistoryList(
+      from_date=from_date,
+      node_uid=supply.getDestinationUid()
+      # XXX This should be bound to a stard and stop date
+      )
+    #self.log("history_list len: %s" % len(history_list))
+
+    # We only consider resources that have consumption movements in
+    # the future, for those who don't we do not build anything.
+    has_consumption_movement = False
+    for date, inventory, quantity, portal_type in history_list:
+      if quantity < 0:
+        has_consumption_movement = True
+        break
+
+    if not has_consumption_movement:
+      return []
+
+    # evaluate future inventory at date
+    future_inventory_to_date = portal.portal_simulation.getFutureInventory(
+      to_date=from_date,
+      resource_uid=resource_value.getUid(),
+      node_uid=supply.getDestinationUid(),
+      )
+
+    # Prepare period_list
+    limit_date = getPreviousValidDate(from_date)
+    limit_date_list = []
+    last_date = getPreviousValidDate(history_list[-1][0])
+    while limit_date <= last_date:
+      limit_date_list.append(limit_date)
+      limit_date = DateTime(supply.getNextPeriodicalDate(
+        limit_date,
+        # Hackish and dangerous
+        next_start_date=limit_date)).earliestTime()
+
+    #self.log(limit_date_list)
+    # Create a movement per period
+    for period_start_date in limit_date_list:
+
+      # Prepare history list of the current period
+      next_period_start_date = DateTime(supply.getNextPeriodicalDate(
+        period_start_date,
+        next_start_date=period_start_date)).earliestTime()
+      period_history_list = []
+
+      while history_list and history_list[0][0] < next_period_start_date:
+        period_history_list.append(history_list.pop(0))
+
+      # Using period history list calculate min stock
+      min_inventory = self.Base_evaluateMinInventoryForSupplyAtDate(
+        supply=supply,
+        history_list=period_history_list,
+        at_date=period_start_date,
+        conversion_ratio=default_quantity_unit_flow_quantity_unit_conversion_ratio,
+        )
+      quantity = 0
+
+      if future_inventory_to_date < min_inventory: # SKU
+         quantity = min_inventory - future_inventory_to_date
+
+      ordered_quantity, ordered_unit, effective_date, start_date, delivery_date, quantity = minimalQuantity(quantity, period_start_date)
+      # XXX CLN This is very naive, it has to be optimized
+      if start_date > supply.getStartDateRangeMax():
+        break
+      if start_date < supply.getStartDateRangeMin():
+        # As we are going to need to go further in time to check if new Movements are needed
+        # we need to keep inventory correct
+        future_inventory_to_date += quantity
+        for date, total_inventory, quantity, portal_type in period_history_list:
+          future_inventory_to_date += quantity
+        continue
+
+      #self.log("at %s min: %s, inventory:%s, quantity:%s" % (period_start_date, min_inventory, future_inventory_to_date, quantity))
+      if quantity != 0:
+        self.log("Week %s Will order %s at %s for period %s" % (delivery_date.week(), quantity, delivery_date, period_start_date))
+        movement_list.append(
+          newMovement(
+            effective_date,
+            start_date,
+            delivery_date,
+            ordered_quantity,
+            ordered_unit
+          )
+        )
+
+      # calculate inventory at the end of the period
+      future_inventory_to_date += quantity
+      for date, total_inventory, quantity, portal_type in period_history_list:
+        future_inventory_to_date += quantity
+
+    #return []
+    return movement_list
+
   def _searchMovementList(self, **kw):
     """
       Returns a list of simulation movements (or something similar to
@@ -442,10 +673,12 @@ class BuilderMixin(XMLObject, Amount, Predicate):
       Create a new delivery in case where a builder may not update
       an existing one.
     """
-    return delivery_module.newContent(
+    delivery = delivery_module.newContent(
       portal_type=self.getDeliveryPortalType(),
-      created_by_builder=1,
-      activate_kw=activate_kw)
+      created_by_builder=1)
+    if self.getPortalObject().portal_workflow.isTransitionPossible(delivery, "auto_plan"):
+      delivery.autoPlan()
+    return delivery
 
   def _processDeliveryGroup(self, delivery_module, movement_group_node,
                             collect_order_list, movement_group_node_list=None,
@@ -504,20 +737,32 @@ class BuilderMixin(XMLObject, Amount, Predicate):
       if force_update and delivery is None and len(delivery_to_update_list):
         delivery = delivery_to_update_list[0]
 
+      created = False
       if delivery is None:
         if not self.isDeliveryCreatable():
           raise SelectMethodError('No updatable delivery found with %s for %s' \
                   % (self.getPath(), movement_group_node_list))
 
+        # if total quantity is 0 no need to create anything
+        total_quantity = 0
+        for movement in movement_group_node.getMovementList():
+          total_quantity += movement.getQuantity()
+        if total_quantity == 0:
+          return delivery_list
+
         delivery = self._createDelivery(delivery_module,
                                         movement_group_node.getMovementList(),
                                         activate_kw)
+        created = True
       # Put properties on delivery
       self._setUpdated(delivery, 'delivery')
       if property_dict:
         property_dict.setdefault('edit_order', ('stop_date', 'start_date'))
         delivery._edit(reindex_object=1, **property_dict)
 
+      if created:
+        delivery.immediateReindexObject()
+
       # Then, create delivery line
       for grouped_node in movement_group_node.getGroupList():
         self._processDeliveryLineGroup(