[FIX] stock: forecasted take the reservation in account

Add reservation information in the forecasted report.
Also this information is used by the forecasted information in
stock move.

closes odoo/odoo#57814

X-original-commit: 87b16dab35c2326220d5bbd51bb7f07e876352d1
Signed-off-by: Arnold Moyaux <amoyaux@users.noreply.github.com>
Signed-off-by: Rémy Voet <ryv-odoo@users.noreply.github.com>

addons/stock/report/report_stock_forecasted.py

@@ -109,7 +109,7 @@ class ReplenishmentReport(models.AbstractModel):
         res['lines'] = self._get_report_lines(product_template_ids, product_variant_ids, wh_location_ids)
         return res
 
-    def _prepare_report_line(self, quantity, move_out=None, move_in=None, replenishment_filled=True, product=False):
+    def _prepare_report_line(self, quantity, move_out=None, move_in=None, replenishment_filled=True, product=False, reservation=False):
         timezone = self._context.get('tz')
         product = product or (move_out.product_id if move_out else move_in.product_id)
         is_late = move_out.date < move_in.date if (move_out and move_in) else False
@@ -128,6 +128,7 @@ class ReplenishmentReport(models.AbstractModel):
             'quantity': quantity,
             'move_out': move_out,
             'move_in': move_in,
+            'reservation': reservation,
         }
 
     def _get_report_lines(self, product_template_ids, product_variant_ids, wh_location_ids):
@@ -146,10 +147,21 @@ class ReplenishmentReport(models.AbstractModel):
 
         lines = []
         for product in (ins | outs).product_id:
+            for out in outs_per_product[product.id]:
+                if out.state not in ('partially_available', 'assigned'):
+                    continue
+                current = currents[out.product_id.id]
+                reserved = out.product_uom._compute_quantity(out.reserved_availability, product.uom_id)
+                currents[product.id] -= reserved
+                lines.append(self._prepare_report_line(reserved, move_out=out, reservation=True))
+
             for out in outs_per_product[product.id]:
                 # Reconcile with the current stock.
                 current = currents[out.product_id.id]
-                demand = out.product_qty
+                reserved = 0.0
+                if out.state in ('partially_available', 'assigned'):
+                    reserved = out.product_uom._compute_quantity(out.reserved_availability, product.uom_id)
+                demand = out.product_qty - reserved
                 taken_from_stock = min(demand, current)
                 if not float_is_zero(taken_from_stock, precision_rounding=product.uom_id.rounding):
                     currents[product.id] -= taken_from_stock

addons/stock/report/report_stock_forecasted.xml

@@ -117,6 +117,9 @@
                                     class="font-weight-bold" view-type="form"
                                     t-att-res-model="line['document_in']._name"
                                     t-att-res-id="line['document_in'].id"/>
+                                <t t-elif="line['reservation']">
+                                    Reserved from stock
+                                </t>
                                 <t t-elif="line['replenishment_filled']">
                                     <t t-if="line['document_out']">Inventory On Hand</t>
                                     <t t-else="">Free Stock</t>