purchase_order_product_recommendation_supermarket: add delivered data from previous period

purchase_order_product_recommendation_supermarket/wizards/purchase_order_recommendation.py

@@ -158,6 +158,37 @@ class PurchaseOrderRecommendationSupermarketWizard(models.TransientModel):
         if len(found_scrapped):
             res["units_scrapped"] = found_scrapped[0]["qty_done"]
 
+        days = self._get_total_days()
+        prev_date_end = self.date_begin - timedelta(days=1)
+        prev_date_begin = prev_date_end - timedelta(days=days)
+        domain = self.with_context(
+            {
+                "period_date_begin": prev_date_begin,
+                "period_date_end": prev_date_end,
+            }
+        )._get_move_line_domain(product_id, src="internal", dst="customer")
+        found_previous_period = self.env["stock.move.line"].read_group(
+            domain, ["product_id", "qty_done"], ["product_id"]
+        )
+        if len(found_previous_period):
+            res["units_delivered_prev"] = found_previous_period[0]["qty_done"]
+            if self.ignore_zero_stock_days:
+                days_with_stock = days - self.with_context(
+                    {
+                        "period_date_begin": prev_date_begin,
+                        "period_date_end": prev_date_end,
+                    }
+                )._get_days_out_of_stock(product_id)
+                print(days_with_stock)
+                res["units_avg_delivered_prev"] = (
+                    res["units_delivered_prev"] / days_with_stock
+                    if days_with_stock != 0
+                    else 1
+                )
+            else:
+                res["units_avg_delivered_prev"] = (
+                    found_previous_period[0]["qty_done"] / days if days != 0 else 1
+                )
         return res
 
     def _get_days_out_of_stock(self, product):
@@ -166,8 +197,8 @@ class PurchaseOrderRecommendationSupermarketWizard(models.TransientModel):
         where the given product had zero or negative stock (qty_available).
         """
         days_out_of_stock = 0
-        date_from = self.date_begin
+        date_from = self.env.context.get("period_date_begin", self.date_begin)
-        date_to = self.date_end
+        date_to = self.env.context.get("period_date_end", self.date_end)
         if not date_from or not date_to:
             return 0
         # Loop through each day in the range
@@ -237,6 +268,13 @@ class PurchaseOrderRecommendationLine(models.TransientModel):
         compute="_compute_stock_duration",
         readonly=True,
     )
+    units_delivered_prev = fields.Float(
+        readonly=True,
+    )
+    units_avg_delivered_prev = fields.Float(
+        digits="Product Unit of Measure",
+        readonly=True,
+    )
 
     @api.depends("units_included", "product_id")
     def _compute_subtotal_amount(self):

purchase_order_product_recommendation_supermarket/wizards/purchase_order_recommendation.xml

@@ -32,6 +32,8 @@
                 <field name="units_scrapped" string="Qty scrapped" optional="hide" />
                 <field name="stock_duration" string="Stock Duration" optional="hide" />
                 <field name="days_without_stock" optional="hide" />
+                <field name="units_delivered_prev" string="Prev Period" optional="hide" />
+                <field name="units_avg_delivered_prev" string="Avg Prev Period" optional="hide" />
                 <field name="packaging_id" optional="show" />
                 <field name="packaging_contained_qty" string="Packaging Contained Qty" optional="hide" />
                 <field name="subtotal_amount" string="Subtotal Amount" optional="hide" />