rancher quota statistics including livestock allocations & incentive plan assignments

apps/herd/services.py

@@ -1,3 +0,0 @@
-# Your services go here
-
-

apps/herd/services/services.py

@@ -51,23 +51,60 @@ def rancher_quota_weight(rancher, inventory_entry: InventoryEntry):
     }
 
     quota: Quota = inventory_entry.distribution.quota
-    allocations = quota.livestock_allocations.all()
+    allocations = quota.livestock_allocations.all()  # list of quota live stock allocations
 
     livestock_counts = get_rancher_statistics(rancher)
 
     total_weight = 0
-    details = {}
+    alloc_details = {}
+    plan_details = {}
+    result_list = []
 
-    for alloc in allocations:
-        animal_type = alloc.livestock_type.name
-        per_head = alloc.quantity_kg
-        count = livestock_counts.get(live_stock_meta.get(animal_type), 0)
+    # list of quota allocations, get allocations weight on any animal type
+    for alloc in allocations:  # noqa
+        if alloc.livestock_type:
+            animal_type = alloc.livestock_type.name
+            per_head = alloc.quantity_kg
+            count = livestock_counts.get(live_stock_meta.get(animal_type), 0)
 
-        weight = per_head * count
-        details[animal_type] = {"weight": weight, "type": alloc.livestock_type.weight_type}
-        total_weight += weight
+            weight = per_head * count
+            alloc_details[animal_type] = {"weight": weight, "type": alloc.livestock_type.weight_type}
+            total_weight += weight
 
-    return {
-        "total": total_weight,
-        "by_type": details
-    }
+    # list of quota incentive plans, get plans weight on any animal type
+    incentive_plans = quota.incentive_assignments.all()
+    for plan in incentive_plans:  # noqa
+        if plan.livestock_type:
+            animal_type = plan.livestock_type.name
+            per_head = plan.quantity_kg
+            count = livestock_counts.get(live_stock_meta.get(animal_type), 0)
+
+            weight = per_head * count
+            plan_details[animal_type] = {"weight": weight, "type": plan.livestock_type.weight_type}
+            total_weight += weight
+
+    # summation of incentive plans & livestock allocations animal types weight
+    result_details = {"total": total_weight, 'by_type': {}}
+    all_keys = set(alloc_details.keys()) | set(plan_details.keys())  # get all keys from plan & allocations data
+
+    for key in all_keys:
+        alloc_weight = alloc_details.get(key, {}).get("weight", 0)  # total weight of quota livestock allocations data
+        plan_weight = plan_details.get(key, {}).get("weight", 0)  # total weight of quota incentive plan data
+
+        # get animal type (Heavy, Light)
+        animal_type = alloc_details.get(
+            key, {}
+        ).get("type") or plan_details.get(
+            key, {}
+        ).get("type")
+
+        # final result, total weights
+        result_list.append({
+            "name": key,
+            "weight": alloc_weight + plan_weight,
+            "type": animal_type
+        })
+
+    result_details['by_type'] = result_list
+
+    return result_details

apps/product/models.py

@@ -457,10 +457,31 @@ class QuotaIncentiveAssignment(BaseModel):
     )
     quantity_kg = models.PositiveBigIntegerField(default=0)
 
+    def calculate_heavy_value(self):
+        """ calculate total livestock heavy value of incentive plans """
+        heavy_weight = QuotaIncentiveAssignment.objects.filter(
+            quota=self.quota, livestock_type__weight_type='H'
+        ).aggregate(total=models.Sum('quantity_kg'))['total'] or 0
+
+        self.heavy_value = heavy_weight
+        self.save()
+
+    def calculate_light_value(self):
+        """ calculate total livestock light value of incentive plans """
+
+        heavy_weight = QuotaIncentiveAssignment.objects.filter(
+            quota=self.quota, livestock_type__weight_type='L'
+        ).aggregate(total=models.Sum('quantity_kg'))['total'] or 0
+
+        self.heavy_value = heavy_weight
+        self.save()
+
     def __str__(self):
         return f"Quota ({self.quota.id}) for {self.incentive_plan.name}"
 
     def save(self, *args, **kwargs):
+        self.calculate_heavy_value()
+        self.calculate_heavy_value()
         return super(QuotaIncentiveAssignment, self).save(*args, **kwargs)
 
 

apps/product/services/services.py

@@ -41,7 +41,10 @@ def quota_incentive_plans_info(quota: Quota) -> typing.Any:
         incentive_plans_list = [{
             'name': plan.incentive_plan.name,
             'heavy_value': plan.heavy_value,
-            'light_value': plan.light_value
+            'light_value': plan.light_value,
+            'livestock_type': plan.livestock_type.name if plan.livestock_type else "",
+            'livestock_weight_type': plan.livestock_type.weight_type if plan.livestock_type else "",
+            'quantity_kg': plan.quantity_kg
         } for plan in incentive_plans]
 
         return incentive_plans_list