✨ Add order stats

main/api/schema.py

@@ -1,8 +1,18 @@
 import strawberry
 import strawberry_django
 
+from main import models
 from main.api import mutations
-from main.api.types import Order, OrderOrdering, Product, Transaction, TransactionOrdering, User
+from main.api.types import (
+    Order,
+    OrderOrdering,
+    OrderStats,
+    OrderStatsByTime,
+    Product,
+    Transaction,
+    TransactionOrdering,
+    User,
+)
 
 
 @strawberry.type
@@ -13,6 +23,15 @@ class Query:
     order_list: list[Order] = strawberry_django.field(pagination=True, order=OrderOrdering)
     transaction_list: list[Transaction] = strawberry_django.field(pagination=True, order=TransactionOrdering)
 
+    @strawberry.field
+    def order_stats(self) -> OrderStats:
+        return OrderStats(
+            yearly=[OrderStatsByTime(**stat) for stat in models.Order.objects.count_by_year().order_by("period")],
+            monthly=[OrderStatsByTime(**stat) for stat in models.Order.objects.count_by_month().order_by("period")],
+            dayly=[OrderStatsByTime(**stat) for stat in models.Order.objects.count_by_weekday().order_by("period")],
+            hourly=[OrderStatsByTime(**stat) for stat in models.Order.objects.count_by_hour().order_by("period")],
+        )
+
 
 @strawberry.type
 class Mutation:

main/api/types.py

@@ -79,6 +79,20 @@ class OrderLine:
     unit_price: auto
 
 
+@strawberry.type
+class OrderStatsByTime:
+    period: int
+    count: str
+
+
+@strawberry.type
+class OrderStats:
+    yearly: list[OrderStatsByTime]
+    monthly: list[OrderStatsByTime]
+    dayly: list[OrderStatsByTime]
+    hourly: list[OrderStatsByTime]
+
+
 @strawberry_django.ordering.order(models.Transaction)
 class TransactionOrdering:
     created: auto