orders only have 1 price

Signed-off-by: Nico Schottelius <nico@nico-notebook.schottelius.org>

uncloud_pay/migrations/0005_auto_20200808_1954.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.1 on 2020-08-08 19:54
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('uncloud_pay', '0004_remove_order_one_time_price'),
+    ]
+
+    operations = [
+        migrations.RenameField(
+            model_name='order',
+            old_name='recurring_price',
+            new_name='price',
+        ),
+    ]

uncloud_pay/models.py

@@ -301,12 +301,7 @@ class Order(models.Model):
     recurring_period = models.IntegerField(choices = RecurringPeriod.choices,
                                            default = RecurringPeriod.PER_30D)
 
-    one_time_price = models.DecimalField(default=0.0,
+    price = models.DecimalField(default=0.0,
-            max_digits=AMOUNT_MAX_DIGITS,
-            decimal_places=AMOUNT_DECIMALS,
-            validators=[MinValueValidator(0)])
-
-    recurring_price = models.DecimalField(default=0.0,
                                 max_digits=AMOUNT_MAX_DIGITS,
                                 decimal_places=AMOUNT_DECIMALS,
                                 validators=[MinValueValidator(0)])
@@ -402,6 +397,10 @@ class Bill(models.Model):
     def __str__(self):
         return f"Bill {self.owner}-{self.id}"
 
+    @property
+    def sum(self):
+        pass
+
 
     @classmethod
     def create_next_bill_for_user(cls, user):
@@ -421,12 +420,20 @@ class Bill(models.Model):
 
         ending_date = end_of_month(starting_date)
 
+        bill = cls()
+
         for order in all_orders:
             # check if order needs to be billed
             # check if order has previous billing record
 
+            # one time orders
+            if not order.is_recurring:
                 pass
 
+            pass
+
+        return bill
+
     @classmethod
     def create_all_bills(cls):
         for owner in get_user_model().objects.all():
@@ -511,6 +518,8 @@ class BillRecord(models.Model):
     # How many times the order has been used in this record
     quantity = models.DecimalField(max_digits=19, decimal_places=10)
 
+    # quantity can actually be derived from starting/ending date
+
     # The timeframe the bill record is for can (and probably often will) differ
     # from the bill time
 
@@ -518,6 +527,21 @@ class BillRecord(models.Model):
     starting_date = models.DateTimeField()
     ending_date = models.DateTimeField()
 
+    def quantity2(self):
+        if self.order.recurring_period == RecurringPeriod.ONE_TIME:
+            return 1
+
+        record_delta = self.ending_date - self.starting_date
+
+        return record_delta.total_seconds()/self.order.recurring_period
+
+
+    def sum(self):
+        if self.order.recurring_period == RecurringPeriod.ONE_TIME:
+            return 1
+
+        return self.quantity * 1
+
     def __str__(self):
         return f"{self.bill}: {self.quantity} x {self.order}"