Complete implementation of fetch_stripe_bills

hosting/management/commands/fetch_stripe_bills.py

@@ -1,9 +1,13 @@
+import logging
+
 from django.core.management.base import BaseCommand
 
-from hosting.models import UserCardDetail
+from hosting.models import MonthlyHostingBill
 from membership.models import CustomUser
 from utils.stripe_utils import StripeUtils
 
+logger = logging.getLogger(__name__)
+
 
 class Command(BaseCommand):
     help = '''Fetches invoices from Stripe and creates bills for a given 
@@ -18,11 +22,32 @@ class Command(BaseCommand):
                 stripe_utils = StripeUtils()
                 user = CustomUser.objects.get(email=email)
                 if hasattr(user, 'stripecustomer'):
-                    self.stdout.write(self.style.SUCCESS('Found %s. Fetching bills for him.' % email))
+                    self.stdout.write(self.style.SUCCESS(
-                    stripe_utils.get_all_invoices(
+                        'Found %s. Fetching bills for him.' % email))
-                        user.stripecustomer.stripe_id
+                    mhb = MonthlyHostingBill.objects.last(
+                        customer=user.stripecustomer
+                    )
+                    created_gt = {}
+                    if mhb is not None:
+                        # fetch only invoices which is created after
+                        # mhb.created, because we already have invoices till
+                        # this date
+                        created_gt = {'gt': mhb.created}
+
+                    all_invoices_response = stripe_utils.get_all_invoices(
+                        user.stripecustomer.stripe_id,
+                        created=created_gt
+                    )
+                    all_invoices = all_invoices_response['response_object']
+                    logger.debug(
+                        "Obtained {} invoices".format(len(all_invoices))
+                    )
+                    for invoice in all_invoices:
+                        MonthlyHostingBill.create(
+                            invoice, stripe_customer=user.stripecustomer
                         )
                 else:
-                    self.stdout.write(self.style.SUCCESS('Customer email %s does not have a stripe customer.' % email))
+                    self.stdout.write(self.style.SUCCESS(
+                        'Customer email %s does not have a stripe customer.' % email))
         except Exception as e:
             print(" *** Error occurred. Details {}".format(str(e)))

hosting/models.py

@@ -235,16 +235,24 @@ class HostingBill(AssignPermissionsMixin, models.Model):
 class MonthlyHostingBill(AssignPermissionsMixin, models.Model):
     customer = models.ForeignKey(StripeCustomer)
     order = models.ForeignKey(HostingOrder)
+    created = models.DateTimeField(help_text="When the invoice was created")
     receipt_number = models.CharField(
-        help_text="The receipt number that is generated on Stripe"
+        help_text="The receipt number that is generated on Stripe",
+        max_length=100
     )
     invoice_number = models.CharField(
-        help_text="The invoice number that is generated on Stripe"
+        help_text="The invoice number that is generated on Stripe",
+        max_length=100
     )
-    billing_period = models.CharField(
+    paid_at = models.DateTimeField(help_text="Date on which the bill was paid")
-        help_text="The billing period for which the bill is valid"
+    period_start = models.DateTimeField()
-    )
+    period_end = models.DateTimeField()
-    date_paid = models.DateField(help_text="Date on which the bill was paid")
+    billing_reason = models.CharField(max_length=25)
+    discount = models.PositiveIntegerField()
+    total = models.IntegerField()
+    lines_data_count = models.IntegerField()
+    invoice_id = models.CharField(unique=True, max_length=100)
+    lines_meta_data_csv = models.TextField()
 
     permissions = ('view_monthlyhostingbill',)
 
@@ -253,6 +261,24 @@ class MonthlyHostingBill(AssignPermissionsMixin, models.Model):
             ('view_monthlyhostingbill', 'View Monthly Hosting'),
         )
 
+    @classmethod
+    def create(cls, stripe_customer, **args):
+        instance = cls.objects.create(args)
+        instance.customer = stripe_customer
+        if len(instance.lines_meta_data_csv) > 0:
+            vm_ids = [vm_id.strip() for vm_id in instance.lines_meta_data_csv.split(",")]
+            if len(vm_ids) == 1:
+                instance.order = HostingOrder.objects.get(vm_id=vm_ids[0])
+            else:
+                logger.debug(
+                    "More than one VM_ID"
+                    "for MonthlyHostingBill {}".format(instance.invoice_id)
+                )
+                logger.debug("VM_IDS=".format(','.join(vm_ids)))
+        instance.assign_permissions(stripe_customer.user)
+        instance.save()
+        return instance
+
 
 class VMDetail(models.Model):
     user = models.ForeignKey(CustomUser)

utils/stripe_utils.py

@@ -123,22 +123,41 @@ class StripeUtils(object):
         return card_details
 
     @handleStripeError
-    def get_all_invoices(self, customer_id):
+    def get_all_invoices(self, customer_id, created):
-        invoices = stripe.Invoice.list(limit=100, customer=customer_id)
         return_list = []
-        for invoice in invoices:
+        has_more_invoices = True
+        starting_after = False
+        while has_more_invoices:
+            if starting_after:
+                invoices = stripe.Invoice.list(
+                    limit=10, customer=customer_id, created=created
+                )
+            else:
+                invoices = stripe.Invoice.list(
+                    limit=10, customer=customer_id, created=created,
+                    starting_after=starting_after
+                )
+            has_more_invoices = invoices.has_more
+            for invoice in invoices.data:
                 invoice_details = {
                     'created': invoice.created,
                     'receipt_number': invoice.receipt_number,
                     'invoice_number': invoice.number,
-                'date_paid': invoice.date_paid,
+                    'paid_at': invoice.status_transitions.paid_at if invoice.paid else 0,
                     'period_start': invoice.period_start,
                     'period_end': invoice.period_end,
-                'paid': invoice.paid,
                     'billing_reason': invoice.billing_reason,
                     'discount': invoice.discount.coupon.amount_off if invoice.discount else 0,
-                'total': invoice.total
+                    'total': invoice.total,
+                    # to see how many line items we have in this invoice and
+                    # then later check if we have more than 1
+                    'lines_data_count': len(invoice.lines.data),
+                    'invoice_id': invoice.id,
+                    'lines_meta_data_csv': ','.join(
+                        [line.metadata.VM_ID for line in invoice.lines.data]
+                    )
                 }
+                starting_after = invoice.id
                 return_list.append(invoice_details)
         return return_list