billing: Show appropriate message when not on a paid plan.

corporate/tests/test_stripe.py

@@ -21,7 +21,8 @@ from django.utils.timezone import now as timezone_now
 import stripe
 
 from zerver.lib.actions import do_deactivate_user, do_create_user, \
-    do_activate_user, do_reactivate_user, do_deactivate_realm
+    do_activate_user, do_reactivate_user, do_deactivate_realm, \
+    do_reactivate_realm
 from zerver.lib.test_classes import ZulipTestCase
 from zerver.lib.test_helpers import reset_emails_in_zulip_realm
 from zerver.lib.timestamp import timestamp_to_datetime, datetime_to_timestamp
@@ -984,7 +985,6 @@ class StripeTest(StripeTestCase):
     @patch("corporate.lib.stripe.billing_logger.info")
     def test_deactivate_realm(self, mock_: Mock) -> None:
         user = self.example_user("hamlet")
-        self.login_user(user)
         with patch("corporate.lib.stripe.timezone_now", return_value=self.now):
             self.local_upgrade(self.seat_count, True, CustomerPlan.ANNUAL, 'token')
 
@@ -1004,11 +1004,18 @@ class StripeTest(StripeTestCase):
         do_deactivate_realm(get_realm("zulip"))
 
         plan.refresh_from_db()
+        self.assertTrue(get_realm('zulip').deactivated)
         self.assertEqual(get_realm('zulip').plan_type, Realm.LIMITED)
         self.assertEqual(plan.status, CustomerPlan.ENDED)
         self.assertEqual(plan.invoiced_through, last_ledger_entry)
         self.assertIsNone(plan.next_invoice_date)
 
+        do_reactivate_realm(get_realm('zulip'))
+
+        self.login_user(user)
+        response = self.client_get("/billing/")
+        self.assert_in_success_response(["Your organization is on the <b>Zulip Free</b>"], response)
+
         # The extra users added in the final month are not charged
         with patch("corporate.lib.stripe.invoice_plan") as mocked:
             invoice_plans_as_needed(self.next_month)

corporate/views.py

@@ -159,15 +159,11 @@ def billing_home(request: HttpRequest) -> HttpResponse:
     if not user.is_realm_admin and not user.is_billing_admin:
         context = {'admin_access': False}  # type: Dict[str, Any]
         return render(request, 'corporate/billing.html', context=context)
-    context = {'admin_access': True}
 
-    plan_name = "Zulip Free"
+    context = {
-    licenses = 0
+        'admin_access': True,
-    licenses_used = 0
+        'has_active_plan': False,
-    renewal_date = ''
+    }
-    renewal_cents = 0
-    payment_method = ''
-    charge_automatically = False
 
     plan = get_current_plan_by_customer(customer)
     if plan is not None:
@@ -192,6 +188,7 @@ def billing_home(request: HttpRequest) -> HttpResponse:
 
             context.update({
                 'plan_name': plan_name,
+                'has_active_plan': True,
                 'licenses': licenses,
                 'licenses_used': licenses_used,
                 'renewal_date': renewal_date,
@@ -201,6 +198,7 @@ def billing_home(request: HttpRequest) -> HttpResponse:
                 'publishable_key': STRIPE_PUBLISHABLE_KEY,
                 'stripe_email': stripe_customer.email,
             })
+
     return render(request, 'corporate/billing.html', context=context)
 
 @require_billing_access

templates/corporate/billing.html

@@ -19,7 +19,7 @@
             <div class="main">
                 <div class="alert alert-danger" id="error-message-box"></div>
                 <h1>{{ _("Billing") }}</h1>
-                {% if admin_access %}
+                {% if admin_access and has_active_plan %}
                 <ul class="nav nav-tabs" id="billing-tabs">
                     <li class="active"><a data-toggle="tab" href="#overview">Overview</a></li>
                     <li><a data-toggle="tab" href="#payment-method">Payment Method</a></li>
@@ -69,14 +69,31 @@
                     <div class="tab-pane" id="loading">
                     </div>
                 </div>
-
                 <div class="support-link">
                     <p>
                         Contact <a href="mailto:support@zulipchat.com">support@zulipchat.com</a>
                         for billing history or to make changes to your subscription.
                     </p>
                 </div>
-
+                {% elif admin_access and not has_active_plan %}
+                <div class="tab-content">
+                    <center>
+                        <p>
+                            <h2>Your organization is on the <b>Zulip Free</b> plan.</h2>
+                            <a href="/upgrade">
+                                <button type="submit" class="button green">Upgrade to Standard</button>
+                            </a>
+                            <a href="/plans">
+                                <button type="submit">View all plans</button>
+                            </a>
+                        </p>
+                    </center>
+                </div>
+                <div class="support-link">
+                    <p>
+                        Contact <a href="mailto:support@zulipchat.com">support@zulipchat.com</a> for billing history.
+                    </p>
+                </div>
                 {% else %}
                 <p>
                     You must be an organization administrator or a billing administrator to view this page.