support: Add button to delete configured fixed next plan.

This will help us modify the configured plan if we need to.

corporate/lib/stripe.py

@@ -571,6 +571,7 @@ class SupportType(Enum):
     update_plan_end_date = 7
     update_required_plan_tier = 8
     configure_fixed_price_plan = 9
+    delete_fixed_price_next_plan = 10
 
 
 class SupportViewRequest(TypedDict, total=False):
@@ -3030,6 +3031,15 @@ class BillingSession(ABC):
                 assert support_request["new_plan_tier"] is not None
                 new_plan_tier = support_request["new_plan_tier"]
                 success_message = self.do_change_plan_to_new_tier(new_plan_tier)
+        elif support_type == SupportType.delete_fixed_price_next_plan:
+            customer = self.get_customer()
+            assert customer is not None
+            fixed_price_offer = CustomerPlanOffer.objects.filter(
+                customer=customer, status=CustomerPlanOffer.CONFIGURED
+            ).first()
+            assert fixed_price_offer is not None
+            fixed_price_offer.delete()
+            success_message = "Fixed price offer deleted"
 
         return success_message
 

corporate/tests/test_stripe.py

@@ -6350,6 +6350,61 @@ class TestRemoteRealmBillingFlow(StripeTestCase, RemoteRealmBillingTestCase):
         ]:
             self.assert_in_response(substring, response)
 
+    @responses.activate
+    @mock_stripe()
+    def test_delete_configured_fixed_price_plan_offer(self, *mocks: Mock) -> None:
+        self.login("iago")
+
+        self.add_mock_response()
+        with time_machine.travel(self.now, tick=False):
+            send_server_data_to_push_bouncer(consider_usage_statistics=False)
+
+        self.assertFalse(CustomerPlanOffer.objects.exists())
+
+        annual_fixed_price = 1200
+        # Configure required_plan_tier and fixed_price.
+        result = self.client_post(
+            "/activity/remote/support",
+            {
+                "remote_realm_id": f"{self.remote_realm.id}",
+                "required_plan_tier": CustomerPlan.TIER_SELF_HOSTED_BASIC,
+            },
+        )
+        self.assert_in_success_response(
+            ["Required plan tier for Zulip Dev set to Zulip Basic."], result
+        )
+
+        result = self.client_post(
+            "/activity/remote/support",
+            {"remote_realm_id": f"{self.remote_realm.id}", "fixed_price": annual_fixed_price},
+        )
+        self.assert_in_success_response(
+            ["Customer can now buy a fixed price Zulip Basic plan."], result
+        )
+        fixed_price_plan_offer = CustomerPlanOffer.objects.filter(
+            status=CustomerPlanOffer.CONFIGURED
+        ).first()
+        assert fixed_price_plan_offer is not None
+        self.assertEqual(fixed_price_plan_offer.tier, CustomerPlanOffer.TIER_SELF_HOSTED_BASIC)
+        self.assertEqual(fixed_price_plan_offer.fixed_price, annual_fixed_price * 100)
+        self.assertEqual(fixed_price_plan_offer.get_plan_status_as_text(), "Configured")
+
+        result = self.client_get("/activity/remote/support", {"q": "example.com"})
+        self.assert_in_success_response(
+            ["Next plan information:", "Zulip Basic", "Configured", "Plan has a fixed price."],
+            result,
+        )
+
+        billing_session = RemoteRealmBillingSession(remote_realm=self.remote_realm)
+        support_request = SupportViewRequest(
+            support_type=SupportType.delete_fixed_price_next_plan,
+        )
+        success_message = billing_session.process_support_view_request(support_request)
+        self.assertEqual(success_message, "Fixed price offer deleted")
+        result = self.client_get("/activity/remote/support", {"q": "example.com"})
+        self.assert_not_in_success_response(["Next plan information:"], result)
+        self.assert_in_success_response(["Fixed price", "Annual amount in dollars"], result)
+
     @responses.activate
     @mock_stripe()
     def test_upgrade_user_to_fixed_price_plan_pay_by_invoice(self, *mocks: Mock) -> None:

corporate/views/support.py

@@ -503,6 +503,7 @@ def remote_servers_support(
     modify_plan: Optional[str] = REQ(
         default=None, str_validator=check_string_in(VALID_MODIFY_PLAN_METHODS)
     ),
+    delete_fixed_price_next_plan: bool = REQ(default=False, json_validator=check_bool),
 ) -> HttpResponse:
     context: Dict[str, Any] = {}
 
@@ -573,6 +574,10 @@ def remote_servers_support(
                 support_type=SupportType.modify_plan,
                 plan_modification=modify_plan,
             )
+        elif delete_fixed_price_next_plan:
+            support_view_request = SupportViewRequest(
+                support_type=SupportType.delete_fixed_price_next_plan,
+            )
         if support_view_request is not None:
             if remote_realm_support_request:
                 try:

templates/corporate/support/next_plan_details.html

@@ -16,3 +16,11 @@
     {% endif %}
 {% endif %}
 <b>Estimated annual revenue</b>: ${{ dollar_amount(plan_data.estimated_next_plan_revenue) }}<br />
+{% if plan_data.next_plan.fixed_price %}
+<form method="POST">
+    {{ csrf_input }}
+    <input type="hidden" name="{{ remote_type }}" value="{{ remote_id }}" />
+    <input type="hidden" name="delete_fixed_price_next_plan" value="true" />
+    <button type="submit" class="delete-next-fixed-price-plan-button">Delete configured fixed price next plan</button>
+</form>
+{% endif %}

templates/corporate/support/remote_realm_details.html

@@ -63,6 +63,8 @@
         {% set plan_data = support_data[remote_realm.id].plan_data %}
         {% set format_discount = format_discount %}
         {% set dollar_amount = dollar_amount %}
+        {% set remote_id = remote_realm.id %}
+        {% set remote_type = "remote_realm_id" %}
         {% include 'corporate/support/next_plan_details.html' %}
     {% endwith %}
 </div>

templates/corporate/support/remote_server_support.html

@@ -103,6 +103,8 @@
                     {% set plan_data = remote_servers_support_data[remote_server.id].plan_data %}
                     {% set format_discount = format_discount %}
                     {% set dollar_amount = dollar_amount %}
+                    {% set remote_id = remote_server.id %}
+                    {% set remote_type = "remote_server_id" %}
                     {% include 'corporate/support/next_plan_details.html' %}
                 {% endwith %}
             </div>

web/styles/portico/activity.css

@@ -170,6 +170,7 @@ tr.admin td:first-child {
     }
 }
 
+.delete-next-fixed-price-plan-button,
 .approve-sponsorship-button,
 .support-search-button,
 .support-submit-button,
@@ -228,6 +229,7 @@ tr.admin td:first-child {
     }
 }
 
+.delete-next-fixed-price-plan-button,
 .delete-user-button,
 .scrub-realm-button {
     color: hsl(0deg 0% 100%);