support: Handle missing current licenses data for support views.

corporate/lib/support.py

@@ -10,6 +10,7 @@ from django.utils.timezone import now as timezone_now
 from corporate.lib.stripe import BillingSession
 from corporate.models import Customer, CustomerPlan, get_current_plan_by_customer
 from zerver.models import Realm, get_realm
+from zilencer.lib.remote_counts import MissingDataError
 
 
 @dataclass
@@ -19,6 +20,7 @@ class PlanData:
     licenses: Optional[int] = None
     licenses_used: Optional[int] = None
     is_legacy_plan: bool = False
+    warning: Optional[str] = None
 
 
 def get_support_url(realm: Realm) -> str:
@@ -55,7 +57,10 @@ def get_current_plan_data_for_support_view(billing_session: BillingSession) -> P
             if new_plan is not None:
                 plan_data.current_plan = new_plan  # nocoverage
             plan_data.licenses = last_ledger_entry.licenses
-            plan_data.licenses_used = billing_session.current_count_for_billed_licenses()
+            try:
+                plan_data.licenses_used = billing_session.current_count_for_billed_licenses()
+            except MissingDataError:  # nocoverage
+                plan_data.warning = "Recent data missing: No information for used licenses"
         assert plan_data.current_plan is not None  # for mypy
         plan_data.is_legacy_plan = (
             plan_data.current_plan.tier == CustomerPlan.TIER_SELF_HOSTED_LEGACY

templates/analytics/current_plan_details.html

@@ -1,4 +1,10 @@
 <h4>📅 Current plan information:</h4>
+{% if plan_data.warning %}
+<div class="current-plan-data-missing">
+    {{ plan_data.warning }}
+    <br />
+</div>
+{% endif %}
 <b>Plan name</b>: {{ plan_data.current_plan.name }}<br />
 <b>Status</b>: {{ plan_data.current_plan.get_plan_status_as_text() }}<br />
 {% if plan_data.is_legacy_plan %}

web/styles/portico/activity.css

@@ -85,6 +85,7 @@ tr.admin td:first-child {
     color: hsl(120deg 100% 33%);
 }
 
+.current-plan-data-missing,
 .bad {
     font-weight: bold;
     color: hsl(0deg 100% 39%);