upgrade: Minor text changes to free trial page.

Fixes #27684

corporate/lib/stripe.py

@@ -539,6 +539,7 @@ class UpgradePageContext(TypedDict):
     email: str
     exempt_from_license_number_check: bool
     free_trial_days: Optional[int]
+    free_trial_end_date: Optional[str]
     is_demo_organization: bool
     manual_license_management: bool
     min_invoiced_licenses: int
@@ -1315,13 +1316,23 @@ class BillingSession(ABC):
         seat_count = self.current_count_for_billed_licenses()
         signed_seat_count, salt = sign_string(str(seat_count))
         tier = initial_upgrade_request.tier
+
+        free_trial_days = settings.FREE_TRIAL_DAYS
+        free_trial_end_date = None
+        if free_trial_days is not None:
+            _, _, free_trial_end, _ = compute_plan_parameters(
+                CustomerPlan.STANDARD, False, CustomerPlan.ANNUAL, None, True
+            )
+            free_trial_end_date = f"{free_trial_end:%B} {free_trial_end.day}, {free_trial_end.year}"
+
         context: UpgradePageContext = {
             "customer_name": customer_specific_context["customer_name"],
             "default_invoice_days_until_due": DEFAULT_INVOICE_DAYS_UNTIL_DUE,
             "discount_percent": format_discount_percentage(percent_off),
             "email": customer_specific_context["email"],
             "exempt_from_license_number_check": exempt_from_license_number_check,
-            "free_trial_days": settings.FREE_TRIAL_DAYS,
+            "free_trial_days": free_trial_days,
+            "free_trial_end_date": free_trial_end_date,
             "is_demo_organization": customer_specific_context["is_demo_organization"],
             "manual_license_management": initial_upgrade_request.manual_license_management,
             "min_invoiced_licenses": max(seat_count, MIN_INVOICED_LICENSES),

corporate/tests/test_stripe.py

@@ -1031,7 +1031,7 @@ class StripeTest(StripeTestCase):
             free_trial_end_date = self.now + timedelta(days=60)
 
             self.assert_in_success_response(
-                ["You won't be charged", "Free Trial", "60 day"], response
+                ["You won't be charged", "Free Trial", "60-day"], response
             )
             self.assertNotEqual(user.realm.plan_type, Realm.PLAN_TYPE_STANDARD)
             self.assertFalse(Customer.objects.filter(realm=user.realm).exists())
@@ -1249,7 +1249,7 @@ class StripeTest(StripeTestCase):
             response = self.client_get("/upgrade/")
 
             self.assert_in_success_response(
-                ["You won't be charged", "Free Trial", "60 day"], response
+                ["You won't be charged", "Free Trial", "60-day"], response
             )
             self.assertNotEqual(user.realm.plan_type, Realm.PLAN_TYPE_STANDARD)
             self.assertFalse(Customer.objects.filter(realm=user.realm).exists())

templates/corporate/upgrade.html

@@ -9,11 +9,11 @@
 <div id="upgrade-page" class="register-account flex full-page">
     <div class="center-block new-style">
         <div class="pitch">
-            <h1>Upgrade {{ customer_name }} to
+            <h1>
                 {% if free_trial_days %}
-                    Zulip Cloud Standard free trial
+                Start free trial of Zulip Cloud Standard
                 {% else %}
-                    {{ plan }}
+                Upgrade {{ customer_name }} to {{ plan }}
                 {% endif %}
             </h1>
         </div>
@@ -28,11 +28,9 @@
 
                     <div id="free-trial-top-banner" class="input-box upgrade-page-field">
                         {% if free_trial_days %}
-                        <div id="free-trial-alert-message" class="alert alert-info">
-                            Upgrade now to start your {{ free_trial_days }} day free trial
-                            of Zulip Cloud Standard!
-                        </div>
                         <div class="not-editable-realm-field">
+                            Start your {{ free_trial_days }}-day free trial, with no upfront payment.
+                            <br /><br />
                             You won't be charged during the free trial. You can also downgrade to
                             Zulip Cloud Free, our forever free plan, at any time.
                         </div>
@@ -71,7 +69,7 @@
                     <div class="input-box upgrade-page-field no-validation">
                         <label for="due-today" class="inline-block label-title">Due
                             {% if free_trial_days %}
-                                after free trial
+                            on {{ free_trial_end_date }}
                             {% else %}
                             today
                             {% endif %}
@@ -160,7 +158,7 @@
                         <button id="org-upgrade-button{% if is_demo_organization %} permanent-disabled{% endif %}" {% if not payment_method %}disabled{% endif %}>
                             <span id="org-upgrade-button-text">
                                 {% if free_trial_days %}
-                                    Start {{ free_trial_days }} day free trial
+                                    Start {{ free_trial_days }}-day free trial
                                 {% else %}
                                     Purchase Zulip Cloud Standard
                                 {% endif %}

web/styles/portico/billing.css

@@ -561,6 +561,10 @@ input[name="licenses"] {
     }
 }
 
+#upgrade-page-details #free-trial-top-banner {
+    margin-top: 10px;
+}
+
 #billing-page-details .billing-frequency-message.not-editable-realm-field,
 #free-trial-top-banner .not-editable-realm-field,
 #upgrade-page-details .license-management-section .not-editable-realm-field {