UX: Surface stripe AuthenticationError on the Admin Dashboard

app/controllers/concerns/stripe.rb

@@ -4,6 +4,8 @@ module DiscourseSubscriptions
   module Stripe
     extend ActiveSupport::Concern
 
+    AUTH_PROBLEM_IDENTIFIER = "#{DiscourseSubscriptions::PLUGIN_NAME}.stripe_auth_error"
+
     def set_api_key
       ::Stripe.api_key = SiteSetting.discourse_subscriptions_secret_key
     end

app/services/discourse_subscriptions/campaign.rb

@@ -17,6 +17,7 @@ module DiscourseSubscriptions
         product_ids = product_ids.include?(campaign_product) ? [campaign_product] : []
       end
 
+      begin
         amount = 0.00
         subscriptions = get_subscription_data
         subscriptions = filter_to_subscriptions_products(subscriptions, product_ids)
@@ -37,6 +38,18 @@ module DiscourseSubscriptions
         SiteSetting.discourse_subscriptions_campaign_amount_raised = amount.round(2)
 
         check_goal_status
+      rescue ::Stripe::AuthenticationError
+        message =
+          I18n.t(
+            "discourse_subscriptions.auth.invalid",
+            settingsUrl: "admin/site_settings/category/discourse_subscriptions",
+          )
+        AdminDashboardData.add_found_scheduled_check_problem(
+          AdminDashboardData::Problem.new(message, identifier: AUTH_PROBLEM_IDENTIFIER),
+        )
+      else
+        AdminDashboardData.clear_found_problem(AUTH_PROBLEM_IDENTIFIER)
+      end
     end
 
     def create_campaign

config/locales/server.en.yml

@@ -4,3 +4,5 @@ en:
     card:
       declined: Card Declined
       invalid: Card Invalid
+    auth:
+      invalid: Invalid Credentials for Stripe. Please check your <a href="%{settingsUrl}" target="_blank">discourse-subscriptions settings</a>.

plugin.rb

@@ -27,6 +27,10 @@ extend_content_security_policy(script_src: %w[https://js.stripe.com/v3/ https://
 
 add_admin_route "discourse_subscriptions.admin_navigation", "discourse-subscriptions.products"
 
+module ::DiscourseSubscriptions
+  PLUGIN_NAME = "discourse-subscriptions"
+end
+
 Discourse::Application.routes.append do
   get "/admin/plugins/discourse-subscriptions" => "admin/plugins#index",
       :constraints => AdminConstraint.new

spec/services/campaign_spec.rb

@@ -150,6 +150,31 @@ describe DiscourseSubscriptions::Campaign do
           expect(SiteSetting.discourse_subscriptions_campaign_amount_raised).to eq 8.33
         end
       end
+
+      context "with ::Stripe::AuthenticationError" do
+        it "adds a problem to the admin dashboard" do
+          ::Stripe::Subscription.expects(:list).raises(::Stripe::AuthenticationError)
+
+          DiscourseSubscriptions::Campaign.new.refresh_data
+
+          expect(AdminDashboardData.load_found_scheduled_check_problems.count).to eq(1)
+        end
+
+        it "clears the problem when no errors" do
+          ::Stripe::Subscription.expects(:list).returns(data: [subscription], has_more: false)
+          ::Stripe::Invoice.expects(:list).returns(data: [invoice, invoice2], has_more: false)
+          AdminDashboardData.add_found_scheduled_check_problem(
+            AdminDashboardData::Problem.new(
+              "x",
+              identifier: DiscourseSubscriptions::Stripe::AUTH_PROBLEM_IDENTIFIER,
+            ),
+          )
+
+          DiscourseSubscriptions::Campaign.new.refresh_data
+
+          expect(AdminDashboardData.load_found_scheduled_check_problems.count).to eq(0)
+        end
+      end
     end
   end