feat: Implement draft version of getBillingAndUsage query

packages/backend/src/graphql/queries/get-billing-and-usage.ee.ts

@@ -0,0 +1,53 @@
+import Context from '../../types/express/context';
+import Billing from '../../helpers/billing/index.ee';
+
+type Subscription = {
+  monthlyQuota: string;
+  status: string;
+  nextBillDate: string;
+  nextBillAmount: string;
+  updateUrl: string;
+  cancelUrl: string;
+};
+
+const getBillingAndUsage = async (
+  _parent: unknown,
+  _params: unknown,
+  context: Context
+) => {
+  const persistedSubscription = await context.currentUser.$relatedQuery(
+    'subscription'
+  );
+
+  let subscription: Subscription;
+
+  if (persistedSubscription) {
+    const currentPlan = Billing.paddlePlans.find(
+      (plan) => plan.productId === persistedSubscription.paddlePlanId
+    );
+
+    subscription = {
+      monthlyQuota: currentPlan.limit,
+      status: persistedSubscription.status,
+      nextBillDate: persistedSubscription.nextBillDate,
+      nextBillAmount: '€' + persistedSubscription.nextBillAmount,
+      updateUrl: persistedSubscription.updateUrl,
+      cancelUrl: persistedSubscription.cancelUrl,
+    };
+  } else {
+    subscription = {
+      monthlyQuota: 'Free trial',
+      status: null,
+      nextBillDate: '---',
+      nextBillAmount: '---',
+      updateUrl: null,
+      cancelUrl: null,
+    };
+  }
+
+  return {
+    subscription,
+  };
+};
+
+export default getBillingAndUsage;