chore: support datafast analytics revenue track

env.example

@@ -119,8 +119,8 @@ NEXT_PUBLIC_SELINE_TOKEN=""
 # DataFast Analytics (https://datafa.st)
 # https://mksaas.com/docs/analytics#datafast
 # -----------------------------------------------------------------------------
-NEXT_PUBLIC_DATAFAST_ANALYTICS_ID=""
+NEXT_PUBLIC_DATAFAST_WEBSITE_ID=""
-NEXT_PUBLIC_DATAFAST_ANALYTICS_DOMAIN=""
+NEXT_PUBLIC_DATAFAST_DOMAIN=""
 
 
 # -----------------------------------------------------------------------------

src/actions/create-checkout-session.ts

@@ -1,5 +1,6 @@
 'use server';
 
+import { websiteConfig } from '@/config/website';
 import { findPlanByPlanId } from '@/lib/price-plan';
 import { getSession } from '@/lib/server';
 import { getUrlWithLocale } from '@/lib/urls/urls';
@@ -8,6 +9,7 @@ import type { CreateCheckoutParams } from '@/payment/types';
 import { Routes } from '@/routes';
 import { getLocale } from 'next-intl/server';
 import { createSafeActionClient } from 'next-safe-action';
+import { cookies } from 'next/headers';
 import { z } from 'zod';
 
 // Create a safe action client
@@ -67,12 +69,22 @@ export const createCheckoutAction = actionClient
       }
 
       // Add user id to metadata, so we can get it in the webhook event
-      const customMetadata = {
+      const customMetadata: Record<string, string> = {
         ...metadata,
         userId: session.user.id,
         userName: session.user.name,
       };
 
+      // https://datafa.st/docs/stripe-checkout-api
+      // if datafast analytics is enabled, add the revenue attribution to the metadata
+      if (websiteConfig.features.enableDatafastRevenueTrack) {
+        const cookieStore = await cookies();
+        customMetadata.datafast_visitor_id =
+          cookieStore.get('datafast_visitor_id')?.value ?? '';
+        customMetadata.datafast_session_id =
+          cookieStore.get('datafast_session_id')?.value ?? '';
+      }
+
       // Create the checkout session with localized URLs
       const successUrl = getUrlWithLocale(
         '/settings/billing?session_id={CHECKOUT_SESSION_ID}',

src/config/website.tsx

@@ -37,6 +37,7 @@ export const websiteConfig: WebsiteConfig = {
     enableUpgradeCard: true,
     enableAffonsoAffiliate: false,
     enablePromotekitAffiliate: false,
+    enableDatafastRevenueTrack: false,
   },
   routes: {
     defaultLoginRedirect: '/dashboard',

src/types/index.d.ts

@@ -70,6 +70,7 @@ export interface FeaturesConfig {
   enableUpgradeCard?: boolean;        // Whether to enable the upgrade card in the sidebar
   enableAffonsoAffiliate?: boolean;   // Whether to enable affonso affiliate
   enablePromotekitAffiliate?: boolean;   // Whether to enable promotekit affiliate
+  enableDatafastRevenueTrack?: boolean;   // Whether to enable datafast revenue tracking
 }
 
 /**