From 980a8458d4fc2c490adea8e7ebcdb4e29d4092cc Mon Sep 17 00:00:00 2001
From: roo hutton <roo.hutton@overleaf.com>
Date: Fri, 13 Jun 2025 10:02:16 +0100
Subject: [PATCH] Merge pull request #26140 from overleaf/rh-cio-sub-status

Use analyticsId as primary identifier in customer.io and support best-subscription property

GitOrigin-RevId: d412f2edbff2e430d7fe3192b8843ad9ac2c226a
---
 .../app/src/Features/Project/ProjectListController.mjs | 10 ++++++++++
 services/web/app/views/_customer_io.pug                |  7 ++++---
 .../unit/src/Project/ProjectListController.test.mjs    |  1 +
 3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/services/web/app/src/Features/Project/ProjectListController.mjs b/services/web/app/src/Features/Project/ProjectListController.mjs
index 1faa2df017..ab2b0e3082 100644
--- a/services/web/app/src/Features/Project/ProjectListController.mjs
+++ b/services/web/app/src/Features/Project/ProjectListController.mjs
@@ -409,6 +409,15 @@ async function projectListPage(req, res, next) {
     'papers-notification-banner'
   )
 
+  const customerIoEnabled =
+    await SplitTestHandler.promises.hasUserBeenAssignedToVariant(
+      req,
+      userId,
+      'customer-io-trial-conversion',
+      'enabled',
+      true
+    )
+
   res.render('project/list-react', {
     title: 'your_projects',
     usersBestSubscription,
@@ -440,6 +449,7 @@ async function projectListPage(req, res, next) {
       })),
     hasIndividualPaidSubscription,
     userRestrictions: Array.from(req.userRestrictions || []),
+    customerIoEnabled,
   })
 }
 
diff --git a/services/web/app/views/_customer_io.pug b/services/web/app/views/_customer_io.pug
index 81d75f7d7f..781dfaab13 100644
--- a/services/web/app/views/_customer_io.pug
+++ b/services/web/app/views/_customer_io.pug
@@ -1,10 +1,12 @@
 if(customerIoEnabled && ExposedSettings.cioWriteKey && ExposedSettings.cioSiteId)
-	script(type="text/javascript", id="cio-loader", nonce=scriptNonce, data-cio-write-key=ExposedSettings.cioWriteKey, data-cio-site-id=ExposedSettings.cioSiteId, data-session-analytics-id=getSessionAnalyticsId(), data-user-id=getLoggedInUserId()).
+	script(type="text/javascript", id="cio-loader", nonce=scriptNonce, data-best-subscription=(usersBestSubscription && usersBestSubscription.type), data-cio-write-key=ExposedSettings.cioWriteKey, data-cio-site-id=ExposedSettings.cioSiteId, data-session-analytics-id=getSessionAnalyticsId(), data-user-id=getLoggedInUserId()).
 		var cioSettings = document.querySelector('#cio-loader').dataset;
 		var analyticsId = cioSettings.sessionAnalyticsId;
 		var siteId = cioSettings.cioSiteId;
 		var writeKey = cioSettings.cioWriteKey;
 		var userId = cioSettings.userId;
+		var usersBestSubscription = cioSettings.bestSubscription
+
 
 		!function(){var i="cioanalytics", analytics=(window[i]=window[i]||[]);if(!analytics.initialize)if(analytics.invoked)window.console&&console.error&&console.error("Snippet included twice.");else{analytics.invoked=!0;analytics.methods=["trackSubmit","trackClick","trackLink","trackForm","pageview","identify","reset","group","track","ready","alias","debug","page","once","off","on","addSourceMiddleware","addIntegrationMiddleware","setAnonymousId","addDestinationMiddleware"];analytics.factory=function(e){return function(){var t=Array.prototype.slice.call(arguments);t.unshift(e);analytics.push(t);return analytics}};for(var e=0;e<analytics.methods.length;e++){var key=analytics.methods[e];analytics[key]=analytics.factory(key)}analytics.load=function(key,e){var t=document.createElement("script");t.type="text/javascript";t.async=!0;t.setAttribute('data-global-customerio-analytics-key', i);t.src="https://cdp.customer.io/v1/analytics-js/snippet/" + key + "/analytics.min.js";var n=document.getElementsByTagName("script")[0];n.parentNode.insertBefore(t,n);analytics._writeKey=key;analytics._loadOptions=e};analytics.SNIPPET_VERSION="4.15.3";
 			analytics.load(
@@ -21,6 +23,5 @@ if(customerIoEnabled && ExposedSettings.cioWriteKey && ExposedSettings.cioSiteId
 			if (analyticsId) {
 				analytics.setAnonymousId(analyticsId);
 			};
-			// If userId is undefined, identify sends only the anonymousId (aka analyticsId)
-			analytics.identify(userId);
+			analytics.identify(analyticsId, {overleafId: userId, 'best-subscription-type': usersBestSubscription  });
 		}}();
diff --git a/services/web/test/unit/src/Project/ProjectListController.test.mjs b/services/web/test/unit/src/Project/ProjectListController.test.mjs
index 2b3007e047..ae1bc72210 100644
--- a/services/web/test/unit/src/Project/ProjectListController.test.mjs
+++ b/services/web/test/unit/src/Project/ProjectListController.test.mjs
@@ -98,6 +98,7 @@ describe('ProjectListController', function () {
     ctx.SplitTestHandler = {
       promises: {
         getAssignment: sinon.stub().resolves({ variant: 'default' }),
+        hasUserBeenAssignedToVariant: sinon.stub().resolves(false),
       },
     }
     ctx.SplitTestSessionHandler = {