Merge pull request #8238 from vector-im/feature/bma/postHogOff

Create Posthog instance only when user consent is given

vector/src/main/java/im/vector/app/features/analytics/impl/DefaultVectorAnalytics.kt

@@ -41,21 +41,25 @@ private val IGNORED_OPTIONS: Options? = null
 
 @Singleton
 class DefaultVectorAnalytics @Inject constructor(
-        postHogFactory: PostHogFactory,
+        private val postHogFactory: PostHogFactory,
         private val sentryAnalytics: SentryAnalytics,
-        analyticsConfig: AnalyticsConfig,
+        private val analyticsConfig: AnalyticsConfig,
         private val analyticsStore: AnalyticsStore,
         private val lateInitUserPropertiesFactory: LateInitUserPropertiesFactory,
         @NamedGlobalScope private val globalScope: CoroutineScope
 ) : VectorAnalytics {
 
-    private val posthog: PostHog? = when {
+    private var posthog: PostHog? = null
+
+    private fun createPosthog(): PostHog? {
+        return when {
             analyticsConfig.isEnabled -> postHogFactory.createPosthog()
             else -> {
                 Timber.tag(analyticsTag.value).w("Analytics is disabled")
                 null
             }
         }
+    }
 
     // Cache for the store values
     private var userConsent: Boolean? = null
@@ -150,6 +154,7 @@ class DefaultVectorAnalytics @Inject constructor(
         userConsent?.let { _userConsent ->
             when (_userConsent) {
                 true -> {
+                    posthog = createPosthog()
                     posthog?.optOut(false)
                     identifyPostHog()
                     pendingUserProperties?.let { doUpdateUserProperties(it) }
@@ -159,6 +164,7 @@ class DefaultVectorAnalytics @Inject constructor(
                     // When opting out, ensure that the queue is flushed first, or it will be flushed later (after user has revoked consent)
                     posthog?.flush()
                     posthog?.optOut(true)
+                    posthog = null
                 }
             }
         }

vector/src/test/java/im/vector/app/features/analytics/impl/DefaultVectorAnalyticsTest.kt

@@ -80,6 +80,12 @@ class DefaultVectorAnalyticsTest {
 
     @Test
     fun `when revoking consent to analytics then updates posthog opt out to true and closes Sentry`() = runTest {
+        // For opt-out to have effect on Posthog, it has to be used first, so it has to be opt-in first
+        fakeAnalyticsStore.givenUserContent(consent = true)
+        fakePostHog.verifyOptOutStatus(optedOut = false)
+        fakeSentryAnalytics.verifySentryInit()
+
+        // Then test opt-out
         fakeAnalyticsStore.givenUserContent(consent = false)
 
         fakePostHog.verifyOptOutStatus(optedOut = true)