From 44a8c5ecd81998f26ddbeb75b2900135efad241c Mon Sep 17 00:00:00 2001
From: Paul D'Ambra <paul@posthog.com>
Date: Tue, 18 Jun 2024 09:37:52 +0100
Subject: [PATCH] chore: remove artificial lag (#23039)

---
 frontend/src/lib/constants.tsx                |  1 -
 .../sessionRecordingsPlaylistLogic.ts         | 21 +------------------
 2 files changed, 1 insertion(+), 21 deletions(-)

diff --git a/frontend/src/lib/constants.tsx b/frontend/src/lib/constants.tsx
index 7366ef818c1ee..106c55e8a92ee 100644
--- a/frontend/src/lib/constants.tsx
+++ b/frontend/src/lib/constants.tsx
@@ -199,7 +199,6 @@ export const FEATURE_FLAGS = {
     PLUGINS_FILTERING: 'plugins-filtering', // owner: @benjackwhite
     SESSION_REPLAY_HOG_QL_FILTERING: 'session-replay-hogql-filtering', // owner: #team-replay
     INSIGHT_LOADING_BAR: 'insight-loading-bar', // owner: @aspicer
-    SESSION_REPLAY_ARTIFICIAL_LAG: 'artificial-lag-query-performance', // owner: #team-replay
     PROXY_AS_A_SERVICE: 'proxy-as-a-service', // owner: #team-infrastructure
     LIVE_EVENTS: 'live-events', // owner: @zach or @jams
     SESSION_REPLAY_NETWORK_VIEW: 'session-replay-network-view', // owner: #team-replay
diff --git a/frontend/src/scenes/session-recordings/playlist/sessionRecordingsPlaylistLogic.ts b/frontend/src/scenes/session-recordings/playlist/sessionRecordingsPlaylistLogic.ts
index 4d7feea2de967..0844fd2d94ee4 100644
--- a/frontend/src/scenes/session-recordings/playlist/sessionRecordingsPlaylistLogic.ts
+++ b/frontend/src/scenes/session-recordings/playlist/sessionRecordingsPlaylistLogic.ts
@@ -9,7 +9,6 @@ import { UniversalFiltersGroup, UniversalFilterValue } from 'lib/components/Univ
 import { DEFAULT_UNIVERSAL_GROUP_FILTER } from 'lib/components/UniversalFilters/universalFiltersLogic'
 import { isActionFilter, isEventFilter } from 'lib/components/UniversalFilters/utils'
 import { FEATURE_FLAGS } from 'lib/constants'
-import { now } from 'lib/dayjs'
 import { featureFlagLogic } from 'lib/logic/featureFlagLogic'
 import { objectClean, objectsEqual } from 'lib/utils'
 import { eventUsageLogic } from 'lib/utils/eventUsageLogic'
@@ -284,14 +283,6 @@ export const sessionRecordingsPlaylistLogic = kea<sessionRecordingsPlaylistLogic
                         hog_ql_filtering: values.useHogQLFiltering,
                     }
 
-                    if (values.artificialLag && !params.date_to) {
-                        // values.artificalLag is a number of seconds to delay the recordings by
-                        // convert it to an absolute UTC timestamp as the relative date parsing in the backend
-                        // can't cope with seconds as a relative date
-                        const absoluteLag = now().subtract(values.artificialLag, 'second')
-                        params['date_to'] = absoluteLag.toISOString()
-                    }
-
                     if (values.orderBy === 'start_time') {
                         if (direction === 'older') {
                             params['date_to'] =
@@ -353,7 +344,7 @@ export const sessionRecordingsPlaylistLogic = kea<sessionRecordingsPlaylistLogic
 
                         recordings = [...recordings, ...fetchedRecordings.results]
                     }
-                    // TODO: Check for pinnedRecordings being IDs and fetch them, returnig the merged list
+                    // TODO: Check for pinnedRecordings being IDs and fetch them, returning the merged list
 
                     return recordings
                 },
@@ -578,16 +569,6 @@ export const sessionRecordingsPlaylistLogic = kea<sessionRecordingsPlaylistLogic
         },
     })),
     selectors({
-        artificialLag: [
-            (s) => [s.featureFlags],
-            (featureFlags) => {
-                const lag = featureFlags[FEATURE_FLAGS.SESSION_REPLAY_ARTIFICIAL_LAG]
-                // lag needs to match `\d+` when present it is a number of seconds delay
-                // relative_date parsing in the backend can't cope with seconds
-                // so it will be converted to an absolute date when added to API call
-                return typeof lag === 'string' && /^\d+$/.test(lag) ? Number.parseInt(lag) : null
-            },
-        ],
         useHogQLFiltering: [
             (s) => [s.featureFlags],
             (featureFlags) => !!featureFlags[FEATURE_FLAGS.SESSION_REPLAY_HOG_QL_FILTERING],