From 3dee9e75f9cf64f7841bf648652ea7b0b1561cfa Mon Sep 17 00:00:00 2001
From: Eric Bailey <git@esb.lol>
Date: Thu, 4 Dec 2025 16:18:00 -0600
Subject: [PATCH] Add derived flags, add back disabled adult content for users
 under 18

---
 src/ageAssurance/index.tsx       | 30 ++++++++++++++++++++-----
 src/ageAssurance/util.ts         |  4 ++++
 src/screens/Moderation/index.tsx | 38 +++++++++++++++++++++++++++-----
 3 files changed, 61 insertions(+), 11 deletions(-)

diff --git a/src/ageAssurance/index.tsx b/src/ageAssurance/index.tsx
index 1c815a755b..9a0a9c9d51 100644
--- a/src/ageAssurance/index.tsx
+++ b/src/ageAssurance/index.tsx
@@ -3,6 +3,7 @@ import {createContext, useCallback, useContext, useEffect, useMemo} from 'react'
 import {useGetAndRegisterPushToken} from '#/lib/notifications/notifications'
 import {Provider as RedirectOverlayProvider} from '#/ageAssurance/components/RedirectOverlay'
 import {AgeAssuranceDataProvider} from '#/ageAssurance/data'
+import {useAgeAssuranceDataContext} from '#/ageAssurance/data'
 import {logger} from '#/ageAssurance/logger'
 import {
   useAgeAssuranceState,
@@ -13,6 +14,7 @@ import {
   type AgeAssuranceState,
   AgeAssuranceStatus,
 } from '#/ageAssurance/types'
+import {isUserUnderAdultAge} from '#/ageAssurance/util'
 
 export {
   prefetchConfig as prefetchAgeAssuranceConfig,
@@ -27,6 +29,10 @@ const AgeAssuranceStateContext = createContext<{
   Access: typeof AgeAssuranceAccess
   Status: typeof AgeAssuranceStatus
   state: AgeAssuranceState
+  flags: {
+    adultContentDisabled: boolean
+    chatDisabled: boolean
+  }
 }>({
   Access: AgeAssuranceAccess,
   Status: AgeAssuranceStatus,
@@ -35,6 +41,10 @@ const AgeAssuranceStateContext = createContext<{
     status: AgeAssuranceStatus.Unknown,
     access: AgeAssuranceAccess.Full,
   },
+  flags: {
+    adultContentDisabled: false,
+    chatDisabled: false,
+  },
 })
 
 /**
@@ -58,6 +68,7 @@ export function Provider({children}: {children: React.ReactNode}) {
 
 function InnerProvider({children}: {children: React.ReactNode}) {
   const state = useAgeAssuranceState()
+  const {data} = useAgeAssuranceDataContext()
   const getAndRegisterPushToken = useGetAndRegisterPushToken()
 
   const handleAccessUpdate = useCallback(
@@ -76,14 +87,23 @@ function InnerProvider({children}: {children: React.ReactNode}) {
 
   return (
     <AgeAssuranceStateContext.Provider
-      value={useMemo(
-        () => ({
+      value={useMemo(() => {
+        const chatDisabled = state.access !== AgeAssuranceAccess.Full
+        const isUnderage = data?.birthdate
+          ? isUserUnderAdultAge(data.birthdate)
+          : true
+        const adultContentDisabled =
+          state.access !== AgeAssuranceAccess.Full || isUnderage
+        return {
           Access: AgeAssuranceAccess,
           Status: AgeAssuranceStatus,
           state,
-        }),
-        [state],
-      )}>
+          flags: {
+            adultContentDisabled,
+            chatDisabled,
+          },
+        }
+      }, [state, data])}>
       {children}
     </AgeAssuranceStateContext.Provider>
   )
diff --git a/src/ageAssurance/util.ts b/src/ageAssurance/util.ts
index bf1248fc19..1043283305 100644
--- a/src/ageAssurance/util.ts
+++ b/src/ageAssurance/util.ts
@@ -82,3 +82,7 @@ export function isLegacyBirthdateBug(birthDate: string) {
 export function isUserUnderMinimumAge(birthDate: string) {
   return getAge(new Date(birthDate)) < DEFAULT_MIN_AGE
 }
+
+export function isUserUnderAdultAge(birthDate: string) {
+  return getAge(new Date(birthDate)) < 18
+}
diff --git a/src/screens/Moderation/index.tsx b/src/screens/Moderation/index.tsx
index 6fed53c510..76667d44a2 100644
--- a/src/screens/Moderation/index.tsx
+++ b/src/screens/Moderation/index.tsx
@@ -12,6 +12,7 @@ import {
 } from '#/lib/routes/types'
 import {logger} from '#/logger'
 import {isIOS} from '#/platform/detection'
+import {useIsBirthdateUpdateAllowed} from '#/state/birthdate'
 import {
   useMyLabelersQuery,
   usePreferencesQuery,
@@ -21,6 +22,7 @@ import {
 import {isNonConfigurableModerationAuthority} from '#/state/session/additional-moderation-authorities'
 import {useSetMinimalShellMode} from '#/state/shell'
 import {atoms as a, useBreakpoints, useTheme, type ViewStyleProp} from '#/alf'
+import {Admonition} from '#/components/Admonition'
 import {AgeAssuranceAdmonition} from '#/components/ageAssurance/AgeAssuranceAdmonition'
 import {Button} from '#/components/Button'
 import {useGlobalDialogsControlContext} from '#/components/dialogs/Context'
@@ -164,6 +166,7 @@ export function ModerationScreenInner({
     error: labelersError,
   } = useMyLabelersQuery()
   const aa = useAgeAssurance()
+  const isBirthdateUpdateAllowed = useIsBirthdateUpdateAllowed()
 
   useFocusEffect(
     useCallback(() => {
@@ -173,10 +176,17 @@ export function ModerationScreenInner({
 
   const {mutateAsync: setAdultContentPref, variables: optimisticAdultContent} =
     usePreferencesSetAdultContentMutation()
-  const adultContentEnabled = !!(
+  let adultContentEnabled = !!(
     (optimisticAdultContent && optimisticAdultContent.enabled) ||
     (!optimisticAdultContent && preferences.moderationPrefs.adultContentEnabled)
   )
+  const adultContentUIDisabledOnIOS = isIOS && !adultContentEnabled
+  let adultContentUIDisabled = adultContentUIDisabledOnIOS
+
+  if (aa.flags.adultContentDisabled) {
+    adultContentEnabled = false
+    adultContentUIDisabled = true
+  }
 
   const onToggleAdultContentEnabled = useCallback(
     async (selected: boolean) => {
@@ -193,10 +203,26 @@ export function ModerationScreenInner({
     [setAdultContentPref],
   )
 
-  const disabledOnIOS = isIOS && !adultContentEnabled
-
   return (
     <View style={[a.pt_2xl, a.px_lg, gtMobile && a.px_2xl]}>
+      {aa.flags.adultContentDisabled && isBirthdateUpdateAllowed && (
+        <View style={[a.pb_2xl]}>
+          <Admonition type="tip" style={[a.pb_md]}>
+            <Trans>
+              Your declared age is under 18. Some settings below may be
+              disabled. If this was a mistake, you may edit your birthdate in
+              your{' '}
+              <InlineLinkText
+                to="/settings/account"
+                label={_(msg`Go to account settings`)}>
+                account settings
+              </InlineLinkText>
+              .
+            </Trans>
+          </Admonition>
+        </View>
+      )}
+
       <Text
         style={[
           a.text_md,
@@ -339,14 +365,14 @@ export function ModerationScreenInner({
                   a.flex_row,
                   a.align_center,
                   a.justify_between,
-                  disabledOnIOS && {opacity: 0.5},
+                  adultContentUIDisabled && {opacity: 0.5},
                 ]}>
                 <Text style={[a.font_semi_bold, t.atoms.text_contrast_high]}>
                   <Trans>Enable adult content</Trans>
                 </Text>
                 <Toggle.Item
                   label={_(msg`Toggle to enable or disable adult content`)}
-                  disabled={disabledOnIOS}
+                  disabled={adultContentUIDisabled}
                   name="adultContent"
                   value={adultContentEnabled}
                   onChange={onToggleAdultContentEnabled}>
@@ -362,7 +388,7 @@ export function ModerationScreenInner({
                   </View>
                 </Toggle.Item>
               </View>
-              {disabledOnIOS && (
+              {adultContentUIDisabledOnIOS && (
                 <View style={[a.pb_lg, a.px_lg]}>
                   <Text>
                     <Trans>