Show a non-standard OTA channel notice in the drawer

When an install is running an OTA deployment from a channel our native
builds don't ship with (e.g. a `pull-request-*` channel applied from the
dev settings), it's easy to forget and end up debugging the wrong bundle.
Surface a warning box at the top of the drawer naming the channel, with a
button to pull the default channel's deployment and relaunch into it.

Generalizes the pull request check in `useApplyPullRequestOTAUpdate` to any
non-standard channel, and renames `revertToEmbedded` to
`restoreDefaultChannel` since that's what it does - it now also reports
when there's no deployment to restore instead of failing silently.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WUSAeJTqPtyvuU4EX7WoRR

src/components/OTAChannelNotice.tsx

@@ -0,0 +1,65 @@
+import {type StyleProp, View, type ViewStyle} from 'react-native'
+import {Trans, useLingui} from '@lingui/react/macro'
+
+import {useApplyPullRequestOTAUpdate} from '#/lib/hooks/useOTAUpdates'
+import {atoms as a, useTheme} from '#/alf'
+import * as Admonition from '#/components/Admonition'
+import {ButtonIcon, ButtonText} from '#/components/Button'
+import {Loader} from '#/components/Loader'
+import {Text} from '#/components/Typography'
+
+/**
+ * Warns that the running bundle came from a channel this build doesn't normally
+ * receive updates from, e.g. a pull request deployment applied from the dev
+ * settings. Renders nothing on a standard channel, and never on web.
+ */
+export function OTAChannelNotice({style}: {style?: StyleProp<ViewStyle>}) {
+  const t = useTheme()
+  const {t: l} = useLingui()
+  const {
+    currentChannel,
+    defaultChannel,
+    isCurrentlyRunningNonStandardChannel,
+    restoreDefaultChannel,
+    pending,
+  } = useApplyPullRequestOTAUpdate()
+
+  if (!isCurrentlyRunningNonStandardChannel) return null
+
+  return (
+    <Admonition.Outer
+      type="warning"
+      style={[t.atoms.bg_contrast_25, a.gap_sm, style]}>
+      <Admonition.Row>
+        <Admonition.Icon />
+        <Admonition.Content style={[a.gap_2xs]}>
+          <Text style={[a.text_sm, a.font_bold, a.leading_snug]}>
+            <Trans>Non-standard OTA channel</Trans>
+          </Text>
+          <Admonition.Text>
+            <Trans>
+              This app is running a deployment of{' '}
+              <Text style={[a.text_sm, a.font_bold, a.leading_snug]}>
+                {currentChannel}
+              </Text>
+              . Restore the {defaultChannel} deployment to get back to a
+              standard build.
+            </Trans>
+          </Admonition.Text>
+        </Admonition.Content>
+      </Admonition.Row>
+      <View style={[a.flex_row]}>
+        <Admonition.Button
+          color="secondary_inverted"
+          label={l`Restore the ${defaultChannel} deployment`}
+          disabled={pending}
+          onPress={() => void restoreDefaultChannel()}>
+          <ButtonText>
+            <Trans>Restore default</Trans>
+          </ButtonText>
+          {pending && <ButtonIcon icon={Loader} />}
+        </Admonition.Button>
+      </View>
+    </Admonition.Outer>
+  )
+}

src/lib/hooks/useOTAUpdates.ts

@@ -16,6 +16,18 @@ import {IS_ANDROID, IS_IOS, IS_TESTFLIGHT} from '#/env'
 
 const MINIMUM_MINIMIZE_TIME = 15 * 60e3
 
+/**
+ * The channel this native build is expected to receive updates from. Anything
+ * else is only reachable through the dev tooling in settings.
+ */
+const DEFAULT_CHANNEL = IS_TESTFLIGHT ? 'testflight' : 'production'
+
+/**
+ * Channels that our native builds are configured with, see `eas.json`. An
+ * update running on any other channel was applied manually.
+ */
+const STANDARD_CHANNELS = ['production', 'testflight', 'development']
+
 async function setExtraParams() {
   await setExtraParamAsync(
     IS_IOS ? 'ios-build-number' : 'android-build-number',
@@ -23,10 +35,7 @@ async function setExtraParams() {
     // This just ensures it gets passed as a string
     `${nativeBuildVersion}`,
   )
-  await setExtraParamAsync(
+  await setExtraParamAsync('channel', DEFAULT_CHANNEL)
-    'channel',
-    IS_TESTFLIGHT ? 'testflight' : 'production',
-  )
 }
 
 async function setExtraParamsPullRequest(channel: string) {
@@ -71,6 +80,14 @@ export function useApplyPullRequestOTAUpdate() {
   const currentChannel = currentlyRunning?.channel
   const isCurrentlyRunningPullRequestDeployment =
     currentChannel?.startsWith('pull-request')
+  /*
+   * Covers pull request deployments as well as any other channel we manually
+   * applied an update from. Note that `channel` is null when updates are
+   * disabled (e.g. in dev), in which case there's nothing to restore.
+   */
+  const isCurrentlyRunningNonStandardChannel = Boolean(
+    currentChannel && !STANDARD_CHANNELS.includes(currentChannel),
+  )
 
   const tryApplyUpdate = async (channel: string) => {
     setPending(true)
@@ -104,19 +121,42 @@ export function useApplyPullRequestOTAUpdate() {
     setPending(false)
   }
 
-  const revertToEmbedded = async () => {
+  /**
+   * Pulls the newest update from the channel this build ships with and relaunches
+   * into it, undoing a manually applied deployment.
+   */
+  const restoreDefaultChannel = async () => {
+    setPending(true)
     try {
-      await updateTestflight()
+      await setExtraParams()
+      const res = await checkForUpdateAsync()
+      if (res.isAvailable) {
+        await fetchUpdateAsync()
+        await reloadAsync()
+      } else {
+        Alert.alert(
+          'Nothing to Restore',
+          `No deployment of ${DEFAULT_CHANNEL} is currently available for your native build. Reinstall the app to get back to a standard build.`,
+        )
+      }
     } catch (e: any) {
       logger.error('Internal OTA Update Error', {error: `${e}`})
+      Alert.alert(
+        'Restore Failed',
+        `Could not restore the ${DEFAULT_CHANNEL} deployment: ${e}`,
+      )
+    } finally {
+      setPending(false)
     }
   }
 
   return {
     tryApplyUpdate,
-    revertToEmbedded,
+    restoreDefaultChannel,
     isCurrentlyRunningPullRequestDeployment,
+    isCurrentlyRunningNonStandardChannel,
     currentChannel,
+    defaultChannel: DEFAULT_CHANNEL,
     pending,
   }
 }

src/lib/hooks/useOTAUpdates.web.ts

@@ -2,9 +2,11 @@ export function useOTAUpdates() {}
 export function useApplyPullRequestOTAUpdate() {
   return {
     tryApplyUpdate: async (_channel: string) => {},
-    revertToEmbedded: () => {},
+    restoreDefaultChannel: async () => {},
     isCurrentlyRunningPullRequestDeployment: false,
+    isCurrentlyRunningNonStandardChannel: false,
     currentChannel: 'web-build',
+    defaultChannel: 'web-build',
     pending: false,
   }
 }

src/screens/Settings/Settings.tsx

@@ -393,7 +393,7 @@ function DevOptions() {
   const {mutate: deleteChatDeclarationRecord} = useDeleteActorDeclaration()
   const {
     tryApplyUpdate,
-    revertToEmbedded,
+    restoreDefaultChannel,
     isCurrentlyRunningPullRequestDeployment,
     currentChannel,
   } = useApplyPullRequestOTAUpdate()
@@ -520,7 +520,7 @@ function DevOptions() {
       ) : null}
       {IS_NATIVE && isCurrentlyRunningPullRequestDeployment ? (
         <SettingsList.PressableItem
-          onPress={() => void revertToEmbedded()}
+          onPress={() => void restoreDefaultChannel()}
           label={l`Unapply Pull Request`}>
           <SettingsList.ItemText>
             <Trans>Unapply Pull Request {currentChannel}</Trans>

src/view/shell/Drawer.tsx

@@ -62,6 +62,7 @@ import {
   UserCircle_Stroke2_Corner0_Rounded as UserCircle,
 } from '#/components/icons/UserCircle'
 import {InlineLinkText} from '#/components/Link'
+import {OTAChannelNotice} from '#/components/OTAChannelNotice'
 import {ProfileBadges} from '#/components/ProfileBadges'
 import {Text} from '#/components/Typography'
 import {useAnalytics} from '#/analytics'
@@ -343,6 +344,8 @@ let DrawerContent = ({}: React.PropsWithoutRef<{}>): React.ReactNode => {
             </View>
           )}
 
+          <OTAChannelNotice style={[a.mt_lg]} />
+
           <Divider style={[a.mt_xl, a.mb_sm]} />
         </View>