get initial convo state from cache

src/components/dms/ConvoMenu.tsx

@@ -73,13 +73,14 @@ let ConvoMenu = ({
   const isBlocking = userBlock || !!listBlocks.length
   const isDeletedAccount = profile.handle === 'missing.invalid'
 
-  const {data: convo} = useConvoQuery(initialConvo)
+  const convoId = initialConvo.id
+  const {data: convo} = useConvoQuery(convoId, initialConvo)
 
   const onNavigateToProfile = useCallback(() => {
     navigation.navigate('Profile', {name: profile.did})
   }, [navigation, profile.did])
 
-  const {mutate: muteConvo} = useMuteConvo(convo?.id, {
+  const {mutate: muteConvo} = useMuteConvo(convoId, {
     onSuccess: data => {
       if (data.convo.muted) {
         Toast.show(_(msg`Chat muted`))
@@ -152,11 +153,7 @@ let ConvoMenu = ({
               {showMarkAsRead && (
                 <Menu.Item
                   label={_(msg`Mark as read`)}
-                  onPress={() =>
-                    markAsRead({
-                      convoId: convo?.id,
-                    })
-                  }>
+                  onPress={() => markAsRead({convoId})}>
                   <Menu.ItemText>
                     <Trans>Mark as read</Trans>
                   </Menu.ItemText>
@@ -222,15 +219,15 @@ let ConvoMenu = ({
 
       <LeaveConvoPrompt
         control={leaveConvoControl}
-        convoId={convo.id}
+        convoId={convoId}
         currentScreen={currentScreen}
       />
       {latestReportableMessage ? (
         <ReportDialog
           currentScreen={currentScreen}
           params={{
             type: 'convoMessage',
-            convoId: convo.id,
+            convoId: convoId,
             message: latestReportableMessage,
           }}
           control={reportControl}

src/components/dms/MessagesListBlockedFooter.tsx

@@ -1,6 +1,6 @@
 import React from 'react'
 import {View} from 'react-native'
-import {AppBskyActorDefs, ModerationCause} from '@atproto/api'
+import {AppBskyActorDefs, ModerationDecision} from '@atproto/api'
 import {msg, Trans} from '@lingui/macro'
 import {useLingui} from '@lingui/react'
 
@@ -19,15 +19,12 @@ export function MessagesListBlockedFooter({
   recipient: initialRecipient,
   convoId,
   hasMessages,
-  blockInfo,
+  moderation,
 }: {
   recipient: AppBskyActorDefs.ProfileViewBasic
   convoId: string
   hasMessages: boolean
-  blockInfo: {
-    listBlocks: ModerationCause[]
-    userBlock: ModerationCause | undefined
-  }
+  moderation: ModerationDecision
 }) {
   const t = useTheme()
   const {gtMobile} = useBreakpoints()
@@ -39,7 +36,17 @@ export function MessagesListBlockedFooter({
   const reportControl = useDialogControl()
   const blockedByListControl = useDialogControl()
 
-  const {listBlocks, userBlock} = blockInfo
+  const {listBlocks, userBlock} = React.useMemo(() => {
+    const modui = moderation.ui('profileView')
+    const blocks = modui.alerts.filter(alert => alert.type === 'blocking')
+    const listBlocks = blocks.filter(alert => alert.source.type === 'list')
+    const userBlock = blocks.find(alert => alert.source.type === 'user')
+    return {
+      listBlocks,
+      userBlock,
+    }
+  }, [moderation])
+
   const isBlocking = !!userBlock || !!listBlocks.length
 
   const onUnblockPress = React.useCallback(() => {

src/components/dms/MessagesListHeader.tsx

@@ -30,20 +30,27 @@ const PFP_SIZE = isWeb ? 40 : 34
 export let MessagesListHeader = ({
   profile,
   moderation,
-  blockInfo,
 }: {
   profile?: AppBskyActorDefs.ProfileViewBasic
   moderation?: ModerationDecision
-  blockInfo?: {
-    listBlocks: ModerationCause[]
-    userBlock?: ModerationCause
-  }
 }): React.ReactNode => {
   const t = useTheme()
   const {_} = useLingui()
   const {gtTablet} = useBreakpoints()
   const navigation = useNavigation<NavigationProp>()
 
+  const blockInfo = React.useMemo(() => {
+    if (!moderation) return
+    const modui = moderation.ui('profileView')
+    const blocks = modui.alerts.filter(alert => alert.type === 'blocking')
+    const listBlocks = blocks.filter(alert => alert.source.type === 'list')
+    const userBlock = blocks.find(alert => alert.source.type === 'user')
+    return {
+      listBlocks,
+      userBlock,
+    }
+  }, [moderation])
+
   const onPressBack = useCallback(() => {
     if (isWeb) {
       navigation.replace('Messages', {})

src/screens/Messages/ChatList.tsx

@@ -236,7 +236,6 @@ export function MessagesScreen({navigation, route}: Props) {
         onEndReachedThreshold={isNative ? 1.5 : 0}
         initialNumToRender={initialNumToRender}
         windowSize={11}
-        // @ts-ignore our .web version only -sfn
         desktopFixedHeight
         sideBorders={false}
       />

src/screens/Messages/Conversation.tsx

@@ -1,6 +1,10 @@
 import React, {useCallback} from 'react'
 import {View} from 'react-native'
-import {AppBskyActorDefs, moderateProfile, ModerationOpts} from '@atproto/api'
+import {
+  AppBskyActorDefs,
+  moderateProfile,
+  ModerationDecision,
+} from '@atproto/api'
 import {msg} from '@lingui/macro'
 import {useLingui} from '@lingui/react'
 import {useFocusEffect, useNavigation} from '@react-navigation/native'
@@ -76,6 +80,11 @@ function Inner() {
     did: convoState.recipients?.[0].did,
   })
 
+  const moderation = React.useMemo(() => {
+    if (!recipient || !moderationOpts) return null
+    return moderateProfile(recipient, moderationOpts)
+  }, [recipient, moderationOpts])
+
   // Because we want to give the list a chance to asynchronously scroll to the end before it is visible to the user,
   // we use `hasScrolled` to determine when to render. With that said however, there is a chance that the chat will be
   // empty. So, we also check for that possible state as well and render once we can.
@@ -110,11 +119,16 @@ function Inner() {
 
   return (
     <Layout.Center style={[a.flex_1]}>
-      {!readyToShow && <MessagesListHeader />}
+      {!readyToShow &&
+        (moderation ? (
+          <MessagesListHeader moderation={moderation} profile={recipient} />
+        ) : (
+          <MessagesListHeader />
+        ))}
       <View style={[a.flex_1]}>
-        {moderationOpts && recipient ? (
+        {moderation && recipient ? (
           <InnerReady
-            moderationOpts={moderationOpts}
+            moderation={moderation}
             recipient={recipient}
             hasScrolled={hasScrolled}
             setHasScrolled={setHasScrolled}
@@ -144,12 +158,12 @@ function Inner() {
 }
 
 function InnerReady({
-  moderationOpts,
+  moderation,
   recipient: recipientUnshadowed,
   hasScrolled,
   setHasScrolled,
 }: {
-  moderationOpts: ModerationOpts
+  moderation: ModerationDecision
   recipient: AppBskyActorDefs.ProfileViewBasic
   hasScrolled: boolean
   setHasScrolled: React.Dispatch<React.SetStateAction<boolean>>
@@ -161,21 +175,6 @@ function InnerReady({
   const verifyEmailControl = useDialogControl()
   const {needsEmailVerification} = useEmail()
 
-  const moderation = React.useMemo(() => {
-    return moderateProfile(recipient, moderationOpts)
-  }, [recipient, moderationOpts])
-
-  const blockInfo = React.useMemo(() => {
-    const modui = moderation.ui('profileView')
-    const blocks = modui.alerts.filter(alert => alert.type === 'blocking')
-    const listBlocks = blocks.filter(alert => alert.source.type === 'list')
-    const userBlock = blocks.find(alert => alert.source.type === 'user')
-    return {
-      listBlocks,
-      userBlock,
-    }
-  }, [moderation])
-
   React.useEffect(() => {
     if (needsEmailVerification) {
       verifyEmailControl.open()
@@ -184,11 +183,7 @@ function InnerReady({
 
   return (
     <>
-      <MessagesListHeader
-        profile={recipient}
-        moderation={moderation}
-        blockInfo={blockInfo}
-      />
+      <MessagesListHeader profile={recipient} moderation={moderation} />
       {isConvoActive(convoState) && (
         <MessagesList
           hasScrolled={hasScrolled}
@@ -199,7 +194,7 @@ function InnerReady({
               recipient={recipient}
               convoId={convoState.convo.id}
               hasMessages={convoState.items.length > 0}
-              blockInfo={blockInfo}
+              moderation={moderation}
             />
           }
         />

src/screens/Messages/components/ChatListItem.tsx

@@ -9,6 +9,7 @@ import {
 } from '@atproto/api'
 import {msg} from '@lingui/macro'
 import {useLingui} from '@lingui/react'
+import {useQueryClient} from '@tanstack/react-query'
 
 import {GestureActionView} from '#/lib/custom-animations/GestureActionView'
 import {useHaptics} from '#/lib/haptics'
@@ -23,7 +24,11 @@ import {
 import {isNative} from '#/platform/detection'
 import {useProfileShadow} from '#/state/cache/profile-shadow'
 import {useModerationOpts} from '#/state/preferences/moderation-opts'
-import {useMarkAsReadMutation} from '#/state/queries/messages/conversation'
+import {
+  precacheConvoQuery,
+  useMarkAsReadMutation,
+} from '#/state/queries/messages/conversation'
+import {precacheProfile} from '#/state/queries/profile'
 import {useSession} from '#/state/session'
 import {TimeElapsed} from '#/view/com/util/TimeElapsed'
 import {PreviewableUserAvatar} from '#/view/com/util/UserAvatar'
@@ -89,6 +94,7 @@ function ChatListItemReady({
     [profile, moderationOpts],
   )
   const playHaptic = useHaptics()
+  const queryClient = useQueryClient()
   const isUnread = convo.unreadCount > 0
 
   const blockInfo = useMemo(() => {
@@ -198,6 +204,8 @@ function ChatListItemReady({
 
   const onPress = useCallback(
     (e: GestureResponderEvent) => {
+      precacheProfile(queryClient, profile)
+      precacheConvoQuery(queryClient, convo)
       decrementBadgeCount(convo.unreadCount)
       if (isDeletedAccount) {
         e.preventDefault()
@@ -207,7 +215,7 @@ function ChatListItemReady({
         logEvent('chat:open', {logContext: 'ChatsList'})
       }
     },
-    [convo.unreadCount, isDeletedAccount, menuControl],
+    [isDeletedAccount, menuControl, queryClient, profile, convo],
   )
 
   const onLongPress = useCallback(() => {

src/state/messages/convo/agent.ts

@@ -81,7 +81,7 @@ export class Convo {
   convoId: string
   convo: ChatBskyConvoDefs.ConvoView | undefined
   sender: AppBskyActorDefs.ProfileViewBasic | undefined
-  recipients: AppBskyActorDefs.ProfileViewBasic[] | undefined = undefined
+  recipients: AppBskyActorDefs.ProfileViewBasic[] | undefined
   snapshot: ConvoState | undefined
 
   constructor(params: ConvoParams) {
@@ -91,6 +91,10 @@ export class Convo {
     this.events = params.events
     this.senderUserDid = params.agent.session?.did!
 
+    if (params.placeholderData) {
+      this.setupPlaceholderData(params.placeholderData)
+    }
+
     this.subscribe = this.subscribe.bind(this)
     this.getSnapshot = this.getSnapshot.bind(this)
     this.sendMessage = this.sendMessage.bind(this)
@@ -131,10 +135,10 @@ export class Convo {
         return {
           status: ConvoStatus.Initializing,
           items: [],
-          convo: undefined,
+          convo: this.convo,
           error: undefined,
-          sender: undefined,
-          recipients: undefined,
+          sender: this.sender,
+          recipients: this.recipients,
           isFetchingHistory: this.isFetchingHistory,
           deleteMessage: undefined,
           sendMessage: undefined,
@@ -176,10 +180,10 @@ export class Convo {
         return {
           status: ConvoStatus.Uninitialized,
           items: [],
-          convo: undefined,
+          convo: this.convo,
           error: undefined,
-          sender: undefined,
-          recipients: undefined,
+          sender: this.sender,
+          recipients: this.recipients,
           isFetchingHistory: false,
           deleteMessage: undefined,
           sendMessage: undefined,
@@ -424,6 +428,20 @@ export class Convo {
     }
   }
 
+  /**
+   * Initialises the convo with placeholder data, if provided. We still refetch it before rendering the convo,
+   * but this allows us to render the convo header immediately.
+   */
+  private setupPlaceholderData(
+    data: NonNullable<ConvoParams['placeholderData']>,
+  ) {
+    this.convo = data.convo
+    this.sender = data.convo.members.find(m => m.did === this.senderUserDid)
+    this.recipients = data.convo.members.filter(
+      m => m.did !== this.senderUserDid,
+    )
+  }
+
   private async setup() {
     try {
       const {convo, sender, recipients} = await this.fetchConvo()

src/state/messages/convo/index.tsx

@@ -1,4 +1,5 @@
 import React, {useContext, useState, useSyncExternalStore} from 'react'
+import {ChatBskyConvoDefs} from '@atproto/api'
 import {useFocusEffect} from '@react-navigation/native'
 import {useQueryClient} from '@tanstack/react-query'
 
@@ -14,7 +15,10 @@ import {
 } from '#/state/messages/convo/types'
 import {isConvoActive} from '#/state/messages/convo/util'
 import {useMessagesEventBus} from '#/state/messages/events'
-import {useMarkAsReadMutation} from '#/state/queries/messages/conversation'
+import {
+  RQKEY as getConvoKey,
+  useMarkAsReadMutation,
+} from '#/state/queries/messages/conversation'
 import {RQKEY as ListConvosQueryKey} from '#/state/queries/messages/list-conversations'
 import {RQKEY as createProfileQueryKey} from '#/state/queries/profile'
 import {useAgent} from '#/state/session'
@@ -60,14 +64,17 @@ export function ConvoProvider({
   const queryClient = useQueryClient()
   const agent = useAgent()
   const events = useMessagesEventBus()
-  const [convo] = useState(
-    () =>
-      new Convo({
-        convoId,
-        agent,
-        events,
-      }),
-  )
+  const [convo] = useState(() => {
+    const placeholder = queryClient.getQueryData<ChatBskyConvoDefs.ConvoView>(
+      getConvoKey(convoId),
+    )
+    return new Convo({
+      convoId,
+      agent,
+      events,
+      placeholderData: placeholder ? {convo: placeholder} : undefined,
+    })
+  })
   const service = useSyncExternalStore(convo.subscribe, convo.getSnapshot)
   const {mutate: markAsRead} = useMarkAsReadMutation()