[🐴] Integrate global event bus (#3904)

* Conditionally run global event bus

* Add current convo id context, bundle providers

src/App.native.tsx

@@ -16,6 +16,7 @@ import {useQueryClient} from '@tanstack/react-query'
 
 import {Provider as StatsigProvider} from '#/lib/statsig/statsig'
 import {logger} from '#/logger'
+import {MessagesProvider} from '#/state/messages'
 import {init as initPersistedState} from '#/state/persisted'
 import {Provider as LabelDefsProvider} from '#/state/preferences/label-defs'
 import {Provider as ModerationOptsProvider} from '#/state/preferences/moderation-opts'
@@ -97,6 +98,7 @@ function InnerApp() {
                 <QueryProvider currentDid={currentAccount?.did}>
                   <PushNotificationsListener>
                     <StatsigProvider>
+                      <MessagesProvider>
                         {/* LabelDefsProvider MUST come before ModerationOptsProvider */}
                         <LabelDefsProvider>
                           <ModerationOptsProvider>
@@ -112,6 +114,7 @@ function InnerApp() {
                             </LoggedOutViewProvider>
                           </ModerationOptsProvider>
                         </LabelDefsProvider>
+                      </MessagesProvider>
                     </StatsigProvider>
                   </PushNotificationsListener>
                 </QueryProvider>

src/App.web.tsx

@@ -9,6 +9,7 @@ import {useLingui} from '@lingui/react'
 
 import {Provider as StatsigProvider} from '#/lib/statsig/statsig'
 import {logger} from '#/logger'
+import {MessagesProvider} from '#/state/messages'
 import {init as initPersistedState} from '#/state/persisted'
 import {Provider as LabelDefsProvider} from '#/state/preferences/label-defs'
 import {Provider as ModerationOptsProvider} from '#/state/preferences/moderation-opts'
@@ -84,6 +85,7 @@ function InnerApp() {
             key={currentAccount?.did}>
             <QueryProvider currentDid={currentAccount?.did}>
               <StatsigProvider>
+                <MessagesProvider>
                   {/* LabelDefsProvider MUST come before ModerationOptsProvider */}
                   <LabelDefsProvider>
                     <ModerationOptsProvider>
@@ -98,6 +100,7 @@ function InnerApp() {
                       </LoggedOutViewProvider>
                     </ModerationOptsProvider>
                   </LabelDefsProvider>
+                </MessagesProvider>
               </StatsigProvider>
             </QueryProvider>
           </React.Fragment>

src/screens/Messages/Conversation/index.tsx

@@ -5,11 +5,12 @@ import {AppBskyActorDefs} from '@atproto/api'
 import {FontAwesomeIcon} from '@fortawesome/react-native-fontawesome'
 import {msg} from '@lingui/macro'
 import {useLingui} from '@lingui/react'
-import {useNavigation} from '@react-navigation/native'
+import {useFocusEffect, useNavigation} from '@react-navigation/native'
 import {NativeStackScreenProps} from '@react-navigation/native-stack'
 
 import {CommonNavigatorParams, NavigationProp} from '#/lib/routes/types'
 import {useGate} from '#/lib/statsig/statsig'
+import {useCurrentConvoId} from '#/state/messages/current-convo-id'
 import {BACK_HITSLOP} from 'lib/constants'
 import {isWeb} from 'platform/detection'
 import {ChatProvider, useChat} from 'state/messages'
@@ -31,6 +32,16 @@ type Props = NativeStackScreenProps<
 export function MessagesConversationScreen({route}: Props) {
   const gate = useGate()
   const convoId = route.params.conversation
+  const {setCurrentConvoId} = useCurrentConvoId()
+
+  useFocusEffect(
+    useCallback(() => {
+      setCurrentConvoId(convoId)
+      return () => {
+        setCurrentConvoId(undefined)
+      }
+    }, [convoId, setCurrentConvoId]),
+  )
 
   if (!gate('dms')) return <ClipClopGate />
 

src/state/messages/current-convo-id.tsx

@@ -0,0 +1,38 @@
+import React from 'react'
+
+const CurrentConvoIdContext = React.createContext<{
+  currentConvoId: string | undefined
+  setCurrentConvoId: (convoId: string | undefined) => void
+}>({
+  currentConvoId: undefined,
+  setCurrentConvoId: () => {},
+})
+
+export function useCurrentConvoId() {
+  const ctx = React.useContext(CurrentConvoIdContext)
+  if (!ctx) {
+    throw new Error(
+      'useCurrentConvoId must be used within a CurrentConvoIdProvider',
+    )
+  }
+  return ctx
+}
+
+export function CurrentConvoIdProvider({
+  children,
+}: {
+  children: React.ReactNode
+}) {
+  const [currentConvoId, setCurrentConvoId] = React.useState<
+    string | undefined
+  >()
+  const ctx = React.useMemo(
+    () => ({currentConvoId, setCurrentConvoId}),
+    [currentConvoId],
+  )
+  return (
+    <CurrentConvoIdContext.Provider value={ctx}>
+      {children}
+    </CurrentConvoIdContext.Provider>
+  )
+}

src/state/messages/events/index.tsx

@@ -2,6 +2,7 @@ import React from 'react'
 import {AppState} from 'react-native'
 import {BskyAgent} from '@atproto-labs/api'
 
+import {useGate} from '#/lib/statsig/statsig'
 import {isWeb} from '#/platform/detection'
 import {MessagesEventBus} from '#/state/messages/events/agent'
 import {MessagesEventBusState} from '#/state/messages/events/types'
@@ -20,7 +21,7 @@ export function useMessagesEventBus() {
   return ctx
 }
 
-export function MessagesEventBusProvider({
+export function Temp_MessagesEventBusProvider({
   children,
 }: {
   children: React.ReactNode
@@ -65,3 +66,18 @@ export function MessagesEventBusProvider({
     </MessagesEventBusContext.Provider>
   )
 }
+
+export function MessagesEventBusProvider({
+  children,
+}: {
+  children: React.ReactNode
+}) {
+  const gate = useGate()
+  const {serviceUrl} = useDmServiceUrlStorage()
+  if (gate('dms') && serviceUrl) {
+    return (
+      <Temp_MessagesEventBusProvider>{children}</Temp_MessagesEventBusProvider>
+    )
+  }
+  return children
+}

src/state/messages/index.tsx

@@ -4,6 +4,8 @@ import {BskyAgent} from '@atproto-labs/api'
 import {useFocusEffect, useIsFocused} from '@react-navigation/native'
 
 import {Convo, ConvoParams, ConvoState} from '#/state/messages/convo'
+import {CurrentConvoIdProvider} from '#/state/messages/current-convo-id'
+import {MessagesEventBusProvider} from '#/state/messages/events'
 import {useAgent} from '#/state/session'
 import {useDmServiceUrlStorage} from '#/screens/Messages/Temp/useDmServiceUrlStorage'
 
@@ -66,3 +68,11 @@ export function ChatProvider({
 
   return <ChatContext.Provider value={service}>{children}</ChatContext.Provider>
 }
+
+export function MessagesProvider({children}: {children: React.ReactNode}) {
+  return (
+    <CurrentConvoIdProvider>
+      <MessagesEventBusProvider>{children}</MessagesEventBusProvider>
+    </CurrentConvoIdProvider>
+  )
+}