[Chat] Add embeds to the optimistic message (#10564)

src/state/messages/convo/agent.ts

@@ -1,4 +1,6 @@
 import {
+  type $Typed,
+  type AppBskyEmbedRecord,
   type AtpAgent,
   type ChatBskyActorDefs,
   ChatBskyConvoDefs,
@@ -104,7 +106,11 @@ export class Convo {
   > = new Map()
   private pendingMessages: Map<
     string,
-    {id: string; message: ChatBskyConvoSendMessage.InputSchema['message']}
+    {
+      id: string
+      message: ChatBskyConvoSendMessage.InputSchema['message']
+      optimisticEmbedView?: $Typed<AppBskyEmbedRecord.View>
+    }
   > = new Map()
   private deletedMessages: Set<string> = new Set()
   private relatedProfiles: Map<string, ChatBskyActorDefs.ProfileViewBasic> =
@@ -934,7 +940,10 @@ export class Convo {
 
   private pendingMessageFailure: 'recoverable' | 'unrecoverable' | null = null
 
-  sendMessage(message: ChatBskyConvoSendMessage.InputSchema['message']) {
+  sendMessage(
+    message: ChatBskyConvoSendMessage.InputSchema['message'],
+    optimisticEmbedView?: $Typed<AppBskyEmbedRecord.View>,
+  ) {
     // Ignore empty messages for now since they have no other purpose atm
     if (!message.text.trim() && !message.embed) return
 
@@ -946,6 +955,7 @@ export class Convo {
     this.pendingMessages.set(tempId, {
       id: tempId,
       message,
+      optimisticEmbedView,
     })
     if (this.convo?.view.status === 'request') {
       this.updateConvo({
@@ -1292,7 +1302,7 @@ export class Convo {
         key: m.id,
         message: {
           ...m.message,
-          embed: undefined,
+          embed: m.optimisticEmbedView,
           $type: 'chat.bsky.convo.defs#messageView',
           id: nanoid(),
           rev: '__fake__',

src/state/messages/convo/types.ts

@@ -1,4 +1,6 @@
 import {
+  type $Typed,
+  type AppBskyEmbedRecord,
   type BskyAgent,
   type ChatBskyActorDefs,
   type ChatBskyConvoDefs,
@@ -106,6 +108,7 @@ export type ConvoItem =
 type DeleteMessage = (messageId: string) => Promise<void>
 type SendMessage = (
   message: ChatBskyConvoSendMessage.InputSchema['message'],
+  optimisticEmbedView: $Typed<AppBskyEmbedRecord.View> | undefined,
 ) => void
 type FetchMessageHistory = () => Promise<void>
 type MarkConvoAccepted = () => void