Add header to group clip clops (#10254)

Co-authored-by: Samuel Newman <mozzius@protonmail.com>

src/state/messages/convo/agent.ts

@@ -153,6 +153,8 @@ export class Convo {
           sender: this.sender,
           recipients: this.recipients,
           isFetchingHistory: this.isFetchingHistory,
+          // Explicit null check since the value is initially undefined.
+          hasAllHistory: this.oldestRev === null,
           deleteMessage: undefined,
           sendMessage: undefined,
           fetchMessageHistory: undefined,
@@ -176,6 +178,8 @@ export class Convo {
           sender: this.sender!,
           recipients: this.recipients!,
           isFetchingHistory: this.isFetchingHistory,
+          // Explicit null check since the value is initially undefined.
+          hasAllHistory: this.oldestRev === null,
           deleteMessage: this.deleteMessage,
           sendMessage: this.sendMessage,
           fetchMessageHistory: this.fetchMessageHistory,
@@ -196,6 +200,7 @@ export class Convo {
           sender: undefined,
           recipients: undefined,
           isFetchingHistory: false,
+          hasAllHistory: false,
           deleteMessage: undefined,
           sendMessage: undefined,
           fetchMessageHistory: undefined,
@@ -216,6 +221,8 @@ export class Convo {
           sender: this.sender,
           recipients: this.recipients,
           isFetchingHistory: false,
+          // Explicit null check since the value is initially undefined.
+          hasAllHistory: this.oldestRev === null,
           deleteMessage: undefined,
           sendMessage: undefined,
           fetchMessageHistory: undefined,
@@ -627,6 +634,7 @@ export class Convo {
 
     /*
      * If oldestRev is null, we've fetched all history.
+     * Needs to explicitly check for `null` since this is initially `undefined`.
      */
     if (this.oldestRev === null) return
 
@@ -660,6 +668,14 @@ export class Convo {
 
       this.oldestRev = cursor ?? null
 
+      /*
+       * If the response contained fewer messages than the limit, we know
+       * there are no more pages, regardless of whether a cursor was returned.
+       */
+      if (messages.length < (IS_NATIVE ? 30 : 60)) {
+        this.oldestRev = null
+      }
+
       for (const message of messages) {
         if (
           ChatBskyConvoDefs.isMessageView(message) ||

src/state/messages/convo/types.ts

@@ -156,6 +156,7 @@ export type ConvoStateUninitialized = {
   sender: ChatBskyActorDefs.ProfileViewBasic | undefined
   recipients: ChatBskyActorDefs.ProfileViewBasic[] | undefined
   isFetchingHistory: false
+  hasAllHistory: boolean
   deleteMessage: undefined
   sendMessage: undefined
   fetchMessageHistory: undefined
@@ -174,6 +175,7 @@ export type ConvoStateInitializing = {
   sender: ChatBskyActorDefs.ProfileViewBasic | undefined
   recipients: ChatBskyActorDefs.ProfileViewBasic[] | undefined
   isFetchingHistory: boolean
+  hasAllHistory: boolean
   deleteMessage: undefined
   sendMessage: undefined
   fetchMessageHistory: undefined
@@ -192,6 +194,7 @@ export type ConvoStateReady = {
   sender: ChatBskyActorDefs.ProfileViewBasic
   recipients: ChatBskyActorDefs.ProfileViewBasic[]
   isFetchingHistory: boolean
+  hasAllHistory: boolean
   deleteMessage: DeleteMessage
   sendMessage: SendMessage
   fetchMessageHistory: FetchMessageHistory
@@ -210,6 +213,7 @@ export type ConvoStateBackgrounded = {
   sender: ChatBskyActorDefs.ProfileViewBasic
   recipients: ChatBskyActorDefs.ProfileViewBasic[]
   isFetchingHistory: boolean
+  hasAllHistory: boolean
   deleteMessage: DeleteMessage
   sendMessage: SendMessage
   fetchMessageHistory: FetchMessageHistory
@@ -228,6 +232,7 @@ export type ConvoStateSuspended = {
   sender: ChatBskyActorDefs.ProfileViewBasic
   recipients: ChatBskyActorDefs.ProfileViewBasic[]
   isFetchingHistory: boolean
+  hasAllHistory: boolean
   deleteMessage: DeleteMessage
   sendMessage: SendMessage
   fetchMessageHistory: FetchMessageHistory
@@ -246,6 +251,7 @@ export type ConvoStateError = {
   sender: undefined
   recipients: undefined
   isFetchingHistory: false
+  hasAllHistory: false
   deleteMessage: undefined
   sendMessage: undefined
   fetchMessageHistory: undefined
@@ -264,6 +270,7 @@ export type ConvoStateDisabled = {
   sender: ChatBskyActorDefs.ProfileViewBasic
   recipients: ChatBskyActorDefs.ProfileViewBasic[]
   isFetchingHistory: boolean
+  hasAllHistory: boolean
   deleteMessage: DeleteMessage
   sendMessage: SendMessage
   fetchMessageHistory: FetchMessageHistory