From 611df4ed74699241ee8ff26279e23c30713a0024 Mon Sep 17 00:00:00 2001
From: Dotta <bippadotta@protonmail.com>
Date: Wed, 1 Jul 2026 23:00:30 +0000
Subject: [PATCH] PAP-12316 add issue chat thread presets

---
 ui/src/components/IssueChatThread.tsx         | 187 ++++++++++--------
 ui/src/components/SelectedAgentChat.test.tsx  |  10 +-
 ui/src/components/SelectedAgentChat.tsx       |   5 +-
 ui/src/components/chat-thread-presets.test.ts |  69 +++++++
 ui/src/components/chat-thread-presets.ts      | 116 +++++++++++
 5 files changed, 298 insertions(+), 89 deletions(-)
 create mode 100644 ui/src/components/chat-thread-presets.test.ts
 create mode 100644 ui/src/components/chat-thread-presets.ts

diff --git a/ui/src/components/IssueChatThread.tsx b/ui/src/components/IssueChatThread.tsx
index d778af0599a..0bf2e030592 100644
--- a/ui/src/components/IssueChatThread.tsx
+++ b/ui/src/components/IssueChatThread.tsx
@@ -174,6 +174,10 @@ import { IssueRecoveryActionCard, type RecoveryResolveOutcome } from "./IssueRec
 import { SourceTrustBadge } from "./SourceTrustBadge";
 import { AnimatedPaperclipIcon } from "./AnimatedPaperclipIcon";
 import { BoardChatBackgroundWorkCard } from "./BoardChatBackgroundWorkCard";
+import {
+  resolveIssueChatThreadPreset,
+  type IssueChatThreadPresetName,
+} from "./chat-thread-presets";
 
 interface IssueChatMessageContext {
   feedbackDataSharingPreference: FeedbackDataSharingPreference;
@@ -356,6 +360,7 @@ interface IssueChatComposerProps {
 }
 
 interface IssueChatThreadProps {
+  preset?: IssueChatThreadPresetName;
   comments: IssueChatComment[];
   interactions?: IssueThreadInteraction[];
   feedbackVotes?: FeedbackVote[];
@@ -415,6 +420,7 @@ interface IssueChatThreadProps {
   onWorkModeChange?: (workMode: IssueWorkMode) => Promise<void> | void;
   showComposer?: boolean;
   showJumpToLatest?: boolean;
+  showBackgroundWorkChildren?: boolean;
   autoScrollToLatestOnInitialLoad?: boolean;
   emptyMessage?: string;
   emptyState?: ReactNode;
@@ -4118,82 +4124,94 @@ const IssueChatComposer = forwardRef<IssueChatComposerHandle, IssueChatComposerP
   );
 });
 
-export function IssueChatThread({
-  comments,
-  interactions = [],
-  feedbackVotes = [],
-  feedbackDataSharingPreference = "prompt",
-  feedbackTermsUrl = null,
-  linkedRuns = [],
-  timelineEvents = [],
-  liveRuns = [],
-  activeRun = null,
-  issueId = null,
-  blockedBy = [],
-  backgroundWorkChildren = [],
-  blockerAttention = null,
-  successfulRunHandoff = null,
-  scheduledRetry = null,
-  recoveryAction = null,
-  onResolveRecoveryAction,
-  canFalsePositiveRecoveryAction = false,
-  legacyRecoverySourceIssue = null,
-  companyId,
-  projectId,
-  issueStatus,
-  agentMap,
-  currentUserId,
-  userLabelMap,
-  userProfileMap,
-  onVote,
-  onAdd,
-  onCancelRun,
-  onStopRun,
-  stopRunLabel,
-  stoppingRunLabel,
-  stopRunVariant,
-  runFinalizationActions,
-  imageUploadHandler,
-  onAttachImage,
-  draftKey,
-  enableReassign = false,
-  reassignOptions = [],
-  currentAssigneeValue = "",
-  suggestedAssigneeValue,
-  mentions = [],
-  composerDisabledReason = null,
-  composerHint = null,
-  suppressIssueStatusNotices = false,
-  showComposer = true,
-  showJumpToLatest,
-  autoScrollToLatestOnInitialLoad = true,
-  emptyMessage,
-  emptyState,
-  footer,
-  variant = "full",
-  enableLiveTranscriptPolling = true,
-  transcriptsByRunId,
-  hasOutputForRun: hasOutputForRunOverride,
-  includeSucceededRunsWithoutOutput = false,
-  onInterruptQueued,
-  onCancelQueued,
-  onDeleteComment,
-  interruptingQueuedRunId = null,
-  stoppingRunId = null,
-  onImageClick,
-  onAcceptInteraction,
-  onRejectInteraction,
-  onSubmitInteractionAnswers,
-  onCancelInteraction,
-  composerRef,
-  issueWorkMode,
-  onWorkModeChange,
-  onRefreshLatestComments,
-  assigneeUserId = null,
-  onResumeFromBacklog,
-  resumeFromBacklogPending = false,
-  externalReferences,
-}: IssueChatThreadProps) {
+export function IssueChatThread(props: IssueChatThreadProps) {
+  const presetConfig = resolveIssueChatThreadPreset(props.preset, {
+    variant: props.variant,
+    showComposer: props.showComposer,
+    showJumpToLatest: props.showJumpToLatest,
+    showBackgroundWorkChildren: props.showBackgroundWorkChildren,
+    autoScrollToLatestOnInitialLoad: props.autoScrollToLatestOnInitialLoad,
+    emptyMessage: props.emptyMessage,
+    suppressIssueStatusNotices: props.suppressIssueStatusNotices,
+    enableReassign: props.enableReassign,
+  });
+  const {
+    comments,
+    interactions = [],
+    feedbackVotes = [],
+    feedbackDataSharingPreference = "prompt",
+    feedbackTermsUrl = null,
+    linkedRuns = [],
+    timelineEvents = [],
+    liveRuns = [],
+    activeRun = null,
+    issueId = null,
+    blockedBy = [],
+    backgroundWorkChildren = [],
+    blockerAttention = null,
+    successfulRunHandoff = null,
+    scheduledRetry = null,
+    recoveryAction = null,
+    onResolveRecoveryAction,
+    canFalsePositiveRecoveryAction = false,
+    legacyRecoverySourceIssue = null,
+    companyId,
+    projectId,
+    issueStatus,
+    agentMap,
+    currentUserId,
+    userLabelMap,
+    userProfileMap,
+    onVote,
+    onAdd,
+    onCancelRun,
+    onStopRun,
+    stopRunLabel,
+    stoppingRunLabel,
+    stopRunVariant,
+    runFinalizationActions,
+    imageUploadHandler,
+    onAttachImage,
+    draftKey,
+    enableReassign = presetConfig.enableReassign,
+    reassignOptions = [],
+    currentAssigneeValue = "",
+    suggestedAssigneeValue,
+    mentions = [],
+    composerDisabledReason = null,
+    composerHint = null,
+    suppressIssueStatusNotices = presetConfig.suppressIssueStatusNotices,
+    showComposer = presetConfig.showComposer,
+    showJumpToLatest = presetConfig.showJumpToLatest,
+    showBackgroundWorkChildren = presetConfig.showBackgroundWorkChildren,
+    autoScrollToLatestOnInitialLoad = presetConfig.autoScrollToLatestOnInitialLoad,
+    emptyMessage = presetConfig.emptyMessage,
+    emptyState,
+    footer,
+    variant = presetConfig.variant,
+    enableLiveTranscriptPolling = true,
+    transcriptsByRunId,
+    hasOutputForRun: hasOutputForRunOverride,
+    includeSucceededRunsWithoutOutput = false,
+    onInterruptQueued,
+    onCancelQueued,
+    onDeleteComment,
+    interruptingQueuedRunId = null,
+    stoppingRunId = null,
+    onImageClick,
+    onAcceptInteraction,
+    onRejectInteraction,
+    onSubmitInteractionAnswers,
+    onCancelInteraction,
+    composerRef,
+    issueWorkMode,
+    onWorkModeChange,
+    onRefreshLatestComments,
+    assigneeUserId = null,
+    onResumeFromBacklog,
+    resumeFromBacklogPending = false,
+    externalReferences,
+  } = props;
   const location = useLocation();
   const lastScrolledHashRef = useRef<string | null>(null);
   const virtualizedThreadRef = useRef<VirtualizedIssueChatThreadListHandle | null>(null);
@@ -4759,11 +4777,8 @@ export function IssueChatThread({
     ],
   );
 
-  const resolvedShowJumpToLatest = showJumpToLatest ?? variant === "full";
-  const resolvedEmptyMessage = emptyMessage
-    ?? (variant === "embedded"
-      ? "No run output yet."
-      : "This task conversation is empty. Start with a message below.");
+  const resolvedShowJumpToLatest = showJumpToLatest;
+  const resolvedEmptyMessage = emptyMessage;
   const previousErrorBoundaryMessagesRef = useRef<readonly ThreadMessage[] | null>(null);
   const errorBoundaryResetVersionRef = useRef(0);
   if (previousErrorBoundaryMessagesRef.current !== messages) {
@@ -4838,10 +4853,12 @@ export function IssueChatThread({
             )}
               {showComposer ? (
                 <div data-testid="issue-chat-thread-notices" className="space-y-2">
-                  <BoardChatBackgroundWorkCard
-                    childrenIssues={backgroundWorkChildren}
-                    agentMap={agentMap}
-                  />
+                  {showBackgroundWorkChildren ? (
+                    <BoardChatBackgroundWorkCard
+                      childrenIssues={backgroundWorkChildren}
+                      agentMap={agentMap}
+                    />
+                  ) : null}
                   {!suppressIssueStatusNotices ? (
                     <>
                       <IssueAssignedBacklogNotice
diff --git a/ui/src/components/SelectedAgentChat.test.tsx b/ui/src/components/SelectedAgentChat.test.tsx
index bcf73587b65..9f5a838fa6a 100644
--- a/ui/src/components/SelectedAgentChat.test.tsx
+++ b/ui/src/components/SelectedAgentChat.test.tsx
@@ -15,6 +15,7 @@ import type { IssueChatComment } from "../lib/issue-chat-messages";
 // switcher, error/loading states, send pass-through) is what we assert.
 vi.mock("./IssueChatThread", () => ({
   IssueChatThread: (props: {
+    preset?: string;
     emptyMessage?: string;
     emptyState?: ReactNode;
     showJumpToLatest?: boolean;
@@ -26,12 +27,15 @@ vi.mock("./IssueChatThread", () => ({
     onAttachImage?: (file: File) => Promise<unknown>;
   }) => (
     <div data-testid="issue-chat-thread">
+      <span data-testid="thread-preset">{props.preset}</span>
       <span data-testid="empty-message">{props.emptyState ? "" : props.emptyMessage}</span>
       <div data-testid="empty-state">{props.emptyState}</div>
-      <span data-testid="jump-to-latest">{String(props.showJumpToLatest)}</span>
+      <span data-testid="jump-to-latest">
+        {String(props.showJumpToLatest ?? (props.preset === "assistant" ? false : true))}
+      </span>
       <span data-testid="background-work-count">{props.backgroundWorkChildren?.length ?? 0}</span>
       <span data-testid="status-notices">
-        {props.suppressIssueStatusNotices ? "suppressed" : "visible"}
+        {(props.suppressIssueStatusNotices ?? props.preset === "assistant") ? "suppressed" : "visible"}
       </span>
       <span data-testid="composer-hint">{props.composerHint}</span>
       <span data-testid="image-upload-enabled">{String(Boolean(props.imageUploadHandler))}</span>
@@ -263,6 +267,8 @@ describe("SelectedAgentChatView", () => {
       "Send Sarah a message to start the conversation.",
     );
     expect(container.querySelector('[data-testid="jump-to-latest"]')?.textContent).toBe("false");
+    expect(container.querySelector('[data-testid="thread-preset"]')?.textContent).toBe("assistant");
+    expect(container.querySelector('[data-testid="status-notices"]')?.textContent).toBe("suppressed");
   });
 
   it("forwards attachment handlers to the shared issue chat composer", () => {
diff --git a/ui/src/components/SelectedAgentChat.tsx b/ui/src/components/SelectedAgentChat.tsx
index ccfb0cda0be..eed7ca54366 100644
--- a/ui/src/components/SelectedAgentChat.tsx
+++ b/ui/src/components/SelectedAgentChat.tsx
@@ -174,7 +174,7 @@ export function SelectedAgentChatView({
   projectId,
   currentUserId,
   backgroundWorkChildren = [],
-  suppressIssueStatusNotices = false,
+  suppressIssueStatusNotices,
   conferenceRoomMode = false,
   companyName = null,
   composerHint = null,
@@ -216,6 +216,7 @@ export function SelectedAgentChatView({
   );
 
   const targetName = targetAgent?.name ?? "Assistant";
+  const threadPreset = conferenceRoomMode ? "assistant" : "task";
   const targetRole = targetAgent ? roleLabels[targetAgent.role] ?? targetAgent.role : null;
   const canSwitch = showAgentSwitcher && invokableAgents.length > 1 && !!onTargetAgentChange;
   const starterPrompts = useMemo(
@@ -333,6 +334,7 @@ export function SelectedAgentChatView({
           className="min-w-0 px-4 pb-4 pt-3"
         >
           <IssueChatThread
+            preset={threadPreset}
             variant="full"
             composerRef={composerRef}
             comments={comments}
@@ -362,7 +364,6 @@ export function SelectedAgentChatView({
             onRejectInteraction={onRejectInteraction}
             onSubmitInteractionAnswers={onSubmitInteractionAnswers}
             onCancelInteraction={onCancelInteraction}
-            showJumpToLatest={!conferenceRoomMode}
           />
         </div>
       )}
diff --git a/ui/src/components/chat-thread-presets.test.ts b/ui/src/components/chat-thread-presets.test.ts
new file mode 100644
index 00000000000..7a94438127f
--- /dev/null
+++ b/ui/src/components/chat-thread-presets.test.ts
@@ -0,0 +1,69 @@
+import { describe, expect, it } from "vitest";
+import { resolveIssueChatThreadPreset } from "./chat-thread-presets";
+
+describe("resolveIssueChatThreadPreset", () => {
+  it("treats an omitted preset exactly like the task preset", () => {
+    expect(resolveIssueChatThreadPreset()).toEqual(resolveIssueChatThreadPreset("task"));
+  });
+
+  it("defaults to the current task thread behavior", () => {
+    expect(resolveIssueChatThreadPreset()).toMatchObject({
+      preset: "task",
+      density: "comfortable",
+      workingIndicator: "expanded",
+      variant: "full",
+      showComposer: true,
+      showJumpToLatest: true,
+      suppressIssueStatusNotices: false,
+      enableReassign: false,
+      showBackgroundWorkChildren: true,
+      showRunFinalizationActions: true,
+      composerSubmitKey: "mod-enter",
+      composerSingleLine: false,
+    });
+  });
+
+  it("keeps task defaults variant-aware", () => {
+    expect(resolveIssueChatThreadPreset("task", { variant: "embedded" })).toMatchObject({
+      variant: "embedded",
+      showJumpToLatest: false,
+      emptyMessage: "No run output yet.",
+    });
+  });
+
+  it("maps the assistant preset to the lightweight chat defaults", () => {
+    expect(resolveIssueChatThreadPreset("assistant")).toMatchObject({
+      preset: "assistant",
+      density: "compact",
+      workingIndicator: "collapsed",
+      variant: "full",
+      showComposer: true,
+      showJumpToLatest: false,
+      suppressIssueStatusNotices: true,
+      enableReassign: false,
+      showBackgroundWorkChildren: false,
+      showRunFinalizationActions: false,
+      composerSubmitKey: "enter",
+      composerSingleLine: true,
+      composerMentions: "optional",
+    });
+  });
+
+  it("lets explicit props override preset defaults", () => {
+    expect(resolveIssueChatThreadPreset("assistant", {
+      showJumpToLatest: true,
+      suppressIssueStatusNotices: false,
+      showBackgroundWorkChildren: true,
+      showComposer: false,
+      enableReassign: true,
+      emptyMessage: "Custom empty state",
+    })).toMatchObject({
+      showJumpToLatest: true,
+      suppressIssueStatusNotices: false,
+      showBackgroundWorkChildren: true,
+      showComposer: false,
+      enableReassign: true,
+      emptyMessage: "Custom empty state",
+    });
+  });
+});
diff --git a/ui/src/components/chat-thread-presets.ts b/ui/src/components/chat-thread-presets.ts
new file mode 100644
index 00000000000..82eba454a3f
--- /dev/null
+++ b/ui/src/components/chat-thread-presets.ts
@@ -0,0 +1,116 @@
+export type IssueChatThreadPresetName = "task" | "assistant";
+
+export type IssueChatThreadVariant = "full" | "embedded";
+
+export type IssueChatThreadDensity = "comfortable" | "compact";
+
+export type IssueChatThreadWorkingIndicator = "expanded" | "collapsed";
+
+export type IssueChatThreadComposerSubmitKey = "mod-enter" | "enter";
+
+export interface IssueChatThreadPresetConfig {
+  preset: IssueChatThreadPresetName;
+  density: IssueChatThreadDensity;
+  workingIndicator: IssueChatThreadWorkingIndicator;
+  variant: IssueChatThreadVariant;
+  showComposer: boolean;
+  showJumpToLatest: boolean;
+  autoScrollToLatestOnInitialLoad: boolean;
+  emptyMessage: string;
+  suppressIssueStatusNotices: boolean;
+  enableReassign: boolean;
+  showBackgroundWorkChildren: boolean;
+  showRunFinalizationActions: boolean;
+  composerSubmitKey: IssueChatThreadComposerSubmitKey;
+  composerSingleLine: boolean;
+  composerMentions: "enabled" | "optional";
+}
+
+export interface IssueChatThreadPresetOverrides {
+  variant?: IssueChatThreadVariant;
+  showComposer?: boolean;
+  showJumpToLatest?: boolean;
+  autoScrollToLatestOnInitialLoad?: boolean;
+  emptyMessage?: string;
+  suppressIssueStatusNotices?: boolean;
+  enableReassign?: boolean;
+  showBackgroundWorkChildren?: boolean;
+}
+
+type IssueChatThreadPresetDefinition = Omit<
+  IssueChatThreadPresetConfig,
+  "preset" | "variant" | "showJumpToLatest" | "emptyMessage"
+> & {
+  variant: IssueChatThreadVariant;
+  showJumpToLatest: (variant: IssueChatThreadVariant) => boolean;
+  emptyMessage: (variant: IssueChatThreadVariant) => string;
+};
+
+const taskEmptyMessage = (variant: IssueChatThreadVariant) =>
+  variant === "embedded"
+    ? "No run output yet."
+    : "This task conversation is empty. Start with a message below.";
+
+const ISSUE_CHAT_THREAD_PRESETS: Record<IssueChatThreadPresetName, IssueChatThreadPresetDefinition> = {
+  task: {
+    density: "comfortable",
+    workingIndicator: "expanded",
+    variant: "full",
+    showComposer: true,
+    showJumpToLatest: (variant) => variant === "full",
+    autoScrollToLatestOnInitialLoad: true,
+    emptyMessage: taskEmptyMessage,
+    suppressIssueStatusNotices: false,
+    enableReassign: false,
+    showBackgroundWorkChildren: true,
+    showRunFinalizationActions: true,
+    composerSubmitKey: "mod-enter",
+    composerSingleLine: false,
+    composerMentions: "enabled",
+  },
+  assistant: {
+    density: "compact",
+    workingIndicator: "collapsed",
+    variant: "full",
+    showComposer: true,
+    showJumpToLatest: () => false,
+    autoScrollToLatestOnInitialLoad: true,
+    emptyMessage: () => "Send a message to start the conversation.",
+    suppressIssueStatusNotices: true,
+    enableReassign: false,
+    showBackgroundWorkChildren: false,
+    showRunFinalizationActions: false,
+    composerSubmitKey: "enter",
+    composerSingleLine: true,
+    composerMentions: "optional",
+  },
+};
+
+export function resolveIssueChatThreadPreset(
+  preset: IssueChatThreadPresetName = "task",
+  overrides: IssueChatThreadPresetOverrides = {},
+): IssueChatThreadPresetConfig {
+  const definition = ISSUE_CHAT_THREAD_PRESETS[preset];
+  const variant = overrides.variant ?? definition.variant;
+
+  return {
+    preset,
+    density: definition.density,
+    workingIndicator: definition.workingIndicator,
+    variant,
+    showComposer: overrides.showComposer ?? definition.showComposer,
+    showJumpToLatest: overrides.showJumpToLatest ?? definition.showJumpToLatest(variant),
+    autoScrollToLatestOnInitialLoad:
+      overrides.autoScrollToLatestOnInitialLoad ?? definition.autoScrollToLatestOnInitialLoad,
+    emptyMessage: overrides.emptyMessage ?? definition.emptyMessage(variant),
+    suppressIssueStatusNotices:
+      overrides.suppressIssueStatusNotices ?? definition.suppressIssueStatusNotices,
+    enableReassign: overrides.enableReassign ?? definition.enableReassign,
+    showBackgroundWorkChildren:
+      overrides.showBackgroundWorkChildren ?? definition.showBackgroundWorkChildren,
+    showRunFinalizationActions: definition.showRunFinalizationActions,
+    composerSubmitKey: definition.composerSubmitKey,
+    composerSingleLine: definition.composerSingleLine,
+    composerMentions: definition.composerMentions,
+  };
+}