import { EnvironmentId, MessageId } from "@t3tools/contracts";import { createRef, type ReactNode, type Ref } from "react";import { renderToStaticMarkup } from "react-dom/server";import { beforeAll, describe, expect, it, vi } from "vitest";import type { LegendListRef } from "@legendapp/list/react"; vi.mock("@legendapp/list/react", async () => {  const legendListTestId = "legend-list";   const LegendList = (props: {    data: Array<{ id: string }>;    keyExtractor: (item: { id: string }) => string;    renderItem: (args: { item: { id: string } }) => ReactNode;    ListHeaderComponent?: ReactNode;    ListFooterComponent?: ReactNode;    ref?: Ref<LegendListRef>;  }) => (    <div data-testid={legendListTestId}>      {props.ListHeaderComponent}      {props.data.map((item) => (        <div key={props.keyExtractor(item)}>{props.renderItem({ item })}</div>      ))}      {props.ListFooterComponent}    </div>  );   return { LegendList };}); function MockFileDiff(props: {  fileDiff: { name?: string | null; prevName?: string | null };  renderCustomHeader?: (fileDiff: {    name?: string | null;    prevName?: string | null;  }) => React.ReactNode;}) {  return (    <div data-testid="file-diff">      {props.renderCustomHeader?.(props.fileDiff)}      {props.fileDiff.name ?? props.fileDiff.prevName ?? "diff"}    </div>  );} vi.mock("@pierre/diffs/react", () => {  return { FileDiff: MockFileDiff };}); function matchMedia() {  return {    matches: false,    addEventListener: () => {},    removeEventListener: () => {},  };} beforeAll(() => {  const classList = {    add: () => {},    remove: () => {},    toggle: () => {},    contains: () => false,  };   vi.stubGlobal("localStorage", {    getItem: () => null,    setItem: () => {},    removeItem: () => {},    clear: () => {},  });  vi.stubGlobal("window", {    matchMedia,    addEventListener: () => {},    removeEventListener: () => {},    requestAnimationFrame: (callback: FrameRequestCallback) => {      callback(0);      return 0;    },    cancelAnimationFrame: () => {},    desktopBridge: undefined,  });  vi.stubGlobal("document", {    documentElement: {      classList,      offsetHeight: 0,    },  });}); const ACTIVE_THREAD_ENVIRONMENT_ID = EnvironmentId.make("environment-local");const MESSAGE_CREATED_AT = "2026-03-17T19:12:28.000Z"; function buildProps() {  return {    isWorking: false,    activeTurnInProgress: false,    activeTurnId: null,    activeTurnStartedAt: null,    listRef: createRef<LegendListRef | null>(),    completionDividerBeforeEntryId: null,    completionSummary: null,    turnDiffSummaryByAssistantMessageId: new Map(),    routeThreadKey: "environment-local:thread-1",    onOpenTurnDiff: () => {},    revertTurnCountByUserMessageId: new Map(),    onRevertUserMessage: () => {},    isRevertingCheckpoint: false,    onImageExpand: () => {},    activeThreadEnvironmentId: ACTIVE_THREAD_ENVIRONMENT_ID,    markdownCwd: undefined,    resolvedTheme: "light" as const,    timestampFormat: "locale" as const,    workspaceRoot: undefined,    onIsAtEndChange: () => {},  };} function buildLongUserMessageText(tail = "deep hidden detail only after expand") {  return Array.from({ length: 9 }, (_, index) =>    index === 8 ? tail : `Line ${index + 1}: ${"verbose prompt content ".repeat(8).trim()}`,  ).join("\n");} function buildUserTimelineEntry(text: string) {  return {    id: "entry-1",    kind: "message" as const,    createdAt: MESSAGE_CREATED_AT,    message: {      id: MessageId.make("message-1"),      role: "user" as const,      text,      createdAt: MESSAGE_CREATED_AT,      streaming: false,    },  };} describe("MessagesTimeline", () => {  it("renders collapse controls for long user messages", async () => {    const { MessagesTimeline } = await import("./MessagesTimeline");    const markup = renderToStaticMarkup(      <MessagesTimeline        {...buildProps()}        timelineEntries={[buildUserTimelineEntry(buildLongUserMessageText())]}      />,    );     expect(markup).toContain("Show full message");    expect(markup).toContain('data-user-message-collapsed="true"');    expect(markup).toContain('data-user-message-fade="true"');    expect(markup).toContain('data-user-message-footer="true"');  });   it("does not render collapse controls for short user messages", async () => {    const { MessagesTimeline } = await import("./MessagesTimeline");    const markup = renderToStaticMarkup(      <MessagesTimeline        {...buildProps()}        timelineEntries={[buildUserTimelineEntry("Short prompt.")]}      />,    );     expect(markup).not.toContain("Show full message");    expect(markup).toContain('data-user-message-collapsible="false"');  });   it("renders inline terminal labels with the composer chip UI", async () => {    const { MessagesTimeline } = await import("./MessagesTimeline");    const markup = renderToStaticMarkup(      <MessagesTimeline        {...buildProps()}        timelineEntries={[          buildUserTimelineEntry(            [              buildLongUserMessageText("yoo what's @terminal-1:1-5 mean"),              "",              "<terminal_context>",              "- Terminal 1 lines 1-5:",              "  1 | julius@mac effect-http-ws-cli % bun i",              "  2 | bun install v1.3.9 (cf6cdbbb)",              "</terminal_context>",            ].join("\n"),          ),        ]}      />,    );     expect(markup).toContain("Terminal 1 lines 1-5");    expect(markup).toContain("lucide-terminal");    expect(markup).toContain("yoo what&#x27;s ");    expect(markup).toContain("Show full message");  }, 20_000);   it("keeps the copy button for collapsed long user messages", async () => {    const { MessagesTimeline } = await import("./MessagesTimeline");    const markup = renderToStaticMarkup(      <MessagesTimeline        {...buildProps()}        timelineEntries={[buildUserTimelineEntry(buildLongUserMessageText())]}      />,    );     expect(markup).toContain('aria-label="Copy link"');    expect(markup).toContain('data-user-message-collapsed="true"');    expect(markup).toContain('data-user-message-footer="true"');  });   it("renders context compaction entries in the normal work log", async () => {    const { MessagesTimeline } = await import("./MessagesTimeline");    const markup = renderToStaticMarkup(      <MessagesTimeline        {...buildProps()}        timelineEntries={[          {            id: "entry-1",            kind: "work",            createdAt: "2026-03-17T19:12:28.000Z",            entry: {              id: "work-1",              createdAt: "2026-03-17T19:12:28.000Z",              label: "Context compacted",              tone: "info",            },          },        ]}      />,    );     expect(markup).toContain("Context compacted");    expect(markup).toContain("Work log");  });   it("formats changed file paths from the workspace root", async () => {    const { MessagesTimeline } = await import("./MessagesTimeline");    const markup = renderToStaticMarkup(      <MessagesTimeline        {...buildProps()}        timelineEntries={[          {            id: "entry-1",            kind: "work",            createdAt: "2026-03-17T19:12:28.000Z",            entry: {              id: "work-1",              createdAt: "2026-03-17T19:12:28.000Z",              label: "Updated files",              tone: "tool",              changedFiles: ["C:/Users/mike/dev-stuff/t3code/apps/web/src/session-logic.ts"],            },          },        ]}        workspaceRoot="C:/Users/mike/dev-stuff/t3code"      />,    );     expect(markup).toContain("t3code/apps/web/src/session-logic.ts");    expect(markup).not.toContain("C:/Users/mike/dev-stuff/t3code/apps/web/src/session-logic.ts");  });   it("renders review comment contexts as structured cards instead of raw tags", async () => {    const { MessagesTimeline } = await import("./MessagesTimeline");    const markup = renderToStaticMarkup(      <MessagesTimeline        {...buildProps()}        timelineEntries={[          {            id: "entry-1",            kind: "message",            createdAt: "2026-03-17T19:12:28.000Z",            message: {              id: MessageId.make("message-2"),              role: "user",              text: [                '<review_comment sectionId="turn:2" sectionTitle="Turn 2" filePath="apps/web/src/lib/contextWindow.test.ts" startIndex="3" endIndex="14" rangeLabel="+47 to +58">',                "Wadduo",                "```diff",                "@@ -0,0 +47,2 @@",                '+  it("keeps valid zero-usage snapshots", () => {',                "+    expect(snapshot).not.toBeNull();",                "```",                "</review_comment>",              ].join("\n"),              createdAt: "2026-03-17T19:12:28.000Z",              streaming: false,            },          },        ]}      />,    );     expect(markup).toContain("contextWindow.test.ts");    expect(markup).toContain("Wadduo");    expect(markup).toContain('data-testid="file-diff"');    expect(markup).not.toContain(">Review comment<");    expect(markup).not.toContain("&lt;review_comment");    expect(markup).not.toContain("&lt;/review_comment&gt;");  });});