import {  PullRequestAction,  type PullRequestCheck,  type PullRequestComment,  type PullRequestDetailView,  type PullRequestReviewThread,} from "@t3tools/contracts";import { describe, expect, it } from "vite-plus/test"; import {  buildAskAboutLinesHandoff,  buildAskAboutPullRequestHandoff,  buildExplainPullRequestHandoff,  buildFixFindingHandoff,  buildFixFindingsHandoff,  groupPullRequestTimelineConversations,  handoffPrompt,  handoffReviewComments,  isThreadOwnPullRequest,  orderPullRequestComments,  pullRequestActionNeedsHostRefresh,  pullRequestFindingKey,  pullRequestHandoffLabels,  readableFailure,  resolveBaseFreshness,  buildPullRequestTimeline,  describePullRequestState,} from "./pullRequestDetail.logic";import type { ReviewCommentContext } from "~/reviewCommentContext"; const TIMELINE_SOURCE: Pick<  PullRequestDetailView,  "createdAt" | "author" | "commits" | "comments" | "mergedAt" | "closedAt"> = {  createdAt: "2026-07-01T00:00:00Z",  author: { login: "octocat", name: null, avatarUrl: null },  commits: [    { oid: "1baf7bdcafe", messageHeadline: "add the page", committedDate: "2026-07-02T00:00:00Z" },  ],  comments: [    {      id: "c1",      kind: "issue-comment",      author: { login: "bilal", name: null, avatarUrl: null },      body: "looks good",      createdAt: "2026-07-03T00:00:00Z",      url: null,      path: null,      reviewState: null,    },  ],  mergedAt: null,  closedAt: null,}; describe("pull request state description", () => {  it("keeps draft and conflicts orthogonal to the terminal states", () => {    expect(describePullRequestState("open", true)).toBe("Draft");    expect(describePullRequestState("open", false)).toBe("Ready for review");    expect(describePullRequestState("merged", true)).toBe("Merged");    expect(describePullRequestState("closed", false)).toBe("Closed");  });}); describe("pull request handoff labels", () => {  it("names the open thread when actions write to its composer", () => {    expect(pullRequestHandoffLabels(true)).toEqual({      fixFinding: "Fix in this thread",      fixCheck: "Fix in this thread",      fixFindings: "Fix findings in this thread",      resolve: "Resolve in this thread",      resolveConflicts: "Resolve conflicts in this thread",    });  });   it("keeps the standalone pull request page labels", () => {    expect(pullRequestHandoffLabels(false)).toEqual({      fixFinding: "Fix in a thread",      fixCheck: "Fix",      fixFindings: "Fix findings in a thread",      resolve: "Resolve in a new thread",      resolveConflicts: "Resolve conflicts in a thread",    });  });}); describe("ordering comments", () => {  it("reverses the chronological list for newest first, and leaves oldest first alone", () => {    const comments = [{ createdAt: "a" }, { createdAt: "b" }, { createdAt: "c" }];    expect(orderPullRequestComments(comments, "newest")).toEqual([      { createdAt: "c" },      { createdAt: "b" },      { createdAt: "a" },    ]);    expect(orderPullRequestComments(comments, "oldest")).toEqual(comments);    // The source array is chronological input, not a mutation target.    expect(comments).toEqual([{ createdAt: "a" }, { createdAt: "b" }, { createdAt: "c" }]);  });}); describe("pull request timeline", () => {  it("orders creation, commits and comments newest first", () => {    // What happened last is what the reader opening the tab is asking about.    expect(buildPullRequestTimeline(TIMELINE_SOURCE).map((event) => event.id)).toEqual([      "c1",      "1baf7bdcafe",      "created",    ]);  });   it("carries the comment url, and leaves the events the host cannot address without one", () => {    const events = buildPullRequestTimeline({      ...TIMELINE_SOURCE,      comments: [{ ...TIMELINE_SOURCE.comments[0]!, url: "https://example.test/pull/1#c1" }],    });    expect(events.map((event) => event.url)).toEqual([      "https://example.test/pull/1#c1",      null,      null,    ]);  });   it("carries actors and review context into the presentation model", () => {    const commitAuthors = [      { login: "octocat", name: null, avatarUrl: "https://example.test/octocat.png" },      { login: "pair", name: "Pair Author", avatarUrl: null },    ];    const events = buildPullRequestTimeline({      ...TIMELINE_SOURCE,      commits: [{ ...TIMELINE_SOURCE.commits[0]!, authors: commitAuthors }],      comments: [        {          ...TIMELINE_SOURCE.comments[0]!,          kind: "review",          path: "src/app.ts",          reviewState: "APPROVED",        },      ],    });     expect(events.find((event) => event.kind === "commit")?.commitAuthors).toEqual(commitAuthors);    expect(events.find((event) => event.kind === "review")).toMatchObject({      actor: TIMELINE_SOURCE.comments[0]?.author,      path: "src/app.ts",      reviewState: "APPROVED",    });  });   it("carries each commit's line counts into its timeline event", () => {    const events = buildPullRequestTimeline({      ...TIMELINE_SOURCE,      commits: [{ ...TIMELINE_SOURCE.commits[0]!, additions: 12, deletions: 4 }],    });     expect(events.find((event) => event.kind === "commit")).toMatchObject({      additions: 12,      deletions: 4,    });  });   it("drops a body that is nothing but a bot's HTML comment, and keeps one that says more", () => {    const events = buildPullRequestTimeline({      ...TIMELINE_SOURCE,      comments: [        { ...TIMELINE_SOURCE.comments[0]!, body: "<!-- MURMUR_IGNORE -->" },        {          ...TIMELINE_SOURCE.comments[0]!,          id: "c2",          body: "<!-- summarize by coderabbit.ai -->\nNeeds a test.",          createdAt: "2026-07-04T00:00:00Z",        },      ],    });    expect(events.find((event) => event.id === "c1")?.body).toBeNull();    // Kept whole: the renderer drops the marker itself, and stripping it here would also    // strip an HTML comment a reviewer quoted inside a code fence.    expect(events.find((event) => event.id === "c2")?.body).toBe(      "<!-- summarize by coderabbit.ai -->\nNeeds a test.",    );  });   it("calls a comment markdown and a commit headline plain text", () => {    const events = buildPullRequestTimeline(TIMELINE_SOURCE);    // A headline reading `fix: drop *legacy* path` is not asking for emphasis.    expect(events.map((event) => [event.title.startsWith("Commit"), event.markdown])).toEqual(      expect.arrayContaining([[true, false]]),    );    expect(events.find((event) => event.id === "c1")?.markdown).toBe(true);  });   it("reports a merge rather than the close GitHub records alongside it", () => {    const events = buildPullRequestTimeline({      ...TIMELINE_SOURCE,      mergedAt: "2026-07-04T00:00:00Z",      closedAt: "2026-07-04T00:00:00Z",    });    // Newest first, so the terminal event opens the list rather than ending it.    expect(events[0]?.id).toBe("merged");    expect(events.some((event) => event.id === "closed")).toBe(false);  });   it("groups conversation sections without crossing commits or PR updates", () => {    const events = buildPullRequestTimeline({      ...TIMELINE_SOURCE,      comments: [        {          ...TIMELINE_SOURCE.comments[0]!,          id: "new-comment-1",          createdAt: "2026-07-04T00:00:00Z",        },        {          ...TIMELINE_SOURCE.comments[0]!,          id: "new-comment-2",          createdAt: "2026-07-03T00:00:00Z",        },        {          ...TIMELINE_SOURCE.comments[0]!,          id: "old-comment-1",          createdAt: "2026-07-01T12:00:00Z",        },        {          ...TIMELINE_SOURCE.comments[0]!,          id: "old-comment-2",          createdAt: "2026-07-01T06:00:00Z",        },      ],      mergedAt: "2026-07-05T00:00:00Z",    });     const rows = groupPullRequestTimelineConversations(events);    expect(      rows.map((row) =>        row.kind === "comments"          ? [row.kind, ...row.events.map((event) => event.id)]          : [row.kind, row.event.id],      ),    ).toEqual([      ["event", "merged"],      ["comments", "new-comment-1", "new-comment-2"],      ["event", "1baf7bdcafe"],      ["comments", "old-comment-1", "old-comment-2"],      ["event", "created"],    ]);  });}); describe("fix findings handoff", () => {  const base = {    number: 42,    title: "Add the pull requests page",    url: "https://github.com/pingdotgg/t3code/pull/42",    headBranch: "feat/page",    baseBranch: "main",    comments: [] as ReadonlyArray<PullRequestComment>,    commentsTruncated: false,  };   function thread(    body: string,    overrides: Partial<PullRequestReviewThread> = {},  ): PullRequestReviewThread {    return {      id: "t1",      path: "apps/web/src/page.tsx",      line: 12,      side: "right",      isResolved: false,      isOutdated: false,      comments: [        {          id: "tc1",          author: { login: "reviewer", name: null, avatarUrl: null },          body,          createdAt: "2026-07-03T00:00:00Z",          url: null,        },      ],      ...overrides,    };  }   const failingCheck: PullRequestCheck = {    name: "typecheck",    status: "failure",    description: "2 errors",    url: null,  };   it("attaches a review thread as an annotation instead of quoting it in the prompt", () => {    const handoff = buildFixFindingsHandoff({      ...base,      reviewThreads: [thread("rename the helper")],      checks: [],    });    expect(handoff.reviewComments).toEqual([      expect.objectContaining({        filePath: "apps/web/src/page.tsx",        rangeLabel: "L12",        startIndex: 11,        endIndex: 11,        text: "reviewer: rename the helper",      }),    ]);    expect(handoff.prompt).not.toContain("rename the helper");    expect(handoff.prompt).toContain("untrusted data");  });   it("names the pre-change side, and a thread the host pinned to the file rather than a line", () => {    const handoff = buildFixFindingsHandoff({      ...base,      reviewThreads: [        thread("was this deleted on purpose?", { side: "left" }),        thread("wrong module", { id: "t2", line: null }),      ],      checks: [],    });    expect(handoff.reviewComments.map((comment) => comment.rangeLabel)).toEqual([      "L12 (before)",      "file",    ]);  });   it("keeps failing checks in the prompt, having no line to attach them to", () => {    const handoff = buildFixFindingsHandoff({      ...base,      reviewThreads: [],      checks: [failingCheck],    });    expect(handoff.prompt).toContain("> typecheck — 2 errors");    expect(handoff.reviewComments).toEqual([]);  });   it("leaves out a resolved conversation, and one nobody wrote in", () => {    const handoff = buildFixFindingsHandoff({      ...base,      reviewThreads: [        thread("already handled", { isResolved: true }),        thread("   ", { id: "t2" }),        thread("still open", { id: "t3" }),      ],      checks: [],    });    expect(handoff.reviewComments.map((comment) => comment.text)).toEqual(["reviewer: still open"]);  });   it("says so plainly when there is nothing actionable", () => {    const handoff = buildFixFindingsHandoff({ ...base, reviewThreads: [], checks: [] });    expect(handoff.prompt).toContain("No unresolved review findings were returned");    expect(handoff.reviewComments).toEqual([]);  });   it("bounds a hostile review body instead of attaching it whole", () => {    const handoff = buildFixFindingsHandoff({      ...base,      reviewThreads: [thread("x".repeat(5_000))],      checks: [],    });    expect(handoff.reviewComments[0]?.text).toHaveLength(1_000);    expect(handoff.reviewComments[0]?.text.endsWith("...")).toBe(true);  });   it("keeps the newest threads and the failing checks when it has to cut", () => {    const handoff = buildFixFindingsHandoff({      ...base,      reviewThreads: Array.from({ length: 25 }, (_, index) =>        thread(`finding ${index}`, { id: `t${index}` }),      ),      checks: [failingCheck],    });    // Oldest threads are dropped rather than the current failure and the recent feedback.    const texts = handoff.reviewComments.map((comment) => comment.text);    expect(texts).toHaveLength(19);    expect(texts.at(-1)).toBe("reviewer: finding 24");    expect(texts).not.toContain("reviewer: finding 0");    expect(handoff.prompt).toContain("typecheck");    expect(handoff.prompt).toContain("6 further findings were omitted");  });}); describe("findings that cannot be attached", () => {  const base = {    number: 42,    title: "Add the pull requests page",    url: "https://github.com/pingdotgg/t3code/pull/42",    headBranch: "feat/page",    baseBranch: "main",    reviewThreads: [] as ReadonlyArray<PullRequestReviewThread>,    checks: [] as ReadonlyArray<PullRequestCheck>,    commentsTruncated: false,  };   const review: PullRequestComment = {    id: "r1",    kind: "review",    author: { login: "julius", name: null, avatarUrl: null },    body: "This breaks SSO auth, revert the middleware change.",    createdAt: "2026-07-01T00:00:00Z",    url: null,    path: null,    reviewState: "CHANGES_REQUESTED",  };   it("carries a review submitted with words but no line, which has nothing to attach to", () => {    const handoff = buildFixFindingsHandoff({ ...base, comments: [review] });     // It has no file and no line, so it travels the way a failing check does rather than    // being dropped for lacking somewhere to point.    expect(handoff.reviewComments).toEqual([]);    expect(handoff.prompt).toContain("revert the middleware change");    expect(handoff.prompt).not.toContain("No unresolved review findings");  });   it("carries a host's line comments when it reports no threads at all", () => {    // Azure DevOps has no diff to pin a conversation to, so every remark arrives this way.    const handoff = buildFixFindingsHandoff({      ...base,      comments: [{ ...review, id: "a1", kind: "review-comment", path: "src/app.ts" }],    });     expect(handoff.prompt).toContain("src/app.ts");    expect(handoff.prompt).toContain("revert the middleware change");  });   it("does not repeat a remark that was already attached as a thread", () => {    const attachedId = "t1c1";    const handoff = buildFixFindingsHandoff({      ...base,      reviewThreads: [        {          id: "t1",          path: "src/app.ts",          line: 12,          side: "right",          isResolved: false,          isOutdated: false,          comments: [            {              id: attachedId,              author: { login: "julius", name: null, avatarUrl: null },              body: "rename the helper",              createdAt: "2026-07-01T00:00:00Z",              url: null,            },          ],        },      ],      comments: [{ ...review, id: attachedId, kind: "review-comment", body: "rename the helper" }],    });     expect(handoff.reviewComments).toHaveLength(1);    expect(handoff.prompt).not.toContain("rename the helper");  });}); describe("one finding handed over on its own", () => {  const base = {    number: 42,    title: "Add the pull requests page",    url: "https://github.com/pingdotgg/t3code/pull/42",    headBranch: "feat/page",    baseBranch: "main",  };   const reviewThread: PullRequestReviewThread = {    id: "t1",    path: "apps/web/src/page.tsx",    line: 12,    side: "right",    isResolved: true,    isOutdated: false,    comments: [      {        id: "tc1",        author: { login: "reviewer", name: null, avatarUrl: null },        body: "rename the helper",        createdAt: "2026-07-03T00:00:00Z",        url: null,      },    ],  };   it("attaches a thread as its own annotation, resolved or not", () => {    // The bulk handoff skips resolved threads as finished work. Pressing the button on one is    // an explicit request for that thread, so it is not second-guessed.    const handoff = buildFixFindingHandoff({      ...base,      finding: { kind: "thread", thread: reviewThread },    });    expect(handoff.reviewComments).toEqual([      expect.objectContaining({ filePath: "apps/web/src/page.tsx", rangeLabel: "L12" }),    ]);    expect(handoff.prompt).toContain("attached to this message");    expect(handoff.prompt).not.toContain("rename the helper");  });   it("quotes a review remark, which has no line to attach it to", () => {    const handoff = buildFixFindingHandoff({      ...base,      finding: {        kind: "comment",

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