import type { ThreadPullRequestLink } from "@t3tools/contracts";import { describe, expect, it } from "vite-plus/test"; import { resolveThreadReferenceCopyTarget } from "./threadReference.ts"; const crossRepositoryPullRequest: ThreadPullRequestLink = {  host: "github.com",  repository: "other/repo",  number: 42,  url: "https://github.com/other/repo/pull/42",  source: "manual",  linkedAt: "2026-01-01T00:00:00.000Z",  snapshot: null,  stack: null,}; describe("resolveThreadReferenceCopyTarget", () => {  it("does not copy another reference while the open panel URL is unavailable", () => {    expect(      resolveThreadReferenceCopyTarget({        threadId: "thread-1",        openPanelPullRequestUrl: null,        pullRequests: [crossRepositoryPullRequest],        linkedPullRequestUrl: "https://github.com/t3/pr/12",      }),    ).toBeNull();  });   it("prefers the open panel pull request over the thread pull request", () => {    expect(      resolveThreadReferenceCopyTarget({        threadId: "thread-1",        openPanelPullRequestUrl: "https://github.com/t3/pr/14",        pullRequests: [crossRepositoryPullRequest],        linkedPullRequestUrl: "https://github.com/t3/pr/12",      }),    ).toMatchObject({      kind: "pull-request",      value: "https://github.com/t3/pr/14",      successTitle: "PR link copied",    });  });   it.each([null, "https://github.com/t3/pr/12"])(    "copies a native cross-repository link before the fallback URL %s",    (linkedPullRequestUrl) => {      expect(        resolveThreadReferenceCopyTarget({          threadId: "thread-1",          pullRequests: [crossRepositoryPullRequest],          linkedPullRequestUrl,        }),      ).toMatchObject({        kind: "pull-request",        value: crossRepositoryPullRequest.url,      });    },  );   it("copies the highest open stack layer instead of the first link", () => {    const stack: NonNullable<ThreadPullRequestLink["stack"]> = {      kind: "native",      id: "stack-1",      number: 1,      url: "https://github.com/other/repo/stacks/1",      base: "main",      layers: [        { number: 42, headBranch: "first", state: "open" },        { number: 43, headBranch: "second", state: "open" },      ],    };    const top = {      ...crossRepositoryPullRequest,      number: 43,      url: "https://github.com/other/repo/pull/43",      stack,    };    expect(      resolveThreadReferenceCopyTarget({        threadId: "thread-1",        pullRequests: [{ ...crossRepositoryPullRequest, stack }, top],      }),    ).toMatchObject({ kind: "pull-request", value: top.url });  });   it("uses the fallback URL when native links are dismissed", () => {    expect(      resolveThreadReferenceCopyTarget({        threadId: "thread-1",        pullRequests: [{ ...crossRepositoryPullRequest, source: "stack-dismissed" }],        linkedPullRequestUrl: "https://github.com/t3/pr/12",      }),    ).toMatchObject({ kind: "pull-request", value: "https://github.com/t3/pr/12" });  });   it("uses the thread pull request when no panel is open", () => {    expect(      resolveThreadReferenceCopyTarget({        threadId: "thread-1",        linkedPullRequestUrl: "https://github.com/t3/pr/12",      }),    ).toMatchObject({      kind: "pull-request",      value: "https://github.com/t3/pr/12",      successTitle: "PR link copied",    });  });   it("falls back to the thread ID", () => {    expect(resolveThreadReferenceCopyTarget({ threadId: "thread-1" })).toEqual({      kind: "thread",      value: "thread-1",      clipboardTarget: "thread ID",      successTitle: "Thread ID copied",      failureTitle: "Failed to copy thread ID",    });  });});