import { describe, expect, it, vi } from "vite-plus/test"; import {  resolveExternalWebLinkHost,  resolveExternalWebLinkHref,  showExternalLinkContextMenu,} from "./externalLinkContextMenu"; function createHarness(  selection:    | "open-in-preview"    | "open-external"    | "copy-link"    | "link-to-thread"    | "unlink-from-thread"    | null,) {  const showContextMenu = vi.fn().mockResolvedValue(selection);  const openInPreview = vi.fn().mockResolvedValue(undefined);  const openExternal = vi.fn().mockResolvedValue(undefined);  const copyLink = vi.fn().mockResolvedValue(undefined);  const updateThreadLink = vi.fn().mockResolvedValue(undefined);  const reportFailure = vi.fn();   return {    showContextMenu,    openInPreview,    openExternal,    copyLink,    updateThreadLink,    reportFailure,  };} describe("external chat link context menu", () => {  it("offers both open actions and Copy Link", async () => {    const harness = createHarness(null);     await showExternalLinkContextMenu({      href: "https://example.com/docs?topic=menus#copy",      position: { x: 12, y: 24 },      ...harness,    });     expect(harness.showContextMenu).toHaveBeenCalledWith(      [        { id: "open-in-preview", label: "Open in integrated browser" },        { id: "open-external", label: "Open in system browser" },        { id: "copy-link", label: "Copy Link" },      ],      { x: 12, y: 24 },    );    expect(harness.openInPreview).not.toHaveBeenCalled();    expect(harness.openExternal).not.toHaveBeenCalled();    expect(harness.copyLink).not.toHaveBeenCalled();  });   it("still offers the link's own actions where the integrated browser cannot be opened", async () => {    const harness = createHarness(null);     await showExternalLinkContextMenu({      href: "https://github.com/pingdotgg/t3code/pull/6169",      canOpenInPreview: false,      position: { x: 4, y: 8 },      ...harness,    });     expect(harness.showContextMenu).toHaveBeenCalledWith(      [        { id: "open-external", label: "Open in system browser" },        { id: "copy-link", label: "Copy Link" },      ],      { x: 4, y: 8 },    );  });   it("copies the exact destination without opening it", async () => {    const harness = createHarness("copy-link");    const href = "https://example.com/docs?topic=menus#copy";     await showExternalLinkContextMenu({ href, position: { x: 1, y: 2 }, ...harness });     expect(harness.copyLink).toHaveBeenCalledWith(href);    expect(harness.openInPreview).not.toHaveBeenCalled();    expect(harness.openExternal).not.toHaveBeenCalled();  });   it.each([    ["link-to-thread", "Link to thread", true],    ["unlink-from-thread", "Unlink from thread", false],  ] as const)("offers and runs the %s action", async (action, label, linked) => {    const harness = createHarness(action);    const href = "https://github.com/pingdotgg/t3code/pull/42";     await showExternalLinkContextMenu({      href,      threadLinkAction: action,      position: { x: 1, y: 2 },      ...harness,    });     expect(harness.showContextMenu).toHaveBeenCalledWith(      expect.arrayContaining([{ id: action, label }]),      { x: 1, y: 2 },    );    expect(harness.updateThreadLink).toHaveBeenCalledWith(href, linked);  });   it.each([    ["open-in-preview" as const, "openInPreview" as const],    ["open-external" as const, "openExternal" as const],  ])("preserves the %s action", async (selection, expectedCallback) => {    const harness = createHarness(selection);    const href = "https://example.com/docs";     await showExternalLinkContextMenu({ href, position: { x: 1, y: 2 }, ...harness });     expect(harness[expectedCallback]).toHaveBeenCalledWith(href);    expect(harness.copyLink).not.toHaveBeenCalled();  });   it("reports the selected action when it fails", async () => {    const harness = createHarness("copy-link");    const cause = new Error("clipboard denied");    harness.copyLink.mockRejectedValue(cause);     await showExternalLinkContextMenu({      href: "https://example.com/docs",      position: { x: 1, y: 2 },      ...harness,    });     expect(harness.reportFailure).toHaveBeenCalledWith("copy-link", cause);  });   it("reports the menu operation when the native menu cannot be shown", async () => {    const harness = createHarness(null);    const cause = new Error("menu unavailable");    harness.showContextMenu.mockRejectedValue(cause);     await showExternalLinkContextMenu({      href: "https://example.com/docs",      position: { x: 1, y: 2 },      ...harness,    });     expect(harness.reportFailure).toHaveBeenCalledWith("show-link-context-menu", cause);    expect(harness.openInPreview).not.toHaveBeenCalled();    expect(harness.openExternal).not.toHaveBeenCalled();    expect(harness.copyLink).not.toHaveBeenCalled();  });   it.each([    ["open-in-preview" as const, "openInPreview" as const, "open-link-in-preview"],    ["open-external" as const, "openExternal" as const, "open-link-external"],  ])("reports a failed %s action", async (selection, callback, operation) => {    const harness = createHarness(selection);    const cause = new Error("open failed");    harness[callback].mockRejectedValue(cause);     await showExternalLinkContextMenu({      href: "https://example.com/docs",      position: { x: 1, y: 2 },      ...harness,    });     expect(harness.reportFailure).toHaveBeenCalledWith(operation, cause);  });   it("reports a failed thread link action", async () => {    const harness = createHarness("link-to-thread");    const cause = new Error("thread update failed");    harness.updateThreadLink.mockRejectedValue(cause);     await showExternalLinkContextMenu({      href: "https://github.com/pingdotgg/t3code/pull/42",      threadLinkAction: "link-to-thread",      position: { x: 1, y: 2 },      ...harness,    });     expect(harness.reportFailure).toHaveBeenCalledWith("link-pull-request-to-thread", cause);  });   it.each([    ["https://example.com", "example.com"],    ["http://localhost:3000/path", "localhost"],    ["//cdn.example.com/clip.mp4?signature=abc#t=2", "cdn.example.com"],    ["//", null],    ["#details", null],    ["mailto:hello@example.com", null],    ["file:///tmp/example.txt", null],    ["javascript:void(0)", null],    ["not a URL", null],    [undefined, null],  ])("resolves the external web-link host for %s as %s", (href, expected) => {    expect(resolveExternalWebLinkHost(href)).toBe(expected);  });   it.each([    [      "https://example.com/docs?topic=security#links",      "https://example.com/docs?topic=security#links",    ],    ["HTTP://EXAMPLE.COM", "http://example.com/"],    ["//example.com/path", "https://example.com/path"],  ])("resolves the safe external web-link href for %s as %s", (href, expected) => {    expect(resolveExternalWebLinkHref(href)).toBe(expected);  });   it.each([    "javascript:alert(document.domain)",    " \nJaVaScRiPt:alert(document.domain)",    "data:text/html,<script>alert(document.domain)</script>",    "file:///tmp/example.txt",    "mailto:hello@example.com",    "/relative/path",    "not a URL",    "",  ])("rejects unsafe external web-link href %s", (href) => {    expect(resolveExternalWebLinkHref(href)).toBeNull();  });});