import { expect, test } from "@playwright/test";
import { mockAgentApi } from "./support/mock-agent-api";
import { mockWorkbenchContext } from "./support/mock-workbench-context";
import { responsesFixture } from "./support/responses-fixture";

test("Agent export links download through the scoped client and preserve the conversation", async ({ page }) => {
  await page.emulateMedia({ reducedMotion: "reduce" });
  await mockWorkbenchContext(page, undefined, undefined, {}, [], { runtimeMode: "backend" });
  await mockAgentApi(page);
  const filename = "mcp-11111111-1111-1111-1111-111111111111.zip";
  const path = `/api/v1/session/browser-session-1/files/${filename}`;
  await page.route("**/api/v1/responses", (route) => {
    if (route.request().method() === "OPTIONS") return route.fallback();
    return route.fulfill({ headers: { "Access-Control-Allow-Origin": "*", "Content-Type": "text/event-stream" }, body: responsesFixture([
      { type: "start", messageId: "export-answer" }, { type: "text-start", id: "export-text" },
      { type: "text-delta", id: "export-text", delta: `[下载模型文件](${path}) [外部参考](https://example.com)` },
      { type: "text-end", id: "export-text" }, { type: "finish", finishReason: "stop" },
    ]) });
  });
  let projectHeader: string | undefined;
  await page.route(`**${path}`, (route) => {
    if (route.request().method() === "OPTIONS") return route.fallback();
    projectHeader = route.request().headers()["x-project-id"];
    return route.fulfill({ headers: { "Access-Control-Allow-Origin": "*", "Content-Type": "application/zip" }, body: "ZIP fixture" });
  });
  await page.goto("/", { waitUntil: "domcontentloaded" });
  await page.getByRole("button", { name: /展开 Agent 助手面板/ }).click();
  const panel = page.getByRole("complementary", { name: "Agent 命令面板" });
  await panel.locator("textarea").fill("导出当前模型");
  await panel.getByRole("button", { name: "发送 Agent 指令" }).click();
  const link = panel.getByRole("link", { name: "下载模型文件" });
  await expect(link).toBeVisible();
  await expect(panel.getByRole("button", { name: "外部参考" })).toBeVisible();
  const pageUrl = page.url();
  const downloading = page.waitForEvent("download");
  await link.focus();
  await page.keyboard.press("Enter");
  const file = await downloading;
  expect(file.suggestedFilename()).toBe(filename);
  expect(projectHeader).toBeTruthy();
  expect(page.url()).toBe(pageUrl);
  await expect(panel.locator("textarea")).toBeVisible();
});