import { expect, test } from "@playwright/test";
import { expandSimulationConsole, prepareApp } from "./fixtures";

const report = {
  checkId: "backend-start-1", status: "running", stage: "compiling",
  message: "正在编译最小自检程序", durationMs: 100,
  compiler: "gcc", compilerVersion: "gcc test", sundialsRoot: "/native/sundials",
  error: null, failure: null,
};

test("self-check progress does not block editing and completion is logged once", async ({ page }) => {
  await prepareApp(page);
  let completed = false;
  let requests = 0;
  await page.route("**/api/simulation/runtime-check", route => {
    requests++;
    return route.fulfill({ json: completed ? { ...report, status: "completed", stage: "complete",
      message: "仿真环境自检通过：最小程序预处理、编译、链接和运行均成功", durationMs: 1250 } : report });
  });
  await page.goto("/");
  await expandSimulationConsole(page);
  const panel = page.getByRole("complementary", { name: "仿真控制台", exact: true });
  await expect(panel).toContainText("正在检测仿真环境");
  const name = page.getByRole("textbox", { name: "工程", exact: true });
  await name.fill("检测期间仍可编辑");
  await expect(name).toHaveValue("检测期间仍可编辑");
  await expect.poll(() => requests).toBeGreaterThanOrEqual(3);
  await expect(panel.locator(".simulation-console-dock-entry-message").filter({ hasText: "正在检测仿真环境" })).toHaveCount(1);
  completed = true;
  await expect(panel).toContainText("仿真环境自检通过");
  await expect(panel).toContainText("1.25 秒");
  await page.evaluate(() => window.dispatchEvent(new Event("focus")));
  await expect(panel.locator(".simulation-console-dock-entry-message").filter({ hasText: "仿真环境自检通过" })).toHaveCount(1);
});

test("link failure shows diagnostics and a backend restart reports recovery", async ({ page }) => {
  await prepareApp(page);
  let recovered = false;
  await page.route("**/api/simulation/runtime-check", route => route.fulfill({ json: recovered
    ? { ...report, checkId: "backend-start-2", status: "completed", stage: "complete", message: "仿真环境自检通过" }
    : { ...report, status: "failed", stage: "linking", message: "仿真环境自检失败，编辑器仍可使用",
      error: "命令执行失败", failure: { command: ["gcc", "check.o", "-o", "model"], cwd: "/native/check",
        exitCode: 7, stderr: "cannot find library", stdout: "", errorType: "CalledProcessError" } } }));
  await page.goto("/");
  await expandSimulationConsole(page);
  const panel = page.getByRole("complementary", { name: "仿真控制台", exact: true });
  await expect(panel).toContainText("失败阶段：链接");
  await expect(panel).toContainText("退出码：7");
  await expect(panel).toContainText("cannot find library");
  await expect(panel).toContainText('"gcc" "check.o" "-o" "model"');
  await page.getByRole("textbox", { name: "工程", exact: true }).fill("失败后仍可编辑");
  recovered = true;
  await page.evaluate(() => window.dispatchEvent(new Event("focus")));
  await expect(panel).toContainText("仿真环境自检通过");
});

test("backend unavailable at page load is retried without duplicate warnings", async ({ page }) => {
  await prepareApp(page);
  let available = false;
  await page.route("**/api/simulation/runtime-check", route => available
    ? route.fulfill({ json: { ...report, status: "completed", message: "仿真环境自检通过" } })
    : route.fulfill({ status: 503 }));
  await page.goto("/");
  await expandSimulationConsole(page);
  const panel = page.getByRole("complementary", { name: "仿真控制台", exact: true });
  await expect(panel).toContainText("暂时无法获取仿真环境自检状态");
  available = true;
  await expect(panel).toContainText("仿真环境自检通过");
});

for (const finalStatus of ["completed", "failed"] as const) {
  test(`automatic retries suppress diagnostics until ${finalStatus}`, async ({ page }) => {
    await prepareApp(page);
    let attempt = 1;
    let finished = false;
    const failure = { command: ["gcc", "check.c"], cwd: "/native/check", exitCode: 1,
      stderr: "CreateProcess: No such file or directory", stdout: "", errorType: "CalledProcessError" };
    await page.route("**/api/simulation/runtime-check", route => route.fulfill({ json: finished
      ? { ...report, status: finalStatus, attempt: 6, stage: finalStatus === "failed" ? "preprocessing" : "complete",
        message: finalStatus === "failed" ? "本次启动自检未通过：首次检测及 5 轮重试均失败；编辑器仍可使用"
          : "本次启动自检通过，仿真环境可用（第 5 轮重试成功）",
        error: finalStatus === "failed" ? "命令执行失败" : null, failure: finalStatus === "failed" ? failure : null }
      : { ...report, status: "retrying", attempt, stage: "retry-wait", error: null, failure: null,
        message: `本轮检测未通过，正在准备第 ${attempt}/5 轮重试（间隔 0.5 秒）；编辑器可正常使用` } }));
    await page.goto("/");
    await expandSimulationConsole(page);
    const panel = page.getByRole("complementary", { name: "仿真控制台", exact: true });
    await expect(panel).toContainText("第 1/5 轮重试");
    await expect(panel).not.toContainText("退出码");
    await expect(panel).not.toContainText("CreateProcess");
    await page.getByRole("textbox", { name: "工程", exact: true }).fill("重试时继续编辑");
    attempt = 2;
    await expect(panel).toContainText("第 2/5 轮重试");
    await expect(panel).not.toContainText("错误类型");
    finished = true;
    if (finalStatus === "completed") {
      await expect(panel).toContainText("仿真环境可用（第 5 轮重试成功）");
      await expect(panel).not.toContainText("CreateProcess");
      await expect(panel.locator(".simulation-console-dock-entry.error")).toHaveCount(0);
    } else {
      await expect(panel).toContainText("首次检测及 5 轮重试均失败");
      await expect(panel).toContainText("退出码：1");
      await expect(panel).toContainText("CreateProcess: No such file or directory");
      await expect(panel.locator(".simulation-console-dock-entry.error")).toHaveCount(1);
    }
  });
}

test("finished startup report stops timed polling and is refreshed on focus", async ({ page }) => {
  await prepareApp(page);
  await page.clock.install();
  let requests = 0;
  await page.route("**/api/simulation/runtime-check", route => {
    requests++;
    return route.fulfill({ json: { ...report, status: "completed", stage: "complete",
      message: "本次启动自检通过，仿真环境可用" } });
  });
  await page.goto("/");
  await expandSimulationConsole(page);
  const panel = page.getByRole("complementary", { name: "仿真控制台", exact: true });
  await expect(panel).toContainText("本次启动自检通过");
  const completedRequests = requests;
  await page.clock.runFor(31000);
  expect(requests).toBe(completedRequests);
  await page.evaluate(() => window.dispatchEvent(new Event("focus")));
  await expect.poll(() => requests).toBe(completedRequests + 1);
});