/**
 * 布局回归补齐旧业务 E2E 的视觉盲区：长维护文案、吸顶避让、导航的单一焦点与布局切换清理。
 * 所有内容来自生产已有的本地 HTTP 边界；尺寸断言读取实际 DOM，不检查源码形状。
 */
import assert from "node:assert/strict";
import { test } from "node:test";
import {
  appOrigin,
  backendOrigin,
  eventually,
  login,
  scenario,
} from "./helpers/console-browser.mjs";

const maintenanceMessage =
  "系统正在升级维护，部分业务暂时不可用，请稍后再试。如有紧急问题请联系客服，我们正在尽快恢复服务。";

async function layoutBoundary(
  page,
  { maintenance = true, content = "help" } = {},
) {
  await page
    .context()
    .route(`${backendOrigin}/console/v1/**`, async (route) => {
      const path = new URL(route.request().url()).pathname.replace(
        /^\/console\/v1/,
        "",
      );
      const reply = (data) =>
        route.fulfill({ json: { status: 200, msg: "", data } });
      if (path === "/common") {
        const response = await route.fetch();
        const body = await response.json();
        Object.assign(body.data, {
          maintenance_mode: Number(maintenance),
          maintenance_mode_message: maintenanceMessage,
        });
        return route.fulfill({ response, json: body });
      }
      if (path === "/menu")
        return reply({
          menu: [
            {
              id: 10,
              name: "查看官网",
              menu_type: "custom",
              url: "/official-site",
            },
          ],
        });
      if (path === "/official_site_cms/content") return reply({ content: {} });
      if (path === "/help")
        return reply({
          list: [
            {
              id: 1,
              name: "产品帮助",
              helps: [{ id: 1, title: "维护期间的使用说明" }],
            },
          ],
        });
      if (path === "/help/1")
        return reply({
          help: {
            id: 1,
            title: "维护期间的使用说明",
            content:
              "<p>这是一段正常帮助正文，用于验证长文章滚动后的布局。</p>".repeat(
                80,
              ),
            create_time: 1700000000,
          },
        });
      if (path === "/cart")
        return reply({
          list: Array.from({ length: 14 }, (_, index) => ({
            product_id: 123,
            qty: 1,
            name: `云产品 ${index + 1}`,
            config_options: { cpu: index + 1 },
            customfield: {},
            self_defined_field: {},
          })),
        });
      if (path === "/product/123/config_option")
        return reply({
          price_total: "10.00",
          preview: [{ name: "CPU", value: "2 核" }],
        });
      if (path === "/purchase_limit/check")
        return reply({ allowed: true, message: "" });
      if (path === "/product/123")
        return reply({
          product: {
            id: 123,
            name: "可配置产品",
            module: "idcsmart_common",
            pay_type: "free",
            description: "",
          },
        });
      if (path === "/idcsmart_common/product/123/configoption")
        return reply({
          common_product: { pay_type: "free" },
          configoptions: Array.from({ length: 18 }, (_, index) => ({
            id: index + 1,
            option_name: `扩展资源 ${index + 1}`,
            option_type: "quantity",
            is_show: 1,
            qty_min: 1,
            qty_max: 10,
            qty_change: 1,
          })),
        });
      if (path === "/product/123/self_defined_field/order_page")
        return reply({ data: [] });
      if (path === "/product" && content === "dedicated")
        return reply({
          list: [
            {
              id: 123,
              name: "物理服务器",
              module: "mf_dcim",
              price: "100.00",
              stock_control: 0,
            },
          ],
          count: 1,
        });
      if (path === "/product/123/mf_dcim/order_page")
        return reply({
          model_config: Array.from({ length: 12 }, (_, index) => ({
            id: index + 1,
            name: `机型 ${index + 1}`,
            cpu: "Xeon",
            memory: "32GB",
            disk: "1TB",
          })),
          data_center: [
            {
              name: "中国",
              city: [
                {
                  name: "上海",
                  area: [{ name: "一区", line: [{ id: 1, name: "BGP" }] }],
                },
              ],
            },
          ],
        });
      if (path === "/product/123/mf_dcim/line/1") return reply({});
      return route.fallback();
    });
}

async function bannerGeometry(page) {
  return page.locator(".maintenance-banner").evaluate((banner) => {
    const box = banner.getBoundingClientRect(),
      range = document.createRange();
    range.selectNodeContents(banner.querySelector("span"));
    const text = range.getBoundingClientRect(),
      bar = document.querySelector(".topbar").getBoundingClientRect();
    return {
      top: box.top,
      bottom: box.bottom,
      height: box.height,
      textTop: text.top,
      textBottom: text.bottom,
      topbarTop: bar.top,
      topbarBottom: bar.bottom,
      viewport: innerWidth,
      scrollWidth: document.documentElement.scrollWidth,
    };
  });
}

test(
  "maintenance text and page offsets follow content height and viewport changes",
  { timeout: 30000 },
  (t) =>
    scenario(t, {}, async (page) => {
      await page.emulateMedia({ reducedMotion: "reduce" });
      await page.setViewportSize({ width: 320, height: 740 });
      await layoutBoundary(page);
      await login(page, "/security/ssh-keys");
      await page.locator(".maintenance-banner").waitFor();
      const sizes = [];
      for (const width of [320, 375, 1440, 320]) {
        await page.setViewportSize({ width, height: 740 });
        const state = await eventually(
          () => bannerGeometry(page),
          (state) =>
            state.textTop >= state.top - 0.5 &&
            state.textBottom <= state.bottom + 0.5 &&
            state.topbarTop >= state.bottom - 0.5,
          "The full notice and topbar must occupy separate visible regions",
        );
        assert.equal(
          state.scrollWidth,
          state.viewport,
          "A maintenance notice must not widen the document",
        );
        sizes.push({ width, noticeFits: true, headerBelowNotice: true });
      }
      await page.getByRole("button", { name: "打开菜单", exact: true }).click();
      const menuVisible = await page
        .getByRole("button", { name: "关闭菜单", exact: true })
        .evaluate((button) => {
          const r = button.getBoundingClientRect(),
            hit = document.elementFromPoint(
              r.left + r.width / 2,
              r.top + r.height / 2,
            );
          return button.contains(hit);
        });
      assert.ok(
        menuVisible,
        "The notice must not cover the drawer close button",
      );
      await page.keyboard.press("Escape");
      return { sizes, drawerCloseReachable: true };
    }),
);

for (const [name, path, selector] of [
  ["help", "/help/article?id=1", ".help-nav"],
  ["cart", "/cart", ".cart-foot"],
  ["dedicated", "/products/dedicated-server", ".catalog-lines"],
  ["configuration", "/products/123", ".config-summary-wrap"],
]) {
  test(
    `maintenance sticky ${name} clears the actual fixed header`,
    { timeout: 30000 },
    (t) =>
      scenario(t, {}, async (page) => {
        await page.emulateMedia({ reducedMotion: "reduce" });
        await page.setViewportSize({ width: 1440, height: 800 });
        await layoutBoundary(page, { content: name });
        await login(page, path);
        if (name === "dedicated")
          await page
            .getByRole("button", { name: "选择线路", exact: true })
            .first()
            .click();
        await page.locator(selector).waitFor();
        await page.evaluate(() => window.scrollTo(0, 500));
        const state = await eventually(
          () =>
            page.locator(selector).evaluate((el) => {
              const r = el.getBoundingClientRect(),
                bar = document.querySelector(".topbar").getBoundingClientRect();
              const hit = document.elementFromPoint(r.left + 10, r.top + 5);
              return {
                scrollY,
                top: r.top,
                headerBottom: bar.bottom,
                unobscured: el.contains(hit),
                sticky: getComputedStyle(el).position,
              };
            }),
          (state) =>
            state.scrollY > 0 &&
            state.top >= state.headerBottom - 0.5 &&
            state.unobscured,
          "Sticky content must remain below, not behind, the header",
        );
        assert.equal(
          state.sticky,
          "sticky",
          "The test must exercise the sticky state",
        );
        return {
          stickyReached: true,
          headerCleared: true,
          hitTestUnobscured: true,
        };
      }),
  );
}

test(
  "console layout releases its measured offsets when navigating to the official site",
  { timeout: 30000 },
  (t) =>
    scenario(t, {}, async (page) => {
      await page.setViewportSize({ width: 1680, height: 900 });
      await layoutBoundary(page);
      await page.goto(`${appOrigin}/official-site`);
      await page.locator(".official-site").waitFor();
      const toastTop = () =>
        page
          .locator(".operation-toasts")
          .evaluate((el) => parseFloat(getComputedStyle(el).top));
      const outsideConsoleTop = await toastTop();
      await login(page, "/help/article?id=1");
      const consoleTop = await eventually(
        toastTop,
        (top) => top > outsideConsoleTop,
        "Global notifications must clear the maintenance header",
      );
      await page.getByRole("link", { name: "查看官网", exact: true }).click();
      await page.locator(".official-site").waitFor();
      await eventually(
        toastTop,
        (top) => Math.abs(top - outsideConsoleTop) < 0.5,
        "Console geometry must not leak after the console layout unmounts",
      );
      return {
        notificationClearedConsole: consoleTop > outsideConsoleTop,
        officialLayoutRestored: true,
      };
    }),
);

for (const [path, name] of [
  ["/cloud-servers", "订购云服务器"],
  ["/dedicated-servers", "订购物理服务器"],
  ["/tickets", "创建工单"],
]) {
  test(
    `navigation action has one keyboard stop on ${path}`,
    { timeout: 25000 },
    (t) =>
      scenario(t, {}, async (page) => {
        await login(page, path);
        const links = page.getByRole("link", { name, exact: true });
        await links.first().waitFor();
        for (const link of await links.all()) {
          assert.equal(
            await link
              .locator("button,a[href],input,select,textarea,[tabindex='0']")
              .count(),
            0,
            "A navigation action must not contain another focusable control",
          );
          await link.focus();
          await page.keyboard.press("Tab");
          assert.equal(
            await link.evaluate((el) => el.contains(document.activeElement)),
            false,
            "Tab must move on from the action, not enter it a second time",
          );
        }
        return {
          navigationActions: await links.count(),
          singleKeyboardStop: true,
        };
      }),
  );
}