const { chromium } = require("playwright-core");

const BASE = process.env.QA_BASE_URL || "http://127.0.0.1:5175/";
const SHOTS = process.env.QA_SHOTS || "/tmp/opencode/fund-lab-qa-screens";
const EXE = "/home/somhairle/.cache/ms-playwright/chromium-1243/chrome-linux64/chrome";

const results = [];
const consoleErrors = [];
const fundPosts = [];
let fundPostResponses = 0;
let fundGets = 0;
let createdFund = null;
let createdFundResponse = null;

function check(name, ok, detail) {
  results.push({ name, ok, detail: detail || "" });
  console.log(`${ok ? "PASS" : "FAIL"}  ${name}${detail ? "  -- " + detail : ""}`);
}

async function expectText(page, selector, expected, name, timeout = 10000) {
  try {
    await page.waitForSelector(selector, { timeout });
    await page.waitForFunction(
      ({ sel, want }) => {
        const el = document.querySelector(sel);
        return el !== null && (el.textContent || "").trim() === want;
      },
      { sel: selector, want: expected },
      { timeout }
    );
    check(name, true);
  } catch (e) {
    let got = "";
    try {
      got = ((await page.textContent(selector)) || "").trim();
    } catch {}
    check(name, false, `got="${got}" want="${expected}"`);
  }
}

async function summaryValue(page, label, expected, name) {
  try {
    await page.waitForFunction(
      ({ want }) => {
        const rows = Array.from(document.querySelectorAll(".fund-detail-row"));
        return rows.some((r) => {
          const l = r.querySelector(".fund-detail-label");
          const v = r.querySelector(".fund-detail-value");
          return l && v && (l.textContent || "").trim() === want.label && (v.textContent || "").trim() === want.value;
        });
      },
      { want: { label, value: expected } },
      { timeout: 10000 }
    );
    check(name, true);
  } catch (e) {
    check(name, false, `summary row ${label} != "${expected}"`);
  }
}

async function summaryLabelExists(page, label, name) {
  try {
    await page.waitForFunction(
      (want) => {
        const rows = Array.from(document.querySelectorAll(".fund-detail-row"));
        return rows.some((r) => (r.querySelector(".fund-detail-label")?.textContent || "").trim() === want);
      },
      label,
      { timeout: 10000 }
    );
    check(name, true);
  } catch (e) {
    check(name, false, `summary row ${label} missing`);
  }
}

(async () => {
  const browser = await chromium.launch({
    executablePath: EXE,
    headless: true,
    args: ["--no-sandbox", "--disable-dev-shm-usage"],
  });
  const page = await browser.newPage({ viewport: { width: 1440, height: 1100 } });
  page.on("pageerror", (e) => consoleErrors.push("pageerror: " + e.message));
  page.on("response", async (r) => {
    if (r.url().includes("/api/funds") && r.request().method() === "POST" && r.status() < 400) {
      fundPostResponses++;
      try {
        if (!createdFundResponse) createdFundResponse = await r.json();
      } catch {}
    }
    if (r.url().includes("/api/funds/") && r.request().method() === "GET" && r.status() < 400) fundGets++;
    if (r.status() >= 400 && !/\/api\/instruments\//.test(r.url())) {
      consoleErrors.push("resource " + r.status() + ": " + r.url());
    }
  });
  page.on("request", (r) => {
    if (r.url().includes("/api/funds") && r.method() === "POST") {
      fundPosts.push({ url: r.url(), key: r.headers()["idempotency-key"] || "", body: r.postData() || "" });
    }
  });
  page.on("console", (m) => {
    if (m.type() !== "error") return;
    const text = m.text();
    if (/favicon/i.test(text)) return;
    if (/401 \(Unauthorized\)/.test(text)) return;
    if (/Failed to load resource/.test(text) && !text.includes("api/")) return;
    consoleErrors.push("console: " + text);
  });

  try {
    await page.goto(BASE, { waitUntil: "networkidle", timeout: 30000 });

    await expectVisibleFundPanel(page);
    await validationScenario(page);
    await createScenario(page);
    await rereadScenario(page);
    await staleTokenScenario(page);
    await idempotentRetryScenario(page);
  } finally {
    check("G1 无浏览器控制台/页面错误", consoleErrors.length === 0, consoleErrors.slice(0, 3).join(" | "));
    await browser.close();
  }

  const failed = results.filter((r) => !r.ok);
  console.log(`\n==== ${results.length - failed.length}/${results.length} passed ====`);
  process.exit(failed.length > 0 ? 1 : 0);
})().catch((e) => {
  console.error("QA driver crashed:", e);
  process.exit(2);
});

async function expectVisibleFundPanel(page) {
  await page.waitForSelector(".fund-panel", { timeout: 15000 });
  await page.waitForSelector(".fund-name-input", { timeout: 10000 });
  await page.waitForSelector(".fund-cash-input", { timeout: 10000 });
  check("A1 初始渲染: 创建面板/名称/现金输入框", true);
  const eyebrow = ((await page.textContent(".fund-panel .eyebrow")) || "").trim();
  check("A2 面板 eyebrow 为 03 / CREATE", eyebrow === "03 / CREATE", eyebrow);
  const btn = ((await page.textContent(".fund-create-action")) || "").trim();
  check("A3 创建按钮初始为 创建基金", btn === "创建基金", btn);
  const summaryCount = await page.locator(".fund-summary").count();
  check("A4 初始无基金档案", summaryCount === 0, `count=${summaryCount}`);
  await page.screenshot({ path: SHOTS + "/01-initial.png" });
}

async function validationScenario(page) {
  await page.fill(".token-input", "qa-token");
  await page.fill(".fund-name-input", "");
  await page.fill(".fund-cash-input", "");
  await page.click(".fund-create-action");
  await expectText(page, ".error-banner", "请输入基金名称", "B1 空名称校验提示");

  await page.fill(".fund-name-input", "稳健一号");
  await page.fill(".fund-cash-input", "abc");
  await page.click(".fund-create-action");
  await expectText(
    page,
    ".error-banner",
    "初始现金必须是合法金额，例如 10000.00",
    "B2 非法金额校验提示"
  );

  await page.fill(".fund-cash-input", "-5.00");
  await page.click(".fund-create-action");
  const negativeBlocked = await page
    .waitForSelector(".error-banner", { timeout: 5000 })
    .then(() => true)
    .catch(() => false);
  check("B3 负数金额被拒绝", negativeBlocked, "banner presence");
  check("B4 校验阶段无 POST /api/funds", fundPosts.length === 0, `posts=${fundPosts.length}`);
  await page.screenshot({ path: SHOTS + "/02-validation.png" });
}

async function createScenario(page) {
  await page.fill(".fund-name-input", "稳健一号");
  await page.fill(".fund-cash-input", "12345.67");
  await page.evaluate(() => {
    const btn = document.querySelector(".fund-create-action");
    btn.click();
    btn.click();
  });
  await page.waitForSelector(".fund-summary", { timeout: 15000 });

  check("C1 创建阶段恰好 1 次 POST（双击防护）", fundPosts.length === 1, `posts=${fundPosts.length}`);
  const post = fundPosts[0] || { key: "", body: "" };
  check("C2 幂等键为 32 位十六进制", /^[0-9a-f]{32}$/.test(post.key), post.key);
  let body = {};
  try {
    body = JSON.parse(post.body);
  } catch {}
  check(
    "C3 请求体金额为 decimal 字符串",
    body.initialCash === "12345.67" && body.initialUnitNav === "1.00000000",
    post.body.slice(0, 200)
  );
  check("C4 请求体 isSynthetic=false", body.isSynthetic === false, String(body.isSynthetic));
  check("C5 请求体名称为 稳健一号", body.name === "稳健一号", String(body.name));

  await summaryLabelExists(page, "基金ID", "C6 档案含基金ID");
  await summaryValue(page, "初始现金", "12345.67", "C7 初始现金 12345.67");
  await summaryValue(page, "初始单位净值", "1.00000000", "C8 初始单位净值 1.00000000");
  await summaryValue(page, "份额", "0（新基金尚未买入持仓）", "C9 份额诚实显示 0");
  await summaryValue(page, "数据来源", "真实建档", "C10 数据来源为 真实建档");

  createdFund = { id: body.id || "", name: "稳健一号" };
  try {
    const idRow = await page.locator(".fund-detail-row", { hasText: "基金ID" }).first().textContent();
    const m = /[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}/i.exec(idRow || "");
    if (m) createdFund.id = m[0];
  } catch {}
  check(
    "C11 已捕获完整档案响应载荷",
    !!(createdFundResponse && createdFundResponse.id && createdFundResponse.name && createdFundResponse.availableCash),
    JSON.stringify(createdFundResponse || {}).slice(0, 160)
  );
  await page.screenshot({ path: SHOTS + "/03-created.png" });
}

async function rereadScenario(page) {
  await page.click(".fund-read-action");
  await expectText(page, ".fund-read-action", "重新读取", "D1 重新读取完成按钮恢复", 15000);
  check("D2 重新读取恰好 1 次 GET", fundGets === 1, `gets=${fundGets}`);
  await summaryValue(page, "可用现金", "12345.67", "D3 重读后可用现金 12345.67");
  await page.screenshot({ path: SHOTS + "/04-reread.png" });
}

async function staleTokenScenario(page) {
  check(
    "E0 延迟响应使用完整档案载荷",
    !!(createdFundResponse && createdFundResponse.id && createdFundResponse.name && createdFundResponse.availableCash),
    JSON.stringify(createdFundResponse || {}).slice(0, 160)
  );
  await page.route("**/api/funds/*", async (route) => {
    await new Promise((r) => setTimeout(r, 1200));
    await route.fulfill({
      status: 200,
      contentType: "application/json",
      body: JSON.stringify(createdFundResponse || createdFund || {}),
    });
  });
  await page.click(".fund-read-action");
  await page.fill(".token-input", "qa-token-rotated");
  await page.waitForSelector(".fund-summary", { state: "detached", timeout: 10000 });
  check("E1 换 token 立即清空基金档案", true);
  await page.waitForTimeout(1800);
  const summaryAfter = await page.locator(".fund-summary").count();
  check("E2 延迟响应落地后档案仍被清除（stale 忽略）", summaryAfter === 0, `count=${summaryAfter}`);
  await page.unroute("**/api/funds/*");
  await page.fill(".token-input", "qa-token");
  await page.screenshot({ path: SHOTS + "/05-stale-token.png" });
}

async function idempotentRetryScenario(page) {
  let aborted = false;
  await page.route("**/api/funds", async (route) => {
    if (!aborted) {
      aborted = true;
      await route.abort("failed");
    } else {
      await route.continue();
    }
  });

  await page.fill(".fund-name-input", "稳健二号");
  await page.fill(".fund-cash-input", "20000.00");
  await page.click(".fund-create-action");
  await page.waitForSelector(".error-banner", { timeout: 15000 });
  const failedKey = fundPosts[fundPosts.length - 1]?.key || "";
  check("F1 首次 POST 失败显示错误横幅", true);

  await page.click(".fund-create-action");
  await page.waitForSelector(".fund-summary", { timeout: 15000 });
  const retryKey = fundPosts[fundPosts.length - 1]?.key || "";
  check("F2 重试复用同一 Idempotency-Key", failedKey !== "" && failedKey === retryKey, `${failedKey} vs ${retryKey}`);
  check("F3 失败后恰好 2 次 POST", fundPosts.length === 3, `posts=${fundPosts.length}`);
  await summaryValue(page, "名称", "稳健二号", "F4 重试成功档案为 稳健二号");
  await page.unroute("**/api/funds");
  await page.screenshot({ path: SHOTS + "/06-idempotent-retry.png" });
}