import { expect, type Page } from "@playwright/test";

import type { E2EUser } from "./auth";

export type LiveInvoiceOcrStatus = "available" | "ocr_failed";

export type LiveInvoiceOcrResult = {
  status: LiveInvoiceOcrStatus;
  detailText: string;
  bannerText: string;
  durationMs: number;
  invoiceId: string | null;
  invoiceCode: string | null;
  invoiceNumber: string | null;
  sellerName: string | null;
  totalAmount: string | null;
  invoiceDate: string | null;
};

type UploadInvoiceResponse = {
  data?: {
    invoicePoolId?: string | null;
    status?: string | null;
    uploadAction?: string | null;
    unavailableReason?: string | null;
    unavailableMessage?: string | null;
    availabilityReason?: string | null;
    availabilityMessage?: string | null;
  };
};

function extractField(detailText: string, label: string) {
  const escaped = label.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
  const match = detailText.match(new RegExp(`${escaped}([^\\n]+)`));
  return match?.[1]?.trim() || null;
}

export function resolveLiveOcrUser(fallback: E2EUser): E2EUser {
  const identifier =
    process.env.PLAYWRIGHT_OCR_LIVE_IDENTIFIER?.trim() ||
    process.env.LIVE_SMOKE_EMPLOYEE_IDENTIFIER?.trim() ||
    "";
  const password =
    process.env.PLAYWRIGHT_OCR_LIVE_PASSWORD?.trim() ||
    process.env.LIVE_SMOKE_EMPLOYEE_PASSWORD?.trim() ||
    "";

  if (!identifier && !password) {
    return fallback;
  }

  if (!identifier || !password) {
    throw new Error("PLAYWRIGHT_OCR_LIVE_IDENTIFIER/PASSWORD 或 LIVE_SMOKE_EMPLOYEE_* 必须成对提供");
  }

  return {
    identifier,
    password,
    name: process.env.PLAYWRIGHT_OCR_LIVE_NAME?.trim() || "Smoke Employee",
  };
}

export async function openInvoicePool(page: Page) {
  await page.goto("/invoice-pool");
  await expect(page.getByTestId("invoice-pool-table")).toBeVisible();
}

export async function uploadLiveInvoiceAndWait(page: Page, invoiceFilePath: string, timeout = 180_000): Promise<LiveInvoiceOcrResult> {
  const startedAt = Date.now();

  const uploadResponsePromise = page.waitForResponse((response) => {
    const url = new URL(response.url());
    return response.request().method() === "POST" && url.pathname === "/api/invoice-pool/upload" && response.ok();
  });
  await page.getByTestId("invoice-upload-file").setInputFiles(invoiceFilePath);
  await page.getByTestId("invoice-upload-submit").click();
  const uploadPayload = (await (await uploadResponsePromise).json()) as UploadInvoiceResponse;
  const uploadData = uploadPayload.data;
  const uploadedInvoiceId = uploadData?.invoicePoolId ?? null;

  if (!uploadedInvoiceId) {
    const message =
      uploadData?.unavailableMessage ??
      uploadData?.availabilityMessage ??
      uploadData?.unavailableReason ??
      uploadData?.availabilityReason ??
      "发票上传未生成新票据";
    const reason = uploadData?.unavailableReason ?? uploadData?.availabilityReason ?? uploadData?.uploadAction ?? "-";
    const detailText = [
      "票据上传结果",
      "状态：识别失败",
      `文件名：${invoiceFilePath.split(/[\\/]/).pop() ?? invoiceFilePath}`,
      `上传动作：${uploadData?.uploadAction ?? "-"}`,
      `原因：${reason}`,
      `提示：${message}`,
    ].join("\n");

    return {
      status: "ocr_failed",
      detailText,
      bannerText: message,
      durationMs: Date.now() - startedAt,
      invoiceId: null,
      invoiceCode: null,
      invoiceNumber: null,
      sellerName: null,
      totalAmount: null,
      invoiceDate: null,
    };
  }

  const detailPanel = page.getByTestId("invoice-detail-panel");
  await expect(detailPanel).toBeVisible({ timeout: 30_000 });

  try {
    await expect
      .poll(async () => {
        const text = await detailPanel.innerText().catch(() => "");
        if (text.includes("状态：available") || text.includes("状态：可用")) return "available";
        if (text.includes("状态：ocr_failed") || text.includes("状态：识别失败")) return "ocr_failed";
        return "pending_ocr";
      }, { timeout })
      .toMatch(/^(available|ocr_failed)$/);
  } catch (error) {
    const detailText = await detailPanel.innerText().catch(() => "");
    const bannerText = await page.getByTestId("invoice-ocr-status-banner").innerText().catch(() => "");
    const invoiceId = uploadedInvoiceId ?? extractField(detailText, "票据ID：");
    throw new Error(
      [
        "live 腾讯 OCR 等待终态超时",
        `invoiceId=${invoiceId ?? "unknown"}`,
        `timeoutMs=${timeout}`,
        `detail=${detailText || "<empty>"}`,
        `banner=${bannerText || "<empty>"}`,
        `cause=${error instanceof Error ? error.message : String(error)}`,
      ].join("\n"),
    );
  }

  const detailText = await detailPanel.innerText();
  const bannerText = await page.getByTestId("invoice-ocr-status-banner").innerText().catch(() => "");
  const status = detailText.includes("状态：ocr_failed") || detailText.includes("状态：识别失败") ? "ocr_failed" : "available";
  const invoiceNo = extractField(detailText, "发票号：") ?? extractField(detailText, "发票号码：");
  const [invoiceCode, invoiceNumber] = invoiceNo && invoiceNo.includes("-")
    ? invoiceNo.split("-", 2).map((item) => item.trim() || null)
    : [invoiceNo, null];

  return {
    status,
    detailText,
    bannerText,
    durationMs: Date.now() - startedAt,
    invoiceId: uploadedInvoiceId ?? extractField(detailText, "票据ID："),
    invoiceCode,
    invoiceNumber,
    sellerName: extractField(detailText, "销售方："),
    totalAmount: extractField(detailText, "总金额："),
    invoiceDate: extractField(detailText, "开票日期："),
  };
}