import type { Page } from '@playwright/test';
import fs from 'node:fs/promises';

import { dismissConsentBanner, expectFixture as expect, test } from '../helpers/test-fixtures';

const shouldRun =
  process.env.E2E_PAYPAL_SANDBOX === '1' ||
  process.env.E2E_LEMONSQUEEZY_SANDBOX === '1' ||
  process.env.E2E_PADDLE_SANDBOX === '1';
const baseUrl = process.env.E2E_BASE_URL ?? 'https://test-y0k0.fotospiel.app';
const locale = process.env.E2E_LOCALE ?? 'de';
const checkoutSlug = locale === 'en' ? 'checkout' : 'bestellen';
const tenantEmail = buildTenantEmail();
const tenantPassword = process.env.E2E_TENANT_PASSWORD ?? null;

test.use({
  channel: process.env.E2E_BROWSER_CHANNEL ?? 'chrome',
  userAgent:
    process.env.E2E_USER_AGENT ??
    'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36',
  launchOptions: {
    args: ['--disable-blink-features=AutomationControlled'],
  },
});

test.describe('PayPal sandbox full flow (staging)', () => {
  test.skip(!shouldRun, 'Set E2E_PAYPAL_SANDBOX=1 to run sandbox checkout on staging.');
  test.skip(!tenantEmail || !tenantPassword, 'Set E2E_TENANT_EMAIL and E2E_TENANT_PASSWORD for sandbox flow.');

  test('register, simulate PayPal completion, and login to event admin', async ({ page }, testInfo) => {
    const paypalNetworkLog: string[] = [];

    page.on('response', async (response) => {
      const url = response.url();
      if (!/paypal/i.test(url)) {
        return;
      }

      const status = response.status();
      let bodySnippet = '';
      if (status >= 400 || /checkout|error/i.test(url)) {
        try {
          const text = await response.text();
          bodySnippet = text.trim().slice(0, 2000);
        } catch {
          bodySnippet = '';
        }
      }

      const entry = [`[${status}] ${url}`, bodySnippet].filter(Boolean).join('
');
      paypalNetworkLog.push(entry);
      if (paypalNetworkLog.length > 40) {
        paypalNetworkLog.shift();
      }
    });

    await page.addInitScript(() => {
      Object.defineProperty(navigator, 'webdriver', {
        get: () => undefined,
      });
    });

    await page.route('https://www.paypal.com/sdk/js**', async (route) => {
      await route.fulfill({
        status: 200,
        contentType: 'application/javascript',
        body: `
          window.paypal = {
            Buttons: function(options) {
              window.__paypalOptions = options;
              return {
                render: function() { return Promise.resolve(); },
              };
            },
          };
        `,
      });
    });

    await page.route('**/paypal/create-order', async (route) => {
      await route.fulfill({
        status: 200,
        contentType: 'application/json',
        body: JSON.stringify({
          order_id: 'order_test_123',
          checkout_session_id: 'session_test_123',
        }),
      });
    });

    await page.route('**/paypal/capture-order', async (route) => {
      await route.fulfill({
        status: 200,
        contentType: 'application/json',
        body: JSON.stringify({
          status: 'completed',
        }),
      });
    });

    try {
      await page.goto(`${baseUrl}/${locale}/${checkoutSlug}/2`);

      await dismissConsentBanner(page);

      await proceedToAccountStep(page);

      await completeRegistrationOrLogin(page, {
        email: tenantEmail!,
        password: tenantPassword!,
      });

      const termsCheckbox = page.locator('#checkout-terms-hero');
      await expect(termsCheckbox).toBeVisible();
      await termsCheckbox.click();

      await expect.poll(async () => {
        return page.evaluate(() => Boolean(window.__paypalOptions));
      }).toBe(true);

      await page.evaluate(async () => {
        await window.__paypalOptions?.createOrder?.();
        await window.__paypalOptions?.onApprove?.({ orderID: 'order_test_123' });
      });

      await expect(page.getByText(/Marketing-Dashboard/)).toBeVisible();

      await page.goto(`${baseUrl}/event-admin/login`);
      await dismissConsentBanner(page);

      await page.locator('input[name="identifier"]').fill(tenantEmail!);
      await page.locator('input[name="password"]').fill(tenantPassword!);
      await page.getByRole('button', { name: /Anmelden|Login/i }).click();

      await expect(page).toHaveURL(/\/event-admin\/mobile\/(dashboard|welcome)/i, { timeout: 30_000 });
      await expect(page.getByText(/Dashboard|Willkommen/i)).toBeVisible();
    } finally {
      if (paypalNetworkLog.length > 0) {
        const logPath = testInfo.outputPath('paypal-network-log.txt');
        await fs.writeFile(logPath, paypalNetworkLog.join('

'), 'utf8');
        await testInfo.attach('paypal-network-log', {
          path: logPath,
          contentType: 'text/plain',
        });
      }
    }
  });
});

async function completeRegistrationOrLogin(page: Page, credentials: { email: string; password: string }): Promise<void> {
  const identifierInput = page.locator('input[name="identifier"]');
  if (await identifierInput.isVisible()) {
    await identifierInput.fill(credentials.email);
    await page.locator('input[name="password"]').fill(credentials.password);
    await page.getByRole('button', { name: /^Anmelden$|Login/i }).last().click();
    await expect(page.getByPlaceholder(/Gutscheincode|Coupon/i)).toBeVisible({ timeout: 20_000 });
    return;
  }

  await page.fill('input[name="first_name"]', 'Play');
  await page.fill('input[name="last_name"]', 'Wright');
  await page.fill('input[name="email"]', credentials.email);
  const addressInput = page.locator('input[name="address"]');
  if (await addressInput.isVisible()) {
    await addressInput.fill('Teststrasse 1, 12345 Berlin');
  }

  const phoneInput = page.locator('input[name="phone"]');
  if (await phoneInput.isVisible()) {
    await phoneInput.fill('+49123456789');
  }

  const usernameInput = page.locator('input[name="username"]');
  if (await usernameInput.isVisible()) {
    await usernameInput.fill(credentials.email);
  }
  await page.fill('input[name="password"]', credentials.password);
  await page.fill('input[name="password_confirmation"]', credentials.password);

  await page.check('input[name="privacy_consent"]');
  await page.getByRole('button', { name: /Registrieren|Register/i }).last().click();

  try {
    await expect(page.getByPlaceholder(/Gutscheincode|Coupon/i)).toBeVisible({ timeout: 20_000 });
    return;
  } catch {
    const loginButton = page.getByRole('button', { name: /^Anmelden$|Login/i }).first();
    if (await loginButton.isVisible()) {
      await loginButton.click();
    }
  }

  await expect(page.locator('input[name="identifier"]')).toBeVisible({ timeout: 10_000 });
  await page.locator('input[name="identifier"]').fill(credentials.email);
  await page.locator('input[name="password"]').fill(credentials.password);
  await page.getByRole('button', { name: /^Anmelden$|Login/i }).last().click();
  await expect(page.getByPlaceholder(/Gutscheincode|Coupon/i)).toBeVisible({ timeout: 20_000 });
}

async function proceedToAccountStep(page: Page, timeoutMs = 30_000): Promise<void> {
  const deadline = Date.now() + timeoutMs;

  while (Date.now() < deadline) {
    const accountForm = page.locator('input[name="first_name"], input[name="identifier"]');
    if (await accountForm.isVisible()) {
      return;
    }

    await dismissConsentBanner(page);

    const continueButton = page.getByRole('button', { name: /Weiter|Continue/i }).first();
    if (await continueButton.isVisible()) {
      if (await continueButton.isEnabled()) {
        await continueButton.click();
      }
    }

    await page.waitForTimeout(500);
  }

  throw new Error('Account step did not load in time.');
}

function buildTenantEmail(): string | null {
  const rawEmail = process.env.E2E_TENANT_EMAIL ?? process.env.E2E_PAYPAL_EMAIL ?? process.env.E2E_LEMONSQUEEZY_EMAIL ?? process.env.E2E_PADDLE_EMAIL ?? null;
  if (!rawEmail) {
    return null;
  }

  if (!rawEmail.includes('{timestamp}')) {
    return rawEmail;
  }

  const timestamp = Math.floor(Date.now() / 1000).toString();
  return rawEmail.replaceAll('{timestamp}', timestamp);
}

declare global {
  interface Window {
    __paypalOptions?: {
      createOrder?: () => Promise<string>;
      onApprove?: (data: { orderID: string }) => Promise<void>;
    };
  }
}