// META: spec=https://w3c.github.io/payment-method-manifest/#fetch-pmm
// META: title=Link header RFC 8288 parsing rules
// META: script=/common/utils.js
// META: script=/payment-method-manifest/resources/helpers.js

promise_test(async t => {
  const testId = token();
  const manifestUrl = createPaymentMethodManifestUrl(testId);
  const pmiUrl = createPaymentMethodIdentifierUrl(
      testId, {link: `<${manifestUrl}>; rel=payment-method-manifest`});

  const request = new PaymentRequest(
      [{supportedMethods: pmiUrl}],
      {total: {label: 'Total', amount: {currency: 'USD', value: '1.00'}}});

  try {
    await request.canMakePayment();
  } catch (err) {
  }

  const logs = await waitForServerAccessLogs(t, testId, 2);

  assert_equals(
      logs.length, 2,
      'Browser must issue exactly 2 server requests (HEAD for PMI, GET for Manifest)');
  assert_equals(logs[0].endpoint, 'payment-method-identifier',
                'First request must hit PMI URL');
  assert_equals(logs[0].method, 'HEAD', 'PMI request must use HEAD method');
  assert_equals(logs[1].endpoint, 'payment-method-manifest',
                'Second request must hit manifest URL');
  assert_equals(logs[1].method, 'GET', 'Manifest request must use GET method');
}, 'Link header rel parameter supports unquoted values per RFC 8288');

promise_test(async t => {
  const testId = token();
  const manifestUrl = createPaymentMethodManifestUrl(testId);
  const pmiUrl = createPaymentMethodIdentifierUrl(
      testId, {link: `<${manifestUrl}>; rel="other payment-method-manifest"`});

  const request = new PaymentRequest(
      [{supportedMethods: pmiUrl}],
      {total: {label: 'Total', amount: {currency: 'USD', value: '1.00'}}});

  try {
    await request.canMakePayment();
  } catch (err) {
  }

  const logs = await waitForServerAccessLogs(t, testId, 2);

  assert_equals(
      logs.length, 2,
      'Browser must issue exactly 2 server requests (HEAD for PMI, GET for Manifest)');
  assert_equals(logs[0].endpoint, 'payment-method-identifier',
                'First request must hit PMI URL');
  assert_equals(logs[0].method, 'HEAD', 'PMI request must use HEAD method');
  assert_equals(logs[1].endpoint, 'payment-method-manifest',
                'Second request must hit manifest URL');
  assert_equals(logs[1].method, 'GET', 'Manifest request must use GET method');
}, 'Link header rel attribute supports space-separated relation tokens per RFC 8288');

promise_test(async t => {
  const testId = token();
  const manifestUrl = createPaymentMethodManifestUrl(testId);
  const pmiUrl = createPaymentMethodIdentifierUrl(
      testId, {link: `<${manifestUrl}>; rel="PAYMENT-METHOD-MANIFEST"`});

  const request = new PaymentRequest(
      [{supportedMethods: pmiUrl}],
      {total: {label: 'Total', amount: {currency: 'USD', value: '1.00'}}});

  try {
    await request.canMakePayment();
  } catch (err) {
  }

  const logs = await waitForServerAccessLogs(t, testId, 2);

  assert_equals(
      logs.length, 2,
      'Browser must issue exactly 2 server requests (HEAD for PMI, GET for Manifest)');
  assert_equals(logs[0].endpoint, 'payment-method-identifier',
                'First request must hit PMI URL');
  assert_equals(logs[0].method, 'HEAD', 'PMI request must use HEAD method');
  assert_equals(logs[1].endpoint, 'payment-method-manifest',
                'Second request must hit manifest URL');
  assert_equals(logs[1].method, 'GET', 'Manifest request must use GET method');
}, 'Link header rel parameter matching is ASCII case-insensitive');

promise_test(async t => {
  const testId = token();
  const manifestUrl = createPaymentMethodManifestUrl(testId);
  const pmiUrl = createPaymentMethodIdentifierUrl(
      testId,
      {link: `<${manifestUrl}>; rel="payment-method-manifest"; foo=bar`});

  const request = new PaymentRequest(
      [{supportedMethods: pmiUrl}],
      {total: {label: 'Total', amount: {currency: 'USD', value: '1.00'}}});

  try {
    await request.canMakePayment();
  } catch (err) {
  }

  const logs = await waitForServerAccessLogs(t, testId, 2);

  assert_equals(
      logs.length, 2,
      'Browser must issue exactly 2 server requests (HEAD for PMI, GET for Manifest)');
  assert_equals(logs[0].endpoint, 'payment-method-identifier',
                'First request must hit PMI URL');
  assert_equals(logs[0].method, 'HEAD', 'PMI request must use HEAD method');
  assert_equals(logs[1].endpoint, 'payment-method-manifest',
                'Second request must hit manifest URL');
  assert_equals(logs[1].method, 'GET', 'Manifest request must use GET method');
}, 'Link header with additional parameters is parsed correctly');

promise_test(async t => {
  const testId = token();
  const manifestUrl = createPaymentMethodManifestUrl(testId);
  const otherUrl = new URL('resources/other.json', location.href).href;
  const pmiUrl = createPaymentMethodIdentifierUrl(testId, {
    link: `<${otherUrl}>; rel="other", <${
        manifestUrl}>; rel="payment-method-manifest"`,
  });

  const request = new PaymentRequest(
      [{supportedMethods: pmiUrl}],
      {total: {label: 'Total', amount: {currency: 'USD', value: '1.00'}}});

  try {
    await request.canMakePayment();
  } catch (err) {
  }

  const logs = await waitForServerAccessLogs(t, testId, 2);

  assert_equals(
      logs.length, 2,
      'Browser must issue exactly 2 server requests (HEAD for PMI, GET for Manifest)');
  assert_equals(logs[0].endpoint, 'payment-method-identifier',
                'First request must hit PMI URL');
  assert_equals(logs[0].method, 'HEAD', 'PMI request must use HEAD method');
  assert_equals(logs[1].endpoint, 'payment-method-manifest',
                'Second request must hit correct manifest URL');
  assert_equals(logs[1].method, 'GET', 'Manifest request must use GET method');
}, 'Link header with comma-separated targets correctly identifies payment-method-manifest link');