var path = "/tests/dom/xhr/tests/";

var passFiles = [
  ["file_XHR_pass1.xml", "GET", 200, "OK", "text/xml"],
  ["file_XHR_pass2.txt", "GET", 200, "OK", "text/plain"],
  ["file_XHR_pass3.txt", "GET", 200, "OK", "text/plain"],
];

function testURL() {
  var promises = [];
  passFiles.forEach(function (entry) {
    var p = fetch(path + entry[0]).then(function (res) {
      ok(
        res.type !== "error",
        "Response should not be an error for " + entry[0]
      );
      is(res.status, entry[2], "Status should match expected for " + entry[0]);
      is(
        res.statusText,
        entry[3],
        "Status text should match expected for " + entry[0]
      );
      if (entry[0] != "file_XHR_pass3.txt") {
        ok(
          res.url.endsWith(path + entry[0]),
          "Response url should match request for simple fetch for " + entry[0]
        );
      } else {
        ok(
          res.url.endsWith(path + "file_XHR_pass2.txt"),
          "Response url should match request for simple fetch for " + entry[0]
        );
      }
      is(
        res.headers.get("content-type"),
        entry[4],
        "Response should have content-type for " + entry[0]
      );
    });
    promises.push(p);
  });

  return Promise.all(promises);
}

var failFiles = [["ftp://localhost" + path + "file_XHR_pass1.xml", "GET"]];

function testURLFail() {
  var promises = [];
  failFiles.forEach(function (entry) {
    var p = fetch(entry[0]).then(
      function (res) {
        ok(false, "Response should be an error for " + entry[0]);
      },
      function (e) {
        ok(
          e instanceof TypeError,
          "Response should be an error for " + entry[0]
        );
      }
    );
    promises.push(p);
  });

  return Promise.all(promises);
}

function testRequestGET() {
  var promises = [];
  passFiles.forEach(function (entry) {
    var req = new Request(path + entry[0], { method: entry[1] });
    var p = fetch(req).then(function (res) {
      ok(
        res.type !== "error",
        "Response should not be an error for " + entry[0]
      );
      is(res.status, entry[2], "Status should match expected for " + entry[0]);
      is(
        res.statusText,
        entry[3],
        "Status text should match expected for " + entry[0]
      );
      if (entry[0] != "file_XHR_pass3.txt") {
        ok(
          res.url.endsWith(path + entry[0]),
          "Response url should match request for simple fetch for " + entry[0]
        );
      } else {
        ok(
          res.url.endsWith(path + "file_XHR_pass2.txt"),
          "Response url should match request for simple fetch for " + entry[0]
        );
      }
      is(
        res.headers.get("content-type"),
        entry[4],
        "Response should have content-type for " + entry[0]
      );
    });
    promises.push(p);
  });

  return Promise.all(promises);
}

function arraybuffer_equals_to(ab, s) {
  is(ab.byteLength, s.length, "arraybuffer byteLength should match");

  var u8v = new Uint8Array(ab);
  is(
    String.fromCharCode.apply(String, u8v),
    s,
    "arraybuffer bytes should match"
  );
}

function testResponses() {
  var fetches = [
    fetch(path + "file_XHR_pass2.txt").then(res => {
      is(res.status, 200, "status should match");
      return res
        .text()
        .then(v => is(v, "hello pass\n", "response should match"));
    }),

    fetch(path + "file_XHR_binary1.bin").then(res => {
      is(res.status, 200, "status should match");
      return res
        .arrayBuffer()
        .then(v =>
          arraybuffer_equals_to(
            v,
            "\xaa\xee\0\x03\xff\xff\xff\xff\xbb\xbb\xbb\xbb"
          )
        );
    }),

    new Promise((resolve, reject) => {
      var jsonBody = JSON.stringify({ title: "aBook", author: "john" });
      var req = new Request(path + "responseIdentical.sjs", {
        method: "POST",
        body: jsonBody,
      });
      var p = fetch(req).then(res => {
        is(res.status, 200, "status should match");
        return res.json().then(v => {
          is(JSON.stringify(v), jsonBody, "json response should match");
        });
      });
      resolve(p);
    }),

    new Promise((resolve, reject) => {
      var req = new Request(path + "responseIdentical.sjs", {
        method: "POST",
        body: "{",
      });
      var p = fetch(req).then(res => {
        is(res.status, 200, "wrong status");
        return res.json().then(
          v => ok(false, "expected json parse failure"),
          e => ok(true, "expected json parse failure")
        );
      });
      resolve(p);
    }),
  ];

  return Promise.all(fetches);
}

function testBlob() {
  return fetch(path + "/file_XHR_binary2.bin").then(r => {
    is(r.status, 200, "status should match");
    return r.blob().then(b => {
      is(b.size, 65536, "blob should have size 65536");
      return readAsArrayBuffer(b).then(function (ab) {
        var u8 = new Uint8Array(ab);
        for (var i = 0; i < 65536; i++) {
          if (u8[i] !== (i & 255)) {
            break;
          }
        }
        is(i, 65536, "wrong value at offset " + i);
      });
    });
  });
}

// This test is a copy of dom/html/test/formData_test.js testSend() modified to
// use the fetch API. Please change this if you change that.
function testFormDataSend() {
  var file,
    blob = new Blob(["hey"], { type: "text/plain" });

  var fd = new FormData();
  fd.append("string", "hey");
  fd.append("empty", blob);
  fd.append("explicit", blob, "explicit-file-name");
  fd.append("explicit-empty", blob, "");
  file = new File([blob], "testname", { type: "text/plain" });
  fd.append("file-name", file);
  file = new File([blob], "", { type: "text/plain" });
  fd.append("empty-file-name", file);
  file = new File([blob], "testname", { type: "text/plain" });
  fd.append("file-name-overwrite", file, "overwrite");

  var req = new Request("/tests/dom/html/test/form_submit_server.sjs", {
    method: "POST",
    body: fd,
  });

  return fetch(req).then(r => {
    is(r.status, 200, "status should match");
    return r.json().then(response => {
      for (var entry of response) {
        if (
          entry.headers["Content-Disposition"] != 'form-data; name="string"'
        ) {
          is(entry.headers["Content-Type"], "text/plain");
        }

        is(entry.body, "hey");
      }

      is(
        response[1].headers["Content-Disposition"],
        'form-data; name="empty"; filename="blob"'
      );

      is(
        response[2].headers["Content-Disposition"],
        'form-data; name="explicit"; filename="explicit-file-name"'
      );

      is(
        response[3].headers["Content-Disposition"],
        'form-data; name="explicit-empty"; filename=""'
      );

      is(
        response[4].headers["Content-Disposition"],
        'form-data; name="file-name"; filename="testname"'
      );

      is(
        response[5].headers["Content-Disposition"],
        'form-data; name="empty-file-name"; filename=""'
      );

      is(
        response[6].headers["Content-Disposition"],
        'form-data; name="file-name-overwrite"; filename="overwrite"'
      );
    });
  });
}

function runTest() {
  return Promise.resolve()
    .then(testURL)
    .then(testURLFail)
    .then(testRequestGET)
    .then(testResponses)
    .then(testBlob)
    .then(testFormDataSend);
  // Put more promise based tests here.
}