/* Any copyright is dedicated to the Public Domain.
   http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

/**
 * Tests for all expected requests when an iframe is loading a subdocument.
 */

const TOP_FILE_NAME = "html_frame-test-page.html";
const SUB_FILE_NAME = "html_frame-subdocument.html";
const TOP_URL = EXAMPLE_URL + TOP_FILE_NAME;
const SUB_URL = EXAMPLE_URL + SUB_FILE_NAME;

const EXPECTED_REQUESTS_TOP = [
  {
    method: "GET",
    url: TOP_URL,
    causeType: "document",
    causeUri: "",
    stack: true
  },
  {
    method: "GET",
    url: EXAMPLE_URL + "stylesheet_request",
    causeType: "stylesheet",
    causeUri: TOP_URL,
    stack: false
  },
  {
    method: "GET",
    url: EXAMPLE_URL + "img_request",
    causeType: "img",
    causeUri: TOP_URL,
    stack: false
  },
  {
    method: "GET",
    url: EXAMPLE_URL + "xhr_request",
    causeType: "xhr",
    causeUri: TOP_URL,
    stack: [{ fn: "performXhrRequest", file: TOP_FILE_NAME, line: 23 }]
  },
  {
    method: "GET",
    url: EXAMPLE_URL + "fetch_request",
    causeType: "fetch",
    causeUri: TOP_URL,
    stack: [{ fn: "performFetchRequest", file: TOP_FILE_NAME, line: 27 }]
  },
  {
    method: "GET",
    url: EXAMPLE_URL + "promise_fetch_request",
    causeType: "fetch",
    causeUri: TOP_URL,
    stack: [
      { fn: "performPromiseFetchRequest", file: TOP_FILE_NAME, line: 39 },
      { fn: null, file: TOP_FILE_NAME, line: 38, asyncCause: "promise callback" },
    ]
  },
  {
    method: "GET",
    url: EXAMPLE_URL + "timeout_fetch_request",
    causeType: "fetch",
    causeUri: TOP_URL,
    stack: [
      { fn: "performTimeoutFetchRequest", file: TOP_FILE_NAME, line: 41 },
      { fn: "performPromiseFetchRequest", file: TOP_FILE_NAME, line: 40,
        asyncCause: "setTimeout handler" },
    ]
  },
  {
    method: "POST",
    url: EXAMPLE_URL + "beacon_request",
    causeType: "beacon",
    causeUri: TOP_URL,
    stack: [{ fn: "performBeaconRequest", file: TOP_FILE_NAME, line: 31 }]
  },
];

const EXPECTED_REQUESTS_SUB = [
  {
    method: "GET",
    url: SUB_URL,
    causeType: "subdocument",
    causeUri: TOP_URL,
    stack: false
  },
  {
    method: "GET",
    url: EXAMPLE_URL + "stylesheet_request",
    causeType: "stylesheet",
    causeUri: SUB_URL,
    stack: false
  },
  {
    method: "GET",
    url: EXAMPLE_URL + "img_request",
    causeType: "img",
    causeUri: SUB_URL,
    stack: false
  },
  {
    method: "GET",
    url: EXAMPLE_URL + "xhr_request",
    causeType: "xhr",
    causeUri: SUB_URL,
    stack: [{ fn: "performXhrRequest", file: SUB_FILE_NAME, line: 22 }]
  },
  {
    method: "GET",
    url: EXAMPLE_URL + "fetch_request",
    causeType: "fetch",
    causeUri: SUB_URL,
    stack: [{ fn: "performFetchRequest", file: SUB_FILE_NAME, line: 26 }]
  },
  {
    method: "GET",
    url: EXAMPLE_URL + "promise_fetch_request",
    causeType: "fetch",
    causeUri: SUB_URL,
    stack: [
      { fn: "performPromiseFetchRequest", file: SUB_FILE_NAME, line: 38 },
      { fn: null, file: SUB_FILE_NAME, line: 37, asyncCause: "promise callback" },
    ]
  },
  {
    method: "GET",
    url: EXAMPLE_URL + "timeout_fetch_request",
    causeType: "fetch",
    causeUri: SUB_URL,
    stack: [
      { fn: "performTimeoutFetchRequest", file: SUB_FILE_NAME, line: 40 },
      { fn: "performPromiseFetchRequest", file: SUB_FILE_NAME, line: 39,
        asyncCause: "setTimeout handler" },
    ]
  },
  {
    method: "POST",
    url: EXAMPLE_URL + "beacon_request",
    causeType: "beacon",
    causeUri: SUB_URL,
    stack: [{ fn: "performBeaconRequest", file: SUB_FILE_NAME, line: 30 }]
  },
];

const REQUEST_COUNT = EXPECTED_REQUESTS_TOP.length + EXPECTED_REQUESTS_SUB.length;

add_task(function* () {
  // Async stacks aren't on by default in all builds
  yield SpecialPowers.pushPrefEnv({ set: [["javascript.options.asyncstack", true]] });

  // the initNetMonitor function clears the network request list after the
  // page is loaded. That's why we first load a bogus page from SIMPLE_URL,
  // and only then load the real thing from TOP_URL - we want to catch
  // all the requests the page is making, not only the XHRs.
  // We can't use about:blank here, because initNetMonitor checks that the
  // page has actually made at least one request.
  let { tab, monitor } = yield initNetMonitor(SIMPLE_URL);
  let { NetMonitorView } = monitor.panelWin;
  let { RequestsMenu } = NetMonitorView;
  RequestsMenu.lazyUpdate = false;

  tab.linkedBrowser.loadURI(TOP_URL, null, null);

  yield waitForNetworkEvents(monitor, REQUEST_COUNT);

  is(RequestsMenu.itemCount, REQUEST_COUNT,
    "All the page events should be recorded.");

  // While there is a defined order for requests in each document separately, the requests
  // from different documents may interleave in various ways that change per test run, so
  // there is not a single order when considering all the requests together.
  let currentTop = 0;
  let currentSub = 0;
  for (let i = 0; i < REQUEST_COUNT; i++) {
    let requestItem = RequestsMenu.getItemAtIndex(i);

    let itemUrl = requestItem.attachment.url;
    let itemCauseUri = requestItem.target.querySelector(".requests-menu-cause-label")
                                         .getAttribute("tooltiptext");
    let spec;
    if (itemUrl == SUB_URL || itemCauseUri == SUB_URL) {
      spec = EXPECTED_REQUESTS_SUB[currentSub++];
    } else {
      spec = EXPECTED_REQUESTS_TOP[currentTop++];
    }
    let { method, url, causeType, causeUri, stack } = spec;

    verifyRequestItemTarget(requestItem,
      method, url, { cause: { type: causeType, loadingDocumentUri: causeUri } }
    );

    let { stacktrace } = requestItem.attachment.cause;
    let stackLen = stacktrace ? stacktrace.length : 0;

    if (stack) {
      ok(stacktrace, `Request #${i} has a stacktrace`);
      ok(stackLen > 0,
        `Request #${i} (${causeType}) has a stacktrace with ${stackLen} items`);

      // if "stack" is array, check the details about the top stack frames
      if (Array.isArray(stack)) {
        stack.forEach((frame, j) => {
          is(stacktrace[j].functionName, frame.fn,
            `Request #${i} has the correct function on JS stack frame #${j}`);
          is(stacktrace[j].filename.split("/").pop(), frame.file,
            `Request #${i} has the correct file on JS stack frame #${j}`);
          is(stacktrace[j].lineNumber, frame.line,
            `Request #${i} has the correct line number on JS stack frame #${j}`);
          is(stacktrace[j].asyncCause, frame.asyncCause,
            `Request #${i} has the correct async cause on JS stack frame #${j}`);
        });
      }
    } else {
      is(stackLen, 0, `Request #${i} (${causeType}) has an empty stacktrace`);
    }
  }

  yield teardown(monitor);
});
