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

/**
 * Tests that when flame chart views scroll to change selection,
 * other detail views are rerendered.
 */

const { SIMPLE_URL } = require("devtools/client/performance/test/helpers/urls");
const {
  initPerformanceInNewTab,
  teardownToolboxAndRemoveTab,
} = require("devtools/client/performance/test/helpers/panel-utils");
const {
  startRecording,
  stopRecording,
} = require("devtools/client/performance/test/helpers/actions");
const {
  once,
} = require("devtools/client/performance/test/helpers/event-utils");
const {
  scrollCanvasGraph,
  HORIZONTAL_AXIS,
} = require("devtools/client/performance/test/helpers/input-utils");

add_task(async function() {
  const { panel } = await initPerformanceInNewTab({
    url: SIMPLE_URL,
    win: window,
  });

  const {
    EVENTS,
    OverviewView,
    DetailsView,
    WaterfallView,
    JsCallTreeView,
    JsFlameGraphView,
  } = panel.panelWin;

  await startRecording(panel);
  await stopRecording(panel);

  const waterfallRendered = once(WaterfallView, EVENTS.UI_WATERFALL_RENDERED);
  OverviewView.setTimeInterval({ startTime: 10, endTime: 20 });
  await waterfallRendered;

  // Select the call tree to make sure it's initialized and ready to receive
  // redrawing requests once reselected.
  const callTreeRendered = once(
    JsCallTreeView,
    EVENTS.UI_JS_CALL_TREE_RENDERED
  );
  await DetailsView.selectView("js-calltree");
  await callTreeRendered;

  // Switch to the flamegraph and perform a scroll over the visualization.
  // The waterfall and call tree should get rerendered when reselected.
  const flamegraphRendered = once(
    JsFlameGraphView,
    EVENTS.UI_JS_FLAMEGRAPH_RENDERED
  );
  await DetailsView.selectView("js-flamegraph");
  await flamegraphRendered;

  const overviewRangeSelected = once(
    OverviewView,
    EVENTS.UI_OVERVIEW_RANGE_SELECTED
  );
  const waterfallRerendered = once(WaterfallView, EVENTS.UI_WATERFALL_RENDERED);
  const callTreeRerendered = once(
    JsCallTreeView,
    EVENTS.UI_JS_CALL_TREE_RENDERED
  );

  once(JsFlameGraphView, EVENTS.UI_JS_FLAMEGRAPH_RENDERED).then(() => {
    ok(
      false,
      "FlameGraphView should not publicly rerender, the internal state " +
        "and drawing should be handled by the underlying widget."
    );
  });

  // Reset the range to full view, trigger a "selection" event as if
  // our mouse has done this
  scrollCanvasGraph(JsFlameGraphView.graph, {
    axis: HORIZONTAL_AXIS,
    wheel: 200,
    x: 10,
  });

  await overviewRangeSelected;
  ok(true, "Overview range was changed.");

  await DetailsView.selectView("waterfall");
  await waterfallRerendered;
  ok(true, "Waterfall rerendered by flame graph changing interval.");

  await DetailsView.selectView("js-calltree");
  await callTreeRerendered;
  ok(true, "CallTree rerendered by flame graph changing interval.");

  await teardownToolboxAndRemoveTab(panel);
});