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

"use strict";

// Tests that graph widgets can correctly determine which regions are hovered.

const TEST_DATA = [
  { delta: 112, value: 48 },
  { delta: 213, value: 59 },
  { delta: 313, value: 60 },
  { delta: 413, value: 59 },
  { delta: 530, value: 59 },
  { delta: 646, value: 58 },
  { delta: 747, value: 60 },
  { delta: 863, value: 48 },
  { delta: 980, value: 37 },
  { delta: 1097, value: 30 },
  { delta: 1213, value: 29 },
  { delta: 1330, value: 23 },
  { delta: 1430, value: 10 },
  { delta: 1534, value: 17 },
  { delta: 1645, value: 20 },
  { delta: 1746, value: 22 },
  { delta: 1846, value: 39 },
  { delta: 1963, value: 26 },
  { delta: 2080, value: 27 },
  { delta: 2197, value: 35 },
  { delta: 2312, value: 47 },
  { delta: 2412, value: 53 },
  { delta: 2514, value: 60 },
  { delta: 2630, value: 37 },
  { delta: 2730, value: 36 },
  { delta: 2830, value: 37 },
  { delta: 2946, value: 36 },
  { delta: 3046, value: 40 },
  { delta: 3163, value: 47 },
  { delta: 3280, value: 41 },
  { delta: 3380, value: 35 },
  { delta: 3480, value: 27 },
  { delta: 3580, value: 39 },
  { delta: 3680, value: 42 },
  { delta: 3780, value: 49 },
  { delta: 3880, value: 55 },
  { delta: 3980, value: 60 },
  { delta: 4080, value: 60 },
  { delta: 4180, value: 60 },
];
const TEST_REGIONS = [{ start: 320, end: 460 }, { start: 780, end: 860 }];
const LineGraphWidget = require("devtools/client/shared/widgets/LineGraphWidget");

add_task(async function() {
  await addTab("about:blank");
  await performTest();
  gBrowser.removeCurrentTab();
});

async function performTest() {
  const [host, , doc] = await createHost();
  const graph = new LineGraphWidget(doc.body, "fps");
  await graph.once("ready");

  testGraph(graph);

  await graph.destroy();
  host.destroy();
}

function testGraph(graph) {
  ok(
    !graph.getHoveredRegion(),
    "There should be no hovered region yet because there's no regions."
  );

  ok(
    !graph._isHoveringStartBoundary(),
    "The graph start boundary should not be hovered."
  );
  ok(
    !graph._isHoveringEndBoundary(),
    "The graph end boundary should not be hovered."
  );
  ok(
    !graph._isHoveringSelectionContents(),
    "The graph contents should not be hovered."
  );
  ok(
    !graph._isHoveringSelectionContentsOrBoundaries(),
    "The graph contents or boundaries should not be hovered."
  );

  graph.setData(TEST_DATA);
  graph.setRegions(TEST_REGIONS);

  ok(
    !graph.getHoveredRegion(),
    "There should be no hovered region yet because there's no cursor."
  );

  graph.setCursor({ x: TEST_REGIONS[0].start * graph.dataScaleX - 1, y: 0 });
  ok(!graph.getHoveredRegion(), "There shouldn't be any hovered region yet.");

  graph.setCursor({ x: TEST_REGIONS[0].start * graph.dataScaleX + 1, y: 0 });
  ok(graph.getHoveredRegion(), "There should be a hovered region now.");
  is(
    graph.getHoveredRegion().start,
    320 * graph.dataScaleX,
    "The reported hovered region is correct (1)."
  );
  is(
    graph.getHoveredRegion().end,
    460 * graph.dataScaleX,
    "The reported hovered region is correct (2)."
  );

  graph.setSelection({ start: 100, end: 200 });

  info("Setting cursor over the left boundary.");
  graph.setCursor({ x: 100, y: 0 });

  ok(
    graph._isHoveringStartBoundary(),
    "The graph start boundary should be hovered."
  );
  ok(
    !graph._isHoveringEndBoundary(),
    "The graph end boundary should not be hovered."
  );
  ok(
    !graph._isHoveringSelectionContents(),
    "The graph contents should not be hovered."
  );
  ok(
    graph._isHoveringSelectionContentsOrBoundaries(),
    "The graph contents or boundaries should be hovered."
  );

  info("Setting cursor near the left boundary.");
  graph.setCursor({ x: 105, y: 0 });

  ok(
    graph._isHoveringStartBoundary(),
    "The graph start boundary should be hovered."
  );
  ok(
    !graph._isHoveringEndBoundary(),
    "The graph end boundary should not be hovered."
  );
  ok(
    graph._isHoveringSelectionContents(),
    "The graph contents should be hovered."
  );
  ok(
    graph._isHoveringSelectionContentsOrBoundaries(),
    "The graph contents or boundaries should be hovered."
  );

  info("Setting cursor over the selection.");
  graph.setCursor({ x: 150, y: 0 });

  ok(
    !graph._isHoveringStartBoundary(),
    "The graph start boundary should not be hovered."
  );
  ok(
    !graph._isHoveringEndBoundary(),
    "The graph end boundary should not be hovered."
  );
  ok(
    graph._isHoveringSelectionContents(),
    "The graph contents should be hovered."
  );
  ok(
    graph._isHoveringSelectionContentsOrBoundaries(),
    "The graph contents or boundaries should be hovered."
  );

  info("Setting cursor near the right boundary.");
  graph.setCursor({ x: 195, y: 0 });

  ok(
    !graph._isHoveringStartBoundary(),
    "The graph start boundary should not be hovered."
  );
  ok(
    graph._isHoveringEndBoundary(),
    "The graph end boundary should be hovered."
  );
  ok(
    graph._isHoveringSelectionContents(),
    "The graph contents should be hovered."
  );
  ok(
    graph._isHoveringSelectionContentsOrBoundaries(),
    "The graph contents or boundaries should be hovered."
  );

  info("Setting cursor over the right boundary.");
  graph.setCursor({ x: 200, y: 0 });

  ok(
    !graph._isHoveringStartBoundary(),
    "The graph start boundary should not be hovered."
  );
  ok(
    graph._isHoveringEndBoundary(),
    "The graph end boundary should be hovered."
  );
  ok(
    !graph._isHoveringSelectionContents(),
    "The graph contents should not be hovered."
  );
  ok(
    graph._isHoveringSelectionContentsOrBoundaries(),
    "The graph contents or boundaries should be hovered."
  );

  info("Setting away from the selection.");
  graph.setCursor({ x: 300, y: 0 });

  ok(
    !graph._isHoveringStartBoundary(),
    "The graph start boundary should not be hovered."
  );
  ok(
    !graph._isHoveringEndBoundary(),
    "The graph end boundary should not be hovered."
  );
  ok(
    !graph._isHoveringSelectionContents(),
    "The graph contents should not be hovered."
  );
  ok(
    !graph._isHoveringSelectionContentsOrBoundaries(),
    "The graph contents or boundaries should not be hovered."
  );
}