<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/webxr_util.js"></script>
<script src="resources/webxr_test_constants.js"></script>

<script>

let testName = "XRInputSources can be properly added and removed from the "
  + "session";

let fakeDeviceInitParams = TRACKED_IMMERSIVE_DEVICE;

let testFunction = (session, fakeDeviceController, t) => new Promise((resolve) => {
    let input_sources = session.inputSources;

    t.step( () => {
      assert_equals(input_sources.length, 0);
    });

    let input_source_1 = fakeDeviceController.simulateInputSourceConnection(RIGHT_CONTROLLER);

    requestSkipAnimationFrame(session, (time, xrFrame) => {
      let input_sources = session.inputSources;

      t.step( () => {
        assert_equals(input_sources.length, 1);
        assert_equals(input_sources[0].targetRayMode, "tracked-pointer");
        assert_equals(input_sources[0].handedness, "right");
      });

      let input_source_2 = fakeDeviceController.simulateInputSourceConnection({
        handedness: "none",
        targetRayMode: "gaze",
        pointerOrigin: VALID_POINTER_TRANSFORM,
        profiles: []
      });

      session.requestAnimationFrame((time, xrFrame) => {
        let input_sources = session.inputSources;

        t.step( () => {
          assert_equals(input_sources.length, 2);
          assert_equals(input_sources[1].targetRayMode, "gaze");
          assert_equals(input_sources[1].handedness, "none");
        });

        input_source_1.disconnect();

        session.requestAnimationFrame((time, xrFrame) => {
          let input_sources = session.inputSources;

          t.step( () => {
            assert_equals(input_sources.length, 1);
            assert_equals(input_sources[0].targetRayMode, "gaze");
            assert_equals(input_sources[0].handedness, "none");
          });

          resolve();
        });
      });
    });
  });

xr_session_promise_test(
  testName, testFunction, fakeDeviceInitParams, 'immersive-vr');

</script>
