public void ApplyOn()

in ScpControl.Shared/Core/DualShockProfile.cs [425:488]
39 lines of code
17 McCabe index (conditional complexity)

        public void ApplyOn(ScpHidReport report, IDsButton button)
        {
            // button type must match model, madness otherwise!
            if ((report.Model != DsModel.DS3 || !(button is Ds3Button)) &&
                (report.Model != DsModel.DS4 || !(button is Ds4Button))) return;

            // if button got released...
            if (_isActive && !report[button].IsPressed)
            {
                // ...disable, reset and return
                _isActive = false;
                _delayedFrame.Reset();
                _engagedFrame.Reset();
                _releasedFrame.Reset();
                return;
            }

            // if turbo is enabled and button is pressed...
            if (!_isActive && report[button].IsPressed)
            {
                // ...start calculating the activation delay...
                if (!_delayedFrame.IsRunning) _delayedFrame.Restart();

                // ...if we are still activating, don't do anything
                if (_delayedFrame.ElapsedMilliseconds < Delay) return;

                // time to activate!
                _isActive = true;
                _delayedFrame.Reset();
            }

            // if the button was released...
            if (!report[button].IsPressed)
            {
                // ...restore default states and skip processing
                _isActive = false;
                return;
            }

            // reset engaged ("keep pressed") time frame...
            if (!_engagedFrame.IsRunning) _engagedFrame.Restart();

            // ...do not change state while within frame and button is still pressed, then skip
            if (_engagedFrame.ElapsedMilliseconds < Interval && report[button].IsPressed) return;

            // reset released time frame ("forecefully release") for button
            if (!_releasedFrame.IsRunning) _releasedFrame.Restart();

            // while we're still within the released time frame...
            if (_releasedFrame.ElapsedMilliseconds < Release)
            {
                // ...re-set the button state to released
                report.Unset(button);
            }
            else
            {
                // all frames passed, reset and start over
                _isActive = false;

                _delayedFrame.Stop();
                _engagedFrame.Stop();
                _releasedFrame.Stop();
            }
        }