module BABYLON {
    export class ArcRotateCameraGamepadInput implements ICameraInput<ArcRotateCamera> {
        camera: ArcRotateCamera;

        public gamepad: Gamepad;
        private _gamepads: Gamepads<Gamepad>;

        @serialize()
        public gamepadRotationSensibility = 80;

        @serialize()
        public gamepadMoveSensibility = 40;

        attachControl(element: HTMLElement, noPreventDefault?: boolean) {
            this._gamepads = new Gamepads((gamepad: Gamepad) => { this._onNewGameConnected(gamepad); });
        }

        detachControl(element: HTMLElement) {
            if (this._gamepads) {
                this._gamepads.dispose();
            }
            this.gamepad = null;
        }

        checkInputs() {
            if (this.gamepad) {
                var camera = this.camera;
                var RSValues = this.gamepad.rightStick;

                if (RSValues.x != 0) {
                    var normalizedRX = RSValues.x / this.gamepadRotationSensibility;
                    if (normalizedRX != 0 && Math.abs(normalizedRX) > 0.005) {
                        camera.inertialAlphaOffset += normalizedRX;
                    }
                }

                if (RSValues.y != 0) {
                    var normalizedRY = RSValues.y / this.gamepadRotationSensibility;
                    if (normalizedRY != 0 && Math.abs(normalizedRY) > 0.005) {
                        camera.inertialBetaOffset += normalizedRY;
                    }
                }

                var LSValues = this.gamepad.leftStick;
                if (LSValues.y != 0) {
                    var normalizedLY = LSValues.y / this.gamepadMoveSensibility;
                    if (normalizedLY != 0 && Math.abs(normalizedLY) > 0.005) {
                        this.camera.inertialRadiusOffset -= normalizedLY;
                    }
                }

            }
        }

        private _onNewGameConnected(gamepad: Gamepad) {
            // Only the first gamepad can control the camera
            if (!this.gamepad && gamepad.type !== Gamepad.POSE_ENABLED) {
                this.gamepad = gamepad;
            }
        }

        getTypeName(): string {
            return "ArcRotateCameraGamepadInput";
        }

        getSimpleName() {
            return "gamepad";
        }
    }

    CameraInputTypes["ArcRotateCameraGamepadInput"] = ArcRotateCameraGamepadInput;
}