export type PointerInputMode = 'controller' | 'hand';

export type PointerInputModeCarrier = {
	controller?: {
		userData?: any;
	};
	pointerInputMode?: PointerInputMode;
};

export function rememberPointerInputMode(
	inputSource: PointerInputModeCarrier,
	event: any,
	fallbackMode: PointerInputMode
): void {
	const eventInputSource = event?.data?.inputSource || event?.inputSource || event?.data;
	const nextMode = getPointerInputMode(eventInputSource) || fallbackMode;
	inputSource.pointerInputMode = nextMode;

	if (!inputSource.controller) {
		return;
	}

	inputSource.controller.userData = {
		...inputSource.controller.userData,
		vrwpInputSource: inputSource
	};
}

export function getPointerInputMode(eventInputSource: any): PointerInputMode | null {
	if (!eventInputSource) {
		return null;
	}

	if (eventInputSource.hand) {
		return 'hand';
	}

	if (Array.isArray(eventInputSource.profiles) &&
		eventInputSource.profiles.some((profile: string) => profile.toLowerCase().includes('hand'))) {
		return 'hand';
	}

	if (eventInputSource.gamepad || eventInputSource.targetRayMode === 'tracked-pointer') {
		return 'controller';
	}

	return null;
}

export function shouldUseHandPointer(inputSource: PointerInputModeCarrier | undefined): boolean {
	return inputSource?.pointerInputMode === 'hand';
}