import HSOverlay from './core';
import { isDirectChild } from '../../utils';

let resizeTimeout: ReturnType<typeof setTimeout> | null = null;

const debounceResize = (callback: () => void, delay: number = 150) => {
	if (resizeTimeout) clearTimeout(resizeTimeout);

	resizeTimeout = setTimeout(callback, delay);
};

const autoCloseResizeFn = (isImmediateOnly = false) => {
	if (
		!window?.$hsOverlayCollection?.length ||
		!window?.$hsOverlayCollection?.find((el) => el.element.autoClose)
	) {
		return false;
	}

	const overlays = window.$hsOverlayCollection.filter(
		(el) =>
			el.element.autoClose &&
			(!isImmediateOnly || el.element.isToggleClassesImmediately),
	);

	overlays.forEach((overlay) => {
		const { autoCloseEqualityType, autoClose } = overlay.element;
		const condition =
			autoCloseEqualityType === 'less-than'
				? document.body.clientWidth <= autoClose
				: document.body.clientWidth >= autoClose;

		if (condition && overlay.element.el.classList.contains('opened')) {
			if (overlay.element.el.classList.contains('minified')) {
				overlay.element.minify(false);
			}

			overlay.element.close(true);
		} else {
			if (
				overlay.element.isLayoutAffect &&
				overlay.element.el.classList.contains('opened')
			) {
				document.body.classList.add('hs-overlay-body-open');
			}
		}
	});
};

const moveOverlayToBodyResizeFn = () => {
	if (
		!window?.$hsOverlayCollection?.length ||
		!window?.$hsOverlayCollection?.find((el) => el.element.moveOverlayToBody)
	) {
		return false;
	}

	const overlays = window.$hsOverlayCollection.filter(
		(el) => el.element.moveOverlayToBody,
	);

	overlays.forEach((overlay) => {
		const resolution = overlay.element.moveOverlayToBody;
		const initPlace = overlay.element.initContainer;
		const newPlace = document.querySelector('body');
		const target = overlay.element.el;

		if (!initPlace && target) return false;

		if (
			document.body.clientWidth <= resolution &&
			!isDirectChild(newPlace, target)
		) {
			newPlace.appendChild(target);
		} else if (
			document.body.clientWidth > resolution &&
			!initPlace.contains(target)
		) {
			initPlace.appendChild(target);
		}
	});
};

const setOpenedResizeFn = (isImmediateOnly = false) => {
	if (
		!window?.$hsOverlayCollection?.length ||
		!window?.$hsOverlayCollection?.find((el) => el.element.openedBreakpoint)
	) {
		return false;
	}

	const overlays = window.$hsOverlayCollection.filter(
		(el) =>
			el.element.openedBreakpoint &&
			(!isImmediateOnly || el.element.isToggleClassesImmediately),
	);

	overlays.forEach((overlay) => {
		const { openedBreakpoint } = overlay.element;
		const condition = document.body.clientWidth >= openedBreakpoint;

		if (condition) {
			if (!overlay.element.el.classList.contains('opened')) {
				HSOverlay.setOpened(openedBreakpoint, overlay);
			}
		} else {
			if (overlay.element.el.classList.contains('opened')) {
				if (overlay.element.el.classList.contains('minified')) {
					overlay.element.minify(false);
				}

				overlay.element.close(true);
			}
		}
	});
};

const setBackdropZIndexResizeFn = () => {
	if (
		!window?.$hsOverlayCollection?.length ||
		!window?.$hsOverlayCollection?.find((el) =>
			el.element.el.classList.contains('opened'),
		)
	) {
		return false;
	}

	const overlays = window.$hsOverlayCollection.filter((el) =>
		el.element.el.classList.contains('opened'),
	);

	overlays.forEach((overlay) => {
		const overlayZIndex = parseInt(
			window.getComputedStyle(overlay.element.el).getPropertyValue('z-index'),
		);
		const backdrop: HTMLElement = document.querySelector(
			`#${overlay.element.el.id}-backdrop`,
		);
		if (!backdrop) return false;

		const backdropZIndex = parseInt(
			window.getComputedStyle(backdrop).getPropertyValue('z-index'),
		);
		if (overlayZIndex === backdropZIndex + 1) return false;

		if ('style' in backdrop) backdrop.style.zIndex = `${overlayZIndex - 1}`;

		document.body.classList.add('hs-overlay-body-open');
	});
};

const ensureBodyOpenForMinifiedSidebar = () => {
	if (!window.$hsOverlayCollection?.length) return;

	window.$hsOverlayCollection.forEach((overlayItem) => {
		const overlay = overlayItem.element;
		if (overlay.toggleMinifierButtons?.length > 0 && overlay.openedBreakpoint) {
			if (document.body.clientWidth >= overlay.openedBreakpoint) {
				document.body.classList.add('hs-overlay-body-open');
			} else {
				document.body.classList.remove('hs-overlay-body-open');
			}
		}
	});
};

window.addEventListener('load', () => {
	HSOverlay.autoInit();

	moveOverlayToBodyResizeFn();
	ensureBodyOpenForMinifiedSidebar();
});

window.addEventListener('resize', () => {
	autoCloseResizeFn(true);
	setOpenedResizeFn(true);

	debounceResize(() => {
		autoCloseResizeFn();
		setOpenedResizeFn();
	});

	moveOverlayToBodyResizeFn();
	setBackdropZIndexResizeFn();
	ensureBodyOpenForMinifiedSidebar();
});

if (typeof window !== 'undefined') {
	window.HSOverlay = HSOverlay;
}