/*
 * Portions of this file are based on code from ariakit.
 * MIT Licensed, Copyright (c) Diego Haz.
 *
 * Credits to the Ariakit team:
 * https://github.com/ariakit/ariakit/blob/84e97943ad637a582c01c9b56d880cd95f595737/packages/ariakit/src/tooltip/tooltip-anchor.ts
 *
 * Portions of this file are based on code from react-spectrum.
 * Apache License Version 2.0, Copyright 2020 Adobe.
 *
 * Credits to the React Spectrum team:
 * https://github.com/adobe/react-spectrum/blob/e67d48d4935b772f915b08f1d695d2ebafb876f0/packages/@react-aria/tooltip/src/useTooltipTrigger.ts
 *
 * Portions of this file are based on code from radix-ui-primitives.
 * MIT Licensed, Copyright (c) 2022 WorkOS.
 *
 * Credits to the Radix UI team:
 * https://github.com/radix-ui/primitives/blob/1b05a8e35cf35f3020484979086d70aefbaf4095/packages/react/tooltip/src/Tooltip.tsx
 */

import { callHandler, getDocument, mergeRefs } from "@kobalte/utils";
import { type JSX, type ValidComponent, onCleanup, splitProps } from "solid-js";
import { isServer } from "solid-js/web";

import {
	type ElementOf,
	Polymorphic,
	type PolymorphicProps,
} from "../polymorphic";
import { useTooltipContext } from "./tooltip-context";

export interface TooltipTriggerOptions {}

export interface TooltipTriggerCommonProps<
	T extends HTMLElement = HTMLElement,
> {
	ref: T | ((el: T) => void);
	onPointerEnter: JSX.EventHandlerUnion<T, PointerEvent>;
	onPointerLeave: JSX.EventHandlerUnion<T, PointerEvent>;
	onPointerDown: JSX.EventHandlerUnion<T, PointerEvent>;
	onClick: JSX.EventHandlerUnion<T, MouseEvent>;
	onFocus: JSX.EventHandlerUnion<T, FocusEvent>;
	onBlur: JSX.EventHandlerUnion<T, FocusEvent>;
}

export interface TooltipTriggerRenderProps extends TooltipTriggerCommonProps {
	"aria-describedby": string | undefined;
}

export type TooltipTriggerProps<
	T extends ValidComponent | HTMLElement = HTMLElement,
> = TooltipTriggerOptions & Partial<TooltipTriggerCommonProps<ElementOf<T>>>;

/**
 * The button that opens the tooltip when hovered.
 */
export function TooltipTrigger<T extends ValidComponent = "button">(
	props: PolymorphicProps<T, TooltipTriggerProps<T>>,
) {
	let ref: HTMLElement | undefined;

	const context = useTooltipContext();

	const [local, others] = splitProps(props as TooltipTriggerProps, [
		"ref",
		"onPointerEnter",
		"onPointerLeave",
		"onPointerDown",
		"onClick",
		"onFocus",
		"onBlur",
	]);

	let isPointerDown = false;
	let isHovered = false;
	let isFocused = false;

	const handlePointerUp = () => {
		isPointerDown = false;
	};

	const handleShow = () => {
		if (!context.isOpen() && (isHovered || isFocused)) {
			context.openTooltip(isFocused);
		}
	};

	const handleHide = (immediate?: boolean) => {
		if (context.isOpen() && !isHovered && !isFocused) {
			context.hideTooltip(immediate);
		}
	};

	const onPointerEnter: JSX.EventHandlerUnion<HTMLElement, PointerEvent> = (
		e,
	) => {
		callHandler(e, local.onPointerEnter);

		if (
			e.pointerType === "touch" ||
			context.triggerOnFocusOnly() ||
			context.isDisabled() ||
			e.defaultPrevented
		) {
			return;
		}

		isHovered = true;

		handleShow();
	};

	const onPointerLeave: JSX.EventHandlerUnion<HTMLElement, PointerEvent> = (
		e,
	) => {
		callHandler(e, local.onPointerLeave);

		if (e.pointerType === "touch") {
			return;
		}

		// No matter how the trigger is left, we should close the tooltip.
		isHovered = false;
		isFocused = false;

		if (context.isOpen()) {
			handleHide();
		} else {
			context.cancelOpening();
		}
	};

	const onPointerDown: JSX.EventHandlerUnion<HTMLElement, PointerEvent> = (
		e,
	) => {
		callHandler(e, local.onPointerDown);

		isPointerDown = true;
		getDocument(ref).addEventListener("pointerup", handlePointerUp, {
			once: true,
		});
	};

	const onClick: JSX.EventHandlerUnion<HTMLElement, MouseEvent> = (e) => {
		callHandler(e, local.onClick);

		// No matter how the trigger is left, we should close the tooltip.
		isHovered = false;
		isFocused = false;

		handleHide(true);
	};

	const onFocus: JSX.EventHandlerUnion<HTMLElement, FocusEvent> = (e) => {
		callHandler(e, local.onFocus);

		if (context.isDisabled() || e.defaultPrevented || isPointerDown) {
			return;
		}

		isFocused = true;

		handleShow();
	};

	const onBlur: JSX.EventHandlerUnion<HTMLElement, FocusEvent> = (e) => {
		callHandler(e, local.onBlur);

		const relatedTarget = e.relatedTarget as Node | null;

		if (context.isTargetOnTooltip(relatedTarget)) {
			return;
		}

		// No matter how the trigger is left, we should close the tooltip.
		isHovered = false;
		isFocused = false;

		handleHide(true);
	};

	onCleanup(() => {
		if (isServer) {
			return;
		}

		getDocument(ref).removeEventListener("pointerup", handlePointerUp);
	});

	// We purposefully avoid using Kobalte `Button` here because tooltip triggers can be any element
	// and should not always be announced as a button to screen readers.
	return (
		<Polymorphic<TooltipTriggerRenderProps>
			as="button"
			ref={mergeRefs((el) => {
				context.setTriggerRef(el);
				ref = el;
			}, local.ref)}
			aria-describedby={context.isOpen() ? context.contentId() : undefined}
			onPointerEnter={onPointerEnter}
			onPointerLeave={onPointerLeave}
			onPointerDown={onPointerDown}
			onClick={onClick}
			onFocus={onFocus}
			onBlur={onBlur}
			{...context.dataset()}
			{...others}
		/>
	);
}