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// SPDX-FileCopyrightText: 2024 Shota FUJI <pockawoooh@gmail.com>
// SPDX-License-Identifier: AGPL-3.0-only

import * as RadixToast from "@radix-ui/react-toast";
import { Flex } from "@radix-ui/themes";
import { createContext, type FC, type ReactNode, use, useMemo, useState } from "react";

import { Toast, type ToastProps } from "../components/Toast.tsx";

interface ToastController {
	open(props: ToastProps): () => void;
}

const ToastContext = createContext<ToastController>({
	open() {
		return () => {};
	},
});

export interface ToastProviderProps {
	children: ReactNode;
}

export const ToastProvider: FC<ToastProviderProps> = ({ children }) => {
	const [toasts, setToasts] = useState<readonly (ToastProps & { key: string })[]>([]);

	const controller = useMemo<ToastController>(() => {
		return {
			open(props) {
				const queue: ToastProps & { key: string } = {
					...props,
					key: crypto.randomUUID(),
					onOpenChange(open) {
						props.onOpenChange?.(open);

						if (!open) {
							setToasts((prev) => prev.filter((p) => p !== queue));
						}
					},
				};

				setToasts((prev) => [...prev, queue]);

				return () => void setToasts((prev) => prev.filter((p) => p !== queue));
			},
		};
	}, []);

	return (
		<RadixToast.Provider duration={3_000}>
			<ToastContext.Provider value={controller}>{children}</ToastContext.Provider>
			{toasts.map(({ key, ...toast }) => (
				<Toast
					key={key}
					{...toast}
					style={{ pointerEvents: "auto", viewTransitionName: `toast-${key}` }}
				/>
			))}
			<RadixToast.Viewport asChild>
				<Flex
					position="absolute"
					top={{ initial: "0", md: "unset" }}
					right="0"
					bottom={{ md: "0" }}
					left={{ initial: "0", md: "unset" }}
					p="2"
					direction={{ initial: "column", md: "column-reverse" }}
					align="center"
					gap="2"
					overflowX="hidden"
					style={{ pointerEvents: "none", zIndex: 999 }}
				/>
			</RadixToast.Viewport>
		</RadixToast.Provider>
	);
};

export function useToast() {
	return use(ToastContext);
}