<script lang="ts">
	import XIcon from '@lucide/svelte/icons/x';
	import { Dialog as DialogPrimitive } from 'bits-ui';

	import { type WithoutChildrenOrChild, cn } from '$lib/utils/ui.js';

	import DialogPortal from './dialog-portal.svelte';
	import * as Dialog from './index.js';

	import type { Snippet } from 'svelte';
	import type { ComponentProps } from 'svelte';

	let {
		ref = $bindable(null),
		class: className,
		portalProps,
		children,
		showCloseButton = true,
		...restProps
	}: WithoutChildrenOrChild<DialogPrimitive.ContentProps> & {
		portalProps?: WithoutChildrenOrChild<ComponentProps<typeof DialogPortal>>;
		children: Snippet;
		showCloseButton?: boolean;
	} = $props();

	// Keep the (fixed, layout-viewport-centered) dialog centered within the
	// VISUAL viewport, so the mobile keyboard shifts it up instead of covering it.
	let kbShift = $state(0);
	$effect(() => {
		const vv = window.visualViewport;
		if (!vv) return;
		const update = () => {
			const visualCenter = vv.offsetTop + vv.height / 2;
			// negative when the keyboard eats the bottom → moves the dialog up
			kbShift = Math.min(0, visualCenter - window.innerHeight / 2);
		};
		update();
		vv.addEventListener('resize', update);
		vv.addEventListener('scroll', update);
		return () => {
			vv.removeEventListener('resize', update);
			vv.removeEventListener('scroll', update);
		};
	});
</script>

<DialogPortal {...portalProps}>
	<Dialog.Overlay />
	<DialogPrimitive.Content
		bind:ref
		data-slot="dialog-content"
		class={cn(
			'bg-background data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 fixed top-[50%] left-[50%] z-50 grid w-full max-w-[calc(100%-2rem)] translate-x-[-50%] translate-y-[-50%] gap-4 rounded-lg border p-6 shadow-lg duration-200 sm:max-w-lg',
			className
		)}
		style="margin-top:{kbShift}px;transition:margin-top 0.18s ease"
		{...restProps}
	>
		{@render children?.()}
		{#if showCloseButton}
			<DialogPrimitive.Close
				class="ring-offset-background focus:ring-ring absolute end-4 top-4 rounded-xs opacity-70 transition-opacity hover:opacity-100 focus:ring-2 focus:ring-offset-2 focus:outline-hidden disabled:pointer-events-none [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4"
			>
				<XIcon />
				<span class="sr-only">Close</span>
			</DialogPrimitive.Close>
		{/if}
	</DialogPrimitive.Content>
</DialogPortal>
