import { cva, type VariantProps } from 'class-variance-authority';
import * as React from 'react';

import { Button } from '@/components/ui/button';
import { Input } from '@/components/ui/input';
import { Textarea } from '@/components/ui/textarea';
import { cn } from '@/lib/utils';

function InputGroup({ className, ...props }: React.ComponentProps<'div'>) {
	return (
		<div
			data-slot="input-group"
			role="group"
			className={cn(
				'group/input-group border-input dark:bg-input/30 relative flex w-full items-center rounded-md border shadow-xs transition-[color,box-shadow] outline-none',
				'h-9 min-w-0 has-[>textarea]:h-auto',

				// Variants based on alignment.
				'has-[>[data-align=inline-start]]:[&>input]:ps-2',
				'has-[>[data-align=inline-end]]:[&>input]:pe-2',
				'has-[>[data-align=block-start]]:h-auto has-[>[data-align=block-start]]:flex-col has-[>[data-align=block-start]]:[&>input]:pb-3',
				'has-[>[data-align=block-end]]:h-auto has-[>[data-align=block-end]]:flex-col has-[>[data-align=block-end]]:[&>input]:pt-3',

				// Focus state.
				'has-[[data-slot=input-group-control]:focus-visible]:border-ring has-[[data-slot=input-group-control]:focus-visible]:ring-ring/50 has-[[data-slot=input-group-control]:focus-visible]:ring-[3px]',

				// Error state.
				'has-[[data-slot][aria-invalid=true]]:ring-destructive/20 has-[[data-slot][aria-invalid=true]]:border-destructive dark:has-[[data-slot][aria-invalid=true]]:ring-destructive/40',

				className,
			)}
			{...props}
		/>
	);
}

const inputGroupAddonVariants = cva(
	"text-muted-foreground flex h-auto cursor-text items-center justify-center gap-2 py-1.5 text-sm font-medium select-none [&>svg:not([class*='size-'])]:size-4 [&>kbd]:rounded-[calc(var(--radius)-5px)] group-data-[disabled=true]/input-group:opacity-50",
	{
		variants: {
			align: {
				'inline-start':
					'order-first ps-3 has-[>button]:ms-[-0.45rem] has-[>kbd]:ms-[-0.35rem]',
				'inline-end':
					'order-last pe-3 has-[>button]:me-[-0.45rem] has-[>kbd]:me-[-0.35rem]',
				'block-start':
					'order-first w-full justify-start px-3 pt-3 [.border-b]:pb-3 group-has-[>input]/input-group:pt-2.5',
				'block-end':
					'order-last w-full justify-start px-3 pb-3 [.border-t]:pt-3 group-has-[>input]/input-group:pb-2.5',
			},
		},
		defaultVariants: {
			align: 'inline-start',
		},
	},
);

function InputGroupAddon({
	className,
	align = 'inline-start',
	...props
}: React.ComponentProps<'div'> & VariantProps<typeof inputGroupAddonVariants>) {
	return (
		<div
			role="group"
			data-slot="input-group-addon"
			data-align={align}
			className={cn(inputGroupAddonVariants({ align }), className)}
			onClick={(e) => {
				if ((e.target as HTMLElement).closest('button')) {
					return;
				}
				e.currentTarget.parentElement?.querySelector('input')?.focus();
			}}
			{...props}
		/>
	);
}

const inputGroupButtonVariants = cva(
	'text-sm shadow-none flex gap-2 items-center',
	{
		variants: {
			size: {
				xs: "h-6 gap-1 px-2 rounded-[calc(var(--radius)-5px)] [&>svg:not([class*='size-'])]:size-3.5 has-[>svg]:px-2",
				sm: 'h-8 px-2.5 gap-1.5 rounded-md has-[>svg]:px-2.5',
				'icon-xs':
					'size-6 rounded-[calc(var(--radius)-5px)] p-0 has-[>svg]:p-0',
				'icon-sm': 'size-8 p-0 has-[>svg]:p-0',
			},
		},
		defaultVariants: {
			size: 'xs',
		},
	},
);

function InputGroupButton({
	className,
	type = 'button',
	variant = 'ghost',
	size = 'xs',
	...props
}: Omit<React.ComponentProps<typeof Button>, 'size'> &
	VariantProps<typeof inputGroupButtonVariants>) {
	return (
		<Button
			type={type}
			data-size={size}
			variant={variant}
			className={cn(inputGroupButtonVariants({ size }), className)}
			{...props}
		/>
	);
}

function InputGroupText({ className, ...props }: React.ComponentProps<'span'>) {
	return (
		<span
			className={cn(
				"text-muted-foreground flex items-center gap-2 text-sm [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4",
				className,
			)}
			{...props}
		/>
	);
}

function InputGroupInput({
	className,
	...props
}: React.ComponentProps<'input'>) {
	return (
		<Input
			data-slot="input-group-control"
			className={cn(
				'flex-1 rounded-none border-0 bg-transparent shadow-none focus-visible:ring-0 dark:bg-transparent',
				className,
			)}
			{...props}
		/>
	);
}

function InputGroupTextarea({
	className,
	...props
}: React.ComponentProps<'textarea'>) {
	return (
		<Textarea
			data-slot="input-group-control"
			className={cn(
				'flex-1 resize-none rounded-none border-0 bg-transparent py-3 shadow-none focus-visible:ring-0 dark:bg-transparent',
				className,
			)}
			{...props}
		/>
	);
}

export {
	InputGroup,
	InputGroupAddon,
	InputGroupButton,
	InputGroupInput,
	InputGroupText,
	InputGroupTextarea,
};