/**
 * Copyright 2026 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

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

import { cn } from '@/lib/utils';

const alertVariants = cva(
  "group/alert relative grid w-full gap-0.5 rounded-lg border px-2.5 py-2 text-left text-sm has-data-[slot=alert-action]:relative has-data-[slot=alert-action]:pr-18 has-[>svg]:grid-cols-[auto_1fr] has-[>svg]:gap-x-2 *:[svg]:row-span-2 *:[svg]:translate-y-0.5 *:[svg]:text-current *:[svg:not([class*='size-'])]:size-4",
  {
    variants: {
      variant: {
        default: 'bg-card text-card-foreground',
        destructive:
          'bg-card text-destructive *:data-[slot=alert-description]:text-destructive/90 *:[svg]:text-current',
      },
    },
    defaultVariants: {
      variant: 'default',
    },
  }
);

function Alert({
  className,
  variant,
  ...props
}: React.ComponentProps<'div'> & VariantProps<typeof alertVariants>) {
  return (
    <div
      data-slot="alert"
      role="alert"
      className={cn(alertVariants({ variant }), className)}
      {...props}
    />
  );
}

function AlertTitle({ className, ...props }: React.ComponentProps<'div'>) {
  return (
    <div
      data-slot="alert-title"
      className={cn(
        'font-medium group-has-[>svg]/alert:col-start-2 [&_a]:underline [&_a]:underline-offset-3 [&_a]:hover:text-foreground',
        className
      )}
      {...props}
    />
  );
}

function AlertDescription({
  className,
  ...props
}: React.ComponentProps<'div'>) {
  return (
    <div
      data-slot="alert-description"
      className={cn(
        'text-sm text-balance text-muted-foreground md:text-pretty [&_a]:underline [&_a]:underline-offset-3 [&_a]:hover:text-foreground [&_p:not(:last-child)]:mb-4',
        className
      )}
      {...props}
    />
  );
}

function AlertAction({ className, ...props }: React.ComponentProps<'div'>) {
  return (
    <div
      data-slot="alert-action"
      className={cn('absolute top-2 right-2', className)}
      {...props}
    />
  );
}

export { Alert, AlertAction, AlertDescription, AlertTitle };
