import * as React from 'react';
import { cva, type VariantProps } from 'class-variance-authority';
import { cn } from '@/lib/utils';

// Spec source: Figma "APP Re-design Phase 1" → page "Alert ✅"
// radius=16 (rounded-2xl), padding=16 (p-4), border 1px #e5e5e5 (border)
const alertVariants = cva(
  'relative grid w-full grid-cols-[0_1fr] items-start gap-y-3 rounded-2xl border px-4 py-4 text-sm has-[>svg]:grid-cols-[calc(var(--spacing)*4)_1fr] has-[>svg]:gap-x-3 [&>svg]:size-5 [&>svg]:translate-y-0.5 [&>svg]:text-current',
  {
    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('col-start-2 line-clamp-1 min-h-4 font-headline text-base font-medium tracking-tight', className)}
      {...props}
    />
  );
}

function AlertDescription({ className, ...props }: React.ComponentProps<'div'>) {
  return (
    <div
      data-slot="alert-description"
      className={cn(
        'col-start-2 grid justify-items-start gap-1 text-sm text-muted-foreground [&_p]:leading-relaxed',
        className,
      )}
      {...props}
    />
  );
}

export { Alert, AlertTitle, AlertDescription };