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

const buttonVariants = cva(
  'inline-flex items-center justify-center whitespace-nowrap rounded-md text-sm font-medium ring-offset-background transition-all focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:pointer-events-none disabled:opacity-50',
  {
    variants: {
      variant: {
        default: 'bg-primary text-primary-foreground hover:bg-primary/90',
        destructive:
          'bg-destructive text-destructive-foreground hover:bg-destructive/90',
        outline:
          'border border-input bg-background hover:bg-accent hover:text-accent-foreground',
        secondary:
          'bg-secondary text-secondary-foreground hover:bg-secondary/80',
        ghost: 'hover:bg-accent hover:text-accent-foreground',
        link: 'text-primary underline-offset-4 hover:underline',
        // Platform specific high-polish variants
        glow: 'bg-gradient-to-r from-cyan-600 to-blue-600 text-white shadow-lg shadow-cyan-500/20 hover:shadow-cyan-500/40 hover:scale-[1.02] active:scale-[0.98]',
        glass:
          'bg-slate-800/50 backdrop-blur-sm border border-slate-700 text-slate-200 hover:bg-slate-700/50 hover:text-white',
        accent:
          'bg-cyan-500/10 text-cyan-400 border border-cyan-500/20 hover:bg-cyan-500/20',
        purple:
          'bg-purple-600 text-white shadow-lg shadow-purple-500/20 hover:bg-purple-500 hover:scale-[1.02] active:scale-[0.98]',
        amber:
          'bg-amber-500 text-slate-950 shadow-lg shadow-amber-500/10 hover:bg-amber-400 hover:scale-[1.02] active:scale-[0.98]',
        blue: 'bg-blue-600 text-white shadow-lg shadow-blue-600/20 hover:bg-blue-500 hover:scale-[1.02] active:scale-[0.98]',
      },
      size: {
        default: 'h-10 px-4 py-2',
        sm: 'h-9 rounded-md px-3',
        lg: 'h-11 rounded-md px-8',
        icon: 'h-10 w-10',
        // Extra sizes for dashboard use
        xs: 'h-7 rounded-md px-2 text-[10px] font-bold uppercase tracking-wider',
      },
    },
    defaultVariants: {
      variant: 'default',
      size: 'default',
    },
  }
);

export interface ButtonProps
  extends
    React.ButtonHTMLAttributes<HTMLButtonElement>,
    VariantProps<typeof buttonVariants> {
  asChild?: boolean;
}

const Button = React.forwardRef<HTMLButtonElement, ButtonProps>(
  ({ className, variant, size, ...props }, ref) => {
    return (
      <button
        className={cn(buttonVariants({ variant, size, className }))}
        ref={ref}
        {...props}
      />
    );
  }
);
Button.displayName = 'Button';

export { Button, buttonVariants };