'use client';

import { ButtonHTMLAttributes, forwardRef } from 'react';
import { Loader2 } from 'lucide-react';
import { cn } from '@/utils/cn';

type Variant = 'primary' | 'secondary' | 'outline' | 'ghost' | 'danger' | 'dark';
type Size = 'sm' | 'md' | 'lg' | 'icon';

interface ButtonProps extends ButtonHTMLAttributes<HTMLButtonElement> {
  variant?: Variant;
  size?: Size;
  isLoading?: boolean;
}

const variantClasses: Record<Variant, string> = {
  primary: 'bg-primary text-primary-foreground hover:opacity-90',
  secondary: 'bg-muted text-foreground hover:bg-muted/80',
  outline: 'border border-border bg-transparent hover:bg-muted',
  ghost: 'bg-transparent hover:bg-muted',
  danger: 'bg-danger text-danger-foreground hover:opacity-90',
  dark: 'bg-foreground text-background hover:opacity-90',
};

const sizeClasses: Record<Size, string> = {
  sm: 'h-8 px-3 text-sm',
  md: 'h-9 px-4 text-sm',
  lg: 'h-10 px-5 text-base',
  icon: 'h-9 w-9 p-0',
};

export const Button = forwardRef<HTMLButtonElement, ButtonProps>(
  ({ className, variant = 'primary', size = 'md', isLoading, disabled, children, ...props }, ref) => {
    return (
      <button
        ref={ref}
        disabled={disabled || isLoading}
        className={cn(
          'inline-flex items-center justify-center gap-2 rounded-md font-medium transition-colors',
          'focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-primary focus-visible:ring-offset-2 focus-visible:ring-offset-background',
          'disabled:pointer-events-none disabled:opacity-50',
          variantClasses[variant],
          sizeClasses[size],
          className
        )}
        {...props}
      >
        {isLoading && <Loader2 className="h-4 w-4 animate-spin" />}
        {children}
      </button>
    );
  }
);
Button.displayName = 'Button';