import type { ButtonHTMLAttributes, ReactNode, ReactElement } from "react";

export interface ButtonProps extends ButtonHTMLAttributes<HTMLButtonElement> {
  variant?: "primary" | "secondary" | "danger" | "ghost";
  size?: "sm" | "md" | "lg";
  children: ReactNode;
}

export function Button({
  variant = "primary",
  size = "md",
  children,
  className = "",
  ...props
}: ButtonProps): ReactElement {
  const baseStyles = "inline-flex items-center justify-center font-medium rounded-md";

  const variantStyles = {
    primary: "bg-blue-600 text-white hover:bg-blue-700",
    secondary: "bg-gray-200 text-gray-900 hover:bg-gray-300",
    danger: "bg-red-600 text-white hover:bg-red-700",
    ghost: "bg-transparent text-gray-700 hover:bg-gray-100 border border-gray-300",
  };

  const sizeStyles = {
    sm: "px-3 py-1.5 text-sm",
    md: "px-4 py-2 text-base",
    lg: "px-6 py-3 text-lg",
  };

  const combinedClassName = [baseStyles, variantStyles[variant], sizeStyles[size], className]
    .filter(Boolean)
    .join(" ");

  return (
    <button className={combinedClassName} {...props}>
      {children}
    </button>
  );
}
