import React from "react";

type ButtonVariant =
  | "primary"
  | "secondary"
  | "success"
  | "danger"
  | "warning"
  | "info"
  | "outline"
  | "link";

interface ButtonProps {
  children: React.ReactNode;
  type?: "button" | "submit" | "reset";
  onClick?: (e: React.MouseEvent<HTMLButtonElement>) => void;
  variant?: ButtonVariant;
  size?: "sm" | "md" | "lg";
  disabled?: boolean;
  className?: string;
  icon?: React.ReactNode;
}

export function Button({
  children,
  type = "button",
  onClick,
  variant = "primary",
  size = "md",
  disabled = false,
  className = "",
  icon,
}: ButtonProps) {
  const baseClasses =
    "inline-flex items-center justify-center font-medium rounded-md focus:outline-none transition-colors";

  // Definir classes de variante
  const variantClasses = {
    primary:
      "bg-blue-600 text-white hover:bg-blue-700 focus:ring-2 focus:ring-offset-2 focus:ring-blue-500",
    secondary:
      "bg-gray-600 text-white hover:bg-gray-700 focus:ring-2 focus:ring-offset-2 focus:ring-gray-500",
    success:
      "bg-green-600 text-white hover:bg-green-700 focus:ring-2 focus:ring-offset-2 focus:ring-green-500",
    danger:
      "bg-red-600 text-white hover:bg-red-700 focus:ring-2 focus:ring-offset-2 focus:ring-red-500",
    warning:
      "bg-yellow-500 text-white hover:bg-yellow-600 focus:ring-2 focus:ring-offset-2 focus:ring-yellow-400",
    info: "bg-blue-400 text-white hover:bg-blue-500 focus:ring-2 focus:ring-offset-2 focus:ring-blue-300",
    outline:
      "bg-white text-gray-700 border border-gray-300 hover:bg-gray-50 focus:ring-2 focus:ring-offset-2 focus:ring-blue-500",
    link: "bg-transparent text-blue-600 hover:text-blue-800 hover:underline focus:ring-0",
  };

  // Definir classes de tamanho
  const sizeClasses = {
    sm: "px-2.5 py-1.5 text-xs",
    md: "px-4 py-2 text-sm",
    lg: "px-6 py-3 text-base",
  };

  // Definir classes de estado desabilitado
  const disabledClasses = "opacity-50 cursor-not-allowed";

  const buttonClasses = [
    baseClasses,
    variantClasses[variant],
    sizeClasses[size],
    disabled ? disabledClasses : "",
    className,
  ].join(" ");

  return (
    <button
      type={type}
      onClick={onClick}
      disabled={disabled}
      className={buttonClasses}
    >
      {icon && <span className="mr-2">{icon}</span>}
      {children}
    </button>
  );
}