import * as React from "react";
import { Slot } from "@radix-ui/react-slot@1.1.2";
import { cva, type VariantProps } from "class-variance-authority@0.7.1";

import { cn } from "./utils";

const buttonVariants = cva(
  "inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-md text-sm font-medium transition-all disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4 shrink-0 [&_svg]:shrink-0 outline-none focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px] aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive",
  {
    variants: {
      variant: {
        default: "bg-primary text-primary-foreground hover:bg-primary/90",
        destructive:
          "bg-destructive text-white hover:bg-destructive/90 focus-visible:ring-destructive/20 dark:focus-visible:ring-destructive/40 dark:bg-destructive/60",
        outline:
          "border bg-background text-foreground hover:bg-accent hover:text-accent-foreground dark:bg-input/30 dark:border-input dark:hover:bg-input/50",
        secondary:
          "bg-secondary text-secondary-foreground hover:bg-secondary/80",
        ghost:
          "hover:bg-accent hover:text-accent-foreground dark:hover:bg-accent/50",
        link: "text-primary underline-offset-4 hover:underline",
        shine: "relative bg-gradient-to-r from-primary to-secondary text-white font-medium shadow-lg hover:shadow-xl transition-all duration-300 transform hover:scale-105 overflow-hidden group [&>span]:text-white [&>span]:font-medium",
      },
      size: {
        default: "h-9 px-4 py-2 has-[>svg]:px-3",
        sm: "h-8 rounded-md gap-1.5 px-3 has-[>svg]:px-2.5",
        lg: "h-10 rounded-md px-6 has-[>svg]:px-4",
        xl: "h-12 rounded-xl px-10 has-[>svg]:px-8",
        icon: "size-9 rounded-md",
      },
    },
    defaultVariants: {
      variant: "default",
      size: "default",
    },
  },
);

const Button = React.forwardRef<
  HTMLButtonElement,
  React.ComponentProps<"button"> &
    VariantProps<typeof buttonVariants> & {
      asChild?: boolean;
      withShine?: boolean;
    }
>(({ className, variant, size, asChild = false, withShine = false, children, ...props }, ref) => {
  const Comp = asChild ? Slot : "button";
  
  const buttonContent = withShine ? (
    <>
      <span className="relative z-10 text-white font-medium">{children}</span>
      {/* Shine Wave Animation */}
      <div className="absolute inset-0 opacity-30">
        <div className="wave-line-infinity h-full bg-gradient-to-r from-transparent via-white to-transparent animate-wave"></div>
      </div>
    </>
  ) : children;

  return (
    <Comp
      data-slot="button"
      className={cn(buttonVariants({ variant: withShine ? "shine" : variant, size, className }))}
      ref={ref}
      {...props}
    >
      {buttonContent}
    </Comp>
  );
});
Button.displayName = "Button";

export { Button, buttonVariants };
