import React from "react";
import { cn } from "@/lib/utils";
import { Loader2 } from "lucide-react";
import { cva, type VariantProps } from "class-variance-authority";

const buttonVariants = cva(
  "inline-flex items-center justify-center rounded-lg text-sm font-medium transition-all duration-200 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 shadow-sm hover:bg-primary/90 hover:shadow",
        destructive:
          "bg-destructive text-destructive-foreground shadow-sm hover:bg-destructive/90 hover:shadow",
        outline:
          "border border-input bg-background shadow-sm hover:bg-accent hover:text-accent-foreground",
        secondary:
          "bg-secondary text-secondary-foreground shadow-sm hover:bg-secondary/80",
        ghost: "hover:bg-accent hover:text-accent-foreground",
        link: "text-primary underline-offset-4 hover:underline",
      },
      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",
      },
    },
    defaultVariants: {
      variant: "default",
      size: "default",
    },
  },
);

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

export const Button = React.forwardRef<HTMLButtonElement, ButtonProps>(
  (
    { className, variant, size, isLoading, children, disabled, ...props },
    ref,
  ) => {
    return (
      <button
        className={cn(buttonVariants({ variant, size, className }))}
        ref={ref}
        disabled={disabled || isLoading}
        {...props}
      >
        {isLoading && <Loader2 className="mr-2 h-4 w-4 animate-spin" />}
        {children}
      </button>
    );
  },
);
Button.displayName = "Button";