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

const buttonVariants = cva(
    "inline-flex items-center justify-center whitespace-nowrap rounded-lg text-sm font-medium transition-all focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:pointer-events-none disabled:opacity-50 active:scale-[0.98]",
    {
        variants: {
            variant: {
                default:
                    "bg-primary text-primary-foreground shadow hover:bg-primary/90",
                destructive:
                    "bg-destructive text-destructive-foreground shadow-sm hover:bg-destructive/90",
                outline:
                    "border border-border bg-background shadow-sm hover:bg-muted hover:text-foreground",
                secondary:
                    "bg-secondary text-secondary-foreground shadow-sm hover:bg-secondary/80",
                ghost: "hover:bg-muted hover:text-foreground",
                link: "text-primary underline-offset-4 hover:underline",
                accent:
                    "bg-accent text-accent-foreground shadow hover:bg-accent/90",
                gradient:
                    "bg-gradient-sunset text-white shadow-lg hover:opacity-90 border-0",
            },
            size: {
                default: "h-10 px-4 py-2",
                sm: "h-9 rounded-md px-3 text-xs",
                lg: "h-12 rounded-lg px-8 text-base",
                xl: "h-14 rounded-xl px-10 text-lg",
                icon: "h-10 w-10",
            },
        },
        defaultVariants: {
            variant: "default",
            size: "default",
        },
    }
)

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

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 ? (
                    <>
                        <svg
                            className="mr-2 h-4 w-4 animate-spin"
                            xmlns="http://www.w3.org/2000/svg"
                            fill="none"
                            viewBox="0 0 24 24"
                        >
                            <circle
                                className="opacity-25"
                                cx="12"
                                cy="12"
                                r="10"
                                stroke="currentColor"
                                strokeWidth="4"
                            />
                            <path
                                className="opacity-75"
                                fill="currentColor"
                                d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"
                            />
                        </svg>
                        Loading...
                    </>
                ) : (
                    children
                )}
            </button>
        )
    }
)
Button.displayName = "Button"

export { Button, buttonVariants }