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

import { cn } from "@/lib/utils";

// "Mixed" button language for the 2026-04-29 visual-identity refresh:
//   - `default`  → dark charcoal CTA (`--cta`). The strongest action on
//                  the page. Existing `<Button>` callsites pick this up
//                  automatically with no source change.
//   - `primary`  → brand orange (`--primary`). Used to highlight a
//                  promotional / accent action ("Generate", "Continue").
//   - `outline`  → orange-tinted border + peachy hover, reads as
//                  "secondary CTA" without competing visually with the
//                  dark default.
const buttonVariants = cva(
  "inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-full text-sm font-medium ring-offset-background transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:size-4 [&_svg]:shrink-0",
  {
    variants: {
      variant: {
        default: "bg-cta text-cta-foreground hover:bg-cta/90",
        primary: "bg-primary text-primary-foreground hover:bg-primary/90",
        destructive: "bg-destructive text-destructive-foreground hover:bg-destructive/90",
        outline: "border border-input bg-background hover:bg-accent hover:text-accent-foreground",
        secondary: "bg-secondary text-secondary-foreground 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 px-3",
        lg: "h-11 px-8",
        icon: "h-10 w-10",
      },
    },
    defaultVariants: {
      variant: "default",
      size: "default",
    },
  },
);

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

const Button = React.forwardRef<HTMLButtonElement, ButtonProps>(
  ({ className, variant, size, asChild = false, ...props }, ref) => {
    const Comp = asChild ? Slot : "button";
    return <Comp className={cn(buttonVariants({ variant, size, className }))} ref={ref} {...props} />;
  },
);
Button.displayName = "Button";

export { Button, buttonVariants };