Switch

"use client";

import { useState, useCallback } from "react";
import { cn } from "@/lib/utils";

export interface SwitchProps {
  checked?: boolean;
  defaultChecked?: boolean;
  onCheckedChange?: (checked: boolean) => void;
  disabled?: boolean;
  className?: string;
}

export function Switch({
  checked: controlledChecked,
  defaultChecked = false,
  onCheckedChange,
  disabled,
  className,
}: SwitchProps) {
  const [internalChecked, setInternalChecked] = useState(defaultChecked);
  const isControlled = controlledChecked !== undefined;
  const checked = isControlled ? controlledChecked : internalChecked;

  const handleClick = useCallback(() => {
    if (disabled) return;
    const next = !checked;
    if (!isControlled) setInternalChecked(next);
    onCheckedChange?.(next);
  }, [checked, disabled, isControlled, onCheckedChange]);

  return (
    <button
      role="switch"
      aria-checked={checked}
      disabled={disabled}
      onClick={handleClick}
      className={cn(
        "peer inline-flex h-5 w-9 shrink-0 cursor-pointer items-center rounded-full border-2 border-transparent transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-gray-400 focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50",
        checked ? "bg-gray-900" : "bg-gray-200",
        className,
      )}
    >
      <span
        className={cn(
          "pointer-events-none block h-4 w-4 rounded-full bg-white shadow-sm ring-0 transition-transform",
          checked ? "translate-x-4" : "translate-x-0",
        )}
      />
    </button>
  );
}