shadcn-ui/apps/www/components/theme-component.tsx

"use client"

import * as React from "react"
import { Index } from "@/__registry__"

import { cn } from "@/lib/utils"
import { useConfig } from "@/hooks/use-config"
import { Icons } from "@/components/icons"

interface ThemeComponentProps extends React.HTMLAttributes<HTMLDivElement> {
  name: string
  extractClassname?: boolean
  extractedClassNames?: string
  align?: "center" | "start" | "end"
}

export function ThemeComponent({ name, ...props }: ThemeComponentProps) {
  const [config] = useConfig()

  const Preview = React.useMemo(() => {
    const Component = Index[config.style][name]?.component

    if (!Component) {
      return (
        <p className="text-sm text-muted-foreground">
          Component{" "}
          <code className="relative rounded bg-muted px-[0.3rem] py-[0.2rem] font-mono text-sm">
            {name}
          </code>{" "}
          not found in registry.
        </p>
      )
    }

    return <Component />
  }, [name, config.style])

  return (
    <div className={cn("relative")} {...props}>
      <React.Suspense
        fallback={
          <div className="flex items-center text-sm text-muted-foreground">
            <Icons.spinner className="mr-2 h-4 w-4 animate-spin" />
            Loading...
          </div>
        }
      >
        {Preview}
      </React.Suspense>
    </div>
  )
}