opencode/packages/web/src/components/CodeBlock.tsx

import {
  type JSX,
  onCleanup,
  splitProps,
  createEffect,
  createResource,
} from "solid-js"
import { codeToHtml } from "shiki"
import styles from "./codeblock.module.css"
import { transformerNotationDiff } from "@shikijs/transformers"

interface CodeBlockProps extends JSX.HTMLAttributes<HTMLDivElement> {
  code: string
  lang?: string
  onRendered?: () => void
}
function CodeBlock(props: CodeBlockProps) {
  const [local, rest] = splitProps(props, ["code", "lang", "onRendered"])
  let containerRef!: HTMLDivElement

  const [html] = createResource(async () => {
    return (await codeToHtml(local.code, {
      lang: local.lang || "text",
      themes: {
        light: "github-light",
        dark: "github-dark",
      },
      transformers: [transformerNotationDiff()],
    })) as string
  })

  onCleanup(() => {
    if (containerRef) containerRef.innerHTML = ""
  })

  createEffect(() => {
    if (html() && containerRef) {
      containerRef.innerHTML = html() as string

      local.onRendered?.()
    }
  })

  return <div ref={containerRef} class={styles.codeblock} {...rest}></div>
}

export default CodeBlock