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import React, { ComponentType } from 'https://esm.sh/react'import { renderToString } from 'https://esm.sh/react-dom/server'import { DataContext } from './data.ts'import { E501 } from './error.ts'import { RouterContext } from './router.ts'import type { RouterURL } from './types.ts'import util from './util.ts'export { renderHead } from './head.ts'
export function renderPage(    data: Record<string, any>,    url: RouterURL,    App: ComponentType<any> | undefined,    Page: ComponentType<any>,) {    const pageEl = React.createElement(util.isLikelyReactComponent(Page) ? Page : E501.Page)    const appEl = App ? (util.isLikelyReactComponent(App) ? React.createElement(App, null, pageEl) : React.createElement(E501.App)) : pageEl    return renderToString(React.createElement(        DataContext.Provider,        { value: data },        React.createElement(            RouterContext.Provider,            { value: url },            appEl        )    ))}