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/** Keep desktop --serve and orcad readiness stdout consistent. */

import { statSync } from 'node:fs'

import { isAbsolute } from 'node:path'

export async function renderServePairingQr(pairingUrl: string): Promise<string | null> {

// Defer qrcode parsing until pairing is actually used.

const QRCode = await import('qrcode')

try {

return await QRCode.toString(pairingUrl, { type: 'terminal', small: true })

} catch {

try {

return await QRCode.toString(pairingUrl, { type: 'utf8' })

} catch {

return null

}

/** The recipe line names this root, so it must be a real absolute directory. */

export function assertServeProjectRoot(projectRoot: string): string {

if (!isAbsolute(projectRoot)) {

throw new Error(`--serve-project-root must be absolute: ${projectRoot}`)

}

if (!statSync(projectRoot).isDirectory()) {

throw new Error(`--serve-project-root must be a directory: ${projectRoot}`)

}

return projectRoot

}