Function readResponseSnippet

ui-tui/src/lib/externalLink.ts:265–327

(response: Response)

}

async function readResponseSnippet(response: Response): Promise<string> {
  const reader = response.body?.getReader()

  if (!reader) {
    return (await response.text()).slice(0, TITLE_BYTE_BUDGET)
  }

  const chunks: Uint8Array[] = []
  let done = false
  let bytes = 0

  try {
    while (bytes < TITLE_BYTE_BUDGET) {
      const chunk = await reader.read()

      if (chunk.done) {
        done = true

        break
      }

      const value = chunk.value

      if (!value?.length) {
        continue
      }

      const remaining = TITLE_BYTE_BUDGET - bytes
      const next = value.length > remaining ? value.subarray(0, remaining) : value

      chunks.push(next)
      bytes += next.length

      if (next.length < value.length) {
        break
      }
    }
  } catch {
    return ''
  } finally {
    if (!done) {
      try {
        await reader.cancel()
      } catch {
        // Ignore stream teardown failures.
      }
    }
  }

  if (!chunks.length) {
    return ''
  }

  const joined = new Uint8Array(bytes)
  let offset = 0

  for (const chunk of chunks) {
    joined.set(chunk, offset)