protected async printImages()

in src/base-commands/api.ts [24:69]
41 lines of code
12 McCabe index (conditional complexity)

  protected async printImages(images: any[], field: string[] | undefined, thumbnail: boolean, outputFile?: string | undefined) {
    const outputStream = outputFile ? createWriteStream(outputFile) : undefined
    const writeOutput = (o: string): void => {
      if (outputStream) {
        outputStream.write(o + '\n')
      } else {
        process.stdout.write(o + '\n')
      }
    }

    const output = Promise.all(images.map(async image => {
      const out = field === undefined ? JSON.stringify(image, null, 2) :
        field.map(f => {
          const v = get(image, f) ?? get(image.data, f)
          if (v) return v
          const links = ((image.links || []) as unknown as { rel: string, href: string }[])
          const link = links.find(({ rel }) => rel === f)
          if (link) {
            return terminalLink(link.rel, link.href)
          }

          throw new Error(`No field named ${f} for image ${image}`)
        }).join('\t')

      if (!thumbnail) {
        return [out]
      }

      const url = image?.data?.thumbnail?.secureUrl ?? ''
      try {
        const resp = await this.http!.get(new URL(url))
        const buffer = await resp.buffer()
        const thumb = await terminalImage.buffer(buffer, { height: '20%' })
        return [out, thumb]
      } catch {
        return [out]
      }
    }))

    for (const [fields, thumb] of await output) {
      writeOutput(fields)
      if (thumb) {
        writeOutput(thumb)
      }
    }
  }