import { ensureFile } from '@std/fs'
import { ZipReaderStream } from '@zip-js/zip-js'
import config from '../config.json' with { type: 'json' }

const imageName = './dist/rpi_os.img'
await ensureFile(imageName)
const image = await Deno.open(imageName, { create: true, write: true })

console.log(
	`%c[setup:image]%c getting img from %c${config.image.url}`,
	'color: royalblue; font-weight: bold',
	'',
	'text-decoration: underline',
)
const archive = await fetch(config.image.url)

if (archive.ok && archive.body) {
	console.log(
		`%c[setup:image]%c img found`,
		'color: green; font-weight: bold',
		'',
	)
} else {
	console.error(
		`%c[setup:image]%c no img found or server doesn't respond with 200`,
		'color: red; font-weight: bold',
		'',
	)
	Deno.exit(1)
}

console.log(
	`%c[setup:image]%c decompressing archive`,
	'color: royalblue; font-weight: bold',
	'',
)

let imgInArchive = false
for await (const file of archive.body.pipeThrough(new ZipReaderStream())) {
	if (file.filename.endsWith('.img')) {
		imgInArchive = true
		console.log(
			`%c[setup:image]%c found img file %c${file.filename}`,
			'color: green; font-weight: bold',
			'',
			'text-decoration: underline',
		)
		console.log(
			`%c[setup:image]%c writing file to %c${imageName}`,
			'color: royalblue; font-weight: bold',
			'',
			'text-decoration: underline',
		)
		await file.readable?.pipeTo(image.writable)
		break
	}
}

if (!imgInArchive) {
	console.error(
		`%c[setup:image]%c no img found in archive`,
		'color: red; font-weight: bold',
		'',
	)
	Deno.exit(2)
}