import { test } from '@japa/runner'
import { readFileSync } from 'node:fs'
import { parseSevenZipTail } from '#lib/sevenzip/index'

const fixture = (name: string) => readFileSync(new URL(`../../fixtures/sevenzip/${name}`, import.meta.url))
const DIR = 'Some.Movie.2020.1080p.BluRay.x264-GRP'

test.group('probe / 7z listing from the archive end', () => {
  test('an LZMA-packed header (7z default): files with sizes, directories left out', ({ assert }) => {
    const listing = parseSevenZipTail(fixture('plain.tail'))
    assert.deepEqual(listing, {
      files: [
        { name: `${DIR}/empty.txt`, size: 0 },
        { name: `${DIR}/Sample/sample.mkv`, size: 20000 },
        { name: `${DIR}/grp.nfo`, size: 4 },
        { name: `${DIR}/some.movie.2020.1080p.bluray.x264-grp.mkv`, size: 300000 },
      ],
      encrypted: false,
      headerEncrypted: false,
    })
  })

  test('an uncompressed header (7z -mhc=off) and the last volume of a split archive', ({ assert }) => {
    for (const name of ['uncompressed-header.tail', 'split-last-volume.tail']) {
      const listing = parseSevenZipTail(fixture(name))!
      assert.lengthOf(listing.files, 4, name)
      assert.isFalse(listing.encrypted, name)
    }
  })

  test('encrypted entries: names listed, encrypted; an encrypted header (7z -mhe): no names, encrypted', ({ assert }) => {
    const files = parseSevenZipTail(fixture('files-encrypted.tail'))!
    assert.lengthOf(files.files, 4)
    assert.isTrue(files.encrypted)
    assert.isFalse(files.headerEncrypted)
    assert.deepEqual(parseSevenZipTail(fixture('header-encrypted.tail')), { files: [], encrypted: true, headerEncrypted: true })
  })

  test('a whole small archive; not the end of an archive: null', ({ assert }) => {
    assert.deepEqual(parseSevenZipTail(fixture('tiny.7z'))?.files.map((f) => f.name), ['a.txt', 'b.nfo'])
    // The end cut off, or data that isn't 7z at all.
    assert.isNull(parseSevenZipTail(fixture('plain.tail').subarray(0, 30000)))
    assert.isNull(parseSevenZipTail(fixture('sample.bin')))
  })
})