package fs

import (
	"os"
	"testing"

	"github.com/anacrolix/torrent"

	"github.com/stretchr/testify/require"
)

const testMagnet = "magnet:?xt=urn:btih:a88fda5954e89178c372716a6a78b8180ed4dad3&dn=The+WIRED+CD+-+Rip.+Sample.+Mash.+Share&tr=udp%3A%2F%2Fexplodie.org%3A6969&tr=udp%3A%2F%2Ftracker.coppersurfer.tk%3A6969&tr=udp%3A%2F%2Ftracker.empire-js.us%3A1337&tr=udp%3A%2F%2Ftracker.leechers-paradise.org%3A6969&tr=udp%3A%2F%2Ftracker.opentrackr.org%3A1337&tr=wss%3A%2F%2Ftracker.btorrent.xyz&tr=wss%3A%2F%2Ftracker.fastcast.nz&tr=wss%3A%2F%2Ftracker.openwebtorrent.com&ws=https%3A%2F%2Fwebtorrent.io%2Ftorrents%2F&xs=https%3A%2F%2Fwebtorrent.io%2Ftorrents%2Fwired-cd.torrent"

func TestTorrentFilesystem(t *testing.T) {
	t.Parallel()

	require := require.New(t)

	cfg := torrent.NewDefaultClientConfig()
	cfg.DataDir = os.TempDir()

	client, err := torrent.NewClient(cfg)
	require.NoError(err)

	torrent, err := client.AddMagnet(testMagnet)
	require.NoError(err)

	tfs := NewTorrent(torrent)

	files, err := tfs.ReadDir("/")
	require.NoError(err)
	require.Len(files, 1)
	require.Contains(files, "The WIRED CD - Rip. Sample. Mash. Share")

	files, err = tfs.ReadDir("/The WIRED CD - Rip. Sample. Mash. Share")
	require.NoError(err)
	require.Len(files, 18)

	f, err := tfs.Open("/The WIRED CD - Rip. Sample. Mash. Share/not_existing_file.txt")
	require.Equal(os.ErrNotExist, err)
	require.Nil(f)

	f, err = tfs.Open("/The WIRED CD - Rip. Sample. Mash. Share/01 - Beastie Boys - Now Get Busy.mp3")
	require.NoError(err)
	require.NotNil(f)
	require.Equal(f.Size(), int64(1964275))
	require.NoError(f.Close())
}