downloader/download_torrent_file.go

package main

import (
	"fmt"
	"io"
	"net/http"
	"os"
	"path"
	"path/filepath"

	"git.milar.in/nyaanime/model"
)

func DownloadTorrent(animeEp model.AnimeEpisode, torrent *model.ParsedTorrent) error {
	if err := SetCurrentlyDownloading(animeEp); err != nil {
		return ErrLockFileCreationFailed.Wrap(err, animeEp.Anime.Title.Romaji, animeEp.Episode)
	}

	torrentFilePath := filepath.Join(TorrentPath, path.Base(torrent.Torrent.Link))

	fmt.Printf("download: %s -> %s\n", torrent.Torrent.Link, torrentFilePath)

	resp, err := http.Get(torrent.Torrent.Link)
	if err != nil {
		return ErrDownloadTorrentFileFailed.Wrap(err, torrent.Torrent.Link)
	}
	defer resp.Body.Close()

	file, err := os.Create(torrentFilePath)
	if err != nil {
		return ErrSaveTorrentFileFailed.Wrap(err, torrent.Torrent.Link)
	}
	defer file.Close()

	_, err = io.Copy(file, resp.Body)
	if err != nil {
		return ErrSaveTorrentFileFailed.Wrap(err, torrent.Torrent.Link)
	}

	return nil
}