package main

import (
	"github.com/zeebo/bencode"
)

type TorrentMetadata struct {
	Info bencode.RawMessage `bencode:"info"`
}

func getTorrentInfoHash(torrent []byte) (string, error) {
	torrentMetadata := &TorrentMetadata{}
	if err := bencode.DecodeBytes(torrent, torrentMetadata); err != nil {
		return "", err
	}

	return toSha1(torrentMetadata.Info), nil
}