#! /usr/bin/env python

import os
import hashlib
import bencode
import torrententry
import torrenttracker

class TorrentFile:
    data = ()
    info = ()
    tracker = None
    filepath = ""
    def readFile(self, path):
        self.filepath = path
        with open(path, 'rb') as f:
            bencoded = f.read()
        self.readBencoded(bencoded)
        self.tracker = torrenttracker.TorrentTracker(self)

    def readBencoded(self, data):
        self.data = bencode.bdecode(data)
        self.info = self.data['info']

    def getFilepath(self):
        return self.filepath

    def getName(self):
        return self.info['name']

    def getFiles(self):
        if 'files' in self.info:
            files = []
            for file in self.info['files']:
                files.append(torrententry.TorrentEntry(os.sep.join(file['path']), file['length']))
            return files
        else:
            return [torrententry.TorrentEntry(self.info['name'], self.info['length'])]

    def getSize(self):
        size = 0
        for file in self.getFiles():
            size += file.getSize()
        return size

    def getTracker(self):
        return self.tracker

    def getAnnounce(self):
        return self.data['announce']

    def getHash(self):
        bencoded = bencode.bencode(self.info)
        return hashlib.sha1(bencoded)