import codecs

def tvgParser(txt):
	d = {}
	buf = ''
	k = ''
	inbrace = False
	for c in txt:
		if c == '"':
			if inbrace:
				inbrace = False
				d[k] = buf
				buf = ''
				k = ''
			else:
				inbrace = True
			continue

		if c == '=':
			k = buf
			buf = ''
			continue

		if c == ' ':
			if inbrace:
				buf = '%s%s' % (buf,c)
			continue

		buf = '%s%s' % (buf,c)

	if k != '':
		v = buf
		d[k] = v
	return d

def channelInfo(l):
	g = {}
	e = l.split(',')
	info = e[-2]
	fo=info.split(' ',1)
	if len(fo) == 2:
		_,tvginfo=info.split(' ',1)
		g = tvgParser(tvginfo)
	g['name'] = e[-1]
	return g

def m3uParser(text):
	text = ''.join(text.split('\r'))
	newchannel = False
	channels = []
	for i,line in enumerate(text.split('\n')):
		if i==0 and not line.startswith('#EXTM3U'):
			return None
		if i == 0:
			continue
		if line == '':
			continue
		if line.startswith('#EXTINF'):
			channel = channelInfo(line)
			status = 'url'
			continue
		if line.startswith('http://') or line.startswith('https://'):
			channel['url'] = line
			channels.append(channel)
			continue
	return channels

def testfile(filename):
	with codecs.open(filename,'r','utf-8') as f:
		text = f.read()
		m3uParser(text)

if __name__ == '__main__':
	import sys
	testfile(sys.argv[1])