import xml.etree.ElementTree as ET
import argparse
import sys

def unicode_to_vcf_str(unicode_str):
	if type(unicode_str) == type(None):
		return ''
	hex_list = ['=' + i.encode('hex').upper() for i in unicode_str.encode('utf-8')]
	return ''.join(hex_list)

def main(argv):
	parser = argparse.ArgumentParser()
	parser.add_argument('input_file', help='xml file to parse')
	parser.add_argument('-o', '--output-file', help='vcf output file', default='output.vcf')
	args = parser.parse_args()
	tree = ET.parse(args.input_file)
	contact_records = tree.getroot()
	with open(args.output_file, 'wb') as output:
		for contact in contact_records:
			display_name = unicode_to_vcf_str(contact.find('structuredName').find('displayName').text)
			phone_number = contact.find('phones').find('phone').find('number').text
			output.write('BEGIN:VCARD\n')
			output.write('VERSION:2.1\n')
			if display_name:
				output.write('FN;CHARSET=UTF-8;ENCODING=QUOTED-PRINTABLE:{0}\n'.format(display_name))
			if phone_number:
				output.write('TEL;CELL:{0}\n'.format(phone_number))
			output.write('END:VCARD\n')

		

if __name__ == '__main__':
	main(sys.argv)