#!/usr/bin/python
# -*- coding: utf-8 -*-

# python switch_tei_tags.py ~/slovnica/nova_slovnica/output/tei_pipeline/tei_tokenised ~/slovnica/nova_slovnica/output/tei_pipeline/tei_for_tagger  

import sys
import os
import shutil
import codecs

import lxml.etree as lxml

input_directory = sys.argv[1]
output_directory = sys.argv[2]

shutil.rmtree(output_directory,True)
os.makedirs(output_directory)

tei_namespace = 'http://www.tei-c.org/ns/1.0'
tei_namespace_qualifier = '{' + tei_namespace + '}'

def do_file(input_file_name):
    if (input_file_name.endswith('.xml')):
        with open(log, 'a') as fp:
             fp.write(input_file_name + "\n")

        tree = lxml.parse(unicode(input_directory + '/' + input_file_name))
        root = tree.getroot()
        spaces = root.xpath('.//tei:c', namespaces={'tei':tei_namespace})
        for space in spaces:
            space.tag = tei_namespace_qualifier + 'S'
            space.text = None
        punctuations = root.xpath('.//tei:pc', namespaces={'tei':tei_namespace})
        for punctuation in punctuations:
            punctuation.tag = tei_namespace_qualifier + 'c'
        output_file_name = output_directory + '/' + input_file_name
        tree.write(output_file_name, encoding='UTF-8', pretty_print=True)

if __name__ == "__main__":
    for fname in input_file_names:
        do_file(fname)