#!/usr/bin/python3
import sys
import ox.api

if len(sys.argv) != 4:
    print('usage: %s <site> <old title prefix> <new title prefix>' % sys.argv[0])
    sys.exit(1)

site = sys.argv[1]
old_prefix = sys.argv[2]
new_prefix = sys.argv[2]

api = ox.api.signin(site)

for item in api.findDocuments({
    'query': {
        'conditions': [{'key': 'title', 'value': old_prefix, 'operator': '='}]
    },
    'keys': ['id', 'title'],
    'sort': [{'key': 'title', 'operator': '+'}],
    'range': [0, 10000]
})['data']['items']:
    n = int(item['title'][3:])
    new_title = '%s %s' % (new_prefix, n)
    print(item['title'], '->', new_title)
    api.editDocument({
        'id': item['id'],
        'title': new_title
    })