#!/usr/bin/env python3
from __future__ import absolute_import
from __future__ import print_function

from typing import List, Text
# check for the venv
from lib import sanity_check
sanity_check.check_venv(__file__)

import argparse
import json
import os
import sys
import subprocess

sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
from scripts.lib.zulip_tools import WARNING, FAIL, ENDC

def find_handlebars(translatable_strings):
    # type: (List[Text]) -> List[Text]
    errored = []
    for string in translatable_strings:
        if '{{' in string:
            errored.append(string)
    return errored

if __name__ == '__main__':
    parser = argparse.ArgumentParser()
    parser.add_argument('--no-generate',
                        action='store_true', dest='no_generate', default=False,
                        help="Don't run makemessages command.")
    args = parser.parse_args()

    if not args.no_generate:
        subprocess.call(['./manage.py', 'makemessages', '--locale', 'en'],
                        stderr=subprocess.STDOUT)

    with open('static/locale/en/translations.json') as f:
        data = json.load(f)

    found = find_handlebars(list(data.keys()))
    if found:
        print(WARNING + "Translation strings contain handlebars:" + ENDC)
        print('\n'.join(found))

        print(WARNING +
              "See http://zulip.readthedocs.io/en/latest/translating.html#frontend-translations "
              "on how you can insert variables in the frontend translatable "
              "strings." +
              ENDC)
        print(FAIL + "Failed!" + ENDC)
        sys.exit(1)
    else:
        sys.exit(0)