#!/usr/bin/env python
import json
import sys

import feedparser

URLs_FILE = './urls.json'
CACHE_FILE = './cache.json'
exit_code = 0

with open(URLs_FILE, 'r') as fh:
    URLs = json.load(fh)

try:
    with open(CACHE_FILE, 'r') as fh:
        releases = json.load(fh)
except:
    releases = {}

for name, url in URLs.items():
    url = '/'.join([url, 'releases.atom'])
    d = feedparser.parse(url)
    latest_version = d.entries[0].title
    if latest_version != releases.get(name):
        print(f'New version for {name} ({url}): {latest_version}')
        exit_code = 1
    releases[name] = latest_version

with open(CACHE_FILE, 'w') as fh:
    json.dump(releases, fh)

sys.exit(exit_code)