#!/usr/bin/env python3

import argparse
import feedparser
import json
import time

parser = argparse.ArgumentParser()
parser.add_argument('--state_file', help = 'Path to a file in which to store state.')
args = parser.parse_args()

k_feeds = {
    'tildefriends': 'https://dev.tildefriends.net/cory/tildefriends.rss',
    'erlbutt': 'https://github.com/cmoid/erlbutt/commits/main.atom',
    'habitat': 'https://gitlab.com/quickdudley/habitat/-/commits/main.atom',
    'habitat': 'https://gitlab.com/quickdudley/habitat/-/commits/internet.atom',
    'manyverse': 'https://gitlab.com/staltz/manyverse/-/commits/master?format=atom',
    'ahau': 'https://gitlab.com/ahau/ahau/-/commits/master.atom',
}

def fix_title(entry):
    if entry.summary.startswith('<a href=') and '\n' in entry.summary and entry.summary and '\n' in entry.summary:
        return entry.summary.split('\n')[1]
    return entry.title.split('\n')[0]

def get_entries():
    results = []
    for name, url in k_feeds.items():
        feed = feedparser.parse(url)
        for entry in feed.entries:
            results.append((time.mktime(entry.get('updated_parsed')), name, entry.link, fix_title(entry)))
    results.sort()
    results.reverse()
    return results

state = {}
if args.state_file:
    try:
        with open(args.state_file, 'r') as f:
            state = json.load(f)
    except:
        pass
cutoff = state.get('last_update') or (time.time() - 2 * 7 * 24 * 60 * 60)

entries = get_entries()
if entries:
    text = '# Recent Secure Scuttlebutt Development Activity\n\n' + '\n'.join([f' * [{entry[1]}] [{entry[3]}]({entry[2]})' for entry in entries if entry[0] > cutoff])
    state['last_update'] = entries[0][0]
    if args.state_file:
        with open(args.state_file, 'w') as f:
            json.dump(state, f)
        content = json.dumps({'type': 'post', 'text': text, 'mentions': []})
        subprocess.check_call(['out/debug/tildefriends', 'publish', '--user', 'cory', '--identity', '@DnYDqFfmxdNkYQlpflF9Wkltk2HIhJ5u1MW5njKPLzM=.ed25519', '--content', content])
    else:
        print(text)