import sqlite3, json
# price_events in web-dashboard db
c = sqlite3.connect('/home/hmo/web-dashboard/data/mofin.db')
try:
    r = c.execute("SELECT MAX(created_at), COUNT(*) FROM price_events").fetchone()
    print('web-dashboard mofin.db price_events:', r)
except Exception as e:
    print('web-dashboard db err:', e)
c.close()

# price_events.json tail
try:
    d = json.load(open('/home/hmo/web-dashboard/data/price_events.json'))
    print('price_events.json type:', type(d).__name__, 'len:', len(d) if hasattr(d, '__len__') else '?')
    items = d if isinstance(d, list) else d.get('events', [])
    if items:
        print('last event:', json.dumps(items[-1], ensure_ascii=False)[:250])
except Exception as e:
    print('json err:', e)