#!/usr/bin/env python3

from os import environ
from requests import get, post
from sys import argv, exit


SYNAPSE_MAX_ROOMS_TO_GET = 20000
SYNAPSE_HOST = 'http://[::1]:20080/'

if 'MATRIX_AUTH_TOKEN' in environ:
    SYNAPSE_AUTH_TOKEN = environ['MATRIX_AUTH_TOKEN']
else:
    print('Usage: MATRIX_AUTH_TOKEN=\'your_token_here\' {}'.format(argv[0]))
    exit(255)

json = get(
    SYNAPSE_HOST + '_synapse/admin/v1/rooms?limit={}'.format(SYNAPSE_MAX_ROOMS_TO_GET),
    headers={
        'Authorization': 'Bearer {}'.format(SYNAPSE_AUTH_TOKEN),
    },
).json()

if 'rooms' not in json:
    print(json)
    exit(1)

print('Found a total of {} rooms on {}'.format(len(json['rooms']), SYNAPSE_HOST))
print()

for room in json['rooms']:
    print(
        'Checking {} ({}) ... '.format(
            room['room_id'],
            room['canonical_alias'],
        ),
        end='',
    )

    if room['joined_local_members'] > 0:
        print('room has local members!')
        continue
    else:
        print('no local members')

    print('Room info:')
    print('  Name: {}'.format(room['name']))
    print('  Members: {}'.format(room['joined_members']))
    print('  Creator: {}'.format(room['creator']))

    if input('Do you wish to remove this room? [yN]') in ['y', 'Y']:
        print(post(
            SYNAPSE_HOST + '_synapse/admin/v1/rooms/{}/delete'.format(room['room_id']),
            headers={
                'Authorization': 'Bearer {}'.format(SYNAPSE_AUTH_TOKEN),
            },
            json={
                'purge': True,
            },
        ).json())
    else:
        print('Declined.')

    print()