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# Copyright 2015 Egor Tensin <Egor.Tensin@gmail.com>
# This file is licensed under the terms of the MIT License.
# See LICENSE.txt for details.
from vk.api import API, Language
from vk.tracking import StatusTracker
from vk.tracking.db import Format
if __name__ == '__main__':
import argparse, sys
def natural_number(s):
x = int(s)
if x < 1:
raise argparse.ArgumentError()
return x
def output_format(s):
try:
return Format(s)
except ValueError:
raise argparse.ArgumentError()
parser = argparse.ArgumentParser(
description='Track when people go online/offline.')
parser.add_argument(metavar='UID', dest='uids', nargs='+',
help='user IDs or "screen names"')
parser.add_argument('-t', '--timeout', type=natural_number,
default=StatusTracker.DEFAULT_TIMEOUT,
help='set refresh interval (seconds)')
parser.add_argument('-l', '--log', default=sys.stdout,
type=argparse.FileType('w'),
help='set log file path (standard output by default)')
parser.add_argument('--output-format',
type=output_format, default=Format.CSV,
choices=tuple(fmt for fmt in Format),
help='set database format')
parser.add_argument('-o', '--output', default=None,
type=argparse.FileType('w'),
help='set database file path')
args = parser.parse_args()
api = API(Language.EN)
tracker = StatusTracker(api, args.timeout)
if args.output_format is Format.LOG or args.output is None:
args.output_format = Format.NULL
with Format.LOG.create_writer(args.log) as log_writer:
tracker.add_database_writer(log_writer)
with args.output_format.create_writer(args.output) as db_writer:
tracker.add_database_writer(db_writer)
try:
tracker.loop(args.uids)
except Exception as e:
log_writer.exception(e)
sys.exit(1)
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