#!/usr/bin/env python
# Copyright 2019 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import argparse
import os
import sys

from lib.args import Args
from lib.cipd import Cipd
from lib.device import Device
from lib.fuzzer import Fuzzer
from lib.host import Host


def main():
  parser = Args.make_parser(
      'Starts the named fuzzer.  Additional arguments are passed through.')
  args, fuzzer_args = parser.parse_known_args()

  host = Host.from_build()
  device = Device.from_args(host, args)
  fuzzer = Fuzzer.from_args(device, args)

  with Cipd.from_args(fuzzer, args) as cipd:
    if cipd.install():
      device.store(os.path.join(cipd.root, '*'), fuzzer.data_path('corpus'))

  print('\n****************************************************************')
  print(' Starting ' + str(fuzzer) + '.')
  print(' Outputs will be written to:')
  print('   ' + fuzzer.results())
  if not args.foreground:
    print(' You should be notified when the fuzzer stops.')
    print(' To check its progress, use `fx fuzz check ' + str(fuzzer) + '`.')
    print(' To stop it manually, use `fx fuzz stop ' + str(fuzzer) + '`.')
  print('****************************************************************\n')
  fuzzer.start(fuzzer_args)

  title = str(fuzzer) + ' has stopped.'
  body = 'Output written to ' + fuzzer.results() + '.'
  print(title)
  print(body)
  host.notify_user(title, body)
  return 0


if __name__ == '__main__':
  sys.exit(main())