# Copyright 2015 The Chromium 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 logging
import re
import time

from devil.android import device_errors
from pylib import flag_changer
from pylib.base import base_test_result
from pylib.local.device import local_device_test_run


TIMEOUT_ANNOTATIONS = [
  ('Manual', 10 * 60 * 60),
  ('IntegrationTest', 30 * 60),
  ('External', 10 * 60),
  ('EnormousTest', 10 * 60),
  ('LargeTest', 5 * 60),
  ('MediumTest', 3 * 60),
  ('SmallTest', 1 * 60),
]


# TODO(jbudorick): Make this private once the instrumentation test_runner is
# deprecated.
def DidPackageCrashOnDevice(package_name, device):
  # Dismiss any error dialogs. Limit the number in case we have an error
  # loop or we are failing to dismiss.
  try:
    for _ in xrange(10):
      package = device.DismissCrashDialogIfNeeded()
      if not package:
        return False
      # Assume test package convention of ".test" suffix
      if package in package_name:
        return True
  except device_errors.CommandFailedError:
    logging.exception('Error while attempting to dismiss crash dialog.')
  return False


_CURRENT_FOCUS_CRASH_RE = re.compile(
    r'\s*mCurrentFocus.*Application (Error|Not Responding): (\S+)}')


class LocalDeviceInstrumentationTestRun(
    local_device_test_run.LocalDeviceTestRun):
  def __init__(self, env, test_instance):
    super(LocalDeviceInstrumentationTestRun, self).__init__(env, test_instance)
    self._flag_changers = {}

  def TestPackage(self):
    return None

  def SetUp(self):
    def substitute_external_storage(d, external_storage):
      if not d:
        return external_storage
      elif isinstance(d, list):
        return '/'.join(p if p else external_storage for p in d)
      else:
        return d

    def individual_device_set_up(dev, host_device_tuples):
      dev.Install(self._test_instance.apk_under_test,
                  permissions=self._test_instance.apk_under_test_permissions)
      dev.Install(self._test_instance.test_apk,
                  permissions=self._test_instance.test_permissions)
      for apk in self._test_instance.additional_apks:
        dev.Install(apk)

      external_storage = dev.GetExternalStoragePath()
      host_device_tuples = [
          (h, substitute_external_storage(d, external_storage))
          for h, d in host_device_tuples]
      logging.info('instrumentation data deps:')
      for h, d in host_device_tuples:
        logging.info('%r -> %r', h, d)
      dev.PushChangedFiles(host_device_tuples)
      if self._test_instance.flags:
        if not self._test_instance.package_info:
          logging.error("Couldn't set flags: no package info")
        elif not self._test_instance.package_info.cmdline_file:
          logging.error("Couldn't set flags: no cmdline_file")
        else:
          self._CreateFlagChangerIfNeeded(dev)
          logging.debug('Attempting to set flags: %r',
                        self._test_instance.flags)
          self._flag_changers[str(dev)].AddFlags(self._test_instance.flags)

    self._env.parallel_devices.pMap(
        individual_device_set_up,
        self._test_instance.GetDataDependencies())

  def TearDown(self):
    def individual_device_tear_down(dev):
      if str(dev) in self._flag_changers:
        self._flag_changers[str(dev)].Restore()

    self._env.parallel_devices.pMap(individual_device_tear_down)