#!/usr/bin/env python2.7

import argparse
import datetime
import os
import re
import subprocess
import sys
import threading
import time

QUIET = False

# ANSI escape sequences
if sys.stdout.isatty():
  BOLD = "\033[1m"
  RED = "\033[91m" + BOLD
  GREEN = "\033[92m" + BOLD
  YELLOW = "\033[93m" + BOLD
  UNDERLINE = "\033[4m"
  ENDCOLOR = "\033[0m"
  CLEARLINE = "\033[K"
  STDOUT_IS_TTY = True
else:
  BOLD = ""
  RED = ""
  GREEN = ""
  YELLOW = ""
  UNDERLINE = ""
  ENDCOLOR = ""
  CLEARLINE = ""
  STDOUT_IS_TTY = False

def PrintStatus(s):
  """Prints a bold underlined status message"""
  sys.stdout.write("\n")
  sys.stdout.write(BOLD)
  sys.stdout.write(UNDERLINE)
  sys.stdout.write(s)
  sys.stdout.write(ENDCOLOR)
  sys.stdout.write("\n")


def PrintCommand(cmd, env=None):
  """Prints a bold line of a shell command that is being run"""
  if not QUIET:
    sys.stdout.write(BOLD)
    if env:
      for k,v in env.iteritems():
        if " " in v and "\"" not in v:
          sys.stdout.write("%s=\"%s\" " % (k, v.replace("\"", "\\\"")))
        else:
          sys.stdout.write("%s=%s " % (k, v))
    sys.stdout.write(" ".join(cmd))
    sys.stdout.write(ENDCOLOR)
    sys.stdout.write("\n")


class ExecutionException(Exception):
  """Thrown to cleanly abort operation."""
  def __init__(self,*args,**kwargs):
    Exception.__init__(self,*args,**kwargs)


class Adb(object):
  """Encapsulates adb functionality."""

  def __init__(self):
    """Initialize adb."""
    self._command = ["adb"]


  def Exec(self, cmd, stdout=None, stderr=None):
    """Runs an adb command, and prints that command to stdout.

      Raises:
        ExecutionException: if the adb command returned an error.

      Example:
        adb.Exec("shell", "ls") will run "adb shell ls"
    """
    cmd = self._command + cmd
    PrintCommand(cmd)
    result = subprocess.call(cmd, stdout=stdout, stderr=stderr)
    if result:
      raise ExecutionException("adb: %s returned %s" % (cmd, result))


  def WaitForDevice(self):
    """Waits for the android device to be available on usb with adbd running."""
    self.Exec(["wait-for-device"])


  def Run(self, cmd, stdout=None, stderr=None):
    """Waits for the device, and then runs a command.

      Raises:
        ExecutionException: if the adb command returned an error.

      Example:
        adb.Run("shell", "ls") will run "adb shell ls"
    """
    self.WaitForDevice()
    self.Exec(cmd, stdout=stdout, stderr=stderr)


  def Get(self, cmd):
    """Waits for the device, and then runs a command, returning the output.

      Raises:
        ExecutionException: if the adb command returned an error.

      Example:
        adb.Get(["shell", "ls"]) will run "adb shell ls"
    """
    self.WaitForDevice()
    cmd = self._command + cmd
    PrintCommand(cmd)
    try:
      text = subprocess.check_output(cmd)
      return text.strip()
    except subprocess.CalledProcessError as ex:
      raise ExecutionException("adb: %s returned %s" % (cmd, ex.returncode))


  def Shell(self, cmd, stdout=None, stderr=None):
    """Runs an adb shell command
      Args:
        cmd: The command to run.

      Raises:
        ExecutionException: if the adb command returned an error.

      Example:
        adb.Shell(["ls"]) will run "adb shell ls"
    """
    cmd = ["shell"] + cmd
    self.Run(cmd, stdout=stdout, stderr=stderr)


  def GetProp(self, name):
    """Gets a system property from the device."""
    return self.Get(["shell", "getprop", name])


  def Reboot(self):
    """Reboots the device, and waits for boot to complete."""
    # Reboot
    self.Run(["reboot"])
    # Wait until it comes back on adb
    self.WaitForDevice()
    # Poll until the system says it's booted
    while self.GetProp("sys.boot_completed") != "1":
      time.sleep(2)
    # Dismiss the keyguard
    self.Shell(["wm", "dismiss-keyguard"]);

  def GetBatteryProperties(self):
    """A dict of the properties from adb shell dumpsys battery"""
    def ConvertVal(s):
      if s == "true":
        return True
      elif s == "false":
        return False
      else:
        try:
          return int(s)
        except ValueError:
          return s
    text = self.Get(["shell", "dumpsys", "battery"])
    lines = [line.strip() for line in text.split("\n")][1:]
    lines = [[s.strip() for s in line.split(":", 1)] for line in lines]
    lines = [(k,ConvertVal(v)) for k,v in lines]
    return dict(lines)

  def GetBatteryLevel(self):
    """Returns the battery level"""
    return self.GetBatteryProperties()["level"]


def CurrentTimestamp():
  """Returns the current time in a format suitable for filenames."""
  return datetime.datetime.now().strftime("%Y-%m-%d-%H-%M-%S")


def ParseOptions():
  """Parse the command line options.

    Returns an argparse options object.
  """
  parser = argparse.ArgumentParser(description="Run monkeys and collect the results.")
  parser.add_argument("--dir", action="store",
                      help="output directory for results of monkey runs")
  parser.add_argument("--events", action="store", type=int, default=125000,
                      help="number of events per monkey run")
  parser.add_argument("-p", action="append", dest="packages",
                      help="package to use (default is a set of system-wide packages")
  parser.add_argument("--runs", action="store", type=int, default=10000000,
                      help="number of monkey runs to perform")
  parser.add_argument("--type", choices=["crash", "anr"],
                      help="only stop on errors of the given type (crash or anr)")
  parser.add_argument("--description", action="store",
                      help="only stop if the error description contains DESCRIPTION")

  options = parser.parse_args()
  
  if not options.dir:
    options.dir = "monkeys-%s" % CurrentTimestamp()

  if not options.packages:
    options.packages = [
        "com.google.android.deskclock",
        "com.android.calculator2",
        "com.google.android.contacts",
        "com.android.launcher",
        "com.google.android.launcher",
        "com.android.mms",
        "com.google.android.apps.messaging",
        "com.android.phone",
        "com.google.android.dialer",
        "com.android.providers.downloads.ui",
        "com.android.settings",
        "com.google.android.calendar",
        "com.google.android.GoogleCamera",
        "com.google.android.apps.photos",
        "com.google.android.gms",
        "com.google.android.setupwizard",
        "com.google.android.googlequicksearchbox",
        "com.google.android.packageinstaller",
        "com.google.android.apps.nexuslauncher"
      ]

  return options


adb = Adb()

def main():
  """Main entry point."""

  def LogcatThreadFunc():
    logcatProcess.communicate()

  options = ParseOptions()

  # Set up the device a little bit
  PrintStatus("Setting up the device")
  adb.Run(["root"])
  time.sleep(2)
  adb.WaitForDevice()
  adb.Run(["remount"])
  time.sleep(2)
  adb.WaitForDevice()
  adb.Shell(["echo ro.audio.silent=1 > /data/local.prop"])
  adb.Shell(["chmod 644 /data/local.prop"])

  # Figure out how many leading zeroes we need.
  pattern = "%%0%dd" % len(str(options.runs-1))

  # Make the output directory
  if os.path.exists(options.dir) and not os.path.isdir(options.dir):
    sys.stderr.write("Output directory already exists and is not a directory: %s\n"
        % options.dir)
    sys.exit(1)
  elif not os.path.exists(options.dir):
    os.makedirs(options.dir)

  # Run the tests
  for run in range(1, options.runs+1):
    PrintStatus("Run %d of %d: %s" % (run, options.runs,
        datetime.datetime.now().strftime("%A, %B %d %Y %I:%M %p")))

    # Reboot and wait for 30 seconds to let the system quiet down so the
    # log isn't polluted with all the boot completed crap.
    if True:
      adb.Reboot()
      PrintCommand(["sleep", "30"])
      time.sleep(30)

    # Monkeys can outrun the battery, so if it's getting low, pause to
    # let it charge.
    if True:
      targetBatteryLevel = 20
      while True:
        level = adb.GetBatteryLevel()
        if level > targetBatteryLevel:
          break
        print "Battery level is %d%%.  Pausing to let it charge above %d%%." % (
            level, targetBatteryLevel)
        time.sleep(60)

    filebase = os.path.sep.join((options.dir, pattern % run))
    bugreportFilename = filebase + "-bugreport.txt"
    monkeyFilename = filebase + "-monkey.txt"
    logcatFilename = filebase + "-logcat.txt"
    htmlFilename = filebase + ".html"

    monkeyFile = file(monkeyFilename, "w")
    logcatFile = file(logcatFilename, "w")
    bugreportFile = None

    # Clear the log, then start logcat
    adb.Shell(["logcat", "-c", "-b", "main,system,events,crash"])
    cmd = ["adb", "logcat", "-b", "main,system,events,crash"]
    PrintCommand(cmd)
    logcatProcess = subprocess.Popen(cmd, stdout=logcatFile, stderr=None)
    logcatThread = threading.Thread(target=LogcatThreadFunc)
    logcatThread.start()

    # Run monkeys
    cmd = [
        "monkey",
        "-c", "android.intent.category.LAUNCHER",
        "--ignore-security-exceptions",
        "--monitor-native-crashes",
        "-v", "-v", "-v"
      ]
    for pkg in options.packages:
      cmd.append("-p")
      cmd.append(pkg)
    if options.type == "anr":
      cmd.append("--ignore-crashes")
      cmd.append("--ignore-native-crashes")
    if options.type == "crash":
      cmd.append("--ignore-timeouts")
    if options.description:
      cmd.append("--match-description")
      cmd.append("'" + options.description + "'")
    cmd.append(str(options.events))
    try:
      adb.Shell(cmd, stdout=monkeyFile, stderr=monkeyFile)
      needReport = False
    except ExecutionException:
      # Monkeys failed, take a bugreport
      bugreportFile = file(bugreportFilename, "w")
      adb.Shell(["bugreport"], stdout=bugreportFile, stderr=None)
      needReport = True
    finally:
      monkeyFile.close()
      try:
        logcatProcess.terminate()
      except OSError:
        pass # it must have died on its own
      logcatThread.join()
      logcatFile.close()
      if bugreportFile:
        bugreportFile.close()
    
    if needReport:
      # Generate the html
      cmd = ["bugreport", "--monkey", monkeyFilename, "--html", htmlFilename,
          "--logcat", logcatFilename, bugreportFilename]
      PrintCommand(cmd)
      result = subprocess.call(cmd)


if __name__ == "__main__":
  main()

# vim: set ts=2 sw=2 sts=2 expandtab nocindent autoindent: