#!/usr/bin/env python
# Copyright (c) 2012 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.

"""Get stats about your activity.

Example:
  - my_activity.py  for stats for the current week (last week on mondays).
  - my_activity.py -Q  for stats for last quarter.
  - my_activity.py -Y  for stats for this year.
  - my_activity.py -b 4/5/12  for stats since 4/5/12.
  - my_activity.py -b 4/5/12 -e 6/7/12 for stats between 4/5/12 and 6/7/12.
"""

# These services typically only provide a created time and a last modified time
# for each item for general queries. This is not enough to determine if there
# was activity in a given time period. So, we first query for all things created
# before end and modified after begin. Then, we get the details of each item and
# check those details to determine if there was activity in the given period.
# This means that query time scales mostly with (today() - begin).

import cookielib
import csv
import datetime
from datetime import datetime
from datetime import timedelta
from functools import partial
import json
import optparse
import os
import re
import subprocess
import sys
import urllib
import urllib2

import rietveld
from third_party import upload

# Imported later, once options are set.
webkitpy = None

try:
  from dateutil.relativedelta import relativedelta # pylint: disable=F0401
except ImportError:
  print 'python-dateutil package required'
  exit(1)

# python-keyring provides easy access to the system keyring.
try:
  import keyring  # pylint: disable=W0611,F0401
except ImportError:
  print 'Consider installing python-keyring'

def webkit_account(user):
  if not webkitpy:
    return None
  committer_list = webkitpy.common.config.committers.CommitterList()
  email = user + "@chromium.org"
  return committer_list.account_by_email(email)

def user_to_webkit_email(user):
  account = webkit_account(user)
  if not account:
    return None
  return account.emails[0]

def user_to_webkit_owner_search(user):
  account = webkit_account(user)
  if not account:
    return ['--author=%s@chromium.org' % user]
  search = []
  for email in account.emails:
    search.append('--author=' + email)
  # commit-bot is author for contributors who are not committers.
  search.append('--grep=Patch by ' + account.full_name)
  return search

def user_to_webkit_reviewer_search(user):
  committer_list = webkitpy.common.config.committers.CommitterList()
  email = user + "@chromium.org"
  account = committer_list.reviewer_by_email(email)
  if not account:
    return []
  return ['--grep=Reviewed by ' + account.full_name]

rietveld_instances = [
  {
    'url': 'codereview.chromium.org',
    'shorturl': 'crrev.com',
    'supports_owner_modified_query': True,
    'requires_auth': False,
    'email_domain': 'chromium.org',
  },
  {
    'url': 'chromereviews.googleplex.com',
    'shorturl': 'go/chromerev',
    'supports_owner_modified_query': True,
    'requires_auth': True,
    'email_domain': 'google.com',
  },
  {
    'url': 'codereview.appspot.com',
    'supports_owner_modified_query': True,
    'requires_auth': False,
    'email_domain': 'chromium.org',
  },
  {
    'url': 'breakpad.appspot.com',
    'supports_owner_modified_query': False,
    'requires_auth': False,
    'email_domain': 'chromium.org',
  },
]

gerrit_instances = [
  {
    'url': 'chromium-review.googlesource.com',
    'shorturl': 'crosreview.com',
  },
  # TODO(deymo): chrome-internal-review requires login credentials. Enable once
  # login support is added to this client. See crbug.com/281695.
  #{
  #  'url': 'chrome-internal-review.googlesource.com',
  #  'shorturl': 'crosreview.com/i',
  #},
  {
    'host': 'gerrit.chromium.org',
    'port': 29418,
  },
  {
    'host': 'gerrit-int.chromium.org',
    'port': 29419,
  },
]

google_code_projects = [
  {
    'name': 'chromium',
    'shorturl': 'crbug.com',
  },
  {
    'name': 'chromium-os',
    'shorturl': 'crosbug.com',
  },
  {
    'name': 'chrome-os-partner',
  },
  {
    'name': 'google-breakpad',
  },
  {
    'name': 'gyp',
  },
  {
    'name': 'skia',
  },
]

bugzilla_instances = [
  {
    'search_url': 'http://bugs.webkit.org/buglist.cgi',
    'url': 'wkb.ug',
    'user_func': user_to_webkit_email,
  },
]

git_instances = [
  {
    'option': 'webkit_repo',
    'change_re':
        r'git-svn-id: http://svn\.webkit\.org/repository/webkit/trunk@(\d*)',
    'change_url': 'trac.webkit.org/changeset',
    'review_re': r'https://bugs\.webkit\.org/show_bug\.cgi\?id\=(\d*)',
    'review_url': 'wkb.ug',
    'review_prop': 'webkit_bug_id',

    'owner_search_func': user_to_webkit_owner_search,
    'reviewer_search_func': user_to_webkit_reviewer_search,
  },
]

# Uses ClientLogin to authenticate the user for Google Code issue trackers.
def get_auth_token(email):
  # KeyringCreds will use the system keyring on the first try, and prompt for
  # a password on the next ones.
  creds = upload.KeyringCreds('code.google.com', 'code.google.com', email)
  for _ in xrange(3):
    email, password = creds.GetUserCredentials()
    url = 'https://www.google.com/accounts/ClientLogin'
    data = urllib.urlencode({
        'Email': email,
        'Passwd': password,
        'service': 'code',
        'source': 'chrome-my-activity',
        'accountType': 'GOOGLE',
    })
    req = urllib2.Request(url, data=data, headers={'Accept': 'text/plain'})
    try:
      response = urllib2.urlopen(req)
      response_body = response.read()
      response_dict = dict(x.split('=')
                           for x in response_body.split('\n') if x)
      return response_dict['Auth']
    except urllib2.HTTPError, e:
      print e

  print 'Unable to authenticate to code.google.com.'
  print 'Some issues may be missing.'
  return None


def username(email):
  """Keeps the username of an email address."""
  return email and email.split('@', 1)[0]


def datetime_to_midnight(date):
  return date - timedelta(hours=date.hour, minutes=date.minute,
                          seconds=date.second, microseconds=date.microsecond)


def get_quarter_of(date):
  begin = (datetime_to_midnight(date) -
           relativedelta(months=(date.month % 3) - 1, days=(date.day - 1)))
  return begin, begin + relativedelta(months=3)


def get_year_of(date):
  begin = (datetime_to_midnight(date) -
           relativedelta(months=(date.month - 1), days=(date.day - 1)))
  return begin, begin + relativedelta(years=1)


def get_week_of(date):
  begin = (datetime_to_midnight(date) - timedelta(days=date.weekday()))
  return begin, begin + timedelta(days=7)


def get_yes_or_no(msg):
  while True:
    response = raw_input(msg + ' yes/no [no] ')
    if response == 'y' or response == 'yes':
      return True
    elif not response or response == 'n' or response == 'no':
      return False


def datetime_from_gerrit(date_string):
  return datetime.strptime(date_string, '%Y-%m-%d %H:%M:%S.%f000')


def datetime_from_rietveld(date_string):
  return datetime.strptime(date_string, '%Y-%m-%d %H:%M:%S.%f')


def datetime_from_google_code(date_string):
  return datetime.strptime(date_string, '%Y-%m-%dT%H:%M:%S.%fZ')


class MyActivity(object):
  def __init__(self, options):
    self.options = options
    self.modified_after = options.begin
    self.modified_before = options.end
    self.user = options.user
    self.changes = []
    self.reviews = []
    self.issues = []
    self.check_cookies()
    self.google_code_auth_token = None
    self.webkit_repo = options.webkit_repo
    if self.webkit_repo:
      self.setup_webkit_info()

  # Check the codereview cookie jar to determine which Rietveld instances to
  # authenticate to.
  def check_cookies(self):
    cookie_file = os.path.expanduser('~/.codereview_upload_cookies')
    cookie_jar = cookielib.MozillaCookieJar(cookie_file)
    if not os.path.exists(cookie_file):
      exit(1)

    try:
      cookie_jar.load()
      print 'Found cookie file: %s' % cookie_file
    except (cookielib.LoadError, IOError):
      exit(1)

    filtered_instances = []

    def has_cookie(instance):
      for cookie in cookie_jar:
        if cookie.name == 'SACSID' and cookie.domain == instance['url']:
          return True
      if self.options.auth:
        return get_yes_or_no('No cookie found for %s. Authorize for this '
                             'instance? (may require application-specific '
                             'password)' % instance['url'])
      filtered_instances.append(instance)
      return False

    for instance in rietveld_instances:
      instance['auth'] = has_cookie(instance)

    if filtered_instances:
      print ('No cookie found for the following Rietveld instance%s:' %
             ('s' if len(filtered_instances) > 1 else ''))
      for instance in filtered_instances:
        print '\t' + instance['url']
      print 'Use --auth if you would like to authenticate to them.\n'

  def rietveld_search(self, instance, owner=None, reviewer=None):
    if instance['requires_auth'] and not instance['auth']:
      return []


    email = None if instance['auth'] else ''
    remote = rietveld.Rietveld('https://' + instance['url'], email, None)

    # See def search() in rietveld.py to see all the filters you can use.
    query_modified_after = None

    if instance['supports_owner_modified_query']:
      query_modified_after = self.modified_after.strftime('%Y-%m-%d')

    # Rietveld does not allow search by both created_before and modified_after.
    # (And some instances don't allow search by both owner and modified_after)
    owner_email = None
    reviewer_email = None
    if owner:
      owner_email = owner + '@' + instance['email_domain']
    if reviewer:
      reviewer_email = reviewer + '@' + instance['email_domain']
    issues = remote.search(
        owner=owner_email,
        reviewer=reviewer_email,
        modified_after=query_modified_after,
        with_messages=True)

    issues = filter(
        lambda i: (datetime_from_rietveld(i['created']) < self.modified_before),
        issues)
    issues = filter(
        lambda i: (datetime_from_rietveld(i['modified']) > self.modified_after),
        issues)

    should_filter_by_user = True
    issues = map(partial(self.process_rietveld_issue, instance), issues)
    issues = filter(
        partial(self.filter_issue, should_filter_by_user=should_filter_by_user),
        issues)
    issues = sorted(issues, key=lambda i: i['modified'], reverse=True)

    return issues

  def process_rietveld_issue(self, instance, issue):
    ret = {}
    ret['owner'] = issue['owner_email']
    ret['author'] = ret['owner']

    ret['reviewers'] = set(issue['reviewers'])

    shorturl = instance['url']
    if 'shorturl' in instance:
      shorturl = instance['shorturl']

    ret['review_url'] = 'http://%s/%d' % (shorturl, issue['issue'])

    # Rietveld sometimes has '\r\n' instead of '\n'.
    ret['header'] = issue['description'].replace('\r', '').split('\n')[0]

    ret['modified'] = datetime_from_rietveld(issue['modified'])
    ret['created'] = datetime_from_rietveld(issue['created'])
    ret['replies'] = self.process_rietveld_replies(issue['messages'])

    return ret

  @staticmethod
  def process_rietveld_replies(replies):
    ret = []
    for reply in replies:
      r = {}
      r['author'] = reply['sender']
      r['created'] = datetime_from_rietveld(reply['date'])
      r['content'] = ''
      ret.append(r)
    return ret

  @staticmethod
  def gerrit_changes_over_ssh(instance, filters):
    # See https://review.openstack.org/Documentation/cmd-query.html
    # Gerrit doesn't allow filtering by created time, only modified time.
    gquery_cmd = ['ssh', '-p', str(instance['port']), instance['host'],
                  'gerrit', 'query',
                  '--format', 'JSON',
                  '--comments',
                  '--'] + filters
    (stdout, _) = subprocess.Popen(gquery_cmd, stdout=subprocess.PIPE,
                                   stderr=subprocess.PIPE).communicate()
    # Drop the last line of the output with the stats.
    issues = stdout.splitlines()[:-1]
    return map(json.loads, issues)

  @staticmethod
  def gerrit_changes_over_rest(instance, filters):
    # See https://gerrit-review.googlesource.com/Documentation/rest-api.html
    # Gerrit doesn't allow filtering by created time, only modified time.
    args = urllib.urlencode([
        ('q', ' '.join(filters)),
        ('o', 'MESSAGES'),
        ('o', 'LABELS')])
    rest_url = 'https://%s/changes/?%s' % (instance['url'], args)

    req = urllib2.Request(rest_url, headers={'Accept': 'text/plain'})
    try:
      response = urllib2.urlopen(req)
      stdout = response.read()
    except urllib2.HTTPError, e:
      print 'ERROR: Looking up %r: %s' % (rest_url, e)
      return []

    # Check that the returned JSON starts with the right marker.
    if stdout[:5] != ")]}'\n":
      print 'ERROR: Marker not found on REST API response: %r' % stdout[:5]
      return []
    return json.loads(stdout[5:])

  def gerrit_search(self, instance, owner=None, reviewer=None):
    max_age = datetime.today() - self.modified_after
    max_age = max_age.days * 24 * 3600 + max_age.seconds
    user_filter = 'owner:%s' % owner if owner else 'reviewer:%s' % reviewer
    filters = ['-age:%ss' % max_age, user_filter]

    # Determine the gerrit interface to use: SSH or REST API:
    if 'host' in instance:
      issues = self.gerrit_changes_over_ssh(instance, filters)
      issues = [self.process_gerrit_ssh_issue(instance, issue)
                for issue in issues]
    elif 'url' in instance:
      issues = self.gerrit_changes_over_rest(instance, filters)
      issues = [self.process_gerrit_rest_issue(instance, issue)
                for issue in issues]
    else:
      raise Exception('Invalid gerrit_instances configuration.')

    # TODO(cjhopman): should we filter abandoned changes?
    issues = filter(self.filter_issue, issues)
    issues = sorted(issues, key=lambda i: i['modified'], reverse=True)

    return issues

  def process_gerrit_ssh_issue(self, instance, issue):
    ret = {}
    ret['review_url'] = issue['url']
    if 'shorturl' in instance:
      ret['review_url'] = 'http://%s/%s' % (instance['shorturl'],
                                            issue['number'])
    ret['header'] = issue['subject']
    ret['owner'] = issue['owner']['email']
    ret['author'] = ret['owner']
    ret['created'] = datetime.fromtimestamp(issue['createdOn'])
    ret['modified'] = datetime.fromtimestamp(issue['lastUpdated'])
    if 'comments' in issue:
      ret['replies'] = self.process_gerrit_ssh_issue_replies(issue['comments'])
    else:
      ret['replies'] = []
    ret['reviewers'] = set(r['author'] for r in ret['replies'])
    ret['reviewers'].discard(ret['author'])
    return ret

  @staticmethod
  def process_gerrit_ssh_issue_replies(replies):
    ret = []
    replies = filter(lambda r: 'email' in r['reviewer'], replies)
    for reply in replies:
      ret.append({
        'author': reply['reviewer']['email'],
        'created': datetime.fromtimestamp(reply['timestamp']),
        'content': '',
      })
    return ret

  def process_gerrit_rest_issue(self, instance, issue):
    ret = {}
    ret['review_url'] = 'https://%s/%s' % (instance['url'], issue['_number'])
    if 'shorturl' in instance:
      # TODO(deymo): Move this short link to https once crosreview.com supports
      # it.
      ret['review_url'] = 'http://%s/%s' % (instance['shorturl'],
                                            issue['_number'])
    ret['header'] = issue['subject']
    ret['owner'] = issue['owner']['email']
    ret['author'] = ret['owner']
    ret['created'] = datetime_from_gerrit(issue['created'])
    ret['modified'] = datetime_from_gerrit(issue['updated'])
    if 'messages' in issue:
      ret['replies'] = self.process_gerrit_rest_issue_replies(issue['messages'])
    else:
      ret['replies'] = []
    ret['reviewers'] = set(r['author'] for r in ret['replies'])
    ret['reviewers'].discard(ret['author'])
    return ret

  @staticmethod
  def process_gerrit_rest_issue_replies(replies):
    ret = []
    replies = filter(lambda r: 'email' in r['author'], replies)
    for reply in replies:
      ret.append({
        'author': reply['author']['email'],
        'created': datetime_from_gerrit(reply['date']),
        'content': reply['message'],
      })
    return ret

  def google_code_issue_search(self, instance):
    time_format = '%Y-%m-%dT%T'
    # See http://code.google.com/p/support/wiki/IssueTrackerAPI
    # q=<owner>@chromium.org does a full text search for <owner>@chromium.org.
    # This will accept the issue if owner is the owner or in the cc list. Might
    # have some false positives, though.

    # Don't filter normally on modified_before because it can filter out things
    # that were modified in the time period and then modified again after it.
    gcode_url = ('https://code.google.com/feeds/issues/p/%s/issues/full' %
                 instance['name'])

    gcode_data = urllib.urlencode({
        'alt': 'json',
        'max-results': '100000',
        'q': '%s' % self.user,
        'published-max': self.modified_before.strftime(time_format),
        'updated-min': self.modified_after.strftime(time_format),
    })

    opener = urllib2.build_opener()
    if self.google_code_auth_token:
      opener.addheaders = [('Authorization', 'GoogleLogin auth=%s' %
                            self.google_code_auth_token)]
    gcode_json = None
    try:
      gcode_get = opener.open(gcode_url + '?' + gcode_data)
      gcode_json = json.load(gcode_get)
      gcode_get.close()
    except urllib2.HTTPError, _:
      print 'Unable to access ' + instance['name'] + ' issue tracker.'

    if not gcode_json or 'entry' not in gcode_json['feed']:
      return []

    issues = gcode_json['feed']['entry']
    issues = map(partial(self.process_google_code_issue, instance), issues)
    issues = filter(self.filter_issue, issues)
    issues = sorted(issues, key=lambda i: i['modified'], reverse=True)
    return issues

  def process_google_code_issue(self, project, issue):
    ret = {}
    ret['created'] = datetime_from_google_code(issue['published']['$t'])
    ret['modified'] = datetime_from_google_code(issue['updated']['$t'])

    ret['owner'] = ''
    if 'issues$owner' in issue:
      ret['owner'] = issue['issues$owner']['issues$username']['$t']
    ret['author'] = issue['author'][0]['name']['$t']

    if 'shorturl' in project:
      issue_id = issue['id']['$t']
      issue_id = issue_id[issue_id.rfind('/') + 1:]
      ret['url'] = 'http://%s/%d' % (project['shorturl'], int(issue_id))
    else:
      issue_url = issue['link'][1]
      if issue_url['rel'] != 'alternate':
        raise RuntimeError
      ret['url'] = issue_url['href']
    ret['header'] = issue['title']['$t']

    ret['replies'] = self.get_google_code_issue_replies(issue)
    return ret

  def get_google_code_issue_replies(self, issue):
    """Get all the comments on the issue."""
    replies_url = issue['link'][0]
    if replies_url['rel'] != 'replies':
      raise RuntimeError

    replies_data = urllib.urlencode({
        'alt': 'json',
        'fields': 'entry(published,author,content)',
    })

    opener = urllib2.build_opener()
    opener.addheaders = [('Authorization', 'GoogleLogin auth=%s' %
                          self.google_code_auth_token)]
    try:
      replies_get = opener.open(replies_url['href'] + '?' + replies_data)
    except urllib2.HTTPError, _:
      return []

    replies_json = json.load(replies_get)
    replies_get.close()
    return self.process_google_code_issue_replies(replies_json)

  @staticmethod
  def process_google_code_issue_replies(replies):
    if 'entry' not in replies['feed']:
      return []

    ret = []
    for entry in replies['feed']['entry']:
      e = {}
      e['created'] = datetime_from_google_code(entry['published']['$t'])
      e['content'] = entry['content']['$t']
      e['author'] = entry['author'][0]['name']['$t']
      ret.append(e)
    return ret

  @staticmethod
  def git_cmd(repo, *args):
    cmd = ['git', '--git-dir=%s/.git' % repo]
    cmd.extend(args)
    [stdout, _] = subprocess.Popen(cmd, stdout=subprocess.PIPE,
                                   stderr=subprocess.PIPE).communicate()
    lines = str(stdout).split('\n')[:-1]
    return lines

  def git_search(self, instance, owner=None, reviewer=None):
    repo = getattr(self, instance['option'])
    if not repo:
      return []

    search = []
    if owner:
      search.extend(instance['owner_search_func'](owner))
    if reviewer:
      search.extend(instance['reviewer_search_func'](reviewer))
    if not len(search):
      return []

    self.git_cmd(repo, 'fetch', 'origin')

    time_format = '%Y-%m-%d %H:%M:%S'
    log_args = [
      '--after=' + self.modified_after.strftime(time_format),
      '--before=' + self.modified_before.strftime(time_format),
      '--format=%H'
    ]
    commits = set()
    for query in search:
      query_args = [query]
      query_args.extend(log_args)
      commits |= set(self.git_cmd(repo, 'log', 'origin/master', *query_args))

    ret = []
    for commit in commits:
      output = self.git_cmd(repo, 'log', commit + "^!", "--format=%cn%n%cd%n%B")
      author = output[0]
      date = datetime.strptime(output[1], "%a %b %d %H:%M:%S %Y +0000")
      processed = self.process_git_commit(instance, author, date, output[2:])
      if processed:
        ret.append(processed)

    ret = sorted(ret, key=lambda i: i['modified'], reverse=True)
    return ret

  @staticmethod
  def process_git_commit(instance, author, date, log):
    ret = {}
    ret['owner'] = author
    ret['author'] = author
    ret['modified'] = date
    ret['created'] = date
    ret['header'] = log[0]

    reviews = []
    reviewers = []
    changes = []

    for line in log:
      match = re.match(r'Reviewed by ([^.]*)', line)
      if match:
        reviewers.append(match.group(1))
      if instance['review_re']:
        match = re.match(instance['review_re'], line)
        if match:
          reviews.append(int(match.group(1)))
      if instance['change_re']:
        match = re.match(instance['change_re'], line)
        if match:
          changes.append(int(match.group(1)))

    committer_list = webkitpy.common.config.committers.CommitterList()
    ret['reviewers'] = set(
        (committer_list.contributor_by_name(r).emails[0] for r in reviewers))

    # Reviews more useful than change link itself, but tricky if multiple
    # Reviews == bugs for WebKit changes
    if len(reviews) == 1:
      url = 'http://%s/%d' % (instance['review_url'], reviews[0])
      if instance['review_prop']:
        ret[instance['review_prop']] = reviews[0]
    elif len(changes) == 1:
      url = 'http://%s/%d' % (instance['change_url'], changes[0])
    else:
      # Couldn't find anything.
      return None
    ret['review_url'] = url

    return ret

  def bugzilla_issues(self, instance, user):
    if instance['user_func']:
      user = instance['user_func'](user)
    if not user:
      return []

    # This search is a little iffy, as it returns any bug that has been
    # modified over a time period in any way and that a user has ever commented
    # on, but that's the best that Bugzilla can get us.  Oops.
    commented = { 'emaillongdesc1': 1 }
    issues = self.bugzilla_search(instance, user, commented)
    issues = filter(lambda issue: issue['owner'] != user, issues)

    reported = { 'emailreporter1': 1, 'chfield': '[Bug creation]' }
    issues.extend(self.bugzilla_search(instance, user, reported))

    # Remove duplicates by bug id
    seen = {}
    pruned = []
    for issue in issues:
      bug_id = issue['webkit_bug_id']
      if bug_id in seen:
        continue
      seen[bug_id] = True
      pruned.append(issue)

    # Bugzilla has no modified time, so sort by id?
    pruned = sorted(pruned, key=lambda i: i['webkit_bug_id'])
    return issues

  def bugzilla_search(self, instance, user, params):
    time_format = '%Y-%m-%d'
    values = {
      'chfieldfrom': self.modified_after.strftime(time_format),
      'chfieldto': self.modified_before.strftime(time_format),
      'ctype': 'csv',
      'emailtype1': 'substring',
      'email1': '%s' % user,
    }
    values.update(params)

    # Must be GET not POST
    data = urllib.urlencode(values)
    req = urllib2.Request("%s?%s" % (instance['search_url'], data))
    response = urllib2.urlopen(req)
    reader = csv.reader(response)
    reader.next() # skip the header line

    issues = map(partial(self.process_bugzilla_issue, instance), reader)
    return issues

  @staticmethod
  def process_bugzilla_issue(instance, issue):
    bug_id, owner, desc = int(issue[0]), issue[4], issue[7]

    ret = {}
    ret['owner'] = owner
    ret['author'] = owner
    ret['review_url'] = 'http://%s/%d' % (instance['url'], bug_id)
    ret['url'] = ret['review_url']
    ret['header'] = desc
    ret['webkit_bug_id'] = bug_id
    return ret

  def setup_webkit_info(self):
    assert(self.webkit_repo)
    git_dir = os.path.normpath(self.webkit_repo + "/.git")
    if not os.path.exists(git_dir):
      print "%s doesn't exist, skipping WebKit checks." % git_dir
      self.webkit_repo = None
      return

    try:
      self.git_cmd(self.webkit_repo, "fetch", "origin")
    except subprocess.CalledProcessError:
      print "Failed to update WebKit repo, skipping WebKit checks."
      self.webkit_repo = None
      return

    path = "Tools/Scripts"
    full_path = os.path.normpath("%s/%s" % (self.options.webkit_repo, path))
    sys.path.append(full_path)

    try:
      global webkitpy
      webkitpy = __import__('webkitpy.common.config.committers')
    except ImportError:
      print "Failed to import WebKit committer list, skipping WebKit checks."
      self.webkit_repo = None
      return

    if not webkit_account(self.user):
      email = self.user + "@chromium.org"
      print "No %s in committers.py, skipping WebKit checks." % email
      self.webkit_repo = None

  def print_change(self, change):
    optional_values = {
        'reviewers': ', '.join(change['reviewers'])
    }
    self.print_generic(self.options.output_format,
                       self.options.output_format_changes,
                       change['header'],
                       change['review_url'],
                       change['author'],
                       optional_values)

  def print_issue(self, issue):
    optional_values = {
        'owner': issue['owner'],
    }
    self.print_generic(self.options.output_format,
                       self.options.output_format_issues,
                       issue['header'],
                       issue['url'],
                       issue['author'],
                       optional_values)

  def print_review(self, review):
    self.print_generic(self.options.output_format,
                       self.options.output_format_reviews,
                       review['header'],
                       review['review_url'],
                       review['author'])

  @staticmethod
  def print_generic(default_fmt, specific_fmt,
                    title, url, author,
                    optional_values=None):
    output_format = specific_fmt if specific_fmt is not None else default_fmt
    output_format = unicode(output_format)
    required_values = {
        'title': title,
        'url': url,
        'author': author,
    }
    # Merge required and optional values.
    if optional_values is not None:
      values = dict(required_values.items() + optional_values.items())
    else:
      values = required_values
    print output_format.format(**values)


  def filter_issue(self, issue, should_filter_by_user=True):
    def maybe_filter_username(email):
      return not should_filter_by_user or username(email) == self.user
    if (maybe_filter_username(issue['author']) and
        self.filter_modified(issue['created'])):
      return True
    if (maybe_filter_username(issue['owner']) and
        (self.filter_modified(issue['created']) or
         self.filter_modified(issue['modified']))):
      return True
    for reply in issue['replies']:
      if self.filter_modified(reply['created']):
        if not should_filter_by_user:
          break
        if (username(reply['author']) == self.user
            or (self.user + '@') in reply['content']):
          break
    else:
      return False
    return True

  def filter_modified(self, modified):
    return self.modified_after < modified and modified < self.modified_before

  def auth_for_changes(self):
    #TODO(cjhopman): Move authentication check for getting changes here.
    pass

  def auth_for_reviews(self):
    # Reviews use all the same instances as changes so no authentication is
    # required.
    pass

  def auth_for_issues(self):
    self.google_code_auth_token = (
        get_auth_token(self.options.local_user + '@chromium.org'))

  def get_changes(self):
    for instance in rietveld_instances:
      self.changes += self.rietveld_search(instance, owner=self.user)

    for instance in gerrit_instances:
      self.changes += self.gerrit_search(instance, owner=self.user)

    for instance in git_instances:
      self.changes += self.git_search(instance, owner=self.user)

  def print_changes(self):
    if self.changes:
      print '\nChanges:'
      for change in self.changes:
        self.print_change(change)

  def get_reviews(self):
    for instance in rietveld_instances:
      self.reviews += self.rietveld_search(instance, reviewer=self.user)

    for instance in gerrit_instances:
      reviews = self.gerrit_search(instance, reviewer=self.user)
      reviews = filter(lambda r: not username(r['owner']) == self.user, reviews)
      self.reviews += reviews

    for instance in git_instances:
      self.reviews += self.git_search(instance, reviewer=self.user)

  def print_reviews(self):
    if self.reviews:
      print '\nReviews:'
      for review in self.reviews:
        self.print_review(review)

  def get_issues(self):
    for project in google_code_projects:
      self.issues += self.google_code_issue_search(project)

    for instance in bugzilla_instances:
      self.issues += self.bugzilla_issues(instance, self.user)

  def print_issues(self):
    if self.issues:
      print '\nIssues:'
      for issue in self.issues:
        self.print_issue(issue)

  def process_activities(self):
    # If a webkit bug was a review, don't list it as an issue.
    ids = {}
    for review in self.reviews + self.changes:
      if 'webkit_bug_id' in review:
        ids[review['webkit_bug_id']] = True

    def duplicate_issue(issue):
      if 'webkit_bug_id' not in issue:
        return False
      return issue['webkit_bug_id'] in ids

    self.issues = filter(lambda issue: not duplicate_issue(issue), self.issues)

  def print_activity(self):
    self.print_changes()
    self.print_reviews()
    self.print_issues()


def main():
  # Silence upload.py.
  rietveld.upload.verbosity = 0

  parser = optparse.OptionParser(description=sys.modules[__name__].__doc__)
  parser.add_option(
      '-u', '--user', metavar='<email>',
      default=os.environ.get('USER'),
      help='Filter on user, default=%default')
  parser.add_option(
      '--webkit_repo', metavar='<dir>',
      default='%s' % os.environ.get('WEBKIT_DIR'),
      help='Local path to WebKit repository, default=%default')
  parser.add_option(
      '-b', '--begin', metavar='<date>',
      help='Filter issues created after the date')
  parser.add_option(
      '-e', '--end', metavar='<date>',
      help='Filter issues created before the date')
  quarter_begin, quarter_end = get_quarter_of(datetime.today() -
                                              relativedelta(months=2))
  parser.add_option(
      '-Q', '--last_quarter', action='store_true',
      help='Use last quarter\'s dates, e.g. %s to %s' % (
        quarter_begin.strftime('%Y-%m-%d'), quarter_end.strftime('%Y-%m-%d')))
  parser.add_option(
      '-Y', '--this_year', action='store_true',
      help='Use this year\'s dates')
  parser.add_option(
      '-w', '--week_of', metavar='<date>',
      help='Show issues for week of the date')
  parser.add_option(
      '-a', '--auth',
      action='store_true',
      help='Ask to authenticate for instances with no auth cookie')

  activity_types_group = optparse.OptionGroup(parser, 'Activity Types',
                               'By default, all activity will be looked up and '
                               'printed. If any of these are specified, only '
                               'those specified will be searched.')
  activity_types_group.add_option(
      '-c', '--changes',
      action='store_true',
      help='Show changes.')
  activity_types_group.add_option(
      '-i', '--issues',
      action='store_true',
      help='Show issues.')
  activity_types_group.add_option(
      '-r', '--reviews',
      action='store_true',
      help='Show reviews.')
  parser.add_option_group(activity_types_group)

  output_format_group = optparse.OptionGroup(parser, 'Output Format',
                              'By default, all activity will be printed in the '
                              'following format: {url} {title}. This can be '
                              'changed for either all activity types or '
                              'individually for each activity type. The format '
                              'is defined as documented for '
                              'string.format(...). The variables available for '
                              'all activity types are url, title and author. '
                              'Format options for specific activity types will '
                              'override the generic format.')
  output_format_group.add_option(
      '-f', '--output-format', metavar='<format>',
      default=u'{url} {title}',
      help='Specifies the format to use when printing all your activity.')
  output_format_group.add_option(
      '--output-format-changes', metavar='<format>',
      default=None,
      help='Specifies the format to use when printing changes. Supports the '
      'additional variable {reviewers}')
  output_format_group.add_option(
      '--output-format-issues', metavar='<format>',
      default=None,
      help='Specifies the format to use when printing issues. Supports the '
           'additional variable {owner}.')
  output_format_group.add_option(
      '--output-format-reviews', metavar='<format>',
      default=None,
      help='Specifies the format to use when printing reviews.')
  parser.add_option_group(output_format_group)

  # Remove description formatting
  parser.format_description = (
      lambda _: parser.description)  # pylint: disable=E1101

  options, args = parser.parse_args()
  options.local_user = os.environ.get('USER')
  if args:
    parser.error('Args unsupported')
  if not options.user:
    parser.error('USER is not set, please use -u')

  options.user = username(options.user)

  if not options.begin:
    if options.last_quarter:
      begin, end = quarter_begin, quarter_end
    elif options.this_year:
      begin, end = get_year_of(datetime.today())
    elif options.week_of:
      begin, end = (get_week_of(datetime.strptime(options.week_of, '%m/%d/%y')))
    else:
      begin, end = (get_week_of(datetime.today() - timedelta(days=1)))
  else:
    begin = datetime.strptime(options.begin, '%m/%d/%y')
    if options.end:
      end = datetime.strptime(options.end, '%m/%d/%y')
    else:
      end = datetime.today()
  options.begin, options.end = begin, end

  print 'Searching for activity by %s' % options.user
  print 'Using range %s to %s' % (options.begin, options.end)

  my_activity = MyActivity(options)

  if not (options.changes or options.reviews or options.issues):
    options.changes = True
    options.issues = True
    options.reviews = True

  # First do any required authentication so none of the user interaction has to
  # wait for actual work.
  if options.changes:
    my_activity.auth_for_changes()
  if options.reviews:
    my_activity.auth_for_reviews()
  if options.issues:
    my_activity.auth_for_issues()

  print 'Looking up activity.....'

  if options.changes:
    my_activity.get_changes()
  if options.reviews:
    my_activity.get_reviews()
  if options.issues:
    my_activity.get_issues()

  my_activity.process_activities()

  print '\n\n\n'

  my_activity.print_changes()
  my_activity.print_reviews()
  my_activity.print_issues()
  return 0


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