# -*- coding: utf-8 -*-

"""

    rhodecode.lib.celerylib.__init__

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    celery libs for RhodeCode

    :created_on: Nov 27, 2010

    :author: marcink

    :copyright: (C) 2010-2012 Marcin Kuzminski <marcin@python-works.com>

    :license: GPLv3, see COPYING for more details.

"""

# This program is free software: you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see <http://www.gnu.org/licenses/>.

import os

import sys

import socket

import traceback

import logging

from os.path import dirname as dn, join as jn

from pylons import config

from hashlib import md5

from decorator import decorator

from rhodecode.lib.vcs.utils.lazy import LazyProperty

from rhodecode import CELERY_ON, CELERY_EAGER

from rhodecode.lib.utils2 import str2bool, safe_str

from rhodecode.lib.pidlock import DaemonLock, LockHeld

from rhodecode.model import init_model

from rhodecode.model import meta

from rhodecode.model.db import Statistics, Repository, User

from sqlalchemy import engine_from_config

from celery.messaging import establish_connection

log = logging.getLogger(__name__)

class ResultWrapper(object):

    def __init__(self, task):

        self.task = task

    @LazyProperty

    def result(self):

        return self.task

def run_task(task, *args, **kwargs):

    if CELERY_ON:

        try:

            t = task.apply_async(args=args, kwargs=kwargs)

            log.info('running task %s:%s' % (t.task_id, task))

            return t

        except socket.error, e:

            if isinstance(e, IOError) and e.errno == 111:

                log.debug('Unable to connect to celeryd. Sync execution')

            else:

                log.error(traceback.format_exc())

        except KeyError, e:

                log.debug('Unable to connect to celeryd. Sync execution')

        except Exception, e:

            log.error(traceback.format_exc())

    log.debug('executing task %s in sync mode' % task)

    return ResultWrapper(task(*args, **kwargs))

def __get_lockkey(func, *fargs, **fkwargs):

    params = list(fargs)

    params.extend(['%s-%s' % ar for ar in fkwargs.items()])

    func_name = str(func.__name__) if hasattr(func, '__name__') else str(func)

    lockkey = 'task_%s.lock' % \

        md5(func_name + '-' + '-'.join(map(safe_str, params))).hexdigest()

    return lockkey

def locked_task(func):

    def __wrapper(func, *fargs, **fkwargs):

        lockkey = __get_lockkey(func, *fargs, **fkwargs)

        log.info('running task with lockkey %s' % lockkey)

        try:

            l = DaemonLock(file_=jn(lockkey_path, lockkey))

            ret = func(*fargs, **fkwargs)

            l.release()

            return ret

        except LockHeld:

            log.info('LockHeld')

            return 'Task with key %s already running' % lockkey

    return decorator(__wrapper, func)

def get_session():

    if CELERY_ON:

        engine = engine_from_config(config, 'sqlalchemy.db1.')

        init_model(engine)

    sa = meta.Session()

    return sa

def dbsession(func):

    def __wrapper(func, *fargs, **fkwargs):

        try:

            ret = func(*fargs, **fkwargs)

            return ret

        finally:

            if CELERY_ON and CELERY_EAGER is False:

                meta.Session.remove()

    return decorator(__wrapper, func)

# -*- coding: utf-8 -*-

"""

    rhodecode.lib.celerylib.tasks

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    RhodeCode task modules, containing all task that suppose to be run

    by celery daemon

    :created_on: Oct 6, 2010

    :author: marcink

    :copyright: (C) 2010-2012 Marcin Kuzminski <marcin@python-works.com>

    :license: GPLv3, see COPYING for more details.

"""

# This program is free software: you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see <http://www.gnu.org/licenses/>.

from celery.decorators import task

import os

import traceback

import logging

from os.path import join as jn

from time import mktime

from operator import itemgetter

from string import lower

from pylons import config, url

from pylons.i18n.translation import _

from rhodecode.lib.vcs import get_backend

from rhodecode import CELERY_ON, CELERY_EAGER

from rhodecode.lib.utils2 import safe_str

from rhodecode.lib.celerylib import run_task, locked_task, dbsession, \

    str2bool, __get_lockkey, LockHeld, DaemonLock, get_session

from rhodecode.lib.helpers import person

from rhodecode.lib.rcmail.smtp_mailer import SmtpMailer

from rhodecode.lib.utils import add_cache, action_logger

from rhodecode.lib.compat import json, OrderedDict

from rhodecode.lib.hooks import log_create_repository

from rhodecode.model.db import Statistics, Repository, User

from rhodecode.model.scm import ScmModel

add_cache(config)

__all__ = ['whoosh_index', 'get_commits_stats',

           'reset_user_password', 'send_email']

def get_logger(cls):

    if CELERY_ON:

        try:

            log = cls.get_logger()

        except:

            log = logging.getLogger(__name__)

    else:

        log = logging.getLogger(__name__)

    return log

@task(ignore_result=True)

@locked_task

@dbsession

def whoosh_index(repo_location, full_index):

    from rhodecode.lib.indexers.daemon import WhooshIndexingDaemon

    log = get_logger(whoosh_index)

    DBS = get_session()

    index_location = config['index_dir']

    WhooshIndexingDaemon(index_location=index_location,

                         repo_location=repo_location, sa=DBS)\

                         .run(full_index=full_index)

@task(ignore_result=True)

@dbsession

def get_commits_stats(repo_name, ts_min_y, ts_max_y):

    log = get_logger(get_commits_stats)

    DBS = get_session()

    lockkey = __get_lockkey('get_commits_stats', repo_name, ts_min_y,

                            ts_max_y)

    log.info('running task with lockkey %s' % lockkey)

    try:

        lock = l = DaemonLock(file_=jn(lockkey_path, lockkey))

        # for js data compatibility cleans the key for person from '

        akc = lambda k: person(k).replace('"', "")

        co_day_auth_aggr = {}

        commits_by_day_aggregate = {}

        repo = Repository.get_by_repo_name(repo_name)

        if repo is None:

            return True

        repo = repo.scm_instance

        repo_size = repo.count()

        # return if repo have no revisions

        if repo_size < 1:

            lock.release()

            return True

        skip_date_limit = True

        parse_limit = int(config['app_conf'].get('commit_parse_limit'))

        last_rev = None

        last_cs = None

        timegetter = itemgetter('time')

        dbrepo = DBS.query(Repository)\

            .filter(Repository.repo_name == repo_name).scalar()

        cur_stats = DBS.query(Statistics)\

            .filter(Statistics.repository == dbrepo).scalar()

        if cur_stats is not None:

            last_rev = cur_stats.stat_on_revision

        if last_rev == repo.get_changeset().revision and repo_size > 1:

            # pass silently without any work if we're not on first revision or

            # current state of parsing revision(from db marker) is the

            # last revision

            lock.release()

            return True

        if cur_stats:

            commits_by_day_aggregate = OrderedDict(json.loads(

                                        cur_stats.commit_activity_combined))

            co_day_auth_aggr = json.loads(cur_stats.commit_activity)

        log.debug('starting parsing %s' % parse_limit)

        lmktime = mktime

        last_rev = last_rev + 1 if last_rev >= 0 else 0

        log.debug('Getting revisions from %s to %s' % (

             last_rev, last_rev + parse_limit)

        )

        for cs in repo[last_rev:last_rev + parse_limit]:

            log.debug('parsing %s' % cs)

            last_cs = cs  # remember last parsed changeset

            k = lmktime([cs.date.timetuple()[0], cs.date.timetuple()[1],

                          cs.date.timetuple()[2], 0, 0, 0, 0, 0, 0])

            if akc(cs.author) in co_day_auth_aggr:

                try:

                    l = [timegetter(x) for x in

                         co_day_auth_aggr[akc(cs.author)]['data']]

                    time_pos = l.index(k)

                except ValueError:

                    time_pos = False

                if time_pos >= 0 and time_pos is not False:

                    datadict = \

                        co_day_auth_aggr[akc(cs.author)]['data'][time_pos]

                    datadict["commits"] += 1

                    datadict["added"] += len(cs.added)

                    datadict["changed"] += len(cs.changed)

                    datadict["removed"] += len(cs.removed)

                else:

                    if k >= ts_min_y and k <= ts_max_y or skip_date_limit:

                        datadict = {"time": k,

                                    "commits": 1,

                                    "added": len(cs.added),

                                    "changed": len(cs.changed),

                                    "removed": len(cs.removed),

                                   }

                        co_day_auth_aggr[akc(cs.author)]['data']\

                            .append(datadict)

            else:

                if k >= ts_min_y and k <= ts_max_y or skip_date_limit:

                    co_day_auth_aggr[akc(cs.author)] = {

                                        "label": akc(cs.author),

                                        "data": [{"time":k,