# 

# 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, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

# MA  02110-1301, USA.

import os

import sys

import socket

import traceback

import logging

from hashlib import md5

from decorator import decorator

from vcs.utils.lazy import LazyProperty

from rhodecode.lib import str2bool

from rhodecode.lib.pidlock import DaemonLock, LockHeld

from pylons import  config

log = logging.getLogger(__name__)

try:

    CELERY_ON = str2bool(config['app_conf'].get('use_celery'))

except KeyError:

    CELERY_ON = False

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:

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

            return t

        except socket.error, e:

            if  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 locked_task(func):

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

        params = list(fargs)

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

        lockkey = 'task_%s' % \

            md5(str(func.__name__) + '-' + \

                '-'.join(map(str, params))).hexdigest()