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

# 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/>.

"""

kallithea.lib.paster_commands.common

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

Common code for gearbox commands.

This file was forked by the Kallithea project in July 2014.

Original author and date, and relevant copyright and licensing information is below:

:created_on: Apr 18, 2010

:author: marcink

:copyright: (c) 2013 RhodeCode GmbH, and others.

:license: GPLv3, see LICENSE.md for more details.

"""

import os

import sys

import logging.config

import paste.deploy

import gearbox.command

from tg import config

import kallithea.config.middleware

import kallithea.model.base

import kallithea.lib.utils2

import kallithea.lib.utils

def ask_ok(prompt, retries=4, complaint='Yes or no please!'):

    while True:

        ok = raw_input(prompt)

        if ok in ('y', 'ye', 'yes'):

            return True

        if ok in ('n', 'no', 'nop', 'nope'):

            return False

        retries = retries - 1

        if retries < 0:

            raise IOError

        print complaint

class BasePasterCommand(gearbox.command.Command):

    """

    Abstract Base Class for gearbox commands.

    """

    # override to control how much get_parser and run should do:

    takes_config_file = True

    requires_db_session = True

    def run(self, args):

        """

        Overrides Command.run

        If needed by the command, read config file and initialize database before running.

        """

        if self.takes_config_file:

            path_to_ini_file = os.path.realpath(args.config_file)

            conf = paste.deploy.appconfig('config:' + path_to_ini_file)

            logging.config.fileConfig(path_to_ini_file)

            if self.requires_db_session:

                kallithea.lib.utils.setup_cache_regions(config)

                engine = kallithea.lib.utils2.engine_from_config(config, 'sqlalchemy.')

                kallithea.model.base.init_model(engine)

        return super(BasePasterCommand, self).run(args)

    def get_parser(self, prog_name):

        parser = super(BasePasterCommand, self).get_parser(prog_name)

        if self.takes_config_file:

            parser.add_argument("-c", "--config",

                help='Kallithea .ini file with configuration of database etc',

                dest='config_file', required=True)

        return parser

    def error(self, msg, exitcode=1):

        """Write error message and exit"""

        sys.stderr.write('%s\n' % msg)

        raise SystemExit(exitcode)