# 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/>.

"""

Global configuration file for TurboGears2 specific settings in Kallithea.

This file complements the .ini file.

"""

import platform

import os, sys, logging

import tg

from tg import hooks

from tg.configuration import AppConfig

from tg.support.converters import asbool

import alembic.config

from alembic.script.base import ScriptDirectory

from alembic.migration import MigrationContext

from sqlalchemy import create_engine

import mercurial

from kallithea.lib.middleware.permanent_repo_url import PermanentRepoUrl

from kallithea.lib.middleware.https_fixup import HttpsFixup

from kallithea.lib.middleware.simplegit import SimpleGit

from kallithea.lib.middleware.simplehg import SimpleHg

from kallithea.lib.auth import set_available_permissions

from kallithea.lib.utils import load_rcextensions, make_ui, set_app_settings, set_vcs_config, \

    set_indexer_config, check_git_version, repo2db_mapper

from kallithea.lib.utils2 import str2bool

import kallithea.model.base

from kallithea.model.scm import ScmModel

import formencode

log = logging.getLogger(__name__)

class KallitheaAppConfig(AppConfig):

    # Note: AppConfig has a misleading name, as it's not the application

    # configuration, but the application configurator. The AppConfig values are

    # used as a template to create the actual configuration, which might

    # overwrite or extend the one provided by the configurator template.

    # To make it clear, AppConfig creates the config and sets into it the same

    # values that AppConfig itself has. Then the values from the config file and

base_config = KallitheaAppConfig()

# TODO still needed as long as we use pylonslib

sys.modules['pylons'] = tg

# DebugBar, a debug toolbar for TurboGears2.

# (https://github.com/TurboGears/tgext.debugbar)

# To enable it, install 'tgext.debugbar' and 'kajiki', and run Kallithea with

# 'debug = true' (not in production!)

# See the Kallithea documentation for more information.

try:

    from tgext.debugbar import enable_debugbar

    import kajiki # only to check its existence

except ImportError:

    pass

else:

    base_config['renderers'].append('kajiki')

    enable_debugbar(base_config)

def setup_configuration(app):

    config = app.config

        log.error("Terminating ...")

        sys.exit(1)

    # Mercurial sets encoding at module import time, so we have to monkey patch it

    hgencoding = config.get('hgencoding')

    if hgencoding:

        mercurial.encoding.encoding = hgencoding

    if config.get('ignore_alembic_revision', False):

        log.warn('database alembic revision checking is disabled')

    else:

        dbconf = config['sqlalchemy.url']

        alembic_cfg = alembic.config.Config()

        alembic_cfg.set_main_option('script_location', 'kallithea:alembic')

        alembic_cfg.set_main_option('sqlalchemy.url', dbconf)

        script_dir = ScriptDirectory.from_config(alembic_cfg)

        available_heads = sorted(script_dir.get_heads())

        engine = create_engine(dbconf)

        with engine.connect() as conn:

            context = MigrationContext.configure(conn)

            current_heads = sorted(str(s) for s in context.get_current_heads())

        if current_heads != available_heads:

            log.error('Failed to run Kallithea:\n\n'