import logging

from sqlalchemy import *

from kallithea.lib.dbmigrate.migrate import *
from kallithea.lib.dbmigrate.migrate.changeset import *
from kallithea.lib.utils2 import str2bool

from kallithea.model import meta
from kallithea.lib.dbmigrate.versions import _reset_base, notify

log = logging.getLogger(__name__)


def upgrade(migrate_engine):
    """
    Upgrade operations go here.
    Don't create your own engine; bind migrate_engine to your metadata
    """
    _reset_base(migrate_engine)
    from kallithea.lib.dbmigrate.schema import db_2_0_0

    # issue fixups
    fixups(db_2_0_0, meta.Session)


def downgrade(migrate_engine):
    meta = MetaData()
    meta.bind = migrate_engine


def fixups(models, _SESSION):
    notify('Fixing default auth modules')
    plugins = 'kallithea.lib.auth_modules.auth_internal'
    opts = []
    ldap_enabled = str2bool(getattr(
        models.Setting.get_by_name('ldap_active'),
        'app_settings_value', False))
    if ldap_enabled:
        plugins += ',kallithea.lib.auth_modules.auth_ldap'
        opts.append(('auth_ldap_enabled', 'True', 'bool'))

    opts.append(('auth_plugins', plugins, 'list'),)
    opts.append(('auth_internal_enabled', 'True', 'bool'))

    for name, default, type_ in opts:
        setting = models.Setting.get_by_name(name)
        if not setting:
            # if we don't have this option create it
            setting = models.Setting(name, default, type_)

        _SESSION().add(setting)
        _SESSION().commit()

    #copy over the LDAP settings
    old_ldap = [('ldap_active', 'false', 'bool'), ('ldap_host', '', 'unicode'),
                ('ldap_port', '389', 'int'), ('ldap_tls_kind', 'PLAIN', 'unicode'),
                ('ldap_tls_reqcert', '', 'unicode'), ('ldap_dn_user', '', 'unicode'),
                ('ldap_dn_pass', '', 'unicode'), ('ldap_base_dn', '', 'unicode'),
                ('ldap_filter', '', 'unicode'), ('ldap_search_scope', '', 'unicode'),
                ('ldap_attr_login', '', 'unicode'), ('ldap_attr_firstname', '', 'unicode'),
                ('ldap_attr_lastname', '', 'unicode'), ('ldap_attr_email', '', 'unicode')]
    for k, v, t in old_ldap:
        old_setting = models.Setting.get_by_name(k)
        name = 'auth_%s' % k
        setting = models.Setting.get_by_name(name)
        if setting is None:
            # if we don't have this option create it
            if old_setting is not None:
                v = old_setting.app_settings_value
            setting = models.Setting(name, v, t)

        _SESSION().add(setting)
        _SESSION().commit()
