# ===============================================================================
# Copyright (C) 2010 Diego Duclos
#
# This file is part of eos.
#
# eos is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# eos 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with eos.  If not, see <http://www.gnu.org/licenses/>.
# ===============================================================================

from sqlalchemy import Column, String, Integer, Boolean, ForeignKey, Table
from sqlalchemy.orm import relation, mapper, synonym, deferred

from eos.db import gamedata_meta
from eos.gamedata import Item, MarketGroup
import eos.config

marketgroups_table = Table("invmarketgroups", gamedata_meta,
                           Column("marketGroupID", Integer, primary_key=True),
                           *[Column("marketGroupName{}".format(lang), String) for lang in eos.config.translation_mapping.values()],
                           *[Column("marketGroupDescription{}".format(lang), String) for lang in eos.config.translation_mapping.values()],
                           Column("hasTypes", Boolean),
                           Column("parentGroupID", Integer,
                                ForeignKey("invmarketgroups.marketGroupID", initially="DEFERRED", deferrable=True)),
                           Column("iconID", Integer))

props = {
    "items": relation(Item, backref="marketGroup"),
    "parent": relation(MarketGroup, backref="children", remote_side=[marketgroups_table.c.marketGroupID]),
    "ID": synonym("marketGroupID"),
    "name": synonym("marketGroupName{}".format(eos.config.lang)),
    "description": synonym("_description{}".format(eos.config.lang)),
}

# Create deferred columns shadowing all the description fields. The literal `description` property will dynamically
# be assigned as synonym to one of these
# this is mostly here to allow the db_update to be language-agnostic
# todo: determine if we ever use market group descriptions... can we just get with of these?
props.update({'_description' + v: deferred(marketgroups_table.c['marketGroupDescription' + v]) for (k, v) in eos.config.translation_mapping.items()})

mapper(
    MarketGroup,
    marketgroups_table,
    properties=props
)