#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright (C) 2014 Étienne Loks  <etienne.loks_AT_peacefrogsDOTnet>

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero General Public License for more details.

# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# See the file COPYING for details.

import sys

from django.db import models
from django.core.management.base import BaseCommand, CommandError
from django.core.exceptions import ValidationError

from archaeological_operations import models

class Command(BaseCommand):
    args = ''
    help = 'Clean duplicated act_types'

    def handle(self, *args, **options):
        duplicates_lst = []
        known = []
        for act_type in models.ActType.objects.order_by('label').all():
            if act_type.label in known:
                if duplicates_lst and \
                   duplicates_lst[-1][0].label == act_type.label:
                    duplicates_lst[-1].append(act_type)
            else:
                duplicates_lst.append([act_type])
                known.append(act_type.label)

        nb = 0
        for duplicates in duplicates_lst:
            ref = duplicates[0]
            for duplicate in duplicates[1:]:
                nb += 1
                models.AdministrativeAct.objects.filter(act_type=duplicate
                                       ).update(act_type=ref)
                duplicate.delete()
        print("* %d acttypes merged" % nb)