# -*- coding: utf-8 -*-
# This file is part of the cashbook-module from m-ds for Tryton.
# The COPYRIGHT file at the top level of this repository contains the
# full copyright notices and license terms.

from trytond.transaction import Transaction
from trytond.pool import Pool, PoolMeta


class Category(metaclass=PoolMeta):
    __name__ = 'cashbook.category'

    @classmethod
    def create_from_qif(cls, qifdata):
        """ add categories from QIF-File-content
        """
        pool = Pool()
        QifTool = pool.get('cashbook_dataexchange.qiftool')
        Category2 = pool.get('cashbook.category')

        def get_create(ctype, catdict, parent, do_search):
            """ check if category exists, generate create-data
            """
            result = []
            for catname in catdict.keys():
                if do_search == True:
                    c_lst = Category2.search([
                            ('cattype', '=', ctype),
                            ('name', '=', catname),
                            ('parent', '=', None) if parent is None else ('parent.id', '=', parent.id),
                        ])
                else :
                    c_lst = []

                if len(c_lst) == 0:
                    cat1 = {
                        'cattype': ctype,
                        'name': catname,
                        }
                    if parent is not None:
                        cat1['parent'] = parent.id

                    if len(catdict[catname]['childs']) > 0:
                        childs = get_create(ctype, catdict[catname]['childs'], None, False)
                        if len(childs) > 0:
                            cat1['childs'] = [('create', childs)]
                    result.append(cat1)
                else :
                    if len(catdict[catname]['childs']) > 0:
                        result.extend(get_create(ctype, catdict[catname]['childs'], c_lst[0], True))
            return result

        type_data = QifTool.split_by_type(qifdata)
        if not 'Cat' in type_data.keys():
            return None

        cat_tree = QifTool.qif_read_categories(type_data['Cat'])
        to_create = []
        for typ1 in ['in', 'out']:
            to_create.extend(get_create(typ1, cat_tree[typ1], None, True))
        return Category2.create(to_create)

# end Category