"""Fill annotator

Created by:
EOLE (http://eole.orion.education.fr)
Copyright (C) 2005-2018

Forked by:
Cadoles (http://www.cadoles.com)
Copyright (C) 2019-2021

distribued with GPL-2 or later license

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
"""
from rougail.utils import load_modules
from rougail.i18n import _
from rougail.error import DictConsistencyError

from rougail.annotator.target import TargetAnnotator
from rougail.annotator.param import ParamAnnotator


CALC_MULTI = ('calc_value', 'calc_list', 'get_range', 'calc_val_first_value', 'unbound_filename', 'zone_information')


class Annotator(TargetAnnotator, ParamAnnotator):
    """Fill annotator
    """
    level = 60
    def __init__(self,
                 objectspace,
                 eosfunc_file,
                 *args,
                 ):
        if not hasattr(objectspace.space, 'constraints') or \
                not hasattr(objectspace.space.constraints, 'fill'):
            return
        self.objectspace = objectspace
        self.functions = dir(load_modules(eosfunc_file))
        self.functions.extend(self.objectspace.rougailconfig['internal_functions'])
        self.target_is_uniq = True
        self.only_variable = True
        self.allow_function = False
        self.convert_target(self.objectspace.space.constraints.fill)
        self.convert_param(self.objectspace.space.constraints.fill)
        self.fill_to_value()
        del self.objectspace.space.constraints.fill

    def calc_is_multi(self, variable: 'self.objectspace.variable') -> bool:
        multi = variable.multi
        if multi is False:
            return multi
        if multi == 'submulti':
            return True
        return not self.objectspace.paths.is_follower(variable.path)

    def fill_to_value(self) -> None:
        """valid and manage <fill>
        """
        for fill in self.objectspace.space.constraints.fill:
            # test if the function exists
            if fill.name not in self.functions:
                msg = _(f'cannot find fill function "{fill.name}"')
                raise DictConsistencyError(msg, 25, fill.xmlfiles)
            for target in fill.target:
                # create an object value
                value = self.objectspace.value(fill.xmlfiles)
                value.type = 'calculation'
                value.name = fill.name
                if fill.name not in CALC_MULTI:
                    is_calc_multi = self.calc_is_multi(target.name)
                else:
                    is_calc_multi = False
                value.calc_multi = is_calc_multi
                if target.name.namespace == 'services':
                    target.name.default = value
                else:
                    target.name.value = [value]
                # manage params
                if hasattr(fill, 'param') and fill.param:
                    value.param = fill.param