"""Param 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
"""
try:
    import tiramisu3 as tiramisu
except ModuleNotFoundError:
    import tiramisu

from rougail.annotator.variable import CONVERT_OPTION

from rougail.i18n import _
from rougail.error import DictConsistencyError


class ParamAnnotator:
    """Param annotator
    """
    objectspace = None

    @staticmethod
    def valid_type_validation(obj) -> None:
        """Function to valid type (redefine in fill/condition/check classes)
        """
        return None

    def convert_param(self, objects) -> None:
        """ valid and convert param
        """
        for obj in objects:
            if not hasattr(obj, 'param'):
                continue
            param_to_delete = []
            variable_type = self.valid_type_validation(obj)
            for param_idx, param in enumerate(obj.param):
                if hasattr(param, 'text'):
                    if param.type in ['suffix', 'index']:
                        msg = _(f'"{param.type}" parameter must not have a value')
                        raise DictConsistencyError(msg, 28, obj.xmlfiles)
                    if param.type in ['nil', 'space']:
                        if param.text is not None:
                            msg = _(f'"{param.type}" parameter must not have a value')
                            raise DictConsistencyError(msg, 40, obj.xmlfiles)
                    elif param.type == 'variable':
                        try:
                            path, suffix = self.objectspace.paths.get_variable_path(param.text,
                                                                                    obj.namespace,
                                                                                    param.xmlfiles,
                                                                                    )
                            param.text = self.objectspace.paths.get_variable(path)
                            if variable_type and param.text.type != variable_type:
                                msg = _(f'"{obj.name}" has type "{variable_type}" but param '
                                        f'has type "{param.text.type}"')
                                raise DictConsistencyError(msg, 26, param.xmlfiles)
                            if suffix:
                                param.suffix = suffix
                                family_path = self.objectspace.paths.get_variable_family_path(path)
                                namespace = param.text.namespace
                                param.family = self.objectspace.paths.get_family(family_path,
                                                                                 namespace,
                                                                                 )
                        except DictConsistencyError as err:
                            if err.errno != 42 or not param.optional:
                                raise err
                            param_to_delete.append(param_idx)
                    elif param.type == 'function':
                        if not self.allow_function:
                            msg = _(f'cannot use "function" type')
                            raise DictConsistencyError(msg, 74, param.xmlfiles)
                        if not param.text in self.functions:
                            msg = _(f'cannot find function "{param.text}"')
                            raise DictConsistencyError(msg, 67, param.xmlfiles)
                        if param_idx != 0:
                            msg = _(f'function "{param.text}" must only set has first parameter')
                            raise DictConsistencyError(msg, 75, param.xmlfiles)
                    elif variable_type:
                        self._convert_with_variable_type(variable_type, param)
                    continue
                # no param.text
                if param.type == 'suffix':
                    for target in obj.target:
                        if not self.objectspace.paths.variable_is_dynamic(target.name.path):
                            target_name = target.name
                            if isinstance(target_name, self.objectspace.variable):
                                target_name = target_name.name
                            msg = _(f'"{param.type}" parameter cannot be set with target '
                                    f'"{target_name}" which is not a dynamic variable')
                            raise DictConsistencyError(msg, 53, obj.xmlfiles)
                elif param.type == 'index':
                    for target in obj.target:
                        if not self.objectspace.paths.is_follower(target.name.path):
                            msg = _(f'"{param.type}" parameter cannot be set with target '
                                    f'"{target.name.name}" which is not a follower variable')
                            raise DictConsistencyError(msg, 60, obj.xmlfiles)
                elif param.type == 'nil':
                    param.text = None
                elif param.type == 'space':
                    param.type = 'string'
                    param.text = ' '
                elif param.type == 'string':
                    param.text = ''
                    if variable_type:
                        self._convert_with_variable_type(variable_type, param)
                else:
                    msg = _(f'"{param.type}" parameter must have a value')
                    raise DictConsistencyError(msg, 27, obj.xmlfiles)
            param_to_delete.sort(reverse=True)
            for param_idx in param_to_delete:
                obj.param.pop(param_idx)

    @staticmethod
    def _convert_with_variable_type(variable_type: str,
                                    param: 'self.objectspace.param',
                                    ) -> None:
        if 'type' in vars(param) and variable_type != param.type:
            msg = _(f'parameter has incompatible type "{param.type}" '
                    f'with type "{variable_type}"')
            raise DictConsistencyError(msg, 7, param.xmlfiles)
        if variable_type != 'choice':
            try:
                option = CONVERT_OPTION[variable_type]
                param.text = option.get('func', str)(param.text)
                getattr(tiramisu, option['opttype'])('test',
                                                     'Object to valid value',
                                                     param.text,
                                                     **option.get('initkwargs', {}),
                                                     )
            except ValueError as err:
                msg = _(f'unable to change type of value "{param.text}" '
                        f'is not a valid "{variable_type}"')
                raise DictConsistencyError(msg, 13, param.xmlfiles) from err
        param.type = variable_type