# -*- coding: utf-8 -*-
# Copyright (C) 2014-2016 Andrey Antukh <niwi@niwi.nz>
# Copyright (C) 2014-2016 Jesús Espino <jespinog@gmail.com>
# Copyright (C) 2014-2016 David Barragán <bameda@dbarragan.com>
# Copyright (C) 2014-2016 Alejandro Alonso <alejandro.alonso@kaleidos.net>
# 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/>.

from taiga.base.api import serializers
from taiga.base.api import validators
from taiga.base.exceptions import ValidationError


class ResolverValidator(validators.Validator):
    project = serializers.CharField(max_length=512, required=True)
    milestone = serializers.CharField(max_length=512, required=False)
    epic = serializers.IntegerField(required=False)
    us = serializers.IntegerField(required=False)
    task = serializers.IntegerField(required=False)
    issue = serializers.IntegerField(required=False)
    ref = serializers.IntegerField(required=False)
    wikipage = serializers.CharField(max_length=512, required=False)

    def validate(self, attrs):
        if "ref" in attrs:
            if "epic" in attrs:
                raise ValidationError("'epic' param is incompatible with 'ref' in the same request")
            if "us" in attrs:
                raise ValidationError("'us' param is incompatible with 'ref' in the same request")
            if "task" in attrs:
                raise ValidationError("'task' param is incompatible with 'ref' in the same request")
            if "issue" in attrs:
                raise ValidationError("'issue' param is incompatible with 'ref' in the same request")

        return attrs
