#!/usr/bin/env python
#
# A library that provides a Python interface to the Telegram Bot API
# Copyright (C) 2015-2022
# Leandro Toledo de Souza <devs@python-telegram-bot.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser 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 Lesser Public License for more details.
#
# You should have received a copy of the GNU Lesser Public License
# along with this program.  If not, see [http://www.gnu.org/licenses/].
import pytest

from telegram import MessageEntity, User


@pytest.fixture(scope="class", params=MessageEntity.ALL_TYPES)
def message_entity(request):
    type_ = request.param
    url = None
    if type_ == MessageEntity.TEXT_LINK:
        url = 't.me'
    user = None
    if type_ == MessageEntity.TEXT_MENTION:
        user = User(1, 'test_user', False)
    language = None
    if type_ == MessageEntity.PRE:
        language = "python"
    return MessageEntity(type_, 1, 3, url=url, user=user, language=language)


class TestMessageEntity:
    type_ = 'url'
    offset = 1
    length = 2
    url = 'url'

    def test_slot_behaviour(self, message_entity, mro_slots):
        inst = message_entity
        for attr in inst.__slots__:
            assert getattr(inst, attr, 'err') != 'err', f"got extra slot '{attr}'"
        assert len(mro_slots(inst)) == len(set(mro_slots(inst))), "duplicate slot"

    def test_de_json(self, bot):
        json_dict = {'type': self.type_, 'offset': self.offset, 'length': self.length}
        entity = MessageEntity.de_json(json_dict, bot)

        assert entity.type == self.type_
        assert entity.offset == self.offset
        assert entity.length == self.length

    def test_to_dict(self, message_entity):
        entity_dict = message_entity.to_dict()

        assert isinstance(entity_dict, dict)
        assert entity_dict['type'] == message_entity.type
        assert entity_dict['offset'] == message_entity.offset
        assert entity_dict['length'] == message_entity.length
        if message_entity.url:
            assert entity_dict['url'] == message_entity.url
        if message_entity.user:
            assert entity_dict['user'] == message_entity.user.to_dict()
        if message_entity.language:
            assert entity_dict['language'] == message_entity.language

    def test_equality(self):
        a = MessageEntity(MessageEntity.BOLD, 2, 3)
        b = MessageEntity(MessageEntity.BOLD, 2, 3)
        c = MessageEntity(MessageEntity.CODE, 2, 3)
        d = MessageEntity(MessageEntity.CODE, 5, 6)

        assert a == b
        assert hash(a) == hash(b)
        assert a is not b

        assert a != c
        assert hash(a) != hash(c)

        assert a != d
        assert hash(a) != hash(d)