#!/usr/bin/env python

import unittest
from unittest.mock import Mock
import autobanbot

CHAT_ID = "Chat ID"
USER_ID = "User ID"
MESSAGE_ID = "Message ID"
BOT_SPEC = ["kick_chat_member", "delete_message"]

class Member:
    def __init__(self, user_id, first_name, last_name, username):
        self.id = user_id
        self.first_name = first_name
        self.last_name = last_name
        self.username = username

class Message:
    def __init__(self, user_id, first_name, last_name, username):
        self.new_chat_members = [Member(user_id, first_name, last_name, username)]
        self.message_id = MESSAGE_ID

class Chat:
    def __init__(self):
        self.id = CHAT_ID

class Update:
    def __init__(self, user_id, first_name, last_name, username):
        self.message = Message(user_id, first_name, last_name, username)
        self.effective_chat = Chat()

class TestAutoBanBot(unittest.TestCase):
    def setUp(self):
        self.regexes = autobanbot.load_config()["regexes"]

    def banned_join(self, user_id, first_name, last_name, username):
        bot = Mock(spec=BOT_SPEC)
        self.assertTrue(autobanbot.hello(
            bot, Update(user_id, first_name, last_name, username), self.regexes
        ))
        bot.kick_chat_member.assert_called_once_with(CHAT_ID, USER_ID)
        bot.delete_message.assert_called_once_with(CHAT_ID, MESSAGE_ID)

    def legit_join(self, user_id, first_name, last_name, username):
        bot = Mock(spec=BOT_SPEC)
        self.assertFalse(autobanbot.hello(
            bot, Update(user_id, first_name, last_name, username), self.regexes
        ))
        bot.kick_chat_member.assert_not_called()
        bot.delete_message.assert_not_called()

    def test_spam_joins(self):
        updates = [
            "READY-MADE TELEGRAM ACCOUNTS",
            "ready-made TeLeGrAm AcCoUnTs",
            "there are ready-made TeLeGrAm AcCoUnTs for sale!",
            "253239090 hi hello 473157472"
        ]
        for update in updates:
            with self.subTest(first_name=update):
                self.banned_join(USER_ID, update, "", "")
            with self.subTest(last_name=update):
                self.banned_join(USER_ID, "", update, "")
            with self.subTest(last_name=update, first_name=None):
                self.banned_join(USER_ID, None, update, "")
            with self.subTest(last_name=None, first_name=update):
                self.banned_join(USER_ID, update, None, "")
            with self.subTest(last_name=update, first_name=update):
                self.banned_join(USER_ID, update, update, "")

    def test_non_spam_joins(self):
        updates = [
            "telegram account",
            "abc",
            "ready-made telegram naccounts",
            "completely legit name",
            ""
        ]
        for update in updates:
            with self.subTest(first_name=update):
                self.legit_join(USER_ID, update, "", "")
            with self.subTest(last_name=update):
                self.legit_join(USER_ID, "", update, "")
            with self.subTest(first_name=update, last_name=None):
                self.legit_join(USER_ID, update, None, "")
            with self.subTest(last_name=update, first_name=None):
                self.legit_join(USER_ID, None, update, "")
            with self.subTest(last_name=update, first_name=update):
                self.legit_join(USER_ID, update, update, "")

if __name__ == '__main__':
    unittest.main()