def welcome(bot: Bot, update: Update, args: List[str]):
    chat = update.effective_chat  # type: Optional[Chat]
    # if no args, show current replies.
    if len(args) == 0 or args[0].lower() == "noformat":
        noformat = args and args[0].lower() == "noformat"
        pref, welcome_m, welcome_type = sql.get_welc_pref(chat.id)
        update.effective_message.reply_text(
            "This chat has it's welcome setting set to: `{}`.\n*The welcome message "
            "(not filling the {{}}) is:*".format(pref),
            parse_mode=ParseMode.MARKDOWN)

        if welcome_type == sql.Types.BUTTON_TEXT:
            buttons = sql.get_welc_buttons(chat.id)
            if noformat:
                welcome_m += revert_buttons(buttons)
                update.effective_message.reply_text(welcome_m)

            else:
                keyb = build_keyboard(buttons)
                keyboard = InlineKeyboardMarkup(keyb)

                send(update, welcome_m, keyboard, sql.DEFAULT_WELCOME)

        else:
            if noformat:
                ENUM_FUNC_MAP[welcome_type](chat.id, welcome_m)

            else:
                ENUM_FUNC_MAP[welcome_type](chat.id,
                                            welcome_m,
                                            parse_mode=ParseMode.MARKDOWN)

    elif len(args) >= 1:
        if args[0].lower() in ("on", "yes"):
            sql.set_welc_preference(str(chat.id), True)
            update.effective_message.reply_text("I'll be polite!")

        elif args[0].lower() in ("off", "no"):
            sql.set_welc_preference(str(chat.id), False)
            update.effective_message.reply_text(
                "I'm sulking, not saying hello anymore.")

        else:
            # idek what you're writing, say yes or no
            update.effective_message.reply_text(
                "I understand 'on/yes' or 'off/no' only!")
def new_member(bot: Bot, update: Update):
    chat = update.effective_chat  # type: Optional[Chat]
    user = update.effective_user  # type: Optional[User]
    msg = update.effective_message  # type: Optional[Message]
    chat_name = chat.title or chat.first or chat.username  # type: Optional:[chat name]
    should_welc, cust_welcome, welc_type = sql.get_welc_pref(chat.id)
    welc_mutes = sql.welcome_mutes(chat.id)
    casPrefs = sql.get_cas_status(str(chat.id))  #check if enabled, obviously
    autoban = sql.get_cas_autoban(str(chat.id))
    chatbanned = sql.isBanned(str(chat.id))
    defense = sql.getDefenseStatus(str(chat.id))
    time_value = sql.getKickTime(str(chat.id))
    fed_id = feds_sql.get_fed_id(chat.id)
    fed_info = feds_sql.get_fed_info(fed_id)
    fban, fbanreason, fbantime = feds_sql.get_fban_user(fed_id, user.id)
    if chatbanned:
        bot.leave_chat(int(chat.id))
    elif fban:
        update.effective_message.reply_text(
            "🔨 User {} is banned in the current Federation ({}), and so has been Removed.\n<b>Reason</b>: {}"
            .format(mention_html(user.id, user.first_name), fed_info['fname'],
                    fbanreason or "No reason given"),
            parse_mode=ParseMode.HTML)
        bot.kick_chat_member(chat.id, user.id)
    elif casPrefs and not autoban and cas.banchecker(user.id):
        bot.restrict_chat_member(chat.id,
                                 user.id,
                                 can_send_messages=False,
                                 can_send_media_messages=False,
                                 can_send_other_messages=False,
                                 can_add_web_page_previews=False)
        msg.reply_text(
            "Warning! This user is CAS Banned. I have muted them to avoid spam. Ban is advised."
        )
        isUserGbanned = gbansql.is_user_gbanned(user.id)
        if not isUserGbanned:
            report = "CAS Banned user detected: <code>{}</code>".format(
                user.id)
            send_to_list(bot, SUDO_USERS + SUPPORT_USERS, report, html=True)
        if defense:
            bantime = int(time.time()) + 60
            chat.kick_member(new_mem.id, until_date=bantime)
    elif casPrefs and autoban and cas.banchecker(user.id):
        chat.kick_member(user.id)
        msg.reply_text(
            "CAS banned user detected! User has been automatically banned!")
        isUserGbanned = gbansql.is_user_gbanned(user.id)
        if not isUserGbanned:
            report = "CAS Banned user detected: <code>{}</code>".format(
                user.id)
            send_to_list(bot, SUDO_USERS + SUPPORT_USERS, report, html=True)
    elif defense and (user.id not in SUDO_USERS + SUPPORT_USERS):
        bantime = int(time.time()) + 60
        chat.kick_member(user.id, until_date=bantime)
    elif should_welc:
        sent = None
        new_members = update.effective_message.new_chat_members
        for new_mem in new_members:
            # Give the owner a special welcome
            if new_mem.id == OWNER_ID:
                update.effective_message.reply_text(
                    "🕹️ Hey 🕹️ a Developer has joined our group")
                continue

            # Welcome Devs
            elif new_mem.id in DEV_USERS:
                update.effective_message.reply_text(
                    "Whoa! A member of the Heroes Association just joined!")

            # Welcome Sudos
            elif new_mem.id in SUDO_USERS:
                update.effective_message.reply_text(
                    "Huh! A Sudo User just joined! Stay Alert!")

            # Welcome Support
            elif new_mem.id in SUPPORT_USERS:
                update.effective_message.reply_text(
                    "Huh! Someone with a Support User just joined!")

            # Welcome Whitelisted
            elif new_mem.id in WHITELIST_USERS:
                update.effective_message.reply_text(
                    "Oof! A Whitelist User just joined!")

            elif new_mem.id == 1118936839:
                update.effective_message.reply_text(
                    "Oh🤴Genos,My Creator/Developer has just joined your group."
                )

            # Make bot greet admins
            elif new_mem.id == bot.id:
                update.effective_message.reply_text(
                    "Hey {}, I'm Palak Sidhwani! Thank you for adding me to {}"
                    " and be sure to check /help in PM for more commands and tricks!"
                    .format(user.first_name, bot.first_name, chat_name))
                bot.send_message(
                    MESSAGE_DUMP,
                    "I have been added to {} with \nID: <pre>{}</pre>".format(
                        chat.title, chat.id),
                    parse_mode=ParseMode.HTML)
            else:
                # If welcome message is media, send with appropriate function
                if welc_type != sql.Types.TEXT and welc_type != sql.Types.BUTTON_TEXT:
                    ENUM_FUNC_MAP[welc_type](chat.id, cust_welcome)
                    return
                # else, move on
                first_name = new_mem.first_name or "PersonWithNoName"  # edge case of empty name - occurs for some bugs.

                if cust_welcome:
                    if new_mem.last_name:
                        fullname = "{} {}".format(first_name,
                                                  new_mem.last_name)
                    else:
                        fullname = first_name
                    count = chat.get_members_count()
                    mention = mention_markdown(new_mem.id, first_name)
                    if new_mem.username:
                        username = "******" + escape_markdown(new_mem.username)
                    else:
                        username = mention

                    valid_format = escape_invalid_curly_brackets(
                        cust_welcome, VALID_WELCOME_FORMATTERS)
                    res = valid_format.format(
                        first=escape_markdown(first_name),
                        last=escape_markdown(new_mem.last_name or first_name),
                        fullname=escape_markdown(fullname),
                        username=username,
                        mention=mention,
                        count=count,
                        chatname=escape_markdown(chat.title),
                        id=new_mem.id)
                    buttons = sql.get_welc_buttons(chat.id)
                    keyb = build_keyboard(buttons)
                else:
                    res = sql.DEFAULT_WELCOME.format(first=first_name,
                                                     chatname=chat.title)
                    keyb = []

                keyboard = InlineKeyboardMarkup(keyb)

                sent = send(
                    update, res, keyboard,
                    sql.DEFAULT_WELCOME.format(
                        first=first_name,
                        chatname=chat.title))  # type: Optional[Message]

                #Sudo user exception from mutes:
                if is_user_ban_protected(chat, new_mem.id,
                                         chat.get_member(new_mem.id)):
                    continue

                #Safe mode
                newMember = chat.get_member(int(new_mem.id))
                if welc_mutes == "on" and ((newMember.can_send_messages is None
                                            or newMember.can_send_messages)):
                    buttonMsg = msg.reply_text(
                        "Click the button below to prove you're human",
                        reply_markup=InlineKeyboardMarkup([[
                            InlineKeyboardButton(
                                text="I'm not a bot! 🤖",
                                callback_data="userverify_({})".format(
                                    new_mem.id))
                        ]]))
                    bot.restrict_chat_member(chat.id,
                                             new_mem.id,
                                             can_send_messages=False,
                                             can_send_media_messages=False,
                                             can_send_other_messages=False,
                                             can_add_web_page_previews=False)

            delete_join(bot, update)

        prev_welc = sql.get_clean_pref(chat.id)
        if prev_welc:
            try:
                bot.delete_message(chat.id, prev_welc)
            except BadRequest as excp:
                pass

            if sent:
                sql.set_clean_welcome(chat.id, sent.message_id)
def __chat_settings__(chat_id, user_id):
    welcome_pref, _, _ = sql.get_welc_pref(chat_id)
    goodbye_pref, _, _ = sql.get_gdbye_pref(chat_id)
    return "This chat has it's welcome preference set to `{}`.\n" \
           "It's goodbye preference is `{}`.".format(welcome_pref, goodbye_pref)