Dad Bot [BOT] for OWOP

OWOP.chat.send("/nick Dad Bot[BOT]");
OWOP.chat.recvModifier = function(msg) {
    if (chatType(msg) == "nickuser") {
        nick = msg.substr((msg.indexOf("]") + 2),(msg.indexOf(": ") - 7));
    } else {
        nick = "ID " + getChatId(msg);
    }
    m = getRealChat(msg);
    if (m.toLowerCase().split(' ')[0] == "im") {
        fm = m.toLowerCase();
        m = m.substr(fm.indexOf('im') + 3,m.length);
        fm = m.toLowerCase();
        if (fm == "dad") {
            OWOP.chat.send("No you're not, you're " + nick);
        } else {
            OWOP.chat.send("Hi " + m + ", I'm Dad");
        }
    }
    if (m.toLowerCase().split(' ')[0] == "i'm") {
        fm = m.toLowerCase();
        m = m.substr(fm.indexOf("i'm") + 4,m.length);
        fm = m.toLowerCase();
        if (fm == "dad") {
            OWOP.chat.send("No you're not, you're " + nick);
        } else {
            OWOP.chat.send("Hi " + m + ", I'm Dad");
        }
    }
    console.log(m);
    return msg;
}

function getRealChat(message) {
    var nickname = message.split(": ")[0] + ": ";
    var text = message.slice(nickname.length);
    var idIndex = text.indexOf(': ');
    var ntext = text.substr(0, idIndex);
    return ntext.replace(/\d+/g, '') + text.slice(idIndex + 1);
}

function chatType(text) {
    text = text.toString();
    if (text.startsWith("[D]")) {
        return "discord";
    } else if (text.startsWith("Server]") || text.startsWith("Server:") || text.startsWith("Nickname set to") || text.startsWith("User: ")) {
        return "server";
    } else if (text.startsWith("->")) {
        return "tell";
    } else if (text.startsWith("(M)")) {
        return "moderator";
    } else if (isNaN(text.split(": ")[0]) && text.split(": ")[0].charAt(0) != "[") {
        return "admin";
    } else if (text.split(": ")[0].charAt(0) == "[") {
        return "nickuser";
    } else {
        return "nonick";
    }
}

function getChatId(m) {
    if (chatType(m) == "nickuser") {
        return m.substr(1,m.indexOf("]") - 1);
    } else {
        if (chatType(m) == "nonick") {
            return m.substr(0,m.indexOf(": "));
        } else {
            return undefined;
        }
    }
}
// By Nurutomo #6541