def validate_incoming_data(message)
    auth_chat = @conf['auth_chat']
    message = message.message if message.is_a? Telegram::Bot::Types::CallbackQuery
    return "Received message is not from a valid source! Type: \"#{message.chat.type}\". Ignoring." if ! @allowed_sources.include?(message.chat.type)
    #return "Unauthorized user sent message. User ID: #{message.from.id} Source ID: #{message.chat.id}." if ! auth_chat.include?(message.chat.id.to_s)
    #puts message.chat.type
    return true
end

def message_from_admin?(message, adm)
    #return @admin_userids.include? message.from.id.to_s
    #puts adm.class
    #puts message.from.id
    #puts adm
    if adm.include?(message.from.id)
        puts "Command is from an admin. [" + "#{message.from.username}".green.bold + "]"
        return true
    else
        puts "Command is NOT from an admin! [" + "#{message.from.username}".yellow.bold + "]"
        return false
    end
end

def is_chat_authorized?(message, auth_chat)
    if auth_chat.include?(message.chat.id)
        puts "Group [" + "#{message.chat.id}".green.bold + "][" + "#{message.chat.title}".green + "] is authorized"
        return true
    else
        puts "Group [" + "#{message.chat.id}".red.bold + "][" + "#{message.chat.title}".red + "] is NOT authorized!"
        return false
    end
end

#def send_gif(chat, cmd)
#    bot.api.sendVideo(chat_id: chat, video: "#{@gif_url_prefix}#{cmd}.gif")
#end

def process_command_start(message, command, adm)
    reply = "Introduction: I am #{@botname}, and I am here to make life easier for meatbag admins like you. Currently I can retrieve information " +
            "from an Empyrion server as well as kill the server process. I also have some pretty sweet dance moves.\n\n" +
            "Commands available:\n/start or /help (Shows this message)\n/voice or /chat (Shows voice chat info)\n/srvstart (Currently non-functional)\n/srvstop\n/status\n/whoami or /chatinfo\n/whereareyou or /location\n\n" +
            "Check again later to see if any new functions have been added, or use /patchnotes to learn about recent updates.\n" +
            "You can also view the source code at the following location:\nhttps://git.skyfall.tech/skyfall/empyrion-bot"
    if message_from_admin?(message, adm)
        msg_from_admin = true
    end
    if is_chat_authorized?(message, @auth_chat)
        chat_authorized = true
    end
    if ! msg_from_admin && ! chat_authorized
        if message.from.id == message.chat.id
            reply = reply + "\n\nWARNING: I am not authorized to work with you directly. My functionality is limited."
        else
            reply = reply + "\n\nWARNING: I am not authorized to participate with this group. My functionality is limited."
        end
    elsif msg_from_admin && ! chat_authorized
        reply = reply + "\n\nWARNING: Although you are my master, I have not been authorized to participate in this group. My functionality is limited."
    end
    send_message(message.chat.id, reply)
end

def process_command_voicechat(message, command, adm, vchat_info = @vchat_info)
    if is_chat_authorized?(message, @auth_chat) || message_from_admin?(message, adm)
        print "Checking connectivity to #{vchat_info['type']} service... "
        STDOUT.flush
        if vchat_info['type'].downcase != 'discord'
            if system("nc -zvw3 #{vchat_info['address']} #{vchat_info['port']} >/dev/null 2>&1")
                print "OK\n".green.bold
                STDOUT.flush
                reply = "#{vchat_info['type']} service is online.\n\n"
            else
                print "FAIL\n".red.bold
                STDOUT.flush
                reply = "#{vchat_info['type']} service is not responding!\n\n"
            end
        else
            reply = ""
        end
        reply = reply + "Voice Chat Connection Information\n" +
                        "-------------------------------------------------\n" +
                        "Application: #{vchat_info['type']}\n" +
                        "Address: #{vchat_info['address']}\n" +
                        "Port: #{vchat_info['port']}\n" +
                        "Password: #{vchat_info['password']}\n"
        if system("test -f static_text/custom/voicechat.txt")
            reply = reply + File.read("static_text/custom/voicechat.txt") #Add custom info
        end
        STDOUT.flush
    else
        reply = "Refusal: I am not authorized to provide this information here."
    end
    send_message(message.chat.id, reply)
end

def process_command_srvstart(message, command, adm)
    #puts "Received command: " + "srvstart".green
    #pp message
    from_admin = message_from_admin?(message, adm)
    auth_grp = is_chat_authorized?(message, @auth_chat)
    if ! auth_grp && ! from_admin
        return "Refusal: I am not authorized to perform this function for this group, meatbag."
    elsif ! from_admin
        return "Refusal: The meatbag #{message.from.username} is not my master."
    elsif ! auth_grp
        return "Refusal: Although I respect your wishes, master, I am not authorized to perform this function for this group."
    else
        telnet = @conf['telnet']
        puts `./scripts/srvstart  #{telnet['host']}`
        #return "Starting up the Empyrion service."
        return "This function is currently broken. An attempt was made, but odds are against the server having actually started.\n\n" +
                "Use /status for more info."
    end
end

def process_command_srvstop(message, command, adm)
    #puts "Received command: " + "srvstop".red
    from_admin = message_from_admin?(message, adm)
    auth_grp = is_chat_authorized?(message, @auth_chat)
    if ! auth_grp && ! from_admin
        return "Refusal: I am not authorized to perform this function for this group, meatbag."
    elsif ! from_admin
        return "Refusal: The meatbag #{message.from.username} is not my master."
    elsif ! auth_grp
        return "Refusal: Although I respect your wishes, master, I am not authorized to perform this function for this group."
    else
        telnet = @conf['telnet']
        `./scripts/srvstop #{telnet['host']} #{telnet['port']} #{telnet['pass']}`
        return "Affirmation: I am shutting down the Empyrion service."
    end
end

def process_command_srvstatus(message, command, adm)
    if is_chat_authorized?(message, @auth_chat) || message_from_admin?(message, adm)
        telnet = @conf['telnet']
        print 'Checking connectivity to Empyrion service... '
        STDOUT.flush
        if system("nc -zvw3 #{telnet['host']} #{telnet['port']} >/dev/null 2>&1")
            print "OK\n".green.bold + "Sending message receipt... "
            STDOUT.flush
            if `./scripts/srvstatus.receipt #{@conf['token']} #{message.chat.id}`
                print "OK\n".green.bold + "Fetching details...\n"
            else
                print "Receipt FAILED to send (non-zero exit code on scripts/srvstatus.receipt) !!!\nContinuing to fetch details anyway...\n".red.bold
            end
            reply = `./scripts/srvstatus #{telnet['host']} #{telnet['port']} #{telnet['pass']} #{@tmpdir}`
        else
            print "Server did not respond!\nSending failure message...\n".red.bold
            reply = "Exclamation: Server is not responding!"
        end
        STDOUT.flush
    else
        reply = "Refusal: I am not authorized to provide this information here."
    end
    return reply
end

def process_command_patchnotes(message, command, adm)
    if is_chat_authorized?(message, @auth_chat) || message_from_admin?(message, adm)
        #telnet = @conf['telnet']
        reply = File.read("static_text/patchnotes.txt")
    else
        reply = "Refusal: I am not authorized to provide this information here."
    end
    return reply
end