gistfile1.js

//      Copyright (C) 2014 S.Kamber.

//      This program is free software: you can redistribute it and/or modify
//      it under the terms of the GNU General Public License as published by
//      the Free Software Foundation, either version 3 of the License, or
//      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 General Public License for more details.

//      You should have received a copy of the GNU General Public License
//      along with this program.  If not, see <http://www.gnu.org/licenses/>.



(
    function currentRate(seconds)
    {
        var limit = 0.0;
        var a = seconds.length - 1;
        var b = 0;
        var throttled = false;

        for (var i = seconds.length - 1; i > 0; i--)
        {
            limit = rateLimit(a - i);

            if (seconds[a] - seconds[i] < limit && !throttled)
            {
                throttled = true;

                b = limit - (seconds[a] - seconds[i]);

                continue;
            }

            if (b - (seconds[a] - seconds[i]) < 0)
            {
                throttled = false;

                a = i;
            }

            if (seconds[a] - seconds[i] > limit && !throttled)
            {
                thorttled = false;
            }

            if (seconds[a] - seconds[i] > limit * 2)
            {
                a = i;

                throttled = false;
            }
        }

        limit = rateLimit(a);
        
        if (seconds[a] - seconds[0] < limit)
        {
            console.log('limit'); // You're still throttled.
        }
        else
        {
            console.log('ok');  // It's ok to post a new message.
        }
	
    	function rateLimit(x)
        {
            return Math.min((4.1484 * Math.log(x) + 1.02242), 20).toFixed(1);
        }
    }
)
([1, 1, 2, 3, 7, 7, 7, 7])