/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 * jqplot formatter for byte values
 *
 * @package phpMyAdmin
 */
(function ($) {
    'use strict';
    var formatByte = function (value, index) {
        var val = value;
        var i = index;
        var units = [
            Messages.strB,
            Messages.strKiB,
            Messages.strMiB,
            Messages.strGiB,
            Messages.strTiB,
            Messages.strPiB,
            Messages.strEiB
        ];
        while (val >= 1024 && i <= 6) {
            val /= 1024;
            i++;
        }
        var format = '%.1f';
        if (Math.floor(val) === val) {
            format = '%.0f';
        }
        return $.jqplot.sprintf(
            format + ' ' + units[i], val
        );
    };
    /**
     * The index indicates what unit the incoming data will be in.
     * 0 for bytes, 1 for kilobytes and so on...
     */
    $.jqplot.byteFormatter = function (index) {
        var i = index || 0;
        return function (format, value) {
            var val = value;
            if (typeof val === 'number') {
                val = parseFloat(val) || 0;
                return formatByte(val, i);
            } else {
                return String(val);
            }
        };
    };
}(jQuery));
