Shows buffer till demotion with the assumption that user is power user or higher
// ==UserScript==
// @name Gazelle Buffer Calculator
// @description Shows buffer till demotion with the assumption that user is power user or higher
// @version 5.1
// @author gblack (originally written by Pinguen and then modified by TankC, updated to use new required and demotion ratios by gblack, a minor edit in buffer calculus by Etheryte)
// @namespace passtheheadphones.m
// @include https://passtheheadphones.me/*
// @include https://notwhat.cd/*
// @include https://apollo.rip/*
// @include https://hydra.zone/*
// @include https://libble.me/*
// @include https://lztr.me/*
// ==/UserScript==
const ratio = 1.05;
const KB = Math.pow(2,10);
const MB = Math.pow(2,20);
const GB = Math.pow(2,30);
const TB = Math.pow(2,40);
const PB = Math.pow(2,50);
// getClass() function modified from webmasterworld.com/forum91/1729.htm
function getClass(name) {
var allPageTags=document.getElementsByTagName("*");
for (i=0; i<allPageTags.length; i++) {
if ( allPageTags[i].className == name ) return allPageTags[i];
}
}
// convert from format (amount units) to bytes
function toBytes(amount) {
var bytes = amount[0];
if ( amount[1] == "KB" ) bytes = amount[0] * KB;
else if ( amount[1] == "MB" ) bytes = amount[0] * MB;
else if ( amount[1] == "GB" ) bytes = amount[0] * GB;
else if ( amount[1] == "TB" ) bytes = amount[0] * TB;
else if ( amount[1] == "PB" ) bytes = amount[0] * PB;
return bytes;
}
// convert from bytes to whatever is appropriate, appended with units used
function fromBytes(bytes) {
var buffer = bytes;
var units = 'B';
if ( Math.abs(bytes) >= PB ) {
buffer = bytes/PB;
units = "PB";
} else if ( Math.abs(bytes) >= TB ) {
buffer = bytes/TB;
units = "TB";
} else if ( Math.abs(bytes) >= GB ) {
buffer = bytes/GB;
units = "GB";
} else if ( Math.abs(bytes) >= MB ) {
buffer = bytes/MB;
units = "MB";
} else if ( Math.abs(bytes) >= KB ) {
buffer = bytes/KB;
units = "KB";
}
return buffer.toFixed(2) + ' ' + units;
}
// sets the color based on the amount, similar to ratio coloring
function spanColor(bytes) {
var r_class;
if ( bytes > (100 * GB) ) r_class = 'r50';
else if ( bytes > (10 * GB) ) r_class = 'r10'; // was r20
else if ( bytes > 0 ) r_class = 'r09'; // was r10
else if ( bytes > (-1 * GB) ) r_class = 'r05';
else r_class = 'r00';
return r_class;
}
// calculate, format and return buffer
function calcBuffer(up, down, target) {
var upload = up.split(' ');
var download = down.split(' ');
var buffer;
// convert everything to bytes and find the buffer, then convert back to appropriate units
if (target == 0) {
var buffer_bytes = toBytes(upload) - toBytes(download);
buffer = fromBytes(buffer_bytes);
}
else {
var buffer_bytes = (toBytes(upload)/target) - toBytes(download);
buffer = fromBytes(buffer_bytes);
}
// get some color
var r_class = spanColor(buffer_bytes);
return '<span class="' + r_class + '">' + buffer + '</span>';
}
var myStats = document.getElementById('userinfo_stats');
var myUp = myStats.getElementsByTagName('li')[0].getElementsByTagName('span')[0].innerHTML;
var myDown = myStats.getElementsByTagName('li')[1].getElementsByTagName('span')[0].innerHTML;
var myDemBufferLi = document.createElement('li');
myDemBufferLi.className = 'my_demBuffer';
myDemBufferLi.innerHTML = ' Buffer: <span class="stat">' + calcBuffer(myUp, myDown, ratio);
myStats.appendChild(myDemBufferLi);