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jonyrock/batteriesFakeData.js

Last active October 15, 2017 17:39
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batteriesFakeData.js
var date = new Date('2017-06-10 16:49:29');
var names = [ 'Samsung Galaxy S8', 'HTC U11', 'LG G6', 'Sony Xperia XZ', 'Honor 9', 'iPhone 7', 'OnePlus 5' ];
var charges = [];
var chargeDir = [];
const N = names.length;
const SWAP_TIME = Math.round(24 * 60 * 60 * 1000 / N); // 24 hours divided
function writeHeader() {
console.log('date,phoneName,charge');
}
writeHeader();
function generateCharges() {
charges = [];
chargeDir = [];
for(var i = 0; i < N; i++) {
charges.push(100 * Math.random());
chargeDir.push((Math.random() > 0.5) ? 1 : -1);
}
}
generateCharges();
var lastDirSwap = date.getTime();
function logStep() {
date.setTime(date.getTime() + 1000 + Math.round(Math.random() * 1000));
var pi = Math.round(Math.random() * N) % N;
var name = names[pi];
var charge = charges[pi];
if(date.getTime() - lastDirSwap > SWAP_TIME) {
lastDirSwap = date.getTime();
chargeDir[pi] = -chargeDir[pi];
}
if(charges[pi] === 0 || charges[pi] === 100) {
if(Math.random() > 0.9) {
chargeDir[pi] = -chargeDir[pi];
}
}
charges[pi] += chargeDir[pi] * Math.random() * 0.1;
charges[pi] = Math.min(Math.max(charges[pi], 0), 100);
console.log(date.toISOString() + ',' + name + ',' + charge);
}
function generateLog() {
for(var i = 0; i < 100000; i++) {
logStep();
}
}
generateLog();
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