log-with-statusbar/examples/enable.js

A light weight logger with a status bar on the bottom or the top that does not disappear with scrolling

/**
 * Demonstrate how to use statusBarTextPush and statusBarTextPop 
 * functions to add/remove lines
 * To run:
 *  npm install progress-string
 * By: Ari Saif
 */
var log = require("../index.js")({
  ololog_configure: {
    locate: false,
    tag: true
  }
});
require("ansicolor").nice;

var progressString;
try {
  progressString = require("progress-string");
} catch (error) {
  console.log(
    `Please run "npm install progress-string" before running the demo.`
  );
  process.exit();
}

let i = 0;
let maxCount = 100;

var pBar = progressString({
  width: 40,
  total: maxCount,
  complete: "█",
  incomplete: "░",
  style: function(complete, incomplete) {
    return complete + "▒" + incomplete;
  }
});
log.configure({
  tag: true,
  locate: false
});

log.info(`-----------------------------------------------------------------`);
var date = new Date();
log(date);
log(`Generating randome numbers`);
log.info(`-----------------------------------------------------------------`);

setInterval(() => {
  log.info(Math.round(Math.random() * 1000 * 1000 * 1000));
  i++;
  log.setStatusBarText([]);
  log.statusBarTextPush(
    `Generating random numbers: ${pBar(i)}:`+ `${Math.round(
      (i / maxCount) * 100
    ).toString()}%`.green
  );

  if (i > maxCount / 4) {
    log.statusBarTextPush("Pushing a line at 25%!".red);
  }

  if (i > maxCount / 2) {
    log.statusBarTextPush("Pushing a line at 50%!".yellow);
  }

  if (i > (maxCount * 3) / 4) {
    log.statusBarTextPop();
    log.statusBarTextPop();
    log.statusBarTextPush("Popping 2 lines at 75%!".green);
  }

  if (i == maxCount) {
    i = 0;
  }
}, 50);


setTimeout(() => {
  log.info("disableStatusBar.".red);
  log.disableStatusBar();
}, 2000);

setTimeout(() => {
  log.info("enableStatusBar.".green);
  log.enableStatusBar();
}, 4000);


setTimeout(() => {
  log.info("Completely disable logging.".red);
  log = log.disable();
}, 6000);

setTimeout(() => {
  log = log.enable();
  log.info("Enable logging again".green);
}, 8000);