112 lines
2.6 KiB
JavaScript
112 lines
2.6 KiB
JavaScript
'use strict';
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const colors = require('./utils/colors');
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const chalk = require('chalk');
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const stringWidth = require('string-width');
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const readline = require('readline');
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class Debugger {
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constructor () {
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this.enabled = true;
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this.capturing = false;
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this.capturedMessages = [];
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}
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enable () {
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this.enabled = true;
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}
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capture () {
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this.enabled = true;
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this.capturing = true;
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}
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endCapture () {
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this.enabled = false;
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this.capturing = false;
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this.capturedMessages = [];
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}
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log () {
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if (this.enabled) {
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this.captureConsole(Array.from(arguments), console.log);
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}
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}
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info (message) {
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if (this.enabled) {
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const titleFormatted = colors.formatTitle('info', 'I');
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this.log(titleFormatted, message);
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}
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}
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note (message) {
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if (this.enabled) {
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const titleFormatted = colors.formatTitle('note', 'N');
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this.log(titleFormatted, message);
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}
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}
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title (severity, title, subtitle) {
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if (this.enabled) {
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const date = new Date();
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const dateString = chalk.grey(date.toLocaleTimeString());
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const titleFormatted = colors.formatTitle(severity, title);
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const subTitleFormatted = colors.formatText(severity, subtitle);
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const message = `${titleFormatted} ${subTitleFormatted}`
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// In test environment we don't include timestamp
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if(process.env.NODE_ENV === 'test') {
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this.log(message);
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this.log();
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return;
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}
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// Make timestamp appear at the end of the line
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let logSpace = process.stdout.columns - stringWidth(message) - stringWidth(dateString)
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if (logSpace <= 0) {
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logSpace = 10
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}
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this.log(`${message}${' '.repeat(logSpace)}${dateString}`);
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this.log();
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}
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}
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clearConsole () {
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if (!this.capturing && this.enabled && process.stdout.isTTY) {
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// Fill screen with blank lines. Then move to 0 (beginning of visible part) and clear it
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const blank = '\n'.repeat(process.stdout.rows)
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console.log(blank)
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readline.cursorTo(process.stdout, 0, 0)
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readline.clearScreenDown(process.stdout)
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}
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}
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captureLogs (fun) {
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try {
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this.capture();
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fun.call();
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return this.capturedMessages;
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} catch (e) {
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throw e;
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} finally {
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this.endCapture();
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}
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}
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captureConsole (args, method) {
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if (this.capturing) {
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this.capturedMessages.push(chalk.stripColor(args.join(' ')).trim());
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} else {
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method.apply(console, args);
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}
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}
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}
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function capitalizeFirstLetter (string) {
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return string.charAt(0).toUpperCase() + string.slice(1);
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}
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module.exports = new Debugger();
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