Generate an image that light theme cant read

commands/images/nolight.js

@@ -0,0 +1,80 @@
+const { Command } = require('discord-akairo');
+const { createCanvas, loadImage } = require('canvas');
+const superagent = require('superagent');
+const fs = require('fs');
+const util = require('util');
+const exec = util.promisify(require('child_process').exec);
+
+class nolightCommand extends Command {
+	constructor() {
+		super('nolight', {
+			aliases: ['nolight', 'nl'],
+			category: 'images',
+			args: [
+				{
+					id: 'text',
+					type: 'string',
+					match: 'rest',
+					default: 'White theme user cant read this :^)'
+				}
+			],
+			description: {
+				content: 'Send text in an image that light user can\'t read :^)',
+				usage: '',
+				examples: ['']
+			}
+		});
+	}
+
+	async exec(message, args) {
+		let text = args.text;
+		message.channel.send('Processing <a:loadingmin:527579785212329984>')
+			.then(loadingmsg => loadingmsg.delete(2000));
+
+		const canvas = createCanvas(400, 400);
+		const applyText = (canvas, text) => {
+			const ctx = canvas.getContext('2d');
+
+			// Declare a base size of the font
+			let fontSize = 70;
+
+			do {
+				// Assign the font to the context and decrement it so it can be measured again
+				ctx.font = `${fontSize -= 10}px ubuntu`;
+			} while (ctx.measureText(text).width > 700 - 300);
+
+			// Return the result to use in the actual canvas
+			return ctx.font;
+		};
+
+		const ctx = canvas.getContext('2d');
+		const { body: buffer } = await superagent.get('https://cdn.discordapp.com/attachments/484013245158522909/551078672132734988/Untitled.png').catch(() => {
+			return message.channel.send('An error as occured, please try again');
+		});
+		const bg = await loadImage(buffer);
+		ctx.drawImage(bg, 0, 0, canvas.width, canvas.height);
+		ctx.font = applyText(canvas, text);
+		ctx.fillStyle = '#FFFFFF';
+		ctx.fillText(text, canvas.width / 10, canvas.height / 9.8);
+
+		fs.writeFile('./img/frame001.png', canvas.toBuffer(), function (err) {
+			if (err) {
+				return console.error(err);
+			}
+		});
+
+		async function apng() {
+			const { stdout, stderr } = await exec('apngasm img/nolight.png  img/frame00*.png /f');
+			console.log(`stdout: ${stdout}`);
+			console.log(`stderr: ${stderr}`);
+			if (stdout.includes('all done')) {
+				return message.channel.send({files: ['./img/nolight.png']});
+			} else {
+				return message.channel.send('An error has occured :((');
+			}
+		}
+		apng();
+	}
+}
+
+module.exports = nolightCommand;