Move create QR away from API

commands/edit-image/create-qr-code.js

@@ -1,5 +1,6 @@
 const Command = require('../../framework/Command');
-const request = require('node-superfetch');
+const { createCanvas } = require('@napi-rs/canvas');
+const { encodeQR } = require('qr');
 
 module.exports = class CreateQRCodeCommand extends Command {
 	constructor(client) {
@@ -8,14 +9,6 @@ module.exports = class CreateQRCodeCommand extends Command {
 			aliases: ['create-qr'],
 			group: 'edit-image',
 			description: 'Converts text to a QR Code.',
-			credit: [
-				{
-					name: 'goQR.me',
-					url: 'http://goqr.me/',
-					reason: 'QR code API',
-					reasonURL: 'http://goqr.me/api/'
-				}
-			],
 			args: [
 				{
 					key: 'text',
@@ -26,9 +19,26 @@ module.exports = class CreateQRCodeCommand extends Command {
 	}
 
 	async run(msg, { text }) {
-		const { body } = await request
-			.get('https://api.qrserver.com/v1/create-qr-code/')
-			.query({ data: text });
-		return msg.say({ files: [{ attachment: body, name: 'qr-code.png' }] });
+		const qr = this.createQRCode(text);
+		return msg.say({ files: [{ attachment: qr, name: 'qr-code.png' }] });
+	}
+
+	createQRCode(text) {
+		const qr = encodeQR(text, 'raw');
+		const size = qr.length;
+		const scale = 10;
+		const canvas = createCanvas(size * scale, size * scale);
+		const ctx = canvas.getContext('2d');
+		ctx.fillStyle = 'white';
+		ctx.fillRect(0, 0, canvas.width, canvas.height);
+		ctx.fillStyle = 'black';
+		for (let y = 0; y < size; y++) {
+			for (let x = 0; x < size; x++) {
+				if (qr[y][x]) {
+					ctx.fillRect(x * scale, y * scale, scale, scale);
+				}
+			}
+		}
+		return canvas.toBuffer('image/png');
 	}
 };