Dominant Color Command

commands/analyze/dominant-color.js

@@ -0,0 +1,45 @@
+const Command = require('../../structures/Command');
+const { createCanvas, loadImage } = require('canvas');
+const request = require('node-superfetch');
+const { rgbToHex } = require('../../util/Util');
+
+module.exports = class DominantColorCommand extends Command {
+	constructor(client) {
+		super(client, {
+			name: 'dominant-color',
+			aliases: ['dom-color', 'dominant-colour', 'dom-colour'],
+			group: 'analyze',
+			memberName: 'dominant-color',
+			description: 'Determines the dominant color of an image.',
+			throttling: {
+				usages: 1,
+				duration: 10
+			},
+			args: [
+				{
+					key: 'image',
+					prompt: 'What image would you like to test?',
+					type: 'image',
+					default: msg => msg.author.displayAvatarURL({ format: 'png', size: 512 })
+				}
+			]
+		});
+	}
+
+	async run(msg, { image }) {
+		try {
+			const { body } = await request.get(image);
+			const data = await loadImage(body);
+			const canvas = createCanvas(250, 250);
+			const ctx = canvas.getContext('2d');
+			ctx.drawImage(data, 0, 0, 1, 1);
+			const imgData = ctx.getImageData(0, 0, 1, 1).data;
+			const hexColor = `#${rgbToHex(imgData[0], imgData[1], imgData[2]).padStart(6, '0')}`;
+			ctx.fillStyle = hexColor;
+			ctx.fillRect(0, 0, canvas.width, canvas.height);
+			return msg.say(hexColor, { files: [{ attachment: canvas.toBuffer(), name: 'dominant-color.png' }] });
+		} catch (err) {
+			return msg.reply(`Oh no, an error occurred: \`${err.message}\`. Try again later!`);
+		}
+	}
+};