const Command = require('../../structures/Command');
const { createCanvas, loadImage } = require('canvas');
const GIFEncoder = require('gifencoder');
const request = require('node-superfetch');
const path = require('path');
const { streamToArray } = require('../../util/Util');
const { drawImageWithTint } = require('../../util/Canvas');
const coord1 = [-25, -33, -42, -14];
const coord2 = [-25, -13, -34, -10];

module.exports = class TriggeredCommand extends Command {
	constructor(client) {
		super(client, {
			name: 'triggered',
			aliases: ['trigger'],
			group: 'edit-avatar',
			memberName: 'triggered',
			description: 'Draws a user\'s avatar over the "Triggered" meme.',
			throttling: {
				usages: 2,
				duration: 30
			},
			clientPermissions: ['ATTACH_FILES'],
			credit: [
				{
					name: 'NotAWeebDev',
					url: 'https://github.com/NotAWeebDev/',
					reason: 'Image',
					// eslint-disable-next-line max-len
					reasonURL: 'https://github.com/NotAWeebDev/Misaki/blob/2e44f9efb467028dcbae5a2c9f836d2e99860b85/assets/images/plate_triggered.png'
				}
			],
			args: [
				{
					key: 'user',
					prompt: 'Which user would you like to edit the avatar of?',
					type: 'user',
					default: msg => msg.author
				}
			]
		});
	}

	async run(msg, { user }) {
		const avatarURL = user.displayAvatarURL({ format: 'png', size: 512 });
		try {
			const base = await loadImage(path.join(__dirname, '..', '..', 'assets', 'images', 'triggered.png'));
			const { body } = await request.get(avatarURL);
			const avatar = await loadImage(body);
			const encoder = new GIFEncoder(base.width, base.width);
			const canvas = createCanvas(base.width, base.width);
			const ctx = canvas.getContext('2d');
			ctx.fillStyle = 'white';
			ctx.fillRect(0, 0, base.width, base.width);
			const stream = encoder.createReadStream();
			encoder.start();
			encoder.setRepeat(0);
			encoder.setDelay(50);
			encoder.setQuality(200);
			for (let i = 0; i < 4; i++) {
				drawImageWithTint(ctx, avatar, 'red', coord1[i], coord2[i], 300, 300);
				ctx.drawImage(base, 0, 218, 256, 38);
				encoder.addFrame(ctx);
			}
			encoder.finish();
			const buffer = await streamToArray(stream);
			return msg.say({ files: [{ attachment: Buffer.concat(buffer), name: 'triggered.gif' }] });
		} catch (err) {
			return msg.reply(`Oh no, an error occurred: \`${err.message}\`. Try again later!`);
		}
	}
};