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 avatar commented on July 3, 2024

Hello, I also would appreciate finally turning entire code into TypeScript base, or at least adding raw @types.
It would be also handy finally updating package on NPM.

I made TypeScript version of your code, @riyacchi. It's supports all mechanics you had before:

import { Emoji, Member, Message } from 'eris';
import { EventEmitter } from 'events';

export interface dataType {
    msg: Message,
    emoji: { name: string, id: string | null, animated?: boolean},
    userID: string
}

export default class ReactionCollector extends EventEmitter {
    constructor(message: Message, filter: (reactorID: string) => boolean, options?: { maxMatches?: number, time?: number }) {
        super();

        this.client = message.channel.client;
        this.filter = filter;
        this.message = message;
        this.options = options ? options : {};
        this.ended = false;
        this.collected = [];
        this.listener = (msg, emoji, reactor) => this.checkPreConditions(msg, emoji, reactor);

        this.client.on('messageReactionAdd', this.listener);
        if(this.options.time) setTimeout(() => this.stopListening('timeout'), options.time);

        new Promise((resolve) => {
            this.on('end', resolve);
        });
    }

    private client; filter; message; ended;
    private options: { maxMatches?: number, time?: number };
    private collected: dataType[];
    private listener: (msg: Message, emoji: Emoji, reactor: Member) => boolean;


    private checkPreConditions(msg: Message, emoji: Emoji, reactor: Member): boolean {
        if (this.message.id !== msg.id) {
            return false;
        }

        if (this.filter(reactor.id)) {
            this.collected.push({ msg, emoji, userID: reactor.id });
            this.emit('collected', { msg, emoji, userID: reactor.id } as dataType);

            if (this.options.maxMatches && this.collected.length >= this.options.maxMatches) {
                this.stopListening('maxMatches');
                return true;
            }
        }
        return false;
    }

    private stopListening(reason: 'timeout' | 'maxMatches') {
        if (this.ended) return;
        this.ended = true;
        this.client.removeListener('messageReactionAdd', this.listener);
        this.emit('end', this.collected, reason);
    }
}

Example usage with Eris:

require('dotenv').config();
import { Client } from 'eris';
import ReactionCollector, { dataType } from './client/reactionCollector';

const client = new Client(process.env.BOT_TOKEN);

client.on(`messageCreate`, async (msg) => {
    if(msg.content === 'cookie') {
        const m = await msg.channel.createMessage(`Click emoji to get cookie!`);
        await m.addReaction('🍪');

        const collector = new ReactionCollector(m, (userID) => userID === msg.author.id, { maxMatches: 1, time: 60000 });
        collector.on('collected', async (data: dataType) => {
            await msg.channel.createMessage(`Here, ${client.users.get(data.userID).username} grab your 🍪.`);
        });
    }
});

client.connect();

Like you can see, I removed "permanent" parameter. Generally it is quite stupid for me to create infinite await event in cache, but do like you want. You do not need to pass last parameter - options. If maxMatches is not provided, then that means you do not care about amount, it gonna catch reactions infinitely. The same goes with time. If you do not set time limit (in ms), then it gonna work infinitely.

from eris-reactions.

knht avatar knht commented on July 3, 2024

I'm not against TypeScript support, however I will not have the entire codebase in TypeScript like proposed above. Feel free to open a PR with typings to support TypeScript better (simple index.d.ts with a few interfaces to stop the TS compiler from yelling).

from eris-reactions.

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