mrmBot-Matrix/utils/pagination/awaitreactions.js
2019-09-13 15:02:41 -05:00

36 lines
1.3 KiB
JavaScript

// eris doesn't come with an awaitReactions method by default, so we make our own
const EventEmitter = require("events").EventEmitter;
class ReactionCollector extends EventEmitter {
constructor(message, filter, options = {}) {
super();
this.filter = filter;
this.message = message;
this.options = options;
this.ended = false;
this.collected = [];
this.bot = message.channel.guild ? message.channel.guild.shard.client : message.channel._client;
this.listener = (message, emoji, userID) => this.verify(message, emoji, userID);
this.bot.on("messageReactionAdd", this.listener);
if (options.time) setTimeout(() => this.stop("time"), options.time);
}
verify(message, emoji, userID) {
if (this.message.id !== message.id) return false;
if (this.filter(message, emoji, userID)) {
this.collected.push({ message: message, emoji: emoji, userID: userID });
this.emit("reaction", message, emoji, userID);
if (this.collected.length >= this.options.maxMatches) this.stop("maxMatches");
return true;
}
return false;
}
stop(reason) {
if (this.ended) return;
this.ended = true;
this.bot.removeListener("messageReactionAdd", this.listener);
this.emit("end", this.collected, reason);
}
}
module.exports = ReactionCollector;