mrmBot-Matrix/utils/pagination/awaitmessages.js

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// eris doesn't come with an awaitMessages method by default, so we make our own
import { EventEmitter } from "events";
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class MessageCollector extends EventEmitter {
constructor(client, channel, filter, options = {}) {
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super();
this.filter = filter;
this.channel = channel;
this.options = options;
this.ended = false;
this.collected = [];
this.bot = client;
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this.listener = message => this.verify(message);
this.bot.on("messageCreate", this.listener);
if (options.time) setTimeout(() => this.stop("time"), options.time);
}
verify(message) {
if (this.channel.id !== message.channel.id) return false;
if (this.filter(message)) {
this.collected.push(message);
this.emit("message", message);
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("messageCreate", this.listener);
this.emit("end", this.collected, reason);
}
}
export default MessageCollector;