spammy-matrix-bots/index.js

import config from "./config.json" assert { type: "json" };
import {
    MatrixClient,
    SimpleFsStorageProvider,
    AutojoinRoomsMixin,
    RichRepliesPreprocessor,
} from "matrix-bot-sdk";

const storage = new SimpleFsStorageProvider("storage.json");
const client = new MatrixClient(config.homeserver, config.token, storage);

AutojoinRoomsMixin.setupOnClient(client);
client.addPreprocessor(new RichRepliesPreprocessor(false));
client.start().then(() => console.log(`Client has started!`));

// ? event listener
client.on("room.message", (roomId, event) => {
    // ? check if the message's text is not empty and isn't sent by the bot itself
    if (!event["content"] || event["sender"] === config.user) return;
    const message = event["content"]["body"].toLowerCase();

    if (message.match(/m*.e*.o*.w/gi)) {
        let msg = "meow";
        while (Math.floor(Math.random() * 5)) {
            msg = msg.concat(" meow");
        }
        client.replyNotice(roomId, event, msg);
    }
});