Bot replying multiple times when triggered by reaction - node.js

Question

Right now I am making a discord bot (in version 12 of discord.js).
It works like this:
Someone sends and insult
If the insult is included in a list (stored in insultes.json) the bot send a message and adds a reaction
If we add the same reaction the bot sends another message
The problem I'm facing is that if I keep adding the reaction the bot keeps replying 2, 3, 4 times and so on: every time (n) I check the reaction it replies with n+1 messages.
This is the code:
bot.on('message', message => {
const insulte = require('./insultes.json');
for (let p = 0; p < insulte.length; p++) {
// Check if the insult is in the list and make sure it's not from the bot itself
if (message.content.toLowerCase().includes(insulte[p]) && message.author.id !== "711337757435363468") {
message.channel.send("First message").then(messageReaction => {
messageReaction.react("➡️");
});
bot.on('messageReactionAdd', (reaction, user) => {
if (reaction.emoji.name === "➡️" && user.id !== "711337757435363468") {
message.channel.send("Additional message");
}
});
}
}
});

Answer 1

I think your problem comes from the fact that you're using bot.on('messageReactionAdd', ...: that means that every time you run that part of the code the code will add another listener that adds up to the ones that you used before.
Also, that code will trigger when a reaction to any message is added, not just the one you sent.
From your question, I don't understand if the bot is supposed to reply with one message every time you hit the reaction on that message, or just do it once and then ignore the message. I'll assume it's the latter.
Here's my take on this:
bot.on('message', message => {
const insults = require('./insultes.json')
if (insults.some(i => message.content.toLowerCase().includes(i)) && message.author.id !== "711337757435363468") {
message.channel.send("First message").then(myMsg=> {
myMsg.react("➡️");
let reactionFilter = (reaction, user) => reaction.emoji.name === '➡️' && user.id !== "711337757435363468"
myMsg.awaitReactions(reactionFilter, { max: 1 }).then(() => {
myMsg.channel.send('Additional message')
})
});
}
})
As you can see, I'm using Array.some() to check whether any insult is in the message, instead of a for loop. I'm using Message.awaitReactions() to fetch the first reaction and respond to that: after that, the bot will just ignore any other reaction on that message, but will still work on others.
Feel free to let me know if something is not clear or doesn't work :)