MOOver.js/main.js

const Discord = require('discord.js');
const client = new Discord.Client();
const prefix = '#';
var author = " ";
var storedLink = " ";
var link = new Discord.MessageAttachment();
var messageId;
var yes = false;
    
client.once('ready', () => {
    console.log('Im online!');
});

client.on('message', message => {

    const args = message.content.split(' ');

    //storedMessages.push(message.content);
    

    let msg = message.content.toLowerCase();

    if(message.attachments.first() === undefined){
    }
    
    if (message.content.startsWith("http")){      
        author = message.author.username;
        storedLink = message.content;
        messageId = message.id;
        yes = true;
    }
    else if(message.attachments.first() != undefined){
        let storedMessage = message.attachments.first();        
        link = new Discord.MessageAttachment(storedMessage.url);
        messageId = message.id;
        yes = true;
    }

    if(msg.startsWith("henlo") && message.author.bot == false){
        var emojis = ["🥰", "🐄", "🐮", "❤️", "👋", "🤠", "😊"];
        let randomNum = Math.floor(Math.random() * 7);
        message.channel.send("Henlooo " + message.author.username + "   " + emojis[randomNum]);
    }
    else if (message.mentions.channels.first() && yes){
        if (args.length === 1){    
            message.react('🐮');
            let channelId = "";
            let channelIdArray = message.content.split('');
            channelIdArray.splice(0, 2);
            channelIdArray.pop();


            for (i = 0; i < channelIdArray.length; i++){
                channelId += channelIdArray[i];
            }

            message.delete({timeout: 5000});

            var toDelete = message.channel.messages.cache.get(messageId);
            toDelete.delete();

            let getChannel = client.channels.cache.get(channelId);
            getChannel.send(author + "\n" + storedLink);
        }

        yes = false;
    }
    else if (msg.startsWith("how ye") && message.author.bot === false){
        let randomNum = Math.floor(Math.random() * 5);
        var responses = ["Not bad, how yee?", "MOOdy", "A bit sad 😢", "Good, how yee?", "I'm fine, how yee?"];
        message.channel.send(responses[randomNum]);
    }
    else if (msg.startsWith("tylko jedno")){
        message.channel.send("Koksu pięć gram odlecieć sam");
    }

});

client.login(process.env.token);