main.js

require("dotenv").config();
const Discord = require("discord.js");
const { MessageActionRow, MessageButton } = require("discord.js");
const express = require("express");
const axios = require("axios");
const link = require("linkvertise.js");
const ejs = require("ejs");
const userId = process.env.LINKVERTISE_USER_ID;
const linkvertise = new link(userId);
const client = new Discord.Client({ intents: 32767 });
const app = express();
const port = 300;
const data = {};
const appURL = process.env.APP_URL;
const cooldownTime = parseInt(process.env.COOLDOWN) * 60 * 1000;
const cooldowns = new Map();

app.set("view engine", "ejs");
app.set("views", "views");
app.use(express.static("assets"));

function generateToken() {
  var length = 50,
    charset = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890",
    token = "";
  for (var i = 0, n = charset.length; i < length; ++i) {
    token += charset.charAt(Math.floor(Math.random() * n));
  }
  return token;
}

client.on("messageCreate", (message) => {
  if (message.content.startsWith("!earn")) {
    const id = message.author.id;
    const options = {
      method: "GET",
      url: process.env.DASH_URL + "/api/userinfo/",
      params: { id: id },
      headers: { Authorization: `Bearer ${process.env.DASH_API}` },
    };
    axios.request(options).then(async function (response) {
      RESdata = response.data;
      if (RESdata.status == "invalid id") {
        message.reply(
          `Your are not registered! Register on: ${process.env.DASH_URL}/login`
        );
      } else {
        if (cooldowns.has(message.author.id)) {
  const expirationTime = cooldowns.get(message.author.id) + cooldownTime;
  if (Date.now() < expirationTime) {
    let seconds = (expirationTime - Date.now()) / 1000;
    let minutes = Math.floor(seconds / 60);
    let extraSeconds = seconds % 60;
    extraSeconds =
      extraSeconds < 10 ? "0" + extraSeconds : extraSeconds;

    let embed = new Discord.MessageEmbed()
      .setTitle("Cooldown!")
      .setDescription(
        "Please wait `" +
          `${minutes}` +
          " minutes` and `" +
          `${Math.floor(extraSeconds)} ` +
          "seconds` before generating the link again."
      )
      .setColor("#0099ff");
    message.reply({
      content: `<@${message.author.id}>`,
      embeds: [embed],
    });
    return;
  }
}

cooldowns.set(message.author.id, Date.now());
let user = message.author.id;
let otp = generateToken();
data[user] = generateToken();
let url = process.env.APP_URL + "/earn/" + user + "/" + otp;
const row = new MessageActionRow().addComponents(
  new MessageButton()
    .setURL(url)
    .setLabel("Earn Coins")
    .setStyle("LINK")
);
let embed = new Discord.MessageEmbed()
  .setTitle("Earn Coins")
  .setDescription(
    "**Success!** Link Generated for user: `" +
      user +
      "` \n```Hint: Use below buttons to get the link.```"
  )
  .setColor("#0099ff")
  .setFooter({
    text: `Requested By ${message.author.tag} | Made with ❤️ by NicoRuizDev`,
    iconURL: `${process.env.APP_ICON}`,
  });
message.reply({
  content: `<@${message.author.id}>`,
  embeds: [embed],
  components: [row],
});
      }
    });
  }
});

app.get("/earn/:user/:otp", (req, res) => {
  const user = req.params.user;
  const otp = req.params.otp;
  let url = `/redirect/${user}/${otp}`;
  res.render("start", { url: url });
});

app.get("/redirect/:user/:otp", (req, res) => {
  const user = req.params.user;
  const otp = req.params.otp;
  const token = data[user];
  let url = `${appURL}/verify/${user}/${otp}/${token}`;
  let shrink = linkvertise.shrink(url);
  res.redirect(shrink);
});

app.get("/verify/:user/:otp/:token", (req, res) => {
  const user = req.params.user;
  const otp = req.params.otp;
  const token = data[user];
  const coins = parseInt(process.env.COINS_TO_GIVE);
  if (data[user] == undefined) {
    res.redirect("/404");
  } else if (data[user] == token) {
    const dataRES = { id: user, coins: coins };
    axios
      .post(process.env.DASH_URL + "/api/addcoins", dataRES, {
        headers: {
          Authorization: `Bearer ${process.env.DASH_API}`,
        },
      })
      .then(() => {
        delete data[user];
        res.render("success", { coins: coins, user: user });
      });
  } else {
    res.redirect("/404");
  }
});

app.get("/404", (req, res) => {
  res.render("404");
});

app.listen(port, () => console.log(`Application listening on port ${port}!`));

client.once("ready", (c) => {
  console.log(`Ready! Logged in as ${c.user.tag}`);
});

client.login(process.env.DISCORD_TOKEN);