xfinity/src/giveaway.js

Easy to use discord.js multipurpose package for your bot

const {
  MessageEmbed,
  User,
  MessageReaction,
  CommandInteraction,
} = require("discord.js");
const ms = require("ms");

function isNumeric(str) {
  if (typeof str != "string") return false;
  return !isNaN(str) && !isNaN(parseFloat(str));
}

/**
 *
 * @param {CommandInteraction} msg
 */
async function giveaway(msg, options = []) {
  await msg.followUp({
    content:
      "Alright! Lets config your giveaway (say end at any time to end the process)",
  });
  const filter = (m) => {
    return m.author.id == msg.member.user.id;
  };
  await msg.channel.send({
    content:
      'How long do you want your giveaway to be? \n(E.g 7 days is 7d, 1 month is 1m, 1 week is 1w, 7 minutes is 7mi). Say "help" for all supported formats.',
  });
  const length = msg.channel.createMessageCollector({ filter, time: 15000 });
  length.on("collect", async (m) => {
    if (m.content === "end") {
      length.stop();
      return msg.channel.send({ content: "Ended the giveaway process." });
    }
    if (m.content.toLowerCase() == "help") {
      return msg.channel.send({
        content:
          "Seconds (s), minutes (mi), hours (h), days (d), week (w), month (m)",
      });
    }
    let splitContent = m.content.split("");
    let modifier = splitContent[splitContent.length - 1];
    splitContent.pop();
    let amountoftime = splitContent.join("");
    if (isNaN(amountoftime) == true) {
      return msg.channel.send({ content: "Please enter a number." });
    }
    if (modifier == undefined) {
      return msg.channel.send({
        content: "Please enter a modifier, like day or month.",
      });
    }
    if (amountoftime == 0) {
      return msg.channel.send({ content: "Please enter a non-0 number" });
    }
    length.stop();
    msg.channel.send({ content: "What do you want to give away?" });
    const giveawayThing = msg.channel.createMessageCollector({
      filter,
      time: 15000,
    });
    giveawayThing.on("collect", async (m) => {
      if (m.content == "end") {
        giveawayThing.stop();
        return msg.channel.send({ content: "Ended the giveaway process." });
      }
      giveawayItem = m.content;
      giveawayThing.stop();
      await msg.channel.send({ content: "How many winners do you want?" });
      const winnerAmount = msg.channel.createMessageCollector({
        filter,
        time: 15000,
      });
      winnerAmount.on("collect", async (m) => {
        if (m.content == "end") {
          winnerAmount.stop();
          return msg.channel.send({ content: "Ended the giveaway process." });
        }
        let winnersAmount;
        if (isNumeric(m.content) == false) {
          return msg.channel.send({ content: "Please enter a number." });
        }
        if (m.content == 0) {
          return msg.channel.send({
            content: "You need at least one winner!",
          });
        }
        winnersAmount = m.content;
        const giveawayEmbed = new MessageEmbed()
          .setColor(options.color || "#0099ff ")
          .setAuthor(
            `This giveaway is active!`,
            msg.member.user.displayAvatarURL()
          )
          .setTitle(`${giveawayItem}`)
          .setDescription("React with 🎉 to join!")
          .addFields(
            {
              name: "Time",
              value: `${amountoftime}${modifier}`,
              inline: true,
            },
            {
              name: "Amount of winners",
              value: `${winnersAmount}`,
              inline: true,
            }
          )
          .setTimestamp()
          .setFooter(
            `${amountoftime}${modifier} Giveaway • ${winnersAmount} Winners • ${msg.guild.name} Giveaways`,
            msg.guild.iconURL({ dynamic: true })
          );
        let giveawayEmbedmsg = await msg.channel.send({
          embeds: [giveawayEmbed],
        });
        giveawayEmbedmsg.react("🎉");
        let time = [];
        time.push(amountoftime);

        modifier = modifier.toLowerCase();
        if (modifier == "s") {
          time.push("seconds");
        }
        if (modifier == "mi") {
          time.push("minutes");
        }
        if (modifier == "h") {
          time.push("hours");
        }
        if (modifier == "d") {
          time.push("days");
        } else if (modifier == "w") {
          time.push("weeks");
        } else if (modifier == "m") {
          time.push("months");
        }
        let timeinms = ms(time.join(" "));
        /**
         *
         * @param {MessageReaction} reaction
         * @param {User} user
         * @returns
         */
        const filter = (reaction, user) => {
          if (user.bot) return;
          return reaction.emoji.name === "🎉";
        };
        let col = giveawayEmbedmsg.createReactionCollector({
          filter,
          time: timeinms,
        });
        let allReacted = [];
        col.on("collect", (reaction, user) => {
          if (reaction.emoji.name != "🎉") {
            return;
          }
          allReacted.push(`<@${user.id}>`);
          winnerAmount.stop();
          setTimeout(async () => {
            try {
              const kek = determineWinners(allReacted, winnersAmount);
              const winners = kek.map((user) => user.toString()).join(", ");

              msg.channel
                .send({ content: `${winners}` })
                .then((tag) => tag.delete());
              let newEmbed = new MessageEmbed()
                .setTitle(giveawayEmbedmsg.embeds[0].title)
                .setColor(giveawayEmbedmsg.embeds[0].hexColor)
                .setAuthor(
                  `This giveaway is over!`,
                  msg.member.user.displayAvatarURL()
                )
                .addFields({
                  name: "Winners",
                  value: `${winners}`,
                })
                .setFooter(
                  options.congratsmsg || "Congratulations to all the winners."
                );
              await giveawayEmbedmsg.edit({ embeds: [newEmbed] });
            } catch (e) {
              console.log(e);
            }
          }, timeinms);
        });
      });
    });
  });
}
module.exports = giveaway;
function determineWinners(users, max) {
  if (users.length <= max) return users;
  const numbers = new Set();
  const winnersArray = [];
  let i = 0;
  while (i < max) {
    const random = Math.floor(Math.random() * users.length);
    const selected = users[random];
    if (!numbers.has(random)) {
      winnersArray.push(selected);
      i++;
    }
  }
  return winnersArray;
}