Giveaway

const Enmap = require('enmap');
const cd = require('countdown');
const moment = require('moment');
const ms = require('ms');
const totime = require('to-time');
const dbg = new Enmap({ name: 'Giveaway' });

client.on('message',message => {
  if (message.author.bot) return;
  if (message.content === prefix+"help") {
  message.channel.sendMessage('**:gift: - Help Menu\n--------------------------\n:tada: | ``$start`` --> To Start a Giveaway.\n:tada: | ``$groll`` --> To Choose Another Winner.\n:tada: | ``$gend`` --> To End Giveaway.\n--------------------------**');
}
});

/////////////////
//gstart
client.on("ready", async () => {
  await dbg.defer;
  await console.log(`Logged in as [ ${client.user.username} ]!`);
  client.guilds.forEach(async g => {
    g.channels
      .filter(
        c =>
          c.type == "text" &&
          c.permissionsFor(client.user.id).has("VIEW_CHANNEL")
      )
      .forEach(async c => {
        let fetched = await c.fetchMessages();
        if (fetched.size == 0) return;
        let mess = await fetched.filter(
          r =>
            r.author.id === client.user.id &&
            r.content ==
              `**🎉 GIVEAWAY 🎉**`
        );
        if (mess.size == 0) return;
        mess.forEach(m => {
          if (!m) return;
          if (!dbg.get(`giveaway.${g.id}.${c.id}.${m.id}.time`)) return;
          let time2 = dbg.get(`giveaway.${g.id}.${c.id}.${m.id}.time`).gtime;
          let text2 = dbg.get(`giveaway.${g.id}.${c.id}.${m.id}.time`).gtext;
          let win2 = dbg.get(`giveaway.${g.id}.${c.id}.${m.id}.time`).gwin;
          if (time2 === null || time2 === undefined) return;
          let embed = new RichEmbed()
            .setColor("BLUE")
            .setAuthor(`${text2}`, g.iconURL)
            .setDescription(
              `React with 🎉 to enter!\nTime remaining: ${cd(
                new Date().getTime(),
                time2
              )}`
            )
            .setFooter(`Ends at`, client.user.avatarURL)
            .setTimestamp(time2);
          let embed2 = new RichEmbed()
            .setColor("RED")
            .setAuthor(text2, g.iconURL)
            .setFooter(`Ended at`);
          let ttimer = setInterval(async () => {
            if (
              !m ||
              m.content ==
                `🎉 **GIVEAWAY ENDED** 🎉`
            )
              return;
            let ttt = [-1, -2, -3, -4, -5, -6, -7, -8, -9, -10];
            if (ttt.includes(moment().diff(time2, "seconds")))
              return m.edit(
                `🎉 **GIVEAWAY** 🎉`,
                embed
                  .setColor("#ffb800")
                  .setDescription(
                    `**Last chance to enter!!!**\nReact with 🎉\nTime remaining: ${cd(
                      new Date().getTime(),
                      time2
                    )}`
                  )
              );
            m.edit(
              `🎉 **GIVEAWAY** 🎉`,
              embed.setDescription(
                `React with 🎉 to enter!\nTime remaining: ${cd(
                  new Date().getTime(),
                  time2
                )}`
              )
            );
            if (moment().isAfter(time2)) {
              m.reactions
                .filter(a => a.emoji.name == "🎉")
                .map(r =>
                  r.fetchUsers().then(u => {
                    let rusers = u
                      .filter(user => !user.bot)
                      .random(parseInt(win2));
                    m.edit(
                      `${g} GIVEAWAY ENDED ${g}`,
                      embed2
                        .setTimestamp()
                        .setDescription(`Winners:\n${rusers || "No winners"}`)
                    );
                    if (
                      m.reactions
                        .filter(a => a.emoji.name == "🎉")
                        .map(reaction => reaction.count)[0] <= 1
                    ) {
                      return m.channel.send(`No winners :rolling_eyes:`);
                    } else {
                      m.channel.send(
                        `Congratulations ${rusers}! You won the **${text2}**`
                      );
                    }
                    dbg.delete(`giveaway.${g.id}.${c.id}.${m.id}.time`);
                    clearInterval(ttimer);
                    return;
                  })
                );
            }
          }, 5000);
        });
      });
  });
});
//client.on('error', console.error);
//client.on('warn', warn => console.warn(`[WARN] - ${warn}`));
process.on("unhandledRejection", (reason, promise) => {
  console.log("Unhandled Rejection at:", reason.stack || reason);
});
client.on("message", async message => {
  //let g = client.guilds
  //  .get("606910399811420175")
  //    .emojis.find(r => r.name === "start");
  if (message.author.bot || message.channel.type == "dm") return undefined;
  let args = message.content.split(" ");
  let timer;
  if (args[0] == `${prefix}start`) {
    if (
      message.member.hasPermission("MANAGE_GUILD") ||
      message.member.roles.find(r => r.name == "GIVEAWAYS")
    ) {
      if (!args[1] || !args[2] || !args[3])
        return message.channel.send(
          `**Usage:** **\`${prefix}start [Time] [Winners] [Giveaway Prize]\n\`** **Example:** **\`${prefix}start 4h 1 Nitro\`**`
        );
      if (!message.guild.member(client.user).hasPermission("EMBED_LINKS"))
        return message.channel.send(`I don't have **Embed Links** permission.`);
      if (ms(args[1]) === undefined)
        return message.channel.send(`Please use a proper time format.`);
      if (isNaN(args[2]))
        return message.channel.send(`Winners must be number!`);
      if (args[2] < 1 || args[2] > 10)
        return message.channel.send(`Winners must be bettwen 1 and 10.`);
      let timega = ms(args[1]) / 1000;
      let time = Date.now() + totime.fromSeconds(timega).ms();
      if (timega < 5)
        return message.channel.send(
          `Giveaway time can't be less than 5 seconds.`
        );
      let timespan = cd(new Date().getTime(), time);
      let rusers;
      let embed = new RichEmbed()
        .setColor("BLUE")
        .setAuthor(`${args.slice(3).join(" ")}`)
        .setDescription(
          `React with 🎉 to enter!\nTime remaining: ${timespan}`
        )
        .setFooter(`Ends at`, client.user.avatarURL)
        .setTimestamp(time);
      let embed2 = new RichEmbed()
        .setColor("RED")
        .setAuthor(args.slice(3).join(" "))
        .setFooter(`Ended at`);
      let msg = await message.channel
        .send(
          `**🎉 GIVEAWAY 🎉**`,
          embed
        )
        .catch(err => message.channel.send(`Error: \`${err}\``));
      dbg.set(
        `giveaway.${message.guild.id}.${message.channel.id}.${msg.id}.time`,
        {
          gtime: time,
          gid: msg.id,
          gtext: args.slice(3).join(" "),
          gwin: args[2]
        }
      );
      await msg.react("🎉");
      timer = setInterval(() => {
        if (
          !msg ||
          msg.content ==
            `**🎉 GIVEAWAY ENDED 🎉**`
        )
          return;
        let ttt = [-2, -3, -4, -5, -6, -7, -8, -9, -10];
        if (ttt.includes(moment().diff(time, "seconds")))
          return msg.edit(
            `**🎉 GIVEAWAY 🎉**`,
            embed
              .setColor("#ffb800")
              .setDescription(
                `**Last chance to enter!!!**\nReact with 🎉\nTime remaining: ${cd(
                  new Date().getTime(),
                  time
                )}`
              )
          );
        msg.edit(
          `**🎉 GIVEAWAY 🎉**`,
          embed.setDescription(
            `React with 🎉 to enter!\nTime remaining: ${cd(
              new Date().getTime(),
              time
            )}`
          )
        );
        rusers = msg.reactions
          .filter(a => a.emoji.name == "🎉")
          .map(reaction =>
            reaction.users.filter(u => !u.bot).random(parseInt(args[2]))
          )[0];
        if (moment().isAfter(time)) {
          msg.edit(
            `** GIVEAWAY ENDED 🎉**`,
            embed2
              .setTimestamp()
              .setDescription(`Winners:\n${rusers || "No winners"}`)
          );
          if (
            msg.reactions
              .filter(a => a.emoji.name == "🎉")
              .map(reaction => reaction.count)[0] <= 1
          ) {
            return message.channel.send(``);
          } else {
            msg.channel.send(
              `Congratulations ${rusers}! You won the **${args
                .slice(3)
                .join(" ")}**`
            );
          }
          clearInterval(timer);
          return;
        }
      }, 5000);
    } else return undefined;
  } else if (args[0] == `${prefix}groll`) {
    if (
      message.member.hasPermission("MANAGE_GUILD") ||
      message.member.roles.find(r => r.name == "GIVEAWAYS")
    ) {
      if (!args[1])
        return message.channel.send(
          `**Usage:** **\`${prefix}groll [giveaway message id]\`**`
        );
      if (isNaN(args[1])) return message.channel.send(`Thats not a message ID`);
      message.channel
        .fetchMessage(args[1])
        .then(async m => {
          if (m.author.id != client.user.id)
            return message.channel.send(`This is not a giveaway message.`);
          if (!m.content.startsWith(`**🎉 GIVEAWAY**`))
            return message.channel.send(`This is not a giveaway message.`);
          if (
            m.content !=
            `**🎉 GIVEAWAY ENDED 🎉**`
          )
            return message.channel.send(`The giveaway is not ended.`);
          if (m.reactions.size < 1)
            return message.channel.send(
              `I can't find reactions in this message.`
            );
          if (
            m.reactions
              .filter(a => a.emoji.name == "🎉")
              .map(reaction => reaction.count)[0] <= 1
          )
            return message.channel.send(``);
          m.reactions
            .filter(a => a.emoji.name == "🎉")
            .map(r =>
              r.fetchUsers().then(async u => {
                let rusers = u.filter(user => !user.bot).random();
                await message.channel.send(`The new winner is: ${rusers}`);
              })
            );
        })
        .catch(err =>
          message.channel.send(`I can't find this message in the channel.`)
        );
    } else return undefined;
  } else if (args[0] == `${prefix}gend`) {
    if (
      message.member.hasPermission("MANAGE_GUILD") ||
      message.member.roles.find(r => r.name == "GIVEAWAYS")
    ) {
      if (!args[1])
        return message.channel.send(
          `**Usage:** **\`${prefix}gend [giveaway message id]\`**`
        );
      if (isNaN(args[1])) return message.channel.send(`Thats not a message ID`);
      message.channel
        .fetchMessage(args[1])
        .then(async m => {
          if (m.author.id != client.user.id)
            return message.channel.send(`This is not a giveaway message.`);
          if (!m.content.startsWith(`**🎉 GIVEAWAY**`))
            return message.channel.send(`This is not a giveaway message.`);
          if (
            m.content ==
            `**🎉 GIVEAWAY ENDED 🎉**`
          )
            return message.channel.send(`The giveaway is ended.`);
          if (m.reactions.size < 1)
            return message.channel.send(
              `I can't find reactions in this message.`
            );
          let gv = dbg.get(
            `giveaway.${message.guild.id}.${message.channel.id}.${m.id}.time`
          );
          let rusers = m.reactions.map(r =>
            r.users.filter(u => !u.bot).random(parseInt(gv.gwin))
          );
          let embed2 = new RichEmbed()
            .setColor("RED")
            .setAuthor(gv.gtext)
            .setFooter(`Ended at`);
          m.reactions
            .filter(a => a.emoji.name == "🎉")
            .map(r =>
              r.fetchUsers().then(async u => {
                let rusers = u
                  .filter(user => !user.bot)
                  .random(parseInt(gv.gwin));
                m.edit(
                  `**🎉 GIVEAWAY ENDED 🎉**`,
                  embed2
                    .setTimestamp()
                    .setDescription(`Winners:\n${rusers || "No winners"}`)
                );
                if (
                  m.reactions
                    .filter(a => a.emoji.name == "🎉")
                    .map(reaction => reaction.count)[0] <= 1
                ) {
                  return message.channel.send(`No winners :rolling_eyes:`);
                } else {
                  message.channel.send(
                    `Congratulations ${rusers}! You won the **${gv.gtext}**`
                  );
                }
                await dbg.delete(
                  `giveaway.${message.guild.id}.${message.channel.id}.${m.id}.time`
                );
                return;
              })
            );
        })
        .catch(err =>
          message.channel.send(`I can't find this message in the channel.`)
        );
    } else return undefined;
  }
})