Snippet: Discord member join birthday

Discord member join birthday
euroelite — euroelite
Pull all members from the server and welcome those who joined a week, a month, a year and more than a year ago TODAY.
const lib = require('lib')({token: process.env.STDLIB_SECRET_TOKEN});


class JoinTracker {
  memberCollection = {
    yearsAgo: [],
    lastYear: [],
    lastMonth: [],
    lastWeek: [],
  };

  async run() {
    let members = [];
    do {
      members = await this.getMembers(this.memberAfterID, process.env.GUILD_ID);
      this.compareDateOfMembers(members);
    } while (members.length > 0);

    let messageText =
      'Wir feiern heute die Mitgliedschaft auf diesem Server:\n';

    if (this.memberCollection.yearsAgo.length > 0) {
      this.memberCollection.yearsAgo.sort(this.sortByDate);
      messageText += '\n**__Mehr als ein Jahr am Start:__**\n';

      for await (let mmbr of this.memberCollection.yearsAgo) {
        messageText += `**${this.getYearsDiff(
          mmbr
        )} Jahre** am ${this.getDateFormatted(mmbr)} Uhr | <@${
          mmbr.user.id
        }> \n`;
      }
    }

    if (this.memberCollection.lastYear.length > 0) {
      this.memberCollection.lastYear.sort(this.sortByDate);
      messageText += `\n<${process.env.MIDDLE_ID}> <${process.env.MIDDLE_ID}> <${process.env.MIDDLE_ID}> \n\n**__Vor einem Jahr beigetreten:__**\n`;

      for await (let mmbr of this.memberCollection.lastYear) {
        messageText += `${this.getDateFormatted(mmbr)} Uhr | <@${
          mmbr.user.id
        }> \n`;
      }
    }

    if (this.memberCollection.lastMonth.length > 0) {
      this.memberCollection.lastMonth.sort(this.sortByDate);
      messageText += `\n<${process.env.MIDDLE_ID}> <${process.env.MIDDLE_ID}> <${process.env.MIDDLE_ID}> \n\n**__Jetzt einen Monat dabei:__**\n`;

      for await (let mmbr of this.memberCollection.lastMonth) {
        messageText += `${this.getDateFormatted(mmbr)} Uhr | <@${
          mmbr.user.id
        }> \n`;
      }
    }

    if (this.memberCollection.lastWeek.length > 0) {
      this.memberCollection.lastWeek.sort(this.sortByDate);
      messageText += `\n<${process.env.MIDDLE_ID}> <${process.env.MIDDLE_ID}> <${process.env.MIDDLE_ID}> \n\n**__Seit letzte Woche neu:__**\n`;

      for await (let mmbr of this.memberCollection.lastWeek) {
        messageText += `${this.getDateFormatted(mmbr)} Uhr | <@${
          mmbr.user.id
        }> \n`;
      }
    }

    if (
      this.memberCollection.yearsAgo.length > 0 ||
      this.memberCollection.lastYear.length > 0 ||
      this.memberCollection.lastMonth.length > 0 ||
      this.memberCollection.lastWeek.length > 0
    )
      await lib.discord.channels['@0.3.0'].messages.create({
        channel_id: `${process.env.CHANNEL_ID}`,
        content: messageText,
      });
  }

  getYearsDiff(yearsAgoMember) {
    let joinedDate = new Date(yearsAgoMember.joined_at);
    let today = new Date();
    return today.getFullYear() - joinedDate.getFullYear();
  }

  getDateFormatted(yearsAgoMember) {
    let date = new Date(yearsAgoMember.joined_at);

    return date.toLocaleString('de-DE', {
      day: 'numeric',
      month: 'short',
      year: 'numeric',
      hour: 'numeric',
      minute: '2-digit',
    });
  }

  sortByDate(a, b) {
    return new Date(a.joined_at) - new Date(b.joined_at);
  }

  compareDateOfMembers(members) {
    let today = new Date();

    let lastYear = new Date();
    let lastMonth = new Date();
    let lastWeek = new Date();

    lastYear.setFullYear(today.getFullYear() - 1);
    lastMonth.setMonth(today.getMonth() - 1);
    lastWeek.setDate(today.getDate() - 7);

    for (let member of members) {
      let joinedDate = new Date(member.joined_at);

      //test if Math.floor(Math.random() * 4 + 1) === 1


      if (this.isSameDate(joinedDate, lastYear)) {
        this.memberCollection.lastYear.push(member);
        continue;
      }
      
      
      if (this.isSameDayAnyYear(joinedDate, lastYear)) {
        this.memberCollection.yearsAgo.push(member);
        continue;
      }

      if (this.isSameDate(joinedDate, lastMonth)) {
        this.memberCollection.lastMonth.push(member);
        continue;
      }

      if (this.isSameDate(joinedDate, lastWeek)) {
        this.memberCollection.lastWeek.push(member);
        continue;
      }
    }
  }

  isSameDate(joinedDate, compareDate) {
    return (
      joinedDate.getDate() == compareDate.getDate() &&
      joinedDate.getMonth() == compareDate.getMonth() &&
      joinedDate.getFullYear() == compareDate.getFullYear()
    );
  }

  isSameDayAnyYear(joinedDate, compareDate) {
    let today = new Date();
  
    return (
      joinedDate.getDate() == compareDate.getDate() &&
      joinedDate.getMonth() == compareDate.getMonth() &&
      joinedDate.getFullYear() !== today.getFullYear() //exclude people joined today
    );
  }

  async getMembers(after = false, guild_id) {
    let params = {
      guild_id: `${guild_id}`,
      limit: 1000,
    };

    if (after !== false) {
      params.after = after;
    }

    let members = await lib.discord.guilds['@0.2.4'].members.list(params);
    if (members.length > 0) {
      this.memberAfterID = members[members.length - 1].user.id;
    }
    return members;
  }
}

let joinTracker = new JoinTracker();
await joinTracker.run();