show referer on user role change

events/guildMemberUpdate.js

@@ -0,0 +1,63 @@
+const { EmbedBuilder } = require("discord.js");
+
+module.exports = {
+  name: "guildMemberUpdate",
+  async execute(oldMember, newMember) {
+    // If the role(s) are present on the new member object but are not on the old one (i.e role(s) were added)
+    const addedRoles = newMember.roles.cache.filter(
+      (role) => !oldMember.roles.cache.has(role.id)
+    );
+    if (addedRoles.size > 0) {
+      console.log(
+        `roles changed! added roles: ${addedRoles.map((r) => r.name)}}`
+      );
+      if (addedRoles.find((r) => r.name === "Community Regular")) {
+        await sendReferralMessage(newMember, false);
+      }
+      if (addedRoles.find((r) => r.name === "Community Member")) {
+        await sendReferralMessage(newMember, true);
+      }
+    }
+  },
+};
+
+async function sendReferralMessage(member, isMember) {
+  let referrer = await global.client.prisma.refferals.findFirst({
+    where: {
+      userid: member.id,
+    },
+    include: {
+      Members_MembersToRefferals_refferer: true,
+    },
+  });
+
+  if (!referrer) {
+    console.error(`No referral found for user ${member.id}.`);
+    return;
+  }
+
+  const embed = new EmbedBuilder()
+    .setColor("#FD8612")
+    .setTitle(
+      `${member.username} has become a ${isMember ? "Member" : "Regular"}!`
+    )
+    .addFields(
+      {
+        name: "Referrer",
+        value: referrer.Members_MembersToRefferals_refferer.DisplayName,
+        inline: false,
+      },
+      {
+        name: "Join date",
+        value: referrer.CreatedTimestamp.toString(),
+        inline: false,
+      }
+    )
+    .setFooter({
+      text: "Niels2398 FPG kraken bot",
+      iconURL:
+        "https://flamingpalm.com/assets/images/logo/FlamingPalmLogoSmall.png",
+    });
+
+  global.client.logChannel.send({ embeds: [embed] });
+}