add coupon code

src/commands/apply.ts

@@ -45,6 +45,38 @@ export default class Apply extends Command {
       },
     });
 
+    this.services.set('cs::promot3', {
+      description: 'Receive 25% off your first purchase of Tier 3.',
+      type: 'SOFT',
+      url: 'https://eds.libraryofcode.org/cs/t3-promo',
+      validation: async (member: Member) => {
+        if (!member.roles.includes('546457886440685578')) return false;
+        const customer = await this.client.db.Customer.findOne({ userID: member.user.id }).lean().exec();
+        if (!customer) return false;
+        return true;
+      },
+      func: async (client: Client, ...data: any[]) => {
+        const member = await client.guilds.get(client.config.guildID).getRESTMember(data[0]);
+        const customer = await client.db.Customer.findOne({ userID: member.user.id }).lean().exec();
+        const coupon = await client.stripe.coupons.create({
+          percent_off: 25,
+          duration: 'once',
+          max_redemptions: 1,
+          name: 'Tier 3 - EDS Discount',
+        });
+        const promo = await client.stripe.promotionCodes.create({
+          coupon: coupon.id,
+          customer: customer.cusID,
+          max_redemptions: 1,
+          restrictions: {
+            first_time_transaction: true,
+          },
+        });
+        const chan = await client.getDMChannel(customer.userID);
+        chan.createMessage(`__**Tier 3 Coupon Code**__\n\`${promo.code}\`\n\n*Do not share this promotional code with anyone else. This promo code is good for your first purchase of Tier 2, 25% off applied. Will apply to your first invoice only, for more questions contact support.*`);
+      },
+    });
+
     this.services.set('p::role::constants', {
       description: 'Pre-approval for Constants role assignment.',
       type: 'SOFT',