Add skeleton for subscription resource

front/lib/resources/subscription_resource.ts

@@ -0,0 +1,34 @@
+import { Authenticator } from "@app/lib/auth";
+import { Subscription } from "@app/lib/models/plan";
+import { BaseResource } from "@app/lib/resources/base_resource";
+import { ReadonlyAttributesType } from "@app/lib/resources/storage/types";
+import { Ok, Result } from "@dust-tt/types";
+import { Attributes, CreationAttributes, ModelStatic, Transaction } from "sequelize";
+
+export interface SubscriptionResource extends ReadonlyAttributesType<Subscription> {}
+
+export class SubscriptionResource extends BaseResource<Subscription> {
+    static model: ModelStatic<Subscription> = Subscription;
+
+    constructor(model: ModelStatic<Subscription>, blob: Attributes<Subscription>) {
+        super(Subscription, blob);
+    }
+
+    static async makeNew(blob: CreationAttributes<Subscription>) {
+        const subscription = await Subscription.create({...blob});
+        return new SubscriptionResource(Subscription, subscription.get());
+    }
+
+    async delete(
+        auth: Authenticator,
+        { transaction }: { transaction?: Transaction } = {}
+      ): Promise<Result<undefined, Error>> {
+        await this.model.destroy({
+          where: {
+            id: this.id
+        },
+          transaction,
+        });
+        return new Ok(undefined);
+      }
+}