update subscribe to workshop

src/WorkshopSubscription/workshopsubscription.schema.ts

@@ -38,6 +38,9 @@ export class WorkshopSubscriptionSchema extends PothosSchema {
           description:
             'The date and time the workshop subscription was created.',
         }),
+        notified: t.exposeBoolean('notified', {
+          description: 'Whether the user has been notified about the workshop.',
+        }),
       }),
     })
   }
@@ -73,5 +76,27 @@ export class WorkshopSubscriptionSchema extends PothosSchema {
         },
       }),
     }))
+    this.builder.mutationFields((t) => ({
+      subscribeToWorkshop: t.prismaField({
+        type: this.workshopSubscription(),
+        args: {
+          workshopId: t.arg.string({
+            description: 'The ID of the workshop to subscribe to.',
+            required: true,
+          }),
+        },
+        resolve: async (_query, _root, args, ctx) => {
+          if (ctx.isSubscription) throw new Error('Not allowed in subscription')
+          const userId = ctx.http.me?.id
+          if (!userId) throw new Error('User not authenticated')
+          return await this.prisma.workshopSubscription.create({
+            data: {
+              userId,
+              workshopId: args.workshopId,
+            },
+          })
+        },
+      }),
+    }))
   }
 }