Fix signup defaults and asset management

server/utils/defaults.ts

@@ -1,6 +1,8 @@
-import type { PrismaClient } from '@prisma/client'
+import type { Prisma, PrismaClient } from '@prisma/client'
 
-export async function createDefaultMoneyData(prisma: PrismaClient, userId: string) {
+type MoneyDataClient = PrismaClient | Prisma.TransactionClient
+
+export async function createDefaultMoneyData(prisma: MoneyDataClient, userId: string) {
   const cash = await prisma.asset.create({
     data: {
       userId,
@@ -34,3 +36,13 @@ export async function createDefaultMoneyData(prisma: PrismaClient, userId: strin
 
   return { cash }
 }
+
+export async function ensureDefaultMoneyData(prisma: MoneyDataClient, userId: string) {
+  const [assetCount, categoryCount] = await Promise.all([
+    prisma.asset.count({ where: { userId } }),
+    prisma.category.count({ where: { userId } })
+  ])
+
+  if (assetCount || categoryCount) return
+  await createDefaultMoneyData(prisma, userId)
+}