Add user preference settings

server/api/user-settings/index.patch.ts

@@ -0,0 +1,34 @@
+import { createError, readBody } from 'h3'
+import { prisma } from '../../utils/db'
+import { requireUser } from '../../utils/auth'
+
+const currencies = new Set(['KRW', 'USD', 'JPY'])
+
+export default defineEventHandler(async (event) => {
+  const user = await requireUser(event)
+  const body = await readBody<{
+    primaryCurrency?: string
+    monthStartDay?: number
+    weekStartDay?: number
+  }>(event)
+
+  const primaryCurrency = body.primaryCurrency || 'KRW'
+  const monthStartDay = Number(body.monthStartDay || 1)
+  const weekStartDay = Number(body.weekStartDay ?? 0)
+
+  if (!currencies.has(primaryCurrency)) {
+    throw createError({ statusCode: 400, statusMessage: 'Invalid currency' })
+  }
+  if (!Number.isInteger(monthStartDay) || monthStartDay < 1 || monthStartDay > 28) {
+    throw createError({ statusCode: 400, statusMessage: 'Invalid month start day' })
+  }
+  if (!Number.isInteger(weekStartDay) || weekStartDay < 0 || weekStartDay > 6) {
+    throw createError({ statusCode: 400, statusMessage: 'Invalid week start day' })
+  }
+
+  return prisma.userSetting.upsert({
+    where: { userId: user.id },
+    update: { primaryCurrency, monthStartDay, weekStartDay },
+    create: { userId: user.id, primaryCurrency, monthStartDay, weekStartDay }
+  })
+})