Initial commit for project Spoon!

packages/backend/convex/model.ts

@@ -0,0 +1,37 @@
+import { getAuthUserId } from '@convex-dev/auth/server';
+import { ConvexError } from 'convex/values';
+
+import type { Doc, Id } from './_generated/dataModel';
+import type { MutationCtx, QueryCtx } from './_generated/server';
+
+type Ctx = QueryCtx | MutationCtx;
+
+export const getRequiredUserId = async (ctx: Ctx): Promise<Id<'users'>> => {
+  const userId = await getAuthUserId(ctx);
+  if (!userId) throw new ConvexError('Not authenticated.');
+  return userId;
+};
+
+export const getOwnedSpoon = async (
+  ctx: Ctx,
+  spoonId: Id<'spoons'>,
+  ownerId: Id<'users'>,
+): Promise<Doc<'spoons'>> => {
+  const spoon = await ctx.db.get(spoonId);
+  if (spoon?.ownerId !== ownerId) {
+    throw new ConvexError('Spoon not found.');
+  }
+  return spoon;
+};
+
+export const requireText = (value: string, label: string): string => {
+  const trimmed = value.trim();
+  if (!trimmed) throw new ConvexError(`${label} is required.`);
+  return trimmed;
+};
+
+export const optionalText = (value: string | undefined) => {
+  const trimmed = value?.trim();
+  if (!trimmed) return undefined;
+  return trimmed;
+};