feat: initial commit

src/utilities/extractID.ts

@@ -0,0 +1,10 @@
+import { Config } from '@/payload-types'
+import type { CollectionSlug } from 'payload'
+
+export const extractID = <T extends Config['collections'][CollectionSlug]>(
+  objectOrID: T | T['id'],
+): T['id'] => {
+  if (objectOrID && typeof objectOrID === 'object') return objectOrID.id
+
+  return objectOrID
+}

src/utilities/getCollectionIDType.ts

@@ -0,0 +1,9 @@
+import type { CollectionSlug, Payload } from 'payload'
+
+type Args = {
+  collectionSlug: CollectionSlug
+  payload: Payload
+}
+export const getCollectionIDType = ({ collectionSlug, payload }: Args): 'number' | 'text' => {
+  return payload.collections[collectionSlug]?.customIDType ?? payload.db.defaultIDType
+}

src/utilities/getUserTenantIDs.ts

@@ -0,0 +1,31 @@
+import type { Tenant, User } from '../payload-types'
+import { extractID } from './extractID'
+
+/**
+ * Returns array of all tenant IDs assigned to a user
+ *
+ * @param user - User object with tenants field
+ * @param role - Optional role to filter by
+ */
+export const getUserTenantIDs = (
+  user: null | User,
+  role?: NonNullable<User['tenants']>[number]['roles'][number],
+): Tenant['id'][] => {
+  if (!user) {
+    return []
+  }
+
+  return (
+    user?.tenants?.reduce<Tenant['id'][]>((acc, { roles, tenant }) => {
+      if (role && !roles.includes(role)) {
+        return acc
+      }
+
+      if (tenant) {
+        acc.push(extractID(tenant))
+      }
+
+      return acc
+    }, []) || []
+  )
+}