From 624df90edabbaeeb291d0f793afd64ba30271553 Mon Sep 17 00:00:00 2001
From: Adria Navarro <adria@budibase.com>
Date: Fri, 20 Dec 2024 12:23:50 +0100
Subject: [PATCH] Type derivedStore

---
 .../src/components/grid/stores/columns.ts           | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/packages/frontend-core/src/components/grid/stores/columns.ts b/packages/frontend-core/src/components/grid/stores/columns.ts
index 881c4dff6f..7831305e1b 100644
--- a/packages/frontend-core/src/components/grid/stores/columns.ts
+++ b/packages/frontend-core/src/components/grid/stores/columns.ts
@@ -1,4 +1,4 @@
-import { derived, get, Writable, writable } from "svelte/store"
+import { derived, get, Readable, Writable, writable } from "svelte/store"
 import { DefaultColumnWidth, GutterWidth } from "../lib/constants"
 import { CalculationType, FieldSchema } from "@budibase/types"
 import { StoreContext } from "."
@@ -7,6 +7,15 @@ export interface Store {
   columns: Writable<Column[]>
 }
 
+export interface DerivedStore {
+  tableColumns: Readable<Column[]>
+  displayColumn: Readable<Column>
+  columnLookupMap: Readable<Record<string, Column>>
+  visibleColumns: Readable<Column[]>
+  scrollableColumns: Readable<Column[]>
+  hasNonAutoColumn: Readable<boolean>
+}
+
 type Column = FieldSchema & {
   label: string
   readonly: boolean
@@ -51,7 +60,7 @@ export const createStores = (): Store => {
   }
 }
 
-export const deriveStores = (context: Store) => {
+export const deriveStores = (context: Store): DerivedStore => {
   const { columns } = context
 
   // Derive a lookup map for all columns by name