2143: Readss fieldDataStorage as a hook

Author: Ruben van Leeuwen

frontend/packages/pydantic-forms/src/core/hooks/index.ts

@@ -5,3 +5,4 @@ export * from './useLabelProvider';
 export * from './usePydanticForm';
 export * from './useGetConfig';
 export * from './useGetValidationErrors';
+export * from './useFieldDataStorage';

frontend/packages/pydantic-forms/src/core/hooks/useFieldDataStorage.tsx

@@ -0,0 +1,41 @@
+import { useMemo, useRef } from 'react';
+
+export const useGetFieldDataStorage = () => {
+    const fieldDataStorageRef = useRef<Map<string, Map<string, unknown>>>(
+        new Map(),
+    );
+
+    const fieldDataStorage = useMemo(
+        () => ({
+            has: (fieldId: string, key: string | number) => {
+                if (
+                    fieldDataStorageRef.current &&
+                    fieldDataStorageRef.current.has(fieldId)
+                ) {
+                    const fieldStorage =
+                        fieldDataStorageRef.current.get(fieldId);
+                    return fieldStorage?.has(key.toString()) ?? false;
+                }
+                return false;
+            },
+            get: (fieldId: string, key: string | number) => {
+                const fieldData = fieldDataStorageRef?.current?.get(fieldId);
+                return fieldData?.get(key.toString());
+            },
+            set: (fieldId: string, key: string | number, value: unknown) => {
+                fieldDataStorageRef.current.set(
+                    fieldId,
+                    new Map([[key.toString(), value]]),
+                );
+            },
+            delete: (fieldId: string) => {
+                if (fieldDataStorageRef.current?.has(fieldId)) {
+                    fieldDataStorageRef.current.delete(fieldId);
+                }
+            },
+        }),
+        [],
+    );
+
+    return { fieldDataStorage };
+};