Remember last used label template and printer plugin per model type (#12146)

* Remember last used label template and printer plugin per model type

* Added playwright test for printing preference persistence and format code

* Used waitFor for react-select assertions for test case fixing and persist plugin key correctly

* Updated the problem resolution code and the tests

* Fixed printing test assertion to avoid word boundary failure with concatenated text

src/frontend/src/components/buttons/PrintingActions.tsx

@@ -11,6 +11,7 @@ import { api } from '../../App';
 import { extractAvailableFields } from '../../functions/forms';
 import useDataOutput from '../../hooks/UseDataOutput';
 import { useCreateApiFormModal } from '../../hooks/UseForm';
+import { useLocalState } from '../../states/LocalState';
 import {
   useGlobalSettingsState,
   useUserSettingsState
@@ -32,6 +33,11 @@ export function PrintingActions({
 }) {
   const userSettings = useUserSettingsState();
   const globalSettings = useGlobalSettingsState();
+  const localState = useLocalState();
+
+  const lastUsedPrinting = useMemo(() => {
+    return modelType ? localState.lastUsedPrinting[modelType] : undefined;
+  }, [localState.lastUsedPrinting, modelType]);
 
   const enabled = useMemo(() => items.length > 0, [items]);
 
@@ -118,6 +124,7 @@ export function PrintingActions({
     fields.template = {
       ...fields.template,
       autoFill: true,
+      value: lastUsedPrinting?.template,
       filters: {
         enabled: true,
         model_type: modelType,
@@ -147,7 +154,14 @@ export function PrintingActions({
     };
 
     return fields;
-  }, [defaultLabelPlugin, pluginKey, printingFields.data, itemIdList]);
+  }, [
+    defaultLabelPlugin,
+    pluginKey,
+    printingFields.data,
+    itemIdList,
+    lastUsedPrinting,
+    modelType
+  ]);
 
   const labelModal = useCreateApiFormModal({
     url: apiUrl(ApiEndpoints.label_print),
@@ -158,15 +172,21 @@ export function PrintingActions({
     onOpen: () => {
       setLabelDialogOpen(true);
       setItemIdList(items);
+      setPluginKey(lastUsedPrinting?.plugin ?? null);
     },
     onClose: () => {
       setLabelDialogOpen(false);
-      setPluginKey('');
     },
     submitText: t`Print`,
     successMessage: null,
-    onFormSuccess: (response: any) => {
+    onFormSuccess: (response: any, form: any) => {
-      setPluginKey('');
+      if (modelType) {
+        const values = form?.getValues?.();
+        localState.setLastUsedPrinting(modelType, {
+          plugin: pluginKey || undefined,
+          template: values?.template ? Number(values.template) : undefined
+        });
+      }
       setLabelId(response.pk);
     }
   });

src/frontend/src/states/LocalState.tsx

@@ -33,6 +33,12 @@ interface LocalStateProps {
   setLayouts: (layouts: any, noPatch?: boolean) => void;
   showSampleDashboard: boolean;
   setShowSampleDashboard: (value: boolean) => void;
+  // printing
+  lastUsedPrinting: Record<string, { plugin?: string; template?: number }>;
+  setLastUsedPrinting: (
+    modelType: string,
+    values: { plugin?: string; template?: number }
+  ) => void;
   // panels
   lastUsedPanels: Record<string, string>;
   setLastUsedPanel: (panelKey: string) => (value: string) => void;
@@ -122,6 +128,25 @@ export const useLocalState = create<LocalStateProps>()(
       setShowSampleDashboard: (value) => {
         set({ showSampleDashboard: value });
       },
+      // printing
+      lastUsedPrinting: {},
+      setLastUsedPrinting: (modelType, values) => {
+        const current = get().lastUsedPrinting[modelType] || {};
+        if (
+          current.plugin !== values.plugin ||
+          current.template !== values.template
+        ) {
+          set({
+            lastUsedPrinting: {
+              ...get().lastUsedPrinting,
+              [modelType]: {
+                ...current,
+                ...values
+              }
+            }
+          });
+        }
+      },
       // panels
       lastUsedPanels: {},
       setLastUsedPanel: (panelKey) => (value) => {

src/frontend/tests/pui_printing.spec.ts

@@ -65,7 +65,42 @@ test('Printing - Label Printing', async ({ browser }) => {
   await page.getByRole('button', { name: 'Print', exact: true }).isEnabled();
   await page.getByRole('button', { name: 'Print', exact: true }).click();
 
-  await page.getByText('Process completed successfully').first().waitFor();
+  const successMessage = page
+    .getByText('Process completed successfully')
+    .first();
+  await successMessage.waitFor();
+  await successMessage.waitFor({ state: 'hidden' });
+
+  // Re-open print dialog to verify persistence (issue #12129)
+  await page
+    .getByLabel('Stock Items')
+    .getByLabel('action-menu-printing-actions')
+    .click();
+  await page.getByLabel('action-menu-printing-actions-print-labels').click();
+
+  const labelDialog = page.getByRole('dialog', { name: 'Print Label' });
+
+  // Wait for the dialog to fully load
+  await labelDialog.getByLabel('related-field-template').waitFor();
+  await labelDialog.getByLabel('related-field-plugin').waitFor();
+
+  // Verify the last-used template is preselected
+  await expect(labelDialog).toContainText('InvenTree Stock Item Label');
+
+  // Verify the last-used plugin is preselected
+  await expect(labelDialog).toContainText('InvenTreeLabel');
+
+  // Submit again without re-selecting template or plugin
+  const printResponse = page.waitForResponse(
+    (response) =>
+      response.url().includes('/api/label/print/') &&
+      response.request().method() === 'POST' &&
+      response.ok()
+  );
+  await labelDialog.getByRole('button', { name: 'Print', exact: true }).click();
+
+  await printResponse;
+
   await page.context().close();
 });