add the reorganize pages tool (#4506)

frontend/src/components/tools/reorganizePages/ReorganizePagesSettings.tsx

@@ -0,0 +1,65 @@
+import React from 'react';
+import { Divider, Select, Stack, TextInput } from '@mantine/core';
+import { useTranslation } from 'react-i18next';
+import { ReorganizePagesParameters } from '../../../hooks/tools/reorganizePages/useReorganizePagesParameters';
+import { getReorganizePagesModeData } from './constants';
+
+export default function ReorganizePagesSettings({
+  parameters,
+  onParameterChange,
+  disabled,
+}: {
+  parameters: ReorganizePagesParameters;
+  onParameterChange: <K extends keyof ReorganizePagesParameters>(
+    key: K,
+    value: ReorganizePagesParameters[K]
+  ) => void;
+  disabled?: boolean;
+}) {
+  const { t } = useTranslation();
+  const modeData = getReorganizePagesModeData(t);
+
+  const requiresOrder = parameters.customMode === '' || parameters.customMode === 'DUPLICATE';
+  const selectedMode = modeData.find(mode => mode.value === parameters.customMode) || modeData[0];
+  return (
+    <Stack gap="sm">
+      <Select
+        label={t('pdfOrganiser.mode._value', 'Organization mode')}
+        data={modeData}
+        value={parameters.customMode}
+        onChange={(v) => onParameterChange('customMode', v ?? '')}
+        disabled={disabled}
+      />
+      {selectedMode && (
+        <div 
+          style={{
+            backgroundColor: 'var(--information-text-bg)',
+            color: 'var(--information-text-color)',
+            padding: '8px 12px',
+            borderRadius: '8px',
+            marginTop: '4px',
+            fontSize: '0.75rem',
+            textAlign: 'center'
+          }}
+        >
+          {selectedMode.description}
+        </div>
+      )}
+
+      {requiresOrder && (
+        <>
+        <Divider/>
+        <TextInput
+          label={t('pageOrderPrompt', 'Page order / ranges')}
+          placeholder={t('pdfOrganiser.placeholder', 'e.g. 1,3,2,4-6')}
+          value={parameters.pageNumbers}
+          onChange={(e) => onParameterChange('pageNumbers', e.currentTarget.value)}
+          disabled={disabled}
+        />
+        </>
+      )}
+    </Stack>
+  );
+}
+
+

frontend/src/components/tools/reorganizePages/constants.ts

@@ -0,0 +1,59 @@
+import { TFunction } from 'i18next';
+
+export const getReorganizePagesModeData = (t: TFunction) => [
+  { 
+    value: '', 
+    label: t('pdfOrganiser.mode.1', 'Custom Page Order'),
+    description: t('pdfOrganiser.mode.desc.CUSTOM', 'Use a custom sequence of page numbers or expressions to define a new order.')
+  },
+  { 
+    value: 'REVERSE_ORDER', 
+    label: t('pdfOrganiser.mode.2', 'Reverse Order'),
+    description: t('pdfOrganiser.mode.desc.REVERSE_ORDER', 'Flip the document so the last page becomes first and so on.')
+  },
+  { 
+    value: 'DUPLEX_SORT', 
+    label: t('pdfOrganiser.mode.3', 'Duplex Sort'),
+    description: t('pdfOrganiser.mode.desc.DUPLEX_SORT', 'Interleave fronts then backs as if a duplex scanner scanned all fronts, then all backs (1, n, 2, n-1, …).')
+  },
+  { 
+    value: 'BOOKLET_SORT', 
+    label: t('pdfOrganiser.mode.4', 'Booklet Sort'),
+    description: t('pdfOrganiser.mode.desc.BOOKLET_SORT', 'Arrange pages for booklet printing (last, first, second, second last, …).')
+  },
+  { 
+    value: 'SIDE_STITCH_BOOKLET_SORT', 
+    label: t('pdfOrganiser.mode.5', 'Side Stitch Booklet Sort'),
+    description: t('pdfOrganiser.mode.desc.SIDE_STITCH_BOOKLET_SORT', 'Arrange pages for side‑stitch booklet printing (optimized for binding on the side).')
+  },
+  { 
+    value: 'ODD_EVEN_SPLIT', 
+    label: t('pdfOrganiser.mode.6', 'Odd-Even Split'),
+    description: t('pdfOrganiser.mode.desc.ODD_EVEN_SPLIT', 'Split the document into two outputs: all odd pages and all even pages.')
+  },
+  { 
+    value: 'ODD_EVEN_MERGE', 
+    label: t('pdfOrganiser.mode.10', 'Odd-Even Merge'),
+    description: t('pdfOrganiser.mode.desc.ODD_EVEN_MERGE', 'Merge two PDFs by alternating pages: odd from the first, even from the second.')
+  },
+  { 
+    value: 'DUPLICATE', 
+    label: t('pdfOrganiser.mode.11', 'Duplicate all pages'),
+    description: t('pdfOrganiser.mode.desc.DUPLICATE', 'Duplicate each page according to the custom order count (e.g., 4 duplicates each page 4×).')
+  },
+  { 
+    value: 'REMOVE_FIRST', 
+    label: t('pdfOrganiser.mode.7', 'Remove First'),
+    description: t('pdfOrganiser.mode.desc.REMOVE_FIRST', 'Remove the first page from the document.')
+  },
+  { 
+    value: 'REMOVE_LAST', 
+    label: t('pdfOrganiser.mode.8', 'Remove Last'),
+    description: t('pdfOrganiser.mode.desc.REMOVE_LAST', 'Remove the last page from the document.')
+  },
+  { 
+    value: 'REMOVE_FIRST_AND_LAST', 
+    label: t('pdfOrganiser.mode.9', 'Remove First and Last'),
+    description: t('pdfOrganiser.mode.desc.REMOVE_FIRST_AND_LAST', 'Remove both the first and last pages from the document.')
+  },
+];