fix: paginate dropship pallet print details

firstleg/src/test/java/com/baiyue/firstleg/service/InboundCartonLabelPrintServiceTest.java

@@ -18,6 +18,7 @@ import org.springframework.http.ResponseEntity;
 import org.springframework.test.util.ReflectionTestUtils;
 
 import java.math.BigDecimal;
+import java.util.ArrayList;
 import java.util.List;
 
 import static org.assertj.core.api.Assertions.assertThat;
@@ -108,6 +109,43 @@ class InboundCartonLabelPrintServiceTest {
         assertThat(response.getBody()).containsExactly(4, 5, 6);
     }
 
+    @Test
+    void splitsLargeDropshipPalletDetailsAcrossPrintableA4Pages() {
+        Pallet pallet = dropshipPallet("OPEN");
+        stubPalletFacts(90001L);
+        List<DropshipPalletizationMapper.PrintSkuRow> skuRows = new ArrayList<>();
+        for (int index = 1; index <= 35; index++) {
+            DropshipPalletizationMapper.PrintSkuRow row = new DropshipPalletizationMapper.PrintSkuRow();
+            row.setSkuCode("SKU-" + index);
+            row.setCartonCount(1);
+            row.setItemQuantity(index);
+            row.setMinUnitsPerCarton(index);
+            row.setMaxUnitsPerCarton(index);
+            skuRows.add(row);
+        }
+        when(palletization.printSkuRows(90001L)).thenReturn(skuRows);
+        HttpHeaders headers = new HttpHeaders();
+        headers.setContentType(MediaType.APPLICATION_PDF);
+        when(print.generateDropshipPalletA4Documents(org.mockito.ArgumentMatchers.anyString(),
+            org.mockito.ArgumentMatchers.eq("request-large"), org.mockito.ArgumentMatchers.any()))
+            .thenReturn(new ResponseEntity<>(new byte[] {1}, headers,
+                org.springframework.http.HttpStatus.OK));
+
+        service.generateDropshipPallet(pallet, "PCHK2608040174", "request-large");
+
+        ArgumentCaptor<PrintPdfClient.DropshipPalletA4PdfRequest> request =
+            ArgumentCaptor.forClass(PrintPdfClient.DropshipPalletA4PdfRequest.class);
+        verify(print).generateDropshipPalletA4Documents(org.mockito.ArgumentMatchers.eq("internal-token"),
+            org.mockito.ArgumentMatchers.eq("request-large"), request.capture());
+        assertThat(request.getValue().documents()).hasSize(2).allSatisfy(document -> {
+            assertThat(document.palletNo()).isEqualTo("DP-260911-0001");
+            assertThat(document.inboundRows()).isNotEmpty().hasSizeLessThanOrEqualTo(10);
+            assertThat(document.skuRows()).hasSizeLessThanOrEqualTo(34);
+        });
+        assertThat(request.getValue().documents().get(0).skuRows()).hasSize(34);
+        assertThat(request.getValue().documents().get(1).skuRows()).hasSize(1);
+    }
+
     @Test
     void forwardsStableLabelsWithoutSkuAndOnlySafePdfHeaders() throws Exception {
         when(labels.list(10001L, 70001L, List.of(1))).thenReturn(batch());