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lastleg-service/src/test/java/com/baiyue/lastleg/inventory/command/InventoryCommandServiceTest.java

@@ -97,7 +97,7 @@ class InventoryCommandServiceTest {
 
         assertThrows(ResponseStatusException.class,
             () -> service.hold("100", "7", new InventoryCommandRequests.Move(
-                "100", 201L, 6, "ORD-1", null, null, "hold-1", null)));
+                201L, 6, "ORD-1", null, null, "hold-1", null)));
         verify(positions, never()).updateById(any(InventoryPosition.class));
         verify(balances, never()).updateById(any(InventoryBalance.class));
     }
@@ -129,7 +129,7 @@ class InventoryCommandServiceTest {
         when(commands.palletPackages("100", 300L)).thenReturn(0L);
 
         var result = service.ship("100", "7", new InventoryCommandRequests.Move(
-            "100", 201L, 5, "OUT-1", "OUT-1", null, "ship-1", null));
+            201L, 5, "OUT-1", "OUT-1", null, "ship-1", null));
 
         assertTrue(result.palletEmpty());
         assertEquals("EMPTY", position.getStatus());
@@ -137,6 +137,23 @@ class InventoryCommandServiceTest {
         verify(ledgers).insert(any(InventoryLedger.class));
     }
 
+    @Test
+    void platformHoldDerivesCustomerFromInventoryPosition() {
+        InventoryBalance balance = balance(200L, 5);
+        InventoryPosition position = position(201L, 200L, 5);
+        position.setCustomerId("200");
+        when(commands.findPosition(201L)).thenReturn(position);
+        when(commands.lockPosition("200", 201L)).thenReturn(position);
+        when(commands.lockBalance("200", 200L)).thenReturn(balance);
+        InventoryCommandRequests.Move request = new InventoryCommandRequests.Move(
+            201L, 2, "ORD-1", null, null, "platform-hold-1", null);
+
+        service.holdPlatform("7", request);
+
+        verify(commands).lockPosition("200", 201L);
+        verify(operations).findIdempotency("200", "platform-hold-1");
+    }
+
     private InventoryCommandRequests.StockIn stockIn(String inbound, String key, long packages, long quantity) {
         return new InventoryCommandRequests.StockIn("100", "Customer 100", "WH-1", "WH1", "Warehouse 1",
             "DEST-1", "ONT8", "ONT8", 101L, inbound, "IN-CODE-1", "SKU-1", "Product 1", null,

lastleg-service/src/test/java/com/baiyue/lastleg/inventory/command/controller/InventoryCommandControllerTest.java

@@ -44,14 +44,14 @@ class InventoryCommandControllerTest {
     @Test
     void permittedBackOfficeUserCanRunInventoryFormCommand() {
         var request = move();
-        when(service.hold("100", "7", request)).thenReturn(response());
+        when(service.holdPlatform("7", request)).thenReturn(response());
         controller.hold(user(Set.of(InventoryCommandController.MANAGE_PERMISSION)), request);
-        verify(service).hold("100", "7", request);
+        verify(service).holdPlatform("7", request);
     }
 
     @Test
     void physicalAdjustmentRequiresDedicatedPermission() {
-        var request = new InventoryCommandRequests.Adjustment("100", 1L, 2, "COUNT", "ORD-1", "adj-1", null);
+        var request = new InventoryCommandRequests.Adjustment(1L, 2, "COUNT", "ORD-1", "adj-1", null);
         ResponseStatusException exception = assertThrows(ResponseStatusException.class,
             () -> controller.adjust(user(Set.of(InventoryCommandController.MANAGE_PERMISSION)), request));
         assertEquals(403, exception.getStatusCode().value());
@@ -59,11 +59,11 @@ class InventoryCommandControllerTest {
     }
 
     private InventoryCommandRequests.Move move() {
-        return new InventoryCommandRequests.Move("100", 1L, 2, "ORD-1", null, null, "hold-1", null);
+        return new InventoryCommandRequests.Move(1L, 2, "ORD-1", null, null, "hold-1", null);
     }
 
     private AuthenticatedUser user(Set<String> permissions) {
-        return new AuthenticatedUser(7L, 100L, 100L, 8L, "operator", "MERCHANT", "WEB", permissions);
+        return new AuthenticatedUser(7L, 0L, 0L, 8L, "operator", "PLATFORM", "WEB", permissions);
     }
 
     private InventoryCommandResponse response() {

lastleg-service/src/test/java/com/baiyue/lastleg/inventory/query/controller/InventoryQueryControllerTest.java

@@ -21,21 +21,21 @@ class InventoryQueryControllerTest {
         1L, 20L, null, null, null, null, null, null, null, null, null, null, null, null);
 
     @Test
-    void merchantCannotOverrideCustomerScope() {
-        controller.balances(user(100L, "MERCHANT"), "200", query);
-        verify(service).balances(eq("100"), eq(query));
+    void platformBalancePageQueriesAllCustomers() {
+        controller.balances(user(0L, "PLATFORM"), query);
+        verify(service).balances(eq(null), eq(query));
     }
 
     @Test
-    void platformMustSelectCustomer() {
+    void merchantCannotUsePlatformInventoryController() {
         assertThrows(ResponseStatusException.class,
-            () -> controller.summary(user(0L, "PLATFORM"), null, query));
+            () -> controller.summary(user(100L, "MERCHANT"), query));
     }
 
     @Test
-    void platformCanQuerySelectedCustomer() {
-        controller.summary(user(0L, "PLATFORM"), "200", query);
-        verify(service).dashboard(eq("200"), eq(query));
+    void platformSummaryQueriesAllCustomers() {
+        controller.summary(user(0L, "PLATFORM"), query);
+        verify(service).dashboard(eq(null), eq(query));
     }
 
     @Test
@@ -43,7 +43,7 @@ class InventoryQueryControllerTest {
         InventoryQueryRequests.PositionQuery positionQuery =
             new InventoryQueryRequests.PositionQuery(null, null, null);
         assertThrows(ResponseStatusException.class,
-            () -> controller.positions(null, null, 1L, positionQuery));
+            () -> controller.positions(null, 1L, positionQuery));
     }
 
     private static AuthenticatedUser user(long customerId, String appCode) {

lastleg-service/src/test/java/com/baiyue/lastleg/inventory/query/service/InventoryQueryServiceTest.java

@@ -65,6 +65,16 @@ class InventoryQueryServiceTest {
         verify(mapper).balances("100", query, 0, 20);
     }
 
+    @Test
+    void platformBalancePagePassesNoCustomerFilter() {
+        InventoryQueryRequests.BalanceQuery query = balanceQuery(null);
+        when(mapper.countBalances(null, query)).thenReturn(0L);
+
+        service.balances(null, query);
+
+        verify(mapper).countBalances(null, query);
+    }
+
     @Test
     void unknownStatusIsRejectedBeforeDatabaseQuery() {
         InventoryQueryRequests.BalanceQuery query = balanceQuery("DAMAGED");
@@ -102,6 +112,20 @@ class InventoryQueryServiceTest {
         assertEquals(7L, result.totalPackages());
     }
 
+    @Test
+    void platformPositionDetailDerivesCustomerFromBalance() {
+        InventoryQueryRequests.PositionQuery query = new InventoryQueryRequests.PositionQuery(null, null, null);
+        InventoryBalance balance = new InventoryBalance();
+        balance.setId(99L);
+        balance.setCustomerId("200");
+        when(mapper.findBalance(99L)).thenReturn(balance);
+        when(mapper.positions("200", 99L, query)).thenReturn(List.of());
+
+        service.positions(null, 99L, query);
+
+        verify(mapper).positions("200", 99L, query);
+    }
+
     @Test
     void reversedLedgerDateRangeIsRejected() {
         InventoryQueryRequests.LedgerQuery query = new InventoryQueryRequests.LedgerQuery(