const constructure

lib/presentation/pages/refund/widgets/refund_left_panel.dart

@@ -15,14 +15,14 @@ class RefundLeftPanel extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return Container(
-      decoration: BoxDecoration(color: AppColor.white),
+      decoration: const BoxDecoration(color: AppColor.white),
       child: Column(
         children: [
           PageTitle(title: 'Refund Pesanan', subtitle: state.order.orderNumber),
           _buildInfo(),
           Expanded(
             child: ListView.builder(
-              padding: EdgeInsets.symmetric(horizontal: 16),
+              padding: const EdgeInsets.symmetric(horizontal: 16),
               itemCount: state.order.orderItems.length,
               itemBuilder: (context, index) {
                 return _buildOrderItem(state.order.orderItems[index]);
@@ -37,7 +37,7 @@ class RefundLeftPanel extends StatelessWidget {
 
   Widget _buildOrderItem(OrderItem item) {
     return Container(
-      padding: EdgeInsets.symmetric(vertical: 12),
+      padding: const EdgeInsets.symmetric(vertical: 12),
       child: Column(
         children: [
           Row(
@@ -80,7 +80,7 @@ class RefundLeftPanel extends StatelessWidget {
             ],
           ),
           if ((item.paidQuantity) > 1) ...[
-            SpaceHeight(6),
+            const SpaceHeight(6),
             Align(
               alignment: Alignment.centerRight,
               child: Container(
@@ -132,7 +132,7 @@ class RefundLeftPanel extends StatelessWidget {
   Container _buildInfo() {
     return Container(
       padding: const EdgeInsets.all(16.0),
-      decoration: BoxDecoration(
+      decoration: const BoxDecoration(
         border: Border(bottom: BorderSide(color: AppColor.border)),
       ),
       child: Column(
@@ -177,8 +177,8 @@ class RefundLeftPanel extends StatelessWidget {
 
   Container _buildFooterSummary() {
     return Container(
-      padding: EdgeInsets.all(16),
-      decoration: BoxDecoration(
+      padding: const EdgeInsets.all(16),
+      decoration: const BoxDecoration(
         border: Border(top: BorderSide(color: AppColor.border)),
       ),
       child: Column(
@@ -187,19 +187,19 @@ class RefundLeftPanel extends StatelessWidget {
             title: 'Subtotal',
             value: state.order.subtotal.currencyFormatRpV2,
           ),
-          SpaceHeight(4),
+          const SpaceHeight(4),
           _buildSummaryItem(
             title: 'Pajak',
             value: state.order.taxAmount.currencyFormatRpV2,
           ),
-          SpaceHeight(4),
+          const SpaceHeight(4),
           _buildSummaryItem(
             title: 'Diskon',
             value: state.order.discountAmount.currencyFormatRpV2,
           ),
-          SpaceHeight(8),
-          DashedDivider(color: AppColor.border),
-          SpaceHeight(8),
+          const SpaceHeight(8),
+          const DashedDivider(color: AppColor.border),
+          const SpaceHeight(8),
           _buildSummaryItem(
             title: 'Total Dibayar',
             value: state.order.totalAmount.currencyFormatRpV2,

lib/presentation/pages/refund/widgets/refund_reasong_tile.dart

@@ -19,7 +19,7 @@ class RefundReasonTile extends StatelessWidget {
     return GestureDetector(
       onTap: onTap,
       child: AnimatedContainer(
-        duration: Duration(milliseconds: 300),
+        duration: const Duration(milliseconds: 300),
         decoration: BoxDecoration(
           color: isSelected ? reason.color.withOpacity(0.2) : Colors.grey[100],
           borderRadius: BorderRadius.circular(16),
@@ -36,7 +36,7 @@ class RefundReasonTile extends StatelessWidget {
               color: isSelected ? reason.color : Colors.grey[600],
               size: 20,
             ),
-            SpaceHeight(4),
+            const SpaceHeight(4),
             Text(
               reason.value,
               style: TextStyle(

lib/presentation/pages/refund/widgets/refund_right_panel.dart

@@ -41,7 +41,7 @@ class _RefundRightPanelState extends State<RefundRightPanel> {
       children: [
         Expanded(
           child: SingleChildScrollView(
-            padding: EdgeInsets.all(16),
+            padding: const EdgeInsets.all(16),
             child: Column(
               crossAxisAlignment: CrossAxisAlignment.start,
               children: [
@@ -52,10 +52,10 @@ class _RefundRightPanelState extends State<RefundRightPanel> {
                     color: AppColor.textPrimary,
                   ),
                 ),
-                SpaceHeight(16),
+                const SpaceHeight(16),
                 Container(
                   width: context.deviceWidth,
-                  padding: EdgeInsets.all(16),
+                  padding: const EdgeInsets.all(16),
                   decoration: BoxDecoration(
                     color: AppColor.white,
                     borderRadius: BorderRadius.circular(16),
@@ -70,16 +70,17 @@ class _RefundRightPanelState extends State<RefundRightPanel> {
                           color: AppColor.primary,
                         ),
                       ),
-                      SpaceHeight(8),
+                      const SpaceHeight(8),
                       GridView.builder(
                         shrinkWrap: true,
-                        physics: NeverScrollableScrollPhysics(),
-                        gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
-                          crossAxisCount: 3,
-                          crossAxisSpacing: 12,
-                          mainAxisSpacing: 12,
-                          childAspectRatio: 2.5,
-                        ),
+                        physics: const NeverScrollableScrollPhysics(),
+                        gridDelegate:
+                            const SliverGridDelegateWithFixedCrossAxisCount(
+                              crossAxisCount: 3,
+                              crossAxisSpacing: 12,
+                              mainAxisSpacing: 12,
+                              childAspectRatio: 2.5,
+                            ),
                         itemCount: refundReasons.length,
                         itemBuilder: (context, index) {
                           final reason = refundReasons[index];
@@ -99,7 +100,7 @@ class _RefundRightPanelState extends State<RefundRightPanel> {
                       ),
                       if (widget.state.refundReason != null &&
                           widget.state.refundReason!.value == 'Lainnya') ...[
-                        SpaceHeight(8),
+                        const SpaceHeight(8),
                         AppTextFormField(
                           label: 'Masukkan Alasan',
                           controller: reasonController,
@@ -122,7 +123,7 @@ class _RefundRightPanelState extends State<RefundRightPanel> {
   Widget _buildBottom() {
     return Container(
       padding: const EdgeInsets.all(16),
-      decoration: BoxDecoration(color: AppColor.white),
+      decoration: const BoxDecoration(color: AppColor.white),
       child: Column(
         mainAxisSize: MainAxisSize.min,
         children: [
@@ -145,9 +146,9 @@ class _RefundRightPanelState extends State<RefundRightPanel> {
               ),
             ],
           ),
-          SpaceHeight(8),
-          DashedDivider(color: AppColor.border),
-          SpaceHeight(16),
+          const SpaceHeight(8),
+          const DashedDivider(color: AppColor.border),
+          const SpaceHeight(16),
           Row(
             children: [
               Expanded(
@@ -156,7 +157,7 @@ class _RefundRightPanelState extends State<RefundRightPanel> {
                   label: 'Batal',
                 ),
               ),
-              SpaceWidth(16),
+              const SpaceWidth(16),
               Expanded(
                 child: AppElevatedButton.filled(
                   onPressed: () {