add stat

lib/api.dart

@@ -102,6 +102,11 @@ class API {
         {"uuid": transaction, "destination": destination, "price": price});
   }
 
+  Future<ItemVariantStat> getStat(String item, String variant) async {
+    return ItemVariantStat(
+        jsonDecode(await getRequest("$instance/item/$item/$variant/stat")));
+  }
+
   String getImageURL(String item) {
     return "$instance/$item/image";
   }
@@ -184,3 +189,13 @@ class ConsumeInfo {
     timestamp = json["timestamp"];
   }
 }
+
+class ItemVariantStat {
+  late int amount;
+  late double total_price;
+
+  ItemVariantStat(Map<String, dynamic> json) {
+    amount = json["amount"];
+    total_price = json["total_price"];
+  }
+}

lib/main.dart

@@ -15,7 +15,8 @@ class MyApp extends StatelessWidget {
     return MaterialApp(
       title: 'CDB',
       theme: ThemeData(
-        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
+        colorScheme: ColorScheme.fromSeed(
+            seedColor: Colors.deepPurple, brightness: Brightness.dark),
         useMaterial3: true,
       ),
       home: const MyHomePage(),

lib/pages/itemview.dart

@@ -34,7 +34,7 @@ class _ItemViewState extends State<ItemView> {
                   widget.item.name,
                   style: const TextStyle(fontWeight: FontWeight.bold),
                 ),
-                Text(widget.item.category)
+                Text(widget.item.category),
               ],
             )
           ],
@@ -42,7 +42,29 @@ class _ItemViewState extends State<ItemView> {
         const SizedBox(height: 10),
         Row(
             children: widget.item.variants.entries.map((entry) {
-          return Text(entry.value.name);
+          return Column(children: [
+            Text(
+              entry.value.name,
+              style: TextStyle(fontWeight: FontWeight.bold),
+            ),
+            FutureBuilder(
+              future: API().getStat(widget.item.id, entry.key),
+              builder: (context, snapshot) {
+                if (!snapshot.hasData) {
+                  return CircularProgressIndicator();
+                }
+
+                var stat = snapshot.data!;
+
+                return Column(
+                  children: [
+                    Text("Amount: ${stat.amount}"),
+                    Text("Total Cost: ${stat.total_price}")
+                  ],
+                );
+              },
+            )
+          ]);
         }).toList()),
         FutureBuilder(
           future: API().getInventory(widget.item.id),