update

lib/api.dart

@@ -58,6 +58,11 @@ class API {
     return lst as List<dynamic>;
   }
 
+  Future<GlobalItemStat> getGlobalItemStat() async {
+    var resp = jsonDecode(await getRequest("$instance/items/stat"));
+    return GlobalItemStat(resp);
+  }
+
   // /item/<item>/<variant>/unique?<field>
   Future<List<String>> getUniqueField(
       String item, String variant, String field) async {
@@ -112,10 +117,14 @@ class API {
   }
 
   // /item/<item_id>/inventory?<origin>
-  Future<List<Transaction>> getInventory(String item) async {
-    // todo : add origin param
-    var resp = jsonDecode(await getRequest("$instance/item/$item/inventory"))
-        as List<dynamic>;
+  Future<List<Transaction>> getInventory(String item, {String? origin}) async {
+    var url = "$instance/item/$item/inventory";
+
+    if (origin != null) {
+      url += "?origin=$origin";
+    }
+
+    var resp = jsonDecode(await getRequest(url)) as List<dynamic>;
 
     return resp.map((x) => Transaction(x)).toList();
   }
@@ -450,3 +459,15 @@ class FlowDone {
     produced = json["produced"];
   }
 }
+
+class GlobalItemStat {
+  late int item_count;
+  late int total_transactions;
+  late double total_price;
+
+  GlobalItemStat(Map<String, dynamic> json) {
+    item_count = json["item_count"];
+    total_transactions = json["total_transactions"];
+    total_price = json["total_price"];
+  }
+}

lib/main.dart

@@ -29,8 +29,13 @@ class MyApp extends StatelessWidget {
 class StatsPage extends StatelessWidget {
   const StatsPage({super.key});
 
-  Future<(List<MinItem>, List<Transaction>)> _fetchData() async {
-    return (await API().getItemsUnderMin(), await API().getExpiredItems());
+  Future<(List<MinItem>, List<Transaction>, GlobalItemStat)>
+      _fetchData() async {
+    return (
+      await API().getItemsUnderMin(),
+      await API().getExpiredItems(),
+      await API().getGlobalItemStat()
+    );
   }
 
   @override
@@ -50,9 +55,19 @@ class StatsPage extends StatelessWidget {
           var data = snapshot.data!;
           var min = data.$1;
           var expired = data.$2;
+          var global_stat = data.$3;
 
           return Column(
             children: [
+              Card(
+                  child: Column(
+                children: [
+                  Text("Items: ${global_stat.item_count}"),
+                  Text("Inventory: ${global_stat.total_transactions}"),
+                  Text("Price: ${global_stat.total_price} €")
+                ],
+              )),
+
               if (min.isNotEmpty)
                 const ListTile(title: Text("Items under Minimum")),
               ...min.map((item) {

lib/pages/flow.dart

@@ -1,4 +1,4 @@
-import 'package:cdb_ui/api.dart';
+import 'package:cdb_ui/api.dart' as API;
 import 'package:flutter/material.dart';
 
 class FlowsPage extends StatelessWidget {
@@ -7,10 +7,13 @@ class FlowsPage extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     // todo : flows by item produced
+    // todo : list all flow kinds
+    // todo : list currently active
+    // todo : flows by item needed (show only avail)
     return Scaffold(
         appBar: AppBar(title: const Text("Flows")),
         body: FutureBuilder(
-            future: API().getFlows(),
+            future: API.API().getFlows(),
             builder: (ctx, snap) {
               if (!snap.hasData) {
                 return const CircularProgressIndicator();
@@ -34,7 +37,7 @@ class FlowsPage extends StatelessWidget {
 }
 
 class FlowPage extends StatelessWidget {
-  final FlowInfo info;
+  final API.FlowInfo info;
 
   const FlowPage(this.info, {super.key});
 
@@ -64,7 +67,7 @@ class FlowPage extends StatelessWidget {
             ),
           const Divider(),
           FutureBuilder(
-            future: API().getActiveFlowsOf(info.id),
+            future: API.API().getActiveFlowsOf(info.id),
             builder: (context, snapshot) {
               if (!snapshot.hasData) {
                 return const CircularProgressIndicator();
@@ -72,7 +75,15 @@ class FlowPage extends StatelessWidget {
 
               var data = snapshot.data!;
 
-              return ListView(children: data.map((x) => Text(x.id)).toList());
+              return ListView(
+                  children: data
+                      .map((x) => ListTile(
+                          title: Text(x.id),
+                          onTap: () =>
+                              Navigator.of(context).push(MaterialPageRoute(
+                                builder: (context) => ActiveFlowPage(x),
+                              ))))
+                      .toList());
             },
           )
         ],
@@ -80,3 +91,17 @@ class FlowPage extends StatelessWidget {
     );
   }
 }
+
+class ActiveFlowPage extends StatelessWidget {
+  late API.Flow flow;
+
+  ActiveFlowPage(this.flow);
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+        body: Column(
+      children: [],
+    ));
+  }
+}