add produce flows

lib/api.dart

@@ -1,4 +1,5 @@
 import 'dart:convert';
+import 'package:cdb_ui/pages/supply.dart';
 import 'package:http/http.dart' as http;
 import 'package:shared_preferences/shared_preferences.dart';
 
@@ -249,7 +250,9 @@ class API {
   }
 
   // /flow/<id>/end
-  Future<List<String>?> endFlow(String id, {Map<String, int>? produced}) async {
+  Future<List<String>?> endFlow(String id, {List<SupplyForm>? produced}) async {
+// todo : update api for supplyform
+
     var resp = jsonDecode(
         await postRequest("$instance/$id/end", {"produced": produced}));
 
@@ -365,6 +368,12 @@ class Price {
     currency = json["currency"];
   }
 
+  Price.fromString(String value) {
+    var priceSplit = value.split(" ");
+    this.value = double.parse(priceSplit[0]);
+    currency = priceSplit[1];
+  }
+
   String format() {
     return "${value.toStringAsFixed(2)} $currency";
   }
@@ -394,6 +403,20 @@ class Transaction {
     consumed = json["consumed"] != null ? ConsumeInfo(json["consumed"]) : null;
     location = json["location"] != null ? Location(json["location"]) : null;
   }
+
+  Transaction.inMemory(String itemID, String variant, String price,
+      String? origin, Location? location, String? note) {
+    uuid = "";
+    item = itemID;
+    variant = variant;
+    this.price = Price.fromString(price);
+    origin = origin;
+    timestamp = 0;
+    consumed = null;
+    expired = false;
+    note = note;
+    location = location;
+  }
 }
 
 class ConsumeInfo {

lib/pages/flow/active_flow_page.dart

@@ -85,6 +85,7 @@ class _ActiveFlowPageState extends State<ActiveFlowPage> {
         children: [
           Text("ID: ${widget.flow.id}"),
           Text("Started since: ${tsFormat(widget.flow.started)}"),
+          if (widget.flow.input != null)
             ...widget.flow.input!.map((x) => Text("Input: $x")).toList(),
           if (widget.flow.done != null) ...[
             Text("Ended: ${tsFormat(widget.flow.done!.ended)}"),

lib/pages/flow/end_flow_page.dart

@@ -1,5 +1,8 @@
+import 'dart:js_interop_unsafe';
+
 import 'package:cdb_ui/api.dart' as API;
 import 'package:cdb_ui/api.dart';
+import 'package:cdb_ui/pages/supply.dart';
 import 'package:cdb_ui/pages/transaction.dart';
 import 'package:flutter/material.dart';
 
@@ -14,7 +17,30 @@ class EndFlowWithProduce extends StatefulWidget {
 }
 
 class _EndFlowWithProduceState extends State<EndFlowWithProduce> {
-  Map<String, int> produces = {};
+  List<SupplyForm> produces = [];
+  late Map<String, Location> locations;
+
+  @override
+  void initState() {
+    super.initState();
+    API.API().getLocations().then(
+      (value) {
+        setState(() {
+          locations = value;
+        });
+      },
+    );
+  }
+
+  refresh() {
+    setState(() {});
+  }
+
+  void addProduced(SupplyForm t) {
+    setState(() {
+      produces.add(t);
+    });
+  }
 
   List<Widget> addProduceButtons() {
     List<Widget> ret = [];
@@ -22,7 +48,21 @@ class _EndFlowWithProduceState extends State<EndFlowWithProduce> {
     for (var i in widget.info.produces!) {
       ret.add(ElevatedButton(
           onPressed: () {
-            // todo : implement adding
+            var (itemID, variant) = API.itemVariant(i);
+            API.API().getItem(itemID).then((item) {
+              Navigator.of(context).push(MaterialPageRoute(
+                builder: (context) {
+                  return SupplyPage(
+                    item,
+                    refresh,
+                    onlyVariants: [variant],
+                    forcePrice: "0.00",
+                    forceOrigin: "flow::${widget.flow.kind}::${widget.flow.id}",
+                    onCreate: addProduced,
+                  );
+                },
+              ));
+            });
           },
           child: Text("Produced $i")));
     }
@@ -48,6 +88,14 @@ class _EndFlowWithProduceState extends State<EndFlowWithProduce> {
           ...addProduceButtons(),
           const Divider(),
           // todo : add produced list
+          ...produces.map((x) {
+            return TransactionCard(
+              x.transaction(locations),
+              () {},
+              onLongPress: (x) {},
+              onTap: (x) {},
+            );
+          }).toList(),
           const SizedBox(
             height: 10,
           ),

lib/pages/flow/flow_note.dart

@@ -9,7 +9,7 @@ class AddNotePage extends StatelessWidget {
 
   AddNotePage(this.flow, this.refresh, {super.key});
 
-  _submit(BuildContext context) {
+  void _submit(BuildContext context) {
     API.API().addNoteToFlow(flow.id, _noteController.text).then((x) {
       refresh();
       Navigator.of(context).pop();
@@ -32,7 +32,7 @@ class AddNotePage extends StatelessWidget {
             height: 14,
           ),
           ElevatedButton(
-              onPressed: _submit(context), child: const Text("Add Note"))
+              onPressed: () => _submit(context), child: const Text("Add Note"))
         ],
       ),
     );

lib/pages/supply.dart

@@ -5,14 +5,26 @@ import 'package:qr_bar_code_scanner_dialog/qr_bar_code_scanner_dialog.dart';
 class SupplyPage extends StatefulWidget {
   final Item item;
   final Function refresh;
+  final List<String>? onlyVariants;
+  final String? forcePrice;
+  final String? forceOrigin;
 
-  const SupplyPage(this.item, this.refresh, {super.key});
+  // callback function for receiving a transaction without creating on the API
+  final Function(SupplyForm)? onCreate;
+
+  const SupplyPage(this.item, this.refresh,
+      {this.onlyVariants,
+      this.onCreate,
+      this.forceOrigin,
+      this.forcePrice,
+      super.key});
 
   @override
   State<SupplyPage> createState() => _SupplyPageState();
 }
 
 class _SupplyPageState extends State<SupplyPage> {
+  late List<String> availableVariants;
   late String variant;
   final _formKey = GlobalKey<FormState>();
   String _selectedOrigin = "";
@@ -23,8 +35,13 @@ class _SupplyPageState extends State<SupplyPage> {
   @override
   void initState() {
     super.initState();
+    availableVariants =
+        widget.onlyVariants ?? widget.item.variants.keys.toList();
+
     variant = widget.item.variants.keys.first;
-    _priceController = TextEditingController(text: "");
+
+    _selectedOrigin = widget.forceOrigin ?? "";
+    _priceController = TextEditingController(text: widget.forcePrice ?? "");
     _noteController = TextEditingController(text: "");
   }
 
@@ -32,6 +49,23 @@ class _SupplyPageState extends State<SupplyPage> {
     if (_formKey.currentState!.validate()) {
       _formKey.currentState!.save();
 
+      if (widget.onCreate != null) {
+        // todo : create shadow transaction
+        var t = SupplyForm(
+            itemID: widget.item.id,
+            variant: variant,
+            price: "${_priceController.text} €",
+            origin: _selectedOrigin,
+            location: _selectedLocation,
+            note: _noteController.text);
+
+        widget.onCreate!(t);
+
+        Navigator.of(context).pop();
+        widget.refresh();
+        return;
+      }
+
       API()
           .supplyItem(widget.item.id, variant, "${_priceController.text} €",
               _selectedOrigin, _selectedLocation, _noteController.text)
@@ -78,10 +112,11 @@ class _SupplyPageState extends State<SupplyPage> {
                         variant = value!;
                       });
                     },
-                    items: widget.item.variants.entries.map((entry) {
+                    items: availableVariants.map((entryKey) {
+                      var entry = widget.item.variants[entryKey]!;
                       return DropdownMenuItem<String>(
-                        value: entry.key,
+                        value: entryKey,
-                        child: Text(entry.value.name),
+                        child: Text(entry.name),
                       );
                     }).toList(),
                     onSaved: (value) {
@@ -92,6 +127,7 @@ class _SupplyPageState extends State<SupplyPage> {
                   const SizedBox(height: 16),
 
                   // Origin Field with Dropdown and Text Input
+                  if (widget.forceOrigin == null)
                     AutocompletedTextField(
                         options: origins,
                         getValue: () => _selectedOrigin,
@@ -115,6 +151,7 @@ class _SupplyPageState extends State<SupplyPage> {
                   const SizedBox(height: 16),
 
                   // Price Field
+                  if (widget.forcePrice == null)
                     TextFormField(
                       decoration: const InputDecoration(labelText: 'Price'),
                       keyboardType: TextInputType.number,
@@ -253,3 +290,37 @@ class AutocompletedTextField extends StatelessWidget {
     );
   }
 }
+
+class SupplyForm {
+  final String itemID;
+  final String variant;
+  final String price;
+  final String? origin;
+  final String? location;
+  final String note;
+
+  factory SupplyForm.fromJson(Map<String, dynamic> json) {
+    return SupplyForm(
+      itemID: json['item'],
+      variant: json['variant'],
+      price: json['price'],
+      origin: json['origin'],
+      location: json['location'],
+      note: json['note'],
+    );
+  }
+
+  SupplyForm({
+    required this.itemID,
+    required this.variant,
+    required this.price,
+    required this.origin,
+    required this.location,
+    required this.note,
+  });
+
+  Transaction transaction(Map<String, Location> locations) {
+    return Transaction.inMemory(itemID, variant, price, origin,
+        location != null ? locations[location!] : null, note);
+  }
+}

lib/pages/transaction.dart

@@ -222,6 +222,7 @@ class TransactionCard extends StatelessWidget {
                       ),
                     ],
                   ),
+                  if (t.timestamp != 0)
                     Text(
                       tsFormat(t.timestamp),
                       style: TextStyle(fontSize: 14, color: Colors.grey[700]),