From b1526aec0849fdc710f98540d2928d4fe6ee3959 Mon Sep 17 00:00:00 2001
From: uvok
Date: Fri, 1 Aug 2025 15:47:43 +0200
Subject: Add UB motive listing, and intergrate into View

---
 lib/model/badge_motive_selection_factory.dart      | 29 +++++++++
 .../universal_blue_motive_selection.dart           | 76 ++++++++++++++++++++++
 lib/view_model/badge_motive_view_model.dart        |  6 +-
 lib/widgets/device_details.dart                    | 15 ++++-
 4 files changed, 121 insertions(+), 5 deletions(-)
 create mode 100644 lib/model/badge_motive_selection_factory.dart
 create mode 100644 lib/model/motive_selection/universal_blue_motive_selection.dart

diff --git a/lib/model/badge_motive_selection_factory.dart b/lib/model/badge_motive_selection_factory.dart
new file mode 100644
index 0000000..32678a1
--- /dev/null
+++ b/lib/model/badge_motive_selection_factory.dart
@@ -0,0 +1,29 @@
+// Copyright (C) 2025, uvok cheetah
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+import 'package:uvok_epaper_badge/model/device/device.dart';
+import 'package:uvok_epaper_badge/model/device/universal_ble_device.dart';
+import 'package:uvok_epaper_badge/model/motive_selection/badge_motive_selection.dart';
+import 'package:uvok_epaper_badge/model/motive_selection/mock_badge_motive_selection.dart';
+import 'package:uvok_epaper_badge/model/motive_selection/universal_blue_motive_selection.dart';
+
+class BadgeMotiveSelectionFactory {
+  static BadgeMotiveSelection createBadgeMotiveSelection(Device device) {
+    if (device is UniversalBleDevice) {
+      return UniversalBlueMotiveSelection(device: device);
+    }
+    return MockBadgeMotiveSelection();
+  }
+}
diff --git a/lib/model/motive_selection/universal_blue_motive_selection.dart b/lib/model/motive_selection/universal_blue_motive_selection.dart
new file mode 100644
index 0000000..86429b6
--- /dev/null
+++ b/lib/model/motive_selection/universal_blue_motive_selection.dart
@@ -0,0 +1,76 @@
+// Copyright (C) 2025, uvok cheetah
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+import 'dart:convert';
+
+import 'package:universal_ble/universal_ble.dart';
+import 'package:uvok_epaper_badge/model/badge_motive.dart';
+import 'package:uvok_epaper_badge/model/device/universal_ble_device.dart';
+import 'package:uvok_epaper_badge/model/motive_selection/badge_motive_selection.dart';
+
+class UniversalBlueMotiveSelection implements BadgeMotiveSelection {
+  final UniversalBleDevice _device;
+  final String _badgeService = "ca260000-b4bb-46b2-bd06-b7b7a61ea990";
+  final String _currentMotiveCharacteristic =
+      "ca260001-b4bb-46b2-bd06-b7b7a61ea990";
+  final String _availableMotivesCharacteristic =
+      "ca260002-b4bb-46b2-bd06-b7b7a61ea990";
+
+  List<BadgeMotive> _cachedMotives = [];
+
+  UniversalBlueMotiveSelection({required UniversalBleDevice device})
+    : _device = device;
+
+  @override
+  Future<BadgeMotive> getCurrentMotive() async {
+    if (_cachedMotives.isEmpty) {
+      return BadgeMotive(-1, "No motives");
+    }
+    return BadgeMotive(-1, "Unspecified motive");
+  }
+
+  @override
+  Future<List<BadgeMotive>> getMotives() async {
+    bool gotMotives = false;
+    if (await _device.device.connectionState == BleConnectionState.connected) {
+      var c = await _device.device.getCharacteristic(
+        _availableMotivesCharacteristic,
+        service: _badgeService,
+      );
+      var val = await c.read();
+      var templates = ascii.decode(val);
+      _cachedMotives = templates
+          .split(";")
+          .where((s) => s.isNotEmpty)
+          .map((String s) {
+            List<String> parts = s.split("-");
+            if (parts.length != 2) {
+              return BadgeMotive(-1, "Invalid value");
+            }
+            return BadgeMotive(int.tryParse(parts[0]) ?? -1, parts[1]);
+          })
+          .toList(growable: false);
+      gotMotives = true;
+    }
+    if (!gotMotives) {
+      _cachedMotives = [BadgeMotive(-1, "Failed fetching motives")];
+    }
+
+    return _cachedMotives;
+  }
+
+  @override
+  Future<void> setCurrentMotive(BadgeMotive motive) async {}
+}
diff --git a/lib/view_model/badge_motive_view_model.dart b/lib/view_model/badge_motive_view_model.dart
index 6746827..75bd5b0 100644
--- a/lib/view_model/badge_motive_view_model.dart
+++ b/lib/view_model/badge_motive_view_model.dart
@@ -17,15 +17,17 @@ import 'package:flutter/foundation.dart';
 import 'package:logger/logger.dart';
 import 'package:uvok_epaper_badge/model/badge_motive.dart';
 import 'package:uvok_epaper_badge/model/motive_selection/badge_motive_selection.dart';
-import 'package:uvok_epaper_badge/model/motive_selection/mock_badge_motive_selection.dart';
 
 Logger logger = Logger();
 
 class BadgeMotiveViewModel extends ChangeNotifier {
-  final BadgeMotiveSelection _motivSelect = MockBadgeMotiveSelection();
+  final BadgeMotiveSelection _motivSelect;
   List<BadgeMotive> _motives = [];
   bool _busy = false;
 
+  BadgeMotiveViewModel({required BadgeMotiveSelection motivSelect})
+    : _motivSelect = motivSelect;
+
   bool get allowSelection => !_busy;
   List<BadgeMotive> get motives => _motives;
 
diff --git a/lib/widgets/device_details.dart b/lib/widgets/device_details.dart
index f612d96..17319f4 100644
--- a/lib/widgets/device_details.dart
+++ b/lib/widgets/device_details.dart
@@ -15,10 +15,12 @@
 
 import 'dart:ui';
 
+import 'package:uvok_epaper_badge/model/badge_motive_selection_factory.dart';
 import 'package:uvok_epaper_badge/model/device/device.dart';
 import 'package:flutter/material.dart';
 import 'package:logger/logger.dart';
 import 'package:uvok_epaper_badge/model/connection/device_connection.dart';
+import 'package:uvok_epaper_badge/model/motive_selection/badge_motive_selection.dart';
 import 'package:uvok_epaper_badge/view_model/badge_motive_view_model.dart';
 import 'package:uvok_epaper_badge/widgets/badge_motive_list.dart';
 
@@ -28,11 +30,14 @@ class DeviceDetailsScreen extends StatefulWidget {
   final Device device;
   final DeviceConnection deviceConnection;
 
-  const DeviceDetailsScreen({
+  final BadgeMotiveSelection _motiveSelection;
+
+  DeviceDetailsScreen({
     super.key,
     required this.device,
     required this.deviceConnection,
-  });
+  }) : _motiveSelection =
+           BadgeMotiveSelectionFactory.createBadgeMotiveSelection(device);
 
   @override
   State<StatefulWidget> createState() {
@@ -72,7 +77,11 @@ class DeviceDetailsState extends State<DeviceDetailsScreen> {
               children: [
                 SizedBox(height: 20),
                 Text("Connection state: ${value.toString()}"),
-                BadgeMotiveList(motiveVM: BadgeMotiveViewModel()),
+                BadgeMotiveList(
+                  motiveVM: BadgeMotiveViewModel(
+                    motivSelect: widget._motiveSelection,
+                  ),
+                ),
               ],
             );
           },
-- 
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