Add UB motive listing, and intergrate into View

1 files changed, 76 insertions, 0 deletions

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 {}
+}