client/dart: add simple cli test tool

1 files changed, 102 insertions, 0 deletions

diff --git a/client/dart/bin/space_light_cli.dart b/client/dart/bin/space_light_cli.dart
new file mode 100644
index 0000000..83b5999
--- /dev/null
+++ b/client/dart/bin/space_light_cli.dart
@@ -0,0 +1,102 @@
+/*
+ * Simple cli BLE test client
+ *
+ * Copyright (C) 2024 Bernhard Guillon <Bernhard.Guillon@begu.org>
+ *
+ * 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 2
+ * 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * SPDX: GPL-2.0-or-later
+ * https://spdx.org/licenses/GPL-2.0-or-later.html
+ */
+
+import 'package:bluez/bluez.dart';
+import 'dart:io';
+
+void main(List<String> arguments) async {
+
+  if (arguments.length < 1) {
+    print("usage: space_light RGBCW in hex with");
+    print("each of    RGB 0..FF");
+    print("each of    CW  0..64");
+    print("example: space_light 0xFF,0x10,0xBA,0x10,0x20");
+    exit(-1);
+  }
+
+  List<int> data = [];
+  for(var c in arguments[0].split(',')) {
+    data.add(int.parse(c.split('x').last, radix: 16));
+  }
+
+  const String address = "8D:FE:5B:68:D6:D9";
+  const String service_uuid = "00000000-0000-1000-8000-00805f9b34fb";
+  const String characteristic_uuid = "00000001-0000-1001-8001-00805f9b07d0";
+
+  var client = BlueZClient();
+  await client.connect();
+
+
+  if (client.adapters.isEmpty) {
+    print('No Bluetooth adapters found');
+    await client.close();
+    exit(-1);
+  }
+  var adapter = client.adapters[0];
+
+  // FIXME: implement pairing without we have to scan to make
+  //        the device known to hci0 ^^
+  print('Searching for devices on ${adapter.name}...');
+  for (var device in client.devices) {
+    print('  ${device.address} ${device.name}');
+  }
+  client.deviceAdded
+      .listen((device) => print('  ${device.address} ${device.name}'));
+
+  await adapter.startDiscovery();
+  await Future.delayed(Duration(seconds: 1));
+  await adapter.stopDiscovery();
+
+  // FIXME: use the device from the scan but as we want to get rid of it anyways keep as is
+  var dev = client.devices.where((device) => device.address == address);
+  // TODO: find out if there is something like defer or RAII
+  if (dev.isEmpty) {
+    print('Device $address not available');
+    await client.close();
+    exit(-1);
+  }
+  try {
+    await dev.first.connect();
+  }
+  catch(e) {
+    print("error connecting..");
+  }
+
+  var service = dev.first.gattServices.where((service) => service.uuid.toString() == service_uuid);
+  // TODO: find out if there is something like defer or RAII
+  if (service.isEmpty) {
+    print('service $address not available');
+    await client.close();
+    exit(-1);
+  }
+  var characteristic = service.first.characteristics.where((characteristic) => characteristic.uuid.toString() == characteristic_uuid);
+  // TODO: find out if there is something like defer or RAII
+  if (characteristic.isEmpty) {
+    print('characteristic $characteristic_uuid not available');
+    await client.close();
+    exit(-1);
+  }
+  print("Sending data...");
+  await characteristic.first.writeValue(data);
+  exit(0);
+}