chore(wake_on_lan): refactor wake on LAN integration

[skip ci]

lib/api/wake_on_lan/platform/wake_on_lan_html.dart

@@ -0,0 +1,5 @@
+import 'package:lunasea/api/wake_on_lan/wake_on_lan.dart';
+
+bool isPlatformSupported() => false;
+LunaWakeOnLAN getWakeOnLAN() =>
+    throw UnsupportedError('LunaWakeOnLAN unsupported');

lib/api/wake_on_lan/platform/wake_on_lan_io.dart

@@ -0,0 +1,36 @@
+import 'package:lunasea/api/wake_on_lan/wake_on_lan.dart';
+import 'package:lunasea/database/models/profile.dart';
+import 'package:lunasea/vendor.dart';
+import 'package:lunasea/widgets/ui.dart';
+import 'package:lunasea/system/logger.dart';
+import 'package:wake_on_lan/wake_on_lan.dart';
+
+bool isPlatformSupported() => true;
+LunaWakeOnLAN getWakeOnLAN() => IO();
+
+class IO implements LunaWakeOnLAN {
+  @override
+  Future<void> wake() async {
+    LunaProfile profile = LunaProfile.current;
+    try {
+      final ip = IPv4Address(profile.wakeOnLANBroadcastAddress);
+      final mac = MACAddress(profile.wakeOnLANMACAddress);
+      return WakeOnLAN(ip, mac).wake().then((_) {
+        showLunaSuccessSnackBar(
+          title: 'wake_on_lan.MagicPacketSent'.tr(),
+          message: 'wake_on_lan.MagicPacketSentMessage'.tr(),
+        );
+      });
+    } catch (error, stack) {
+      LunaLogger().error(
+        'Failed to send wake on LAN magic packet',
+        error,
+        stack,
+      );
+      showLunaErrorSnackBar(
+        title: 'wake_on_lan.MagicPacketFailedToSend'.tr(),
+        error: error,
+      );
+    }
+  }
+}

lib/api/wake_on_lan/platform/wake_on_lan_stub.dart

@@ -0,0 +1,5 @@
+import 'package:lunasea/api/wake_on_lan/wake_on_lan.dart';
+
+bool isPlatformSupported() => false;
+LunaWakeOnLAN getWakeOnLAN() =>
+    throw UnsupportedError('LunaWakeOnLAN unsupported');

lib/api/wake_on_lan/wake_on_lan.dart

@@ -0,0 +1,11 @@
+// ignore: always_use_package_imports
+import 'platform/wake_on_lan_stub.dart'
+    if (dart.library.io) 'platform/wake_on_lan_io.dart'
+    if (dart.library.html) 'platform/wake_on_lan_html.dart';
+
+abstract class LunaWakeOnLAN {
+  static bool get isSupported => isPlatformSupported();
+  factory LunaWakeOnLAN() => getWakeOnLAN();
+
+  Future<void> wake();
+}