micronode

Plugins/BTCPayServer.Plugins.MicroNode/MicroLightningConnectionStringHandler.cs

@@ -0,0 +1,67 @@
+using System;
+using BTCPayServer.Lightning;
+using Microsoft.Extensions.DependencyInjection;
+using NBitcoin;
+
+namespace BTCPayServer.Plugins.MicroNode;
+
+public class MicroLightningConnectionStringHandler : ILightningConnectionStringHandler
+{
+    private readonly IServiceProvider _serviceProvider;
+    private readonly BTCPayNetworkProvider _networkProvider;
+
+    public MicroLightningConnectionStringHandler(
+        IServiceProvider serviceProvider,
+        BTCPayNetworkProvider networkProvider)
+    {
+        _serviceProvider = serviceProvider;
+        _networkProvider = networkProvider;
+    }
+
+    public ILightningClient Create(string connectionString, Network network, out string error)
+    {
+        var kv = LightningConnectionStringHelper.ExtractValues(connectionString, out var type);
+        if (type != "micro" || kv is null)
+        {
+            error = null;
+            return null;
+        }
+
+        if (_networkProvider.BTC.NBitcoinNetwork != network)
+        {
+            error = "Invalid network";
+            return null;
+        }
+
+        if (!kv.TryGetValue("key", out var key))
+        {
+            error = "key is missing";
+            return null;
+        }
+        var microNodeService = _serviceProvider.GetService<MicroNodeService>();
+
+        var settings = microNodeService.GetMasterSettingsFromKey(key).GetAwaiter().GetResult();
+
+        if (settings is null)
+        {
+            error = "key is invalid";
+            return null;
+        }
+
+        if (settings.Value.Item1.Enabled is not true)
+        {
+            error = "MicroBank is not enabled";
+            return null;
+        }
+
+        var lightningClient = microNodeService.GetMasterLightningClient(settings.Value.Item2).GetAwaiter().GetResult();
+        if (lightningClient is null)
+        {
+            error = "Lightning node not available";
+            return null;
+        }
+
+        error = null;
+        return new MicroLightningClient(lightningClient, microNodeService, network, key);
+    }
+}