/// <summary>
/// Connect a customer LN node to the merchant LN node
/// </summary>
public void PrepareLightning(LightningConnectionType lndBackend)
{
ILightningInvoiceClient client = MerchantCharge.Client;
if (lndBackend == LightningConnectionType.LndREST)
{
client = MerchantLnd.Client;
}
PrepareLightningAsync(client).GetAwaiter().GetResult();
}
/// <summary>
/// Connect a customer LN node to the merchant LN node
/// </summary>
/// <returns></returns>
private async Task PrepareLightningAsync(ILightningInvoiceClient client)
{
bool awaitingLocking = false;
while (true)
{
var merchantInfo = await WaitLNSynched(client, CustomerLightningD, MerchantLightningD);
var peers = await CustomerLightningD.ListPeersAsync();
var filteringToTargetedPeers = peers.Where(a => a.Id == merchantInfo.NodeId);
var channel = filteringToTargetedPeers
.SelectMany(p => p.Channels)
.Where(c => !SKIPPED_STATES.Contains(c.State ?? ""))
.FirstOrDefault();
switch (channel?.State)
{
case null:
var address = await CustomerLightningD.NewAddressAsync();
await ExplorerNode.SendToAddressAsync(address, Money.Coins(0.5m));
ExplorerNode.Generate(1);
await WaitLNSynched(client, CustomerLightningD, MerchantLightningD);
await Task.Delay(1000);
var merchantNodeInfo = new NodeInfo(merchantInfo.NodeId, merchantInfo.Address, merchantInfo.P2PPort);
await CustomerLightningD.ConnectAsync(merchantNodeInfo);
await CustomerLightningD.FundChannelAsync(merchantNodeInfo, Money.Satoshis(16777215));
break;
case "CHANNELD_AWAITING_LOCKIN":
ExplorerNode.Generate(awaitingLocking ? 1 : 10);
await WaitLNSynched(client, CustomerLightningD, MerchantLightningD);
awaitingLocking = true;
break;
case "CHANNELD_NORMAL":
return;
default:
throw new NotSupportedException(channel?.State ?? "");
}
}
}
private async Task <LightningNodeInformation> WaitLNSynchedCore(int blockCount, ILightningInvoiceClient client)
{
var merchantInfo = await client.GetInfo();
if (merchantInfo.BlockHeight == blockCount)
{
return(merchantInfo);
}
return(null);
}
