feat: vss auth setup

Author: ovitrif

app/src/main/java/to/bitkit/env/Env.kt

@@ -40,9 +40,15 @@ internal object Env {
     val vssServerUrl
         get() = when (network) {
             Network.BITCOIN -> TODO("VSS not implemented for mainnet")
+            // Network.REGTEST -> "http://localhost:5050/vss"
             else -> "https://bitkit.stag0.blocktank.to/vss_rs/"
         }
 
+    val lnurlAuthSeverUrl = when (network) {
+        // Network.REGTEST -> "http://localhost:3000/auth"
+        else -> "" // TODO implement LNURL-auth Server for other networks
+    }
+
     val vssStoreId
         get() = when (network) {
             Network.REGTEST -> "bitkit_regtest"

app/src/main/java/to/bitkit/services/LightningService.kt

@@ -113,11 +113,20 @@ class LightningService @Inject constructor(
 
         ServiceQueue.LDK.background {
             node = try {
-                builder.buildWithVssStoreAndFixedHeaders(
-                    vssUrl = Env.vssServerUrl,
-                    storeId = vssStoreId,
-                    fixedHeaders = emptyMap(),
-                )
+                if (Env.lnurlAuthSeverUrl.isNotBlank()) {
+                    builder.buildWithVssStore(
+                        vssUrl = Env.vssServerUrl,
+                        storeId = vssStoreId,
+                        lnurlAuthServerUrl = Env.lnurlAuthSeverUrl,
+                        fixedHeaders = emptyMap(),
+                    )
+                } else {
+                    builder.buildWithVssStoreAndFixedHeaders(
+                        vssUrl = Env.vssServerUrl,
+                        storeId = vssStoreId,
+                        fixedHeaders = emptyMap(),
+                    )
+                }
             } catch (e: BuildException) {
                 throw LdkError(e)
             }