More forgiving Wallet Connect interface (nsec or hexes are accepted, relay url is trimmed and cleaned up, if relay doesn't have a wss://, adds one)

app/src/main/java/com/vitorpamplona/amethyst/service/Nip47.kt

@@ -1,10 +1,11 @@
 package com.vitorpamplona.amethyst.ui.note
 
 import android.net.Uri
+import com.vitorpamplona.amethyst.model.HexKey
 import com.vitorpamplona.amethyst.model.decodePublicKey
 import com.vitorpamplona.amethyst.model.toHexKey
 
-data class Nip47URI(val pubKeyHex: String, val relayUri: String?, val secret: String?)
+data class Nip47URI(val pubKeyHex: HexKey, val relayUri: String?, val secret: HexKey?)
 
 // Rename to the corect nip number when ready.
 object Nip47 {

app/src/main/java/com/vitorpamplona/amethyst/ui/note/UpdateZapAmountDialog.kt

@@ -114,23 +114,41 @@ class UpdateZapAmountViewModel : ViewModel() {
         account?.changeZapAmounts(amountSet)
 
         if (walletConnectRelay.text.isNotBlank() && walletConnectPubkey.text.isNotBlank()) {
+            val pubkeyHex = try {
+                decodePublicKey(walletConnectPubkey.text.trim()).toHexKey()
+            } catch (e: Exception) {
+                null
+            }
+
+            val relayUrl = walletConnectRelay.text.ifBlank { null }?.let {
+                var addedWSS =
+                    if (!it.startsWith("wss://") && !it.startsWith("ws://")) "wss://$it" else it
+                if (addedWSS.endsWith("/")) addedWSS = addedWSS.dropLast(1)
+
+                addedWSS
+            }
+
             val unverifiedPrivKey = walletConnectSecret.text.ifBlank { null }
-            val privKey = try {
+            val privKeyHex = try {
                 unverifiedPrivKey?.let { decodePublicKey(it).toHexKey() }
             } catch (e: Exception) {
                 null
             }
 
+            if (pubkeyHex != null) {
                 account?.changeZapPaymentRequest(
                     Nip47URI(
-                    walletConnectPubkey.text,
+                        pubkeyHex,
-                    walletConnectRelay.text.ifBlank { null },
+                        relayUrl,
-                    privKey
+                        privKeyHex
                     )
                 )
             } else {
                 account?.changeZapPaymentRequest(null)
             }
+        } else {
+            account?.changeZapPaymentRequest(null)
+        }
 
         nextAmount = TextFieldValue("")
     }