nwc: pay with nwc if we have it configured

damus/Components/ZapButton.swift

@@ -184,8 +184,13 @@ func send_zap(damus_state: DamusState, event: NostrEvent, lnurl: String, is_cust
         }
         
         DispatchQueue.main.async {
-            let ev = ZappingEvent(is_custom: is_custom, type: .got_zap_invoice(inv), event: event)
-            notify(.zapping, ev)
+            if let url = damus_state.settings.nostr_wallet_connect,
+               let nwc = WalletConnectURL(str: url) {
+                nwc_pay(url: nwc,  pool: damus_state.pool, post: damus_state.postbox, invoice: inv)
+            } else {
+                let ev = ZappingEvent(is_custom: is_custom, type: .got_zap_invoice(inv), event: event)
+                notify(.zapping, ev)
+            }
         }
     }
     

damus/Util/WalletConnect.swift

@@ -77,3 +77,13 @@ func make_wallet_connect_request<T>(req: WalletRequest<T>, to_pk: String, keypai
     }
     return create_encrypted_event(content, to_pk: to_pk, tags: tags, keypair: keypair, created_at: created_at, kind: 23194)
 }
+
+func nwc_pay(url: WalletConnectURL, pool: RelayPool, post: PostBox, invoice: String) {
+    let req = make_wallet_pay_invoice_request(invoice: invoice)
+    guard let ev = make_wallet_connect_request(req: req, to_pk: url.pubkey, keypair: url.keypair) else {
+        return
+    }
+    
+    try? pool.add_relay(url.relay, info: .ephemeral)
+    post.send(ev, to: [url.relay.id], skip_ephemeral: false)
+}