Create invoice from lightning node if amt is high

mutiny-core/src/lib.rs

@@ -103,6 +103,7 @@ use crate::utils::parse_profile_metadata;
 use mockall::{automock, predicate::*};
 
 const DEFAULT_PAYMENT_TIMEOUT: u64 = 30;
+const MAX_FEDERATION_INVOICE_AMT: u64 = 200_000;
 
 #[cfg_attr(test, automock)]
 pub trait InvoiceHandler {
@@ -1126,18 +1127,16 @@ impl<S: MutinyStorage> MutinyWallet<S> {
         amount: Option<u64>,
         labels: Vec<String>,
     ) -> Result<MutinyInvoice, MutinyError> {
-        let federation_ids = self.list_federation_ids().await?;
+        let amt = amount.map_or(Err(MutinyError::InvalidArgumentsError), Ok)?;
 
-        // Attempt to create federation invoice
-        if !federation_ids.is_empty() {
+        // Attempt to create federation invoice if available and below max amount
+        let federation_ids = self.list_federation_ids().await?;
+        if !federation_ids.is_empty() && amt <= MAX_FEDERATION_INVOICE_AMT {
             let federation_id = &federation_ids[0];
             let fedimint_client = self.federations.read().await.get(federation_id).cloned();
 
             if let Some(client) = fedimint_client {
-                if let Ok(inv) = client
-                    .get_invoice(amount.unwrap_or_default(), labels.clone())
-                    .await
-                {
+                if let Ok(inv) = client.get_invoice(amt, labels.clone()).await {
                     self.storage
                         .set_invoice_labels(inv.bolt11.clone().expect("just created"), labels)?;
                     return Ok(inv);
@@ -1146,10 +1145,9 @@ impl<S: MutinyStorage> MutinyWallet<S> {
         }
 
         // Fallback to node_manager invoice creation if no federation invoice created
-        let inv = self.node_manager.create_invoice(amount).await?;
+        let inv = self.node_manager.create_invoice(Some(amt)).await?;
         self.storage
             .set_invoice_labels(inv.bolt11.clone().expect("just created"), labels)?;
-
         Ok(inv)
     }