Fixes for olympus swaps

src/routes/SwapLightning.tsx

@@ -47,6 +47,7 @@ export function SwapLightning() {
     );
 
     const [amountSats, setAmountSats] = createSignal(0n);
+    const [invoice, setInvoice] = createSignal("");
     const [feeSats, setFeeSats] = createSignal(0n);
     const [maxFederationBalanceBeforeSwap, setMaxFederationBalanceBeforeSwap] =
         createSignal(0n);
@@ -69,15 +70,11 @@ export function SwapLightning() {
             setLoading(true);
             setFeeEstimateWarning(undefined);
 
-            if (isMax()) {
-                const result = await sw.sweep_federation_balance(undefined);
-
+            const result = await sw.sweep_federation_balance_to_invoice(
+                undefined,
+                invoice()
+            );
             setSweepResult({ result: result });
-            } else {
-                const result = await sw.sweep_federation_balance(amountSats());
-
-                setSweepResult({ result: result });
-            }
 
             await vibrateSuccess();
         } catch (e) {
@@ -129,12 +126,20 @@ export function SwapLightning() {
             setLoading(true);
             setFeeEstimateWarning(undefined);
 
-            const fee = await sw.estimate_sweep_federation_fee(
+            const mutinyInvoice = await sw.create_sweep_federation_invoice(
                 isMax() ? undefined : amountSats()
             );
 
-            if (fee) {
-                setFeeSats(fee);
+            if (mutinyInvoice.bolt11) {
+                setInvoice(mutinyInvoice.bolt11);
+            } else {
+                console.error("No invoice created");
+                // this should never happen
+                throw new Error("No invoice created");
+            }
+
+            if (mutinyInvoice.fees_paid) {
+                setFeeSats(mutinyInvoice.fees_paid);
             }
             setMaxFederationBalanceBeforeSwap(calculateMaxFederation());
 

src/routes/Transfer.tsx

@@ -85,24 +85,24 @@ export function Transfer() {
             if (!fromFed()) throw new Error("No from federation");
             if (!toFed()) throw new Error("No to federation");
 
-            if (isMax()) {
-                const result = await sw.sweep_federation_balance(
-                    undefined,
+            const mutinyInvoice = await sw.create_sweep_federation_invoice(
+                isMax() ? undefined : amountSats(),
                 fromFed()?.federation_id,
                 toFed()?.federation_id
             );
 
-                setTransferResult({ result: result });
-            } else {
-                const result = await sw.sweep_federation_balance(
-                    amountSats(),
-                    fromFed()?.federation_id,
-                    toFed()?.federation_id
-                );
-
-                setTransferResult({ result: result });
+            if (!mutinyInvoice.bolt11) {
+                // this should never happen
+                throw new Error("No invoice created");
             }
 
+            const result = await sw.sweep_federation_balance_to_invoice(
+                fromFed()?.federation_id,
+                mutinyInvoice.bolt11
+            );
+
+            setTransferResult({ result: result });
+
             await vibrateSuccess();
         } catch (e) {
             const error = eify(e);

src/workers/walletWorker.ts

@@ -1588,18 +1588,17 @@ export async function estimate_sweep_channel_open_fee(
 
 /**
  * Sweep the federation balance into a lightning channel
- * @param {bigint | undefined} [amount]
+ * @param {string | undefined} [from_federation_id]
+ * @param {string} [invoice]
  * @returns {Promise<FedimintSweepResult>}
  */
-export async function sweep_federation_balance(
-    amount?: bigint,
-    from_federation_id?: string,
-    to_federation_id?: string
+export async function sweep_federation_balance_to_invoice(
+    from_federation_id: string | undefined,
+    invoice: string
 ): Promise<FedimintSweepResult> {
-    const result = await wallet!.sweep_federation_balance(
-        amount,
+    const result = await wallet!.sweep_federation_balance_to_invoice(
         from_federation_id,
-        to_federation_id
+        invoice
     );
     return { ...result.value } as FedimintSweepResult;
 }
@@ -1607,12 +1606,21 @@ export async function sweep_federation_balance(
 /**
  * Estimate the fee before trying to sweep from federation
  * @param {bigint | undefined} [amount]
- * @returns {Promise<bigint | undefined>}
+ * @param {string | undefined} [from_federation_id]
+ * @param {string | undefined} [to_federation_id]
+ * @returns {Promise<MutinyInvoice>}
  */
-export async function estimate_sweep_federation_fee(
-    amount?: bigint
-): Promise<bigint | undefined> {
-    return await wallet!.estimate_sweep_federation_fee(amount);
+export async function create_sweep_federation_invoice(
+    amount?: bigint,
+    from_federation_id?: string,
+    to_federation_id?: string
+): Promise<MutinyInvoice> {
+    const invoice = await wallet!.create_sweep_federation_invoice(
+        amount,
+        from_federation_id,
+        to_federation_id
+    );
+    return destructureInvoice(invoice);
 }
 
 export async function parse_params(params: string): Promise<PaymentParams> {