Handle expired invoices

src/i18n/en/translations.ts

@@ -137,6 +137,7 @@ export default {
         error_clipboard: "Clipboard not supported",
         error_keysend: "Keysend failed",
         error_LNURL: "LNURL Pay failed",
+        error_expired: "Invoice is expired",
         payment_pending: "Payment pending",
         payment_pending_description:
             "It's taking a while, but it's possible this payment may still go through. Please check 'Activity' for the current status.",

src/routes/Send.tsx

@@ -446,6 +446,11 @@ export function Send() {
         state.mutiny_wallet
             ?.decode_invoice(source.invoice!)
             .then((invoice) => {
+                if (invoice.expire <= Date.now() / 1000) {
+                    navigate("/search");
+                    throw new Error(i18n.t("send.error_expired"));
+                }
+
                 if (invoice?.amount_sats) {
                     setAmountSats(invoice.amount_sats);
                     setIsAmtEditable(false);