lnworker.num_sats_can_send should not return negative values

5 years ago · f9ae47eb99
1 changed files with 1 additions and 0 deletions
--- a/electrum/lnworker.py
+++ b/electrum/lnworker.py
@ -1940,6 +1940,7 @@ class LNWallet(LNWorker):
        fee_proportional_millionths = TRAMPOLINE_FEES[3]['fee_proportional_millionths']
        # inverse of fee_for_edge_msat
        can_send_minus_fees = (can_send - fee_base_msat) * 1_000_000 // ( 1_000_000 + fee_proportional_millionths)
+        can_send_minus_fees = max(0, can_send_minus_fees)
        return Decimal(can_send_minus_fees) / 1000

    def num_sats_can_receive(self) -> Decimal: