From 92bdf70c7358c47164e62ad9c4715056d6fe148a Mon Sep 17 00:00:00 2001
From: SomberNight <somber.night@protonmail.com>
Date: Fri, 27 Jun 2025 11:24:42 +0000
Subject: [PATCH] fee_policy: separate fallback static fee vs regtest hardcoded
 fee

---
 electrum/fee_policy.py | 3 ++-
 electrum/lnworker.py   | 7 ++++---
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/electrum/fee_policy.py b/electrum/fee_policy.py
index f09f458ca..6c5e53962 100644
--- a/electrum/fee_policy.py
+++ b/electrum/fee_policy.py
@@ -23,6 +23,7 @@ FEERATE_STATIC_VALUES = [1000, 2000, 5000, 10000, 20000, 30000,
 FEERATE_MAX_DYNAMIC = 1500000
 FEERATE_WARNING_HIGH_FEE = 600000
 FEERATE_FALLBACK_STATIC_FEE = 150000
+FEERATE_REGTEST_STATIC_FEE = FEERATE_FALLBACK_STATIC_FEE  # hardcoded fee used on regtest
 FEERATE_DEFAULT_RELAY = 1000
 FEERATE_MAX_RELAY = 50000
 
@@ -218,7 +219,7 @@ class FeePolicy(Logger):
         Note: might return None.
         """
         if self.use_dynamic_estimates and constants.net is constants.BitcoinRegtest:
-            return FEERATE_FALLBACK_STATIC_FEE
+            return FEERATE_REGTEST_STATIC_FEE
 
         if self.method == FeeMethod.FEERATE:
             fee_rate = self.value
diff --git a/electrum/lnworker.py b/electrum/lnworker.py
index 1333a4914..e732cd29c 100644
--- a/electrum/lnworker.py
+++ b/electrum/lnworker.py
@@ -40,7 +40,7 @@ from .util import (
 )
 from .fee_policy import (
     FeePolicy, FEERATE_FALLBACK_STATIC_FEE, FEE_LN_ETA_TARGET, FEE_LN_LOW_ETA_TARGET,
-    FEERATE_PER_KW_MIN_RELAY_LIGHTNING, FEE_LN_MINIMUM_ETA_TARGET
+    FEERATE_PER_KW_MIN_RELAY_LIGHTNING, FEE_LN_MINIMUM_ETA_TARGET, FEERATE_REGTEST_STATIC_FEE
 )
 from .invoices import Invoice, PR_UNPAID, PR_PAID, PR_INFLIGHT, PR_FAILED, LN_EXPIRY_NEVER, BaseInvoice
 from .bitcoin import COIN, opcodes, make_op_return, address_to_scripthash, DummyAddress
@@ -3080,9 +3080,10 @@ class LNWallet(LNWorker):
                 # grows quickly
                 feerate_per_kvbyte = max(feerate_per_kvbyte, 5000)
         else:
-            if constants.net is not constants.BitcoinRegtest:
+            if constants.net is constants.BitcoinRegtest:
+                feerate_per_kvbyte = FEERATE_REGTEST_STATIC_FEE
+            else:
                 return None
-            feerate_per_kvbyte = FEERATE_FALLBACK_STATIC_FEE
         return max(FEERATE_PER_KW_MIN_RELAY_LIGHTNING, feerate_per_kvbyte // 4)
 
     def current_low_feerate_per_kw_srk_channel(self) -> Optional[int]: