From 9caae399d25e200bf59ec6f61e3e38836e6c5c3b Mon Sep 17 00:00:00 2001
From: tecnovert <tecnovert@tecnovert.net>
Date: Sat, 2 May 2026 22:59:35 +0200
Subject: [PATCH] fix: convert coin variant tickers

---
 basicswap/chainparams.py        | 14 ++++++++++++--
 basicswap/interface/btc.py      |  2 +-
 basicswap/js_server.py          |  2 +-
 tests/basicswap/test_ltc_xmr.py | 27 ++++++++++++++++++++++++++-
 4 files changed, 40 insertions(+), 5 deletions(-)

diff --git a/basicswap/chainparams.py b/basicswap/chainparams.py
index 1e30cd6..8b9385c 100644
--- a/basicswap/chainparams.py
+++ b/basicswap/chainparams.py
@@ -552,16 +552,26 @@ chainparams = {
 
 name_map = {}
 ticker_map = {}
+variant_ticker_map = {}
 
 
 for c, params in chainparams.items():
     name_map[params["name"].lower()] = c
     ticker_map[params["ticker"].lower()] = c
 
+# Add coin variants, eg: LTC_MWEB, PART_ANON
+for c in Coins:
+    if c.name.lower() in ticker_map:
+        continue
+    variant_ticker_map[c.name.lower()] = c
 
-def getCoinIdFromTicker(ticker: str) -> str:
+
+def getCoinIdFromTicker(ticker: str, inc_variant: bool = False) -> str:
+    lc_ticker: str = ticker.lower()
     try:
-        return ticker_map[ticker.lower()]
+        if inc_variant and lc_ticker in variant_ticker_map:
+            return variant_ticker_map[lc_ticker]
+        return ticker_map[lc_ticker]
     except Exception:
         raise ValueError(f"Unknown coin {ticker}")
 
diff --git a/basicswap/interface/btc.py b/basicswap/interface/btc.py
index c1cbd8a..2cc2bac 100644
--- a/basicswap/interface/btc.py
+++ b/basicswap/interface/btc.py
@@ -449,11 +449,11 @@ class BTCInterface(Secp256k1Interface):
         # Wallet name is "" for some LTC and PART installs on older cores
         if self._rpc_wallet not in wallets and len(wallets) > 0:
             if "" in wallets:
+                # Setting wallet= in the coin .conf file should also work
                 self._log.warning(
                     f"Nameless {self.ticker()} wallet found."
                     + '\nPlease set the "wallet_name" coin setting to "" or recreate the wallet'
                 )
-                # backupwallet and restorewallet with name should work.
 
         if self._rpc_wallet not in wallets:
             raise RuntimeError(
diff --git a/basicswap/js_server.py b/basicswap/js_server.py
index b927a7f..fa83cae 100644
--- a/basicswap/js_server.py
+++ b/basicswap/js_server.py
@@ -290,7 +290,7 @@ def js_wallets(self, url_split, post_string, is_json):
     swap_client.checkSystemStatus()
     if len(url_split) > 3:
         ticker_str = url_split[3]
-        coin_type = getCoinIdFromTicker(ticker_str)
+        coin_type = getCoinIdFromTicker(ticker_str, inc_variant=True)
 
         if len(url_split) > 4:
             cmd = url_split[4]
diff --git a/tests/basicswap/test_ltc_xmr.py b/tests/basicswap/test_ltc_xmr.py
index 3bdb656..4fc38f9 100644
--- a/tests/basicswap/test_ltc_xmr.py
+++ b/tests/basicswap/test_ltc_xmr.py
@@ -2,7 +2,7 @@
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2021-2024 tecnovert
-# Copyright (c) 2024 The Basicswap developers
+# Copyright (c) 2024-2026 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
@@ -184,6 +184,15 @@ class TestLTC(BasicSwapTest):
         ci0 = swap_clients[0].ci(self.test_coin_from)
         ci1 = swap_clients[1].ci(self.test_coin_from)
 
+        # mweb utxos before sending to mweb
+        num_mweb: int = 0
+        utxos_0 = ci0.rpc_wallet("listunspent")
+        for utxo in utxos_0:
+            addr_info = ci0.rpc_wallet("getaddressinfo", [utxo["address"]])
+            if addr_info["ismweb"] is True:
+                num_mweb += 1
+        assert num_mweb == 1
+
         mweb_addr_0 = ci0.rpc_wallet("getnewaddress", ["mweb addr test 0", "mweb"])
         mweb_addr_1 = ci1.rpc_wallet("getnewaddress", ["mweb addr test 1", "mweb"])
 
@@ -210,6 +219,19 @@ class TestLTC(BasicSwapTest):
             < 0.1
         )
 
+        num_mweb: int = 0
+        utxos_0 = ci0.rpc_wallet(
+            "listunspent",
+            [
+                0,
+            ],
+        )
+        for utxo in utxos_0:
+            addr_info = ci0.rpc_wallet("getaddressinfo", [utxo["address"]])
+            if addr_info["ismweb"] is True:
+                num_mweb += 1
+        assert num_mweb > 1
+
         try:
             pause_event.clear()  # Stop mining
             ci0.rpc_wallet("sendtoaddress", [mweb_addr_1, 10.0])
@@ -237,6 +259,7 @@ class TestLTC(BasicSwapTest):
         for utxo in utxos:
             if utxo.get("address", "") == mweb_addr_1:
                 mweb_tx = utxo
+                break
         assert mweb_tx is not None
 
         unspent_addr = ci1.getUnspentsByAddr()
@@ -265,7 +288,9 @@ class TestLTC(BasicSwapTest):
         ltc_mweb_addr = read_json_api(
             TEST_HTTP_PORT + 0, "wallets/ltc_mweb/nextdepositaddr"
         )
+        assert ltc_mweb_addr.startswith("tmweb1")
         ltc_mweb_addr2 = read_json_api(TEST_HTTP_PORT + 0, "wallets/ltc/newmwebaddress")
+        assert ltc_mweb_addr2.startswith("tmweb1")
 
         assert (
             ci_mweb.rpc_wallet(