From 46fd7c3d8bc07f2b6224d33e8b69c4058e6f38b0 Mon Sep 17 00:00:00 2001
From: SomberNight <somber.night@protonmail.com>
Date: Mon, 2 Jul 2018 22:52:20 +0200
Subject: [PATCH] follow-up re #4491, do config upgrade to keep base unit
 settings on kivy

---
 lib/simple_config.py | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/lib/simple_config.py b/lib/simple_config.py
index bc88f2667..03558cd7f 100644
--- a/lib/simple_config.py
+++ b/lib/simple_config.py
@@ -37,7 +37,7 @@ def set_config(c):
     config = c
 
 
-FINAL_CONFIG_VERSION = 2
+FINAL_CONFIG_VERSION = 3
 
 
 class SimpleConfig(PrintError):
@@ -164,6 +164,7 @@ class SimpleConfig(PrintError):
             self.print_error('upgrading config')
 
             self.convert_version_2()
+            self.convert_version_3()
 
             self.set_key('config_version', FINAL_CONFIG_VERSION, save=True)
 
@@ -186,6 +187,19 @@ class SimpleConfig(PrintError):
 
         self.set_key('config_version', 2)
 
+    def convert_version_3(self):
+        if not self._is_upgrade_method_needed(2, 2):
+            return
+
+        base_unit = self.user_config.get('base_unit')
+        if isinstance(base_unit, str):
+            self._set_key_in_user_config('base_unit', None)
+            map_ = {'btc':8, 'mbtc':5, 'ubtc':2, 'bits':2, 'sat':0}
+            decimal_point = map_.get(base_unit.lower())
+            self._set_key_in_user_config('decimal_point', decimal_point)
+
+        self.set_key('config_version', 3)
+
     def _is_upgrade_method_needed(self, min_version, max_version):
         cur_version = self.get_config_version()
         if cur_version > max_version: