From d55e4628e9861a80690fb574ccc9f5e20e8216fb Mon Sep 17 00:00:00 2001
From: Yan Guiborat <yan.guiborat@gmail.com>
Date: Mon, 23 Jan 2023 11:15:28 +0100
Subject: [PATCH] Using prior value if no new value for a curreny ( fixes #836
 )

---
 lib/archethic/oracle_chain/services/uco_price.ex | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/lib/archethic/oracle_chain/services/uco_price.ex b/lib/archethic/oracle_chain/services/uco_price.ex
index 3f95d26127..34d1ed7638 100644
--- a/lib/archethic/oracle_chain/services/uco_price.ex
+++ b/lib/archethic/oracle_chain/services/uco_price.ex
@@ -72,7 +72,7 @@ defmodule Archethic.OracleChain.Services.UCOPrice do
             previous_values ++ values
         end)
 
-      {_currency, _values}, acc ->
+      _, acc ->
         acc
     end)
   end
@@ -87,7 +87,10 @@ defmodule Archethic.OracleChain.Services.UCOPrice do
 
       {:ok, prices_now} ->
         Enum.all?(@pairs, fn pair ->
-          compare_price(Map.fetch!(prices_prior, pair), Map.fetch!(prices_now, pair))
+          compare_price(
+            Map.fetch!(prices_prior, pair),
+            Map.get(prices_now, pair, Map.fetch!(prices_prior, pair))
+          )
         end)
     end
   end