From 537df3422811f7efe4aaac20d09db030b52400b7 Mon Sep 17 00:00:00 2001
From: Claude Brisson <claude@renegat.net>
Date: Tue, 20 Jun 2023 19:06:50 +0200
Subject: [PATCH] Fix history helper init problem

---
 .../src/main/kotlin/org/jeudego/pairgoth/pairing/Solver.kt  | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/api-webapp/src/main/kotlin/org/jeudego/pairgoth/pairing/Solver.kt b/api-webapp/src/main/kotlin/org/jeudego/pairgoth/pairing/Solver.kt
index 664c01a..cf0b74d 100644
--- a/api-webapp/src/main/kotlin/org/jeudego/pairgoth/pairing/Solver.kt
+++ b/api-webapp/src/main/kotlin/org/jeudego/pairgoth/pairing/Solver.kt
@@ -48,8 +48,10 @@ sealed class Solver(
     }
 
     abstract val scores: Map<ID, Double>
-    val historyHelper = if (pairables.first().let { it is TeamTournament.Team && it.teamOfIndividuals }) TeamOfIndividualsHistoryHelper(history, scores)
-    else HistoryHelper(history, scores)
+    val historyHelper by lazy {
+        if (pairables.first().let { it is TeamTournament.Team && it.teamOfIndividuals }) TeamOfIndividualsHistoryHelper(history, scores)
+        else HistoryHelper(history, scores)
+    }
 
     // pairables sorted using overloadable sort function
     private val sortedPairables by lazy {