From 20c44d41cab270e9f75dbbca776e7fb055775f71 Mon Sep 17 00:00:00 2001
From: Florian Stinglmayr <fstinglmayr@gmail.com>
Date: Sun, 18 Jun 2023 15:33:07 +0200
Subject: [PATCH] fix latest/earliest entry functions

---
 EliteBGS/DiscordLogGenerator.cs | 40 ++++++++++++++++++++-------------
 1 file changed, 24 insertions(+), 16 deletions(-)

diff --git a/EliteBGS/DiscordLogGenerator.cs b/EliteBGS/DiscordLogGenerator.cs
index b155a49..87b135a 100644
--- a/EliteBGS/DiscordLogGenerator.cs
+++ b/EliteBGS/DiscordLogGenerator.cs
@@ -36,24 +36,28 @@ public class DiscordLogGenerator {
         return string.Format("EliteBGS {0}", ver);
     }
 
-    protected virtual DateTime GetDateOfEarliestEntry(Objective objective) {
-        return objective
+    protected virtual DateTime? GetDateOfEarliestEntry(Objective objective) {
+        var it = objective
             .Transactions
-            .SelectMany(x => x.Entries)
-            .OrderBy(x => x.Timestamp)
-            .First()
-            .Timestamp
+            .OrderBy(x => x.CompletedAtDateTime)
+            .FirstOrDefault()
             ;
+        if (it != null) {
+            return it.CompletedAtDateTime;
+        }
+        return null;
     }
 
-    protected virtual DateTime GetDateOfLatestEntry(Objective objective) {
-        return objective
+    protected virtual DateTime? GetDateOfLatestEntry(Objective objective) {
+        var it = objective
             .Transactions
-            .SelectMany(x => x.Entries)
-            .OrderByDescending(x => x.Timestamp)
-            .First()
-            .Timestamp
+            .OrderByDescending(x => x.CompletedAtDateTime)
+            .FirstOrDefault()
             ;
+        if (it != null) {
+            return it.CompletedAtDateTime;
+        }
+        return null;
     }
 
     protected virtual string GenerateSummary(Objective objective) {
@@ -113,10 +117,14 @@ public class DiscordLogGenerator {
             DateTime.Now.ToString("dd/MM/yyyy"),
             GetToolVersion()
             );
-        log.AppendFormat("**Date:** {0} - {1}\n",
-            GetDateOfEarliestEntry(objective),
-            GetDateOfLatestEntry(objective)
-            );
+        var earliest = GetDateOfEarliestEntry(objective);
+        var latest = GetDateOfLatestEntry(objective);
+        if (earliest != null && latest != null) {
+            log.AppendFormat("**Date:** {0} - {1}\n",
+                GetDateOfEarliestEntry(objective),
+                GetDateOfLatestEntry(objective)
+                );
+        }
         log.AppendFormat("**Target:** {0}\n", location);
         if (!string.IsNullOrEmpty(summary)) {
             log.AppendFormat("**Summary**: {0}\n", summary);