From c12214d02933161a9ef782441fd8d191666d144b Mon Sep 17 00:00:00 2001
From: Roland Schmitt <13732585+agentschmitt@users.noreply.github.com>
Date: Wed, 3 Dec 2025 18:11:06 +0100
Subject: [PATCH] MET-4505 change constructor logic to lazy otherwise injection
 of any repository will crash when mongodb is not configured instead if should
 only run on error on first method call on the Collection

---
 src/Samhammer.Mongo/BaseRepositoryMongo.cs | 17 +++++++++++------
 src/Samhammer.MongoDb.sln.DotSettings      |  2 ++
 2 files changed, 13 insertions(+), 6 deletions(-)
 create mode 100644 src/Samhammer.MongoDb.sln.DotSettings

diff --git a/src/Samhammer.Mongo/BaseRepositoryMongo.cs b/src/Samhammer.Mongo/BaseRepositoryMongo.cs
index cb284ed..49ea919 100644
--- a/src/Samhammer.Mongo/BaseRepositoryMongo.cs
+++ b/src/Samhammer.Mongo/BaseRepositoryMongo.cs
@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Threading.Tasks;
 using Microsoft.Extensions.Logging;
 using MongoDB.Driver;
@@ -12,19 +13,23 @@ public class BaseRepositoryMongo<T> : IBaseRepositoryMongo<T>
     {
         protected ILogger<BaseRepositoryMongo<T>> Logger { get; }
 
-        protected IMongoCollection<T> Collection { get; }
+        protected IMongoCollection<T> Collection => collection.Value;
 
-        private IMongoDatabase Database { get; }
+        private IMongoDatabase Database => database.Value;
 
         protected FilterDefinitionBuilder<T> Filter => Builders<T>.Filter;
 
         protected UpdateDefinitionBuilder<T> Update => Builders<T>.Update;
-        
+
+        private readonly Lazy<IMongoCollection<T>> collection;
+
+        private readonly Lazy<IMongoDatabase> database;
+
         public BaseRepositoryMongo(ILogger<BaseRepositoryMongo<T>> logger, IMongoDbConnector connector, string databaseName = null)
         {
             Logger = logger;
-            Database = connector.GetMongoDatabase(databaseName);
-            Collection = GetCollection<T>();
+            database = new Lazy<IMongoDatabase>(() => connector.GetMongoDatabase(databaseName));
+            collection = new Lazy<IMongoCollection<T>>(GetCollection<T>);
         }
 
         protected IMongoCollection<TR> GetCollection<TR>()
diff --git a/src/Samhammer.MongoDb.sln.DotSettings b/src/Samhammer.MongoDb.sln.DotSettings
new file mode 100644
index 0000000..9a953fd
--- /dev/null
+++ b/src/Samhammer.MongoDb.sln.DotSettings
@@ -0,0 +1,2 @@
+<wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/UserRules/=4a98fdf6_002D7d98_002D4f5a_002Dafeb_002Dea44ad98c70c/@EntryIndexedValue">&lt;Policy&gt;&lt;Descriptor Staticness="Instance" AccessRightKinds="Private" Description="Instance fields (private)"&gt;&lt;ElementKinds&gt;&lt;Kind Name="FIELD" /&gt;&lt;Kind Name="READONLY_FIELD" /&gt;&lt;/ElementKinds&gt;&lt;/Descriptor&gt;&lt;Policy Inspect="True" WarnAboutPrefixesAndSuffixes="True" Prefix="" Suffix="" Style="aaBb" /&gt;&lt;/Policy&gt;</s:String></wpf:ResourceDictionary>
\ No newline at end of file