From 3ee4691a144223b26280cd14a71c5502c26bf082 Mon Sep 17 00:00:00 2001
From: Hion-V <the.hion.v@gmail.com>
Date: Thu, 2 Feb 2023 13:15:09 +0100
Subject: [PATCH] Opdracht 4a

---
 .../OOP-Opdracht-CSharp-Alfa-2022.csproj      |  1 +
 .../OOP-Opdracht-CSharp-Alfa-2022/Program.cs  |  5 +-
 .../classes/Config.cs                         | 47 +++++++++++++++++++
 3 files changed, 52 insertions(+), 1 deletion(-)
 create mode 100644 OOP-Opdracht-CSharp-Alfa-2022/OOP-Opdracht-CSharp-Alfa-2022/classes/Config.cs

diff --git a/OOP-Opdracht-CSharp-Alfa-2022/OOP-Opdracht-CSharp-Alfa-2022/OOP-Opdracht-CSharp-Alfa-2022.csproj b/OOP-Opdracht-CSharp-Alfa-2022/OOP-Opdracht-CSharp-Alfa-2022/OOP-Opdracht-CSharp-Alfa-2022.csproj
index 24285f6..a8390de 100644
--- a/OOP-Opdracht-CSharp-Alfa-2022/OOP-Opdracht-CSharp-Alfa-2022/OOP-Opdracht-CSharp-Alfa-2022.csproj
+++ b/OOP-Opdracht-CSharp-Alfa-2022/OOP-Opdracht-CSharp-Alfa-2022/OOP-Opdracht-CSharp-Alfa-2022.csproj
@@ -8,6 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Data.SqlClient" Version="5.0.1" />
+    <PackageReference Include="System.Configuration.ConfigurationManager" Version="7.0.0" />
   </ItemGroup>
 
 </Project>
diff --git a/OOP-Opdracht-CSharp-Alfa-2022/OOP-Opdracht-CSharp-Alfa-2022/Program.cs b/OOP-Opdracht-CSharp-Alfa-2022/OOP-Opdracht-CSharp-Alfa-2022/Program.cs
index f3ecb9e..877637e 100644
--- a/OOP-Opdracht-CSharp-Alfa-2022/OOP-Opdracht-CSharp-Alfa-2022/Program.cs
+++ b/OOP-Opdracht-CSharp-Alfa-2022/OOP-Opdracht-CSharp-Alfa-2022/Program.cs
@@ -12,6 +12,7 @@ namespace OOP_Opdracht_CSharp_Alfa_2022
             Opdracht2();
             Opdracht3();
             Opdracht3c();
+            Opdracht4();
         }
         static void Opdracht2()
         {
@@ -43,7 +44,6 @@ namespace OOP_Opdracht_CSharp_Alfa_2022
             Console.WriteLine($"Trying to fetch KeyValue with invalid id 5 {publisher.find(7)}"); // Attempt to find invalid record and output to Console
         }
 
-
         static void Opdracht3c()
         {
             Publisher publisher = new Publisher("publisher"); // Init publisher class instance
@@ -74,5 +74,8 @@ namespace OOP_Opdracht_CSharp_Alfa_2022
                 }
             }
         }
+        public static void Opdracht4(){
+            Config config = Config.getInstance();
+        }
     }
 }
diff --git a/OOP-Opdracht-CSharp-Alfa-2022/OOP-Opdracht-CSharp-Alfa-2022/classes/Config.cs b/OOP-Opdracht-CSharp-Alfa-2022/OOP-Opdracht-CSharp-Alfa-2022/classes/Config.cs
new file mode 100644
index 0000000..daa52ee
--- /dev/null
+++ b/OOP-Opdracht-CSharp-Alfa-2022/OOP-Opdracht-CSharp-Alfa-2022/classes/Config.cs
@@ -0,0 +1,47 @@
+using System.Collections.Generic;
+using System.Collections;
+using System.Linq;
+using System.Configuration;
+using System;
+
+
+class Config{
+
+    private static Config instance = null;
+    private Dictionary<string,string> contents;
+    private Config(){
+        contents = GetSettings();
+    }
+    public static Config getInstance(){
+        if ( instance == null ) instance = new Config();
+        return instance;
+    }
+    Dictionary <string,string> GetSettings()  
+    {  
+        Dictionary<string,string> settings = new Dictionary<string, string>();
+        try  
+            {  
+                var appSettings = ConfigurationManager.AppSettings;  
+                if (appSettings.Count == 0)  
+                {  
+                    Console.WriteLine("AppSettings is empty.");  
+                }  
+                else  
+                {  
+                    var keys = appSettings.AllKeys; 
+                    foreach(string key in keys){
+                        String value = appSettings.GetValues(key).GetValue(0).ToString();
+                        #if DEBUG
+                        Console.WriteLine($"Debug: key {key} has value {value}");
+                        #endif
+                        settings.Add(key,value);
+                    }
+                }
+            }  
+            catch (ConfigurationErrorsException)  
+            {  
+                Console.WriteLine("Error reading app settings");  
+            }  
+        return settings;
+    }    
+}
\ No newline at end of file