Second Task

Author: noname313233

ConsoleApp2/ICollectionItem.cs

@@ -0,0 +1,11 @@
+namespace ConsoleApp2;
+
+public interface ICollectionItem
+{
+    int _id
+        {
+            get;
+            set;
+        }
+        void validateWholeClass();
+    }

ConsoleApp2/Menu.cs

@@ -8,10 +8,10 @@ namespace ConsoleApp2;
 
 public class Menu
 {
-    private REGISTRATION_CERTIFICATE_COLLECTION _collection;
+    private REGISTRATION_CERTIFICATE_COLLECTION<REGISTRATION_CERTIFICATE> _collection;
     public Menu()
     {
-        _collection = new REGISTRATION_CERTIFICATE_COLLECTION();
+        _collection = new REGISTRATION_CERTIFICATE_COLLECTION<REGISTRATION_CERTIFICATE>();
 
         _collection.deserealizeFromFile();
         var dictionary = new Dictionary<int, Delegate>()

ConsoleApp2/Program.cs

@@ -7,10 +7,6 @@ public class Registration
         // This is the main entry point for the application.
         public static void Main(string[] args)
         {
-            var d = new REGISTRATION_CERTIFICATE("1", "ВС9909АВ","5/1/2008","4Y1SL65848Z411439","test","2007");
-            var dq = new REGISTRATION_CERTIFICATE("2", "ВС9908АВ","5/1/2008","4Y1SL65848Z411439","TEst","2008");
-            var dw = new REGISTRATION_CERTIFICATE("3", "ВС9907АВ","5/1/2008","4Y1SL65848Z411439","Audi","2002");
-            var a = new REGISTRATION_CERTIFICATE_COLLECTION();
             var menu = new Menu();
         }
     }

ConsoleApp2/REGISTRATION_CERTIFICATE.cs

@@ -2,7 +2,7 @@
 
 namespace ConsoleApp2;
 
-public class REGISTRATION_CERTIFICATE
+public class REGISTRATION_CERTIFICATE: ICollectionItem
 {
     public int _id{ get; set;}
     public string _registration_number{ get; set; }
@@ -40,12 +40,12 @@ public REGISTRATION_CERTIFICATE(string id, string registration_number,string dat
         Set_year_of_manufacture(yearOfCar);
     }
 
+    
     public void Set_id(string idStr)
     {
         var id = Convert.ToInt32(idStr);
-            _id = Validation.ValidateId(id);
+        _id = Validation.ValidateId(id);
     }
-
     public void Set_registration_number(string number)
     {
 

ConsoleApp2/REGISTRATION_CERTIFICATE_COLLECTION.cs

@@ -4,9 +4,9 @@
 
 namespace ConsoleApp2;
 
-public class REGISTRATION_CERTIFICATE_COLLECTION
+public class REGISTRATION_CERTIFICATE_COLLECTION<T> where T : ICollectionItem
 {
-    private List<REGISTRATION_CERTIFICATE> _list;
+    private List<T> _list;
 
     public void  serilizeToFile()
     {
@@ -17,9 +17,9 @@ public void  serilizeToFile()
 
     public void deserealizeFromFile()
     {
-        List<REGISTRATION_CERTIFICATE> result = new List<REGISTRATION_CERTIFICATE>();
+        List<T> result = new List<T>();
         string json = new StreamReader("../../../data.json").ReadToEnd();
-        _list = JsonSerializer.Deserialize<List<REGISTRATION_CERTIFICATE>>(json);
+        _list = JsonSerializer.Deserialize<List<T>>(json);
         var indexToDelete = new List<int>();
         for (int i =0; i<_list.Count-1;++i)
         {
@@ -40,26 +40,26 @@ public void deserealizeFromFile()
         }
     }
 
-    private REGISTRATION_CERTIFICATE certificateByID(int id)
+    private T ItemById(int id)
     {
         foreach (var certificate in _list)
         {
             if (certificate._id == id)
                 return certificate;
         }
 
-        return null;
+        return default(T);
     }
 
     public REGISTRATION_CERTIFICATE_COLLECTION()
     {
-        _list = new List<REGISTRATION_CERTIFICATE>();
+        _list = new List<T>();
     }
 
 
-    public List<REGISTRATION_CERTIFICATE> searchByValue(string value)
+    public List<T> searchByValue(string value)
     {
-        var result = new List<REGISTRATION_CERTIFICATE>();
+        var result = new List<T>();
         foreach (var item in _list)
         {
             foreach (var field in item.GetType().GetProperties())
@@ -109,7 +109,7 @@ public bool checkIfIdIsUnique(int id)
 
         return true;
     }
-    public void Add(REGISTRATION_CERTIFICATE certificate)
+    public void Add(T certificate)
     {
         if (!checkIfIdIsUnique(certificate._id))
         {
@@ -122,13 +122,13 @@ public void Add(REGISTRATION_CERTIFICATE certificate)
 
     public void Remove(int index)
     {
-        _list.Remove(certificateByID(index));
+        _list.Remove(ItemById(index));
         serilizeToFile();
     }
 
     public void Edit(int index)
     {
-        REGISTRATION_CERTIFICATE foundCertificate = null;
+        T foundCertificate = default(T);
         foreach (var _certificate in _list)
         {
             if (_certificate._id == index)