uy ishi N26 buldi

N26_HT2/Extention/CollectionExtensions.cs

@@ -1,6 +1,36 @@
 namespace N26_HT2.Extention;
 
-public class CollectionExtensions
+public static class CollectionExtensions
 {
-
+
+    public static ICollection<Skills> Update(this ICollection<Skills> firstcollection,
+        ICollection<Skills> secondcollection)
+    {
+        var list = firstcollection.ToList();
+
+        var addedItems = secondcollection
+            .ExceptBy(firstcollection.Select(firstItem => firstItem.Id), item => item.Id);
+
+        var removedItems = firstcollection
+            .ExceptBy(secondcollection.Select(firstItem => firstItem.Id), item => item.Id);
+
+        var intersectKeys = firstcollection.Select(item => item.Id)
+            .Intersect(secondcollection.Select(item => item.Id));
+
+        foreach (var item in addedItems)
+            list.Add(item);
+
+        foreach (var item in removedItems)
+            list.Remove(item);
+
+        foreach (var key in intersectKeys)
+        {
+            var firstItem = list.First(a => a.Id == key);
+            var secondItem =  secondcollection.First(a => a.Id == key);
+
+            firstItem.Name = secondItem.Name;
+            firstItem.Level = secondItem.Level;
+        }
+        return list;
+    }
 }

N26_HT2/Program.cs

@@ -15,3 +15,42 @@
 //- added - qo'shilganlar ( second da bor, first da yo'q ) -bularni first ga qo'shish kerak
 //- removed - o'chirilganlar ( second da yo'q, first da bor ) -bularni first dan o'chirish kerak
 //- updated - o'zgartirilgan ( first da va second da bor va o'zgartirilgan ) -bularni first da update qilish kerak ( id dan tashqari ) 
+
+using System.Text.Json;
+using N26_HT2;
+using N26_HT2.Enums;
+using N26_HT2.Extention;
+
+
+var skillsA = new List<Skills>
+{
+    new("Vue", SkillLevels.Beginner),
+    new("Angular", SkillLevels.Experienced),
+    new("React", SkillLevels.Master),
+    new(".NET", SkillLevels.Expert),
+    new("Python", SkillLevels.Beginner),
+};
+
+Console.WriteLine(JsonSerializer.Serialize(skillsA));
+Console.WriteLine();
+
+var updatedItemA = skillsA[2];
+updatedItemA.Name = "Node.js";
+var updatedItemB = skillsA[2];
+updatedItemB.Level = SkillLevels.Beginner;
+
+var skillB = new List<Skills>
+{
+    new("Ruby", SkillLevels.Experienced),
+    new("Swift", SkillLevels.Expert),
+    updatedItemA,
+    updatedItemB,
+    skillsA[0],
+    skillsA[3],
+};
+
+Console.WriteLine(JsonSerializer.Serialize(skillB));
+Console.WriteLine();
+
+var result = skillsA.Update(skillB);
+Console.WriteLine(JsonSerializer.Serialize(result));

N26_HT2/Skills.cs

@@ -10,13 +10,13 @@ namespace N26_HT2
     public class Skills
     {
         //- Skill modelidan foydalaning(id, name, level )
-        public int Id { get; set; }
+        public Guid Id { get; set; }
         public string Name { get; set; }
         public SkillLevels Level { get; set; }
 
-        public Skills(int id,string name, SkillLevels lavel)
+        public Skills(string name, SkillLevels lavel)
         {
-            Id = id;
+            Id = Guid.NewGuid();
             Name = name;
             Level = lavel;
         }