From 99b3cc2f5f1ae34988ea85805a50ba1508fe99fe Mon Sep 17 00:00:00 2001
From: Natasa Kasikovic~ <nkasikovic@yahoo.com>
Date: Sat, 30 Mar 2024 01:44:19 +0100
Subject: [PATCH] [Add] Implementation of Update and Create methods to TutorDAO
 class

---
 LangLang/Core/Model/DAO/TutorDAO.cs | 62 +++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 LangLang/Core/Model/DAO/TutorDAO.cs

diff --git a/LangLang/Core/Model/DAO/TutorDAO.cs b/LangLang/Core/Model/DAO/TutorDAO.cs
new file mode 100644
index 00000000..df4a3438
--- /dev/null
+++ b/LangLang/Core/Model/DAO/TutorDAO.cs
@@ -0,0 +1,62 @@
+using LangLang.Core.Model;
+using LangLang.Core.Repository;
+using LangLang.Core.Observer;
+using System.Collections.Generic;
+
+
+namespace LangLang.Core.DAO
+{
+    public class TutorDAO : Subject
+    {
+        private readonly List<Tutor> _tutors;
+        private readonly Repository<Tutor> _repository;
+
+        public TutorDAO()
+        {
+            _repository = new Repository<Tutor>("tutors.csv");
+            _tutors = _repository.Load();
+        }
+        private int GenerateId()
+        {
+            if (_tutors.Count == 0) return 0;
+            return _tutors.Count + 1;
+        }
+
+        private Tutor Get(int id)
+        {
+            return _tutors.Find(t => t.Profile.Id == id);
+        }
+
+        public Tutor Add(Tutor tutor)
+        {
+            tutor.Profile.Id = GenerateId();
+            _tutors.Add(tutor);
+            _repository.Save(_tutors);
+            NotifyObservers();
+            return tutor;
+        }
+
+        public Tutor Update(Tutor tutor)
+        {
+            Tutor oldTutor = Get(tutor.Profile.Id);
+            if (oldTutor == null) { return null; }
+
+            oldTutor.Profile.Name = tutor.Profile.Name;
+            oldTutor.Profile.LastName = tutor.Profile.LastName;
+            oldTutor.Profile.Gender = tutor.Profile.Gender;
+            oldTutor.Profile.DateOfBirth = tutor.Profile.DateOfBirth;
+            oldTutor.Profile.PhoneNumber = tutor.Profile.PhoneNumber;
+            oldTutor.Profile.Email = tutor.Profile.Email;
+            oldTutor.Profile.Password = tutor.Profile.Password;
+            oldTutor.Profile.Role = tutor.Profile.Role;
+
+            _repository.Save(_tutors);
+            NotifyObservers();
+            return oldTutor;
+        }
+
+        // TODO: implement GetAllTutors and Remove method
+
+    }
+}
+