basic manager layout & re-design model

OwnChar/Manager/OwnCharManager.cs

@@ -1,13 +1,38 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+using OwnChar.Data;
+using OwnChar.Model;
+using Pilz.Cryptography;
 
 namespace OwnChar.Manager
 {
     public class OwnCharManager
     {
+        // User
+        public bool IsLoggedIn { get; set; }
+        public UserAccount? CurrentUser { get; set; }
 
+        // Data Provider
+        public IDataProvider DataProvider { get; set; }
+
+        // Manager
+        public UserManager Users { get; }
+        public GroupsManager Groups { get; }
+        public CharacterManager Characters { get; }
+
+        public OwnCharManager(IDataProvider dataProvider)
+        {
+            DataProvider = dataProvider;
+            Users = new(this);
+            Groups = new(this);
+            Characters = new(this);
+        }
+
+        /// <summary>
+        /// Tries to login on the server.
+        /// </summary>
+        /// <returns>Returns <see cref="true"/> if the login was successfull and <see cref="false"/> if not.</returns>
+        public bool Login(string username, SecureString password)
+        {
+            return IsLoggedIn = true; // TODO: Change `true` to the real check.
+        }
     }
 }