WIP private chat

BookAStar/BookAStar/ViewModels/Messaging/ChatUserInfo.cs

@@ -0,0 +1,159 @@
+
+using BookAStar.Helpers;
+using System.Collections.ObjectModel;
+using System.Linq;
+using Xamarin.Forms;
+using XLabs.Forms.Mvvm;
+using YavscLib;
+using System;
+using Newtonsoft.Json;
+
+namespace BookAStar.Model.Social.Chat
+{
+    public class ChatUserInfo : ViewModel, IChatUserInfo
+    {
+
+        public string avatar;
+        public string Avatar
+        {
+            get
+            {
+                return avatar;
+            }
+            set
+            {
+                var newSource = UserHelpers.Avatar(value);
+                SetProperty<string>(ref avatar, value);
+                SetProperty<ImageSource>(ref avatarSource, newSource, "AvatarSource");
+            }
+        }
+
+        ImageSource avatarSource;
+        [JsonIgnore]
+        public ImageSource AvatarSource
+        {
+            get
+            {
+                return avatarSource;
+            }
+        }
+
+        public Connection [] Connections
+        {
+            get
+            {
+                return ObservableConnections?.ToArray();
+            }
+            set
+            {
+                ObservableConnections = new ObservableCollection<Connection>(value);
+            }
+        }
+
+        ObservableCollection<Connection> connections;
+        [JsonIgnore]
+        public ObservableCollection<Connection> ObservableConnections
+        {
+            get
+            {
+                return connections;
+            }
+            set
+            {
+                SetProperty<ObservableCollection<Connection>>(ref connections, value);
+            }
+        }
+
+        string[] roles;
+        public string[] Roles
+        {
+            get
+            {
+                return roles;
+            }
+            set
+            {
+                SetProperty<string[]>(ref roles, value);
+                NotifyPropertyChanged("RolesAsAString");
+            }
+        }
+
+        [JsonIgnore]
+        public string RolesAsAString
+        {
+            get
+            {
+                return string.Join(", ", Roles);
+            }
+        }
+
+        string userId;
+        public string UserId
+        {
+            get
+            {
+                return userId;
+            }
+            set
+            {
+                SetProperty<string>(ref userId, value);
+            }
+        }
+
+        string userName;
+        public string UserName
+        {
+            get
+            {
+                return userName;
+            }
+            set
+            {
+                SetProperty<string>(ref userName, value);
+            }
+        }
+
+        public bool IsConnected { get
+            {
+                return Connections.Length > 0;
+            } }
+
+        [JsonIgnore]
+        IConnection[] IChatUserInfo.Connections
+        {
+            get
+            {
+                return Connections;
+            }
+
+            set
+            {
+                throw new NotImplementedException();
+            }
+        }
+
+
+        public void OnConnected(string cxId)
+        {
+            // We do assume this cxId dosn't already exist in this list.
+            var cx = new Connection { ConnectionId = cxId, Connected = true };
+            if (ObservableConnections == null)
+                ObservableConnections = new ObservableCollection<Connection>();
+            ObservableConnections.Add(cx);
+            if (this.ObservableConnections.Count == 1)
+                NotifyPropertyChanged("IsConnected");
+        }
+
+        public void OnDisconnected(string cxId)
+        {
+            var existentcx = Connections.FirstOrDefault(cx => cx.ConnectionId == cxId);
+            if (existentcx != null)
+            {
+                this.ObservableConnections.Remove(existentcx);
+                
+                if (this.ObservableConnections.Count == 0)
+                    NotifyPropertyChanged("IsConnected");
+            }
+        }
+    }
+}