Chat/ChatController/ChatKlassen/Contact.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Media;
using ChatController.LoginKlassen;
using Brush = System.Windows.Media.Brush;

namespace ChatController.ChatKlassen
{
    public class Contact : INotifyPropertyChanged
    {
        public string Name { get; }

        private GroupLatestMessage _ReceivedMessage;
        public GroupLatestMessage ReceivedMessage
        {
            get => _ReceivedMessage;

            set
            {
                _ReceivedMessage = value;
                OnPropertyChanged(nameof(ReceivedMessage));
            }
        }

        public bool IsNewMessage { get; set; }

        private Brush _Color;
        public Brush Color
        {
            get => _Color;
            
            set
            {
                _Color = value;
                OnPropertyChanged(nameof(Color));
            }
        }

        private bool _HasUnreadMessages;
        public bool HasUnreadMessages
        {
            get => _HasUnreadMessages;

            set
            {
                _HasUnreadMessages = value;
                    
                if (_HasUnreadMessages)
                {
                    _Color = new BrushConverter().ConvertFromString("#ff5e00") as SolidColorBrush;
                }
                else
                {
                    _Color = new SolidColorBrush(Colors.Gray);
                }

                OnPropertyChanged(nameof(HasUnreadMessages));
                OnPropertyChanged(nameof(Color));
            }
        }

        public ImageSource Image { get; }

        public DateTime TimeStamp { get; set; }

        public int GroupId { get; set; }

        public int UserOid { get; set; }

        public string UserIdManage { get; set; }

        public bool IsChatMessageInputGridVisible { get; }

        public Bitmap ProfilePicture { get; }

        public Contact(string pName, GroupLatestMessage pLatestMessage, DateTime pTimeStamp, int pGroupId, string pUserIdManage, bool pOnlyEmployees, int pUserCount, bool isChatMessageInputGridVisible, string accentColorBrushString, Bitmap profilePicture, ImageSource image)
        {
            Name              = pName;
            ReceivedMessage   = pLatestMessage;
            TimeStamp         = pTimeStamp;
            GroupId           = pGroupId;
            UserIdManage      = pUserIdManage;
            HasUnreadMessages = false;

            ProfilePicture = profilePicture;

            IsChatMessageInputGridVisible = isChatMessageInputGridVisible;

            AccentColorBrush = new BrushConverter().ConvertFromString($"#{accentColorBrushString}") as SolidColorBrush ?? new SolidColorBrush(Colors.Black);

            Image = image;
        }

        private sealed class ContactEqualityComparer : IEqualityComparer<Contact>
        {
            public bool Equals(Contact x, Contact y)
            {
                if(ReferenceEquals(x, y))
                {
                    return true;
                }

                if(x is null)
                {
                    return false;
                }

                if(y is null)
                {
                    return false;
                }

                if(x.GetType() != y.GetType())
                {
                    return false;
                }

                return x.Name == y.Name && 
                       x.IsNewMessage == y.IsNewMessage && 
                       Equals(x.ProfilePicture, y.ProfilePicture) && 
                       x.TimeStamp.Equals(y.TimeStamp) && 
                       x.GroupId == y.GroupId && 
                       x.UserOid == y.UserOid && 
                       x.UserIdManage == y.UserIdManage && 
                       x.IsChatMessageInputGridVisible == y.IsChatMessageInputGridVisible;
            }

            public int GetHashCode(Contact obj)
            {
                unchecked
                {
                    var hashCode = obj.Name != null ? obj.Name.GetHashCode() : 0;

                    hashCode = (hashCode * 397) ^ obj.IsNewMessage.GetHashCode();
                    hashCode = (hashCode * 397) ^ (obj.ProfilePicture != null ? obj.ProfilePicture.GetHashCode() : 0);
                    hashCode = (hashCode * 397) ^ obj.TimeStamp.GetHashCode();
                    hashCode = (hashCode * 397) ^ obj.GroupId;
                    hashCode = (hashCode * 397) ^ obj.UserOid;
                    hashCode = (hashCode * 397) ^ (obj.UserIdManage != null ? obj.UserIdManage.GetHashCode() : 0);
                    hashCode = (hashCode * 397) ^ obj.IsChatMessageInputGridVisible.GetHashCode();

                    return hashCode;
                }
            }
        }

        public SolidColorBrush AccentColorBrush { get; }

        public event PropertyChangedEventHandler PropertyChanged;

        protected virtual void OnPropertyChanged(string propertyName)
        {
            var handler = PropertyChanged;
            handler?.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }      
    }
}