using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Linq;
using Plume.Interfaces.Settings;
using Plume.WPF.Mvvm;

namespace JD.Remoting.WPF.Module.Settings
{
    public class RemotingSettings : BindableBase, ISettings
    {
        public RemotingSettings()
        {
            Connections.CollectionChanged += ConnectionsOnCollectionChanged;
            foreach (var connection in Connections)
            {
                connection.PropertyChanged += ConnectionOnPropertyChanged;
            }
        }

        private void ConnectionsOnCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
        {
            OnPropertyChanged(nameof(Connections));
            if (e.NewItems != null)
            {
                foreach (var engineConnection in e.NewItems.Cast<EngineConnection>())
                {
                    engineConnection.PropertyChanged += ConnectionOnPropertyChanged;
                }
            }
            if (e.OldItems != null)
            {
                foreach (var engineConnection in e.OldItems.Cast<EngineConnection>())
                {
                    engineConnection.PropertyChanged -= ConnectionOnPropertyChanged;
                }
            }
        }

        private void ConnectionOnPropertyChanged(object sender, PropertyChangedEventArgs e)
        {
            OnPropertyChanged(nameof(Connections));
        }

        public ObservableCollection<EngineConnection> Connections { get; set; } = new ObservableCollection<EngineConnection>();
    }
}