using System.Threading.Tasks;
using Aurora.Proto.Party;
using Aurora.Design.Views.Party.NewPartyDialog;
using Aurora.Services.Settings;
using Aurora.Services;

namespace Aurora.Design.Views.Party
{
    delegate void EventHandler(BaseEvent e);
    public class PartyViewModel : BasePartyViewModel
    {

        public PartyViewModel(ISettingsService settingsService, Global global): base(settingsService, global)
        {
        }

        /// <summary>
        /// Called by framework when view becomes active
        /// </summary>
        /// <returns></returns>
        public override Task OnActive()
        {
            OnPropertyChanged("SelectedTabIndex");
            switch(this._global.State)
            {
                case PartyState.Hosting: 
                {
                    this.SetView.Invoke(typeof(PartyView), typeof(HostPartyViewModel));
                    break;
                }
                case PartyState.InParty:
                {
                    // TODO
                    break;
                }
                default: 
                {
                    //Open host selection modal
                    NewPartyDialogViewModel vm = new NewPartyDialogViewModel();
                    ConnectionDetails details = new ConnectionDetails();
                    vm.Finish = () =>
                    {
                        this.HideModal();
                        details = vm.ReturnObject as ConnectionDetails;
                        this._hostname = details.HostName;
                        switch (details.ConnectionType)
                        {
                            case ConnectionType.Host:
                                {
                                    this.SetView.Invoke(typeof(PartyView), typeof(HostPartyViewModel));
                                    break;
                                }
                            case ConnectionType.Join:
                                {
                                    // TODO
                                    break;
                                }
                        }
                    };

                    this.ShowModal(typeof(NewPartyDialog.NewPartyDialog), vm);
                    break;
                }
            }
            return Task.FromResult<object>(null);
        }

        /// <summary>
        /// Called by framework when view becomes inactive
        /// </summary>
        /// <returns></returns>
        public override Task OnInactive()
        {
            // if(this._eventCancellationTokenSource != null){
            //     this._eventCancellationTokenSource.Cancel();
            // }
            
            return Task.FromResult<object>(null);
        }
    }
}