using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Windows;

using BeWo.Core;
using BeWo.ServiceProxy;
using BeWo.View.Detail;
using BeWo.View.Navigation.Sorter;
using BeWo.ViewModel;

using BS.Shared;
using BS.Shared.Core;
using BS.Shared.DataContracts;
using BS.Shared.DataContracts.Compact;
using BS.Shared.Extensions;

using Microsoft.Win32;

namespace BeWo.View.Navigation
{
    public partial class TeamNavigationView
    {
        private IEnumerable<IFilterableDC> objectList;
        private IEnumerable<IFilterableDC> recentList;

        public TeamNavigationView()
        {
            InitializeComponent();

            //###CB SERIENBRIEF mainNavigationView.MailMergeButton.Visibility = Visibility.Collapsed;

			mainNavigationView.Sorter = new TeamSorter();
	        mainNavigationView.ShowArchivedObjectsVisible = false;

        }

        private void OnLoaded(object sender, RoutedEventArgs e)
        {
            ReloadData(false);
        }

        private void mainNavigationView_CreateNewObject()
        {
            VMFactory.CreateTeamVMAsync(cb => this.Dispatch(delegate { this.MainControl.NavigateTo(new TeamView(cb) { ParentView = this }); }));
        }

        private bool mainNavigationView_DeleteObject(IFilterableDC obj)
        {
            if (obj is CompactTeamDC dc)
            {
                if (MessageBox.Show("Wollen Sie das Team '" + dc.Name + "' wirklich löschen?", "Löschen", MessageBoxButton.YesNo, MessageBoxImage.Exclamation) == MessageBoxResult.Yes)
                {
                    ServiceFacade.DoEmployeeServiceAsync(s => s.DeactivateTeam(dc.TeamOid, dc.TeamVersion));
                    return true;
                }
            }

            return false;
        }

        private void mainNavigationView_ExcelExport(object sender, EventArgs<IEnumerable<IFilterableDC>> e)
        {
			var path = BeWoApp.GetAndCreateUserAppDataPath() + "\\Teams.xls";

            var sf = new SaveFileDialog { FileName = Path.GetFileName(path), Filter = "Microsoft Excel 97-2003-Arbeitsblatt|*.xls|Alle Dateien|*.*" };
            if (sf.ShowDialog() != true)
            {
                return;
            }

            ServiceFacade.DoDownloadServiceSync(s => BeWoUtils.WriteExcelFile(s.PrepareExcelFileTeamExport(mainNavigationView.DownloadLinkEngine.ExcelFileId, e.Data.Cast<CompactTeamDC>().Select(c => c.TeamOid).ToList()), sf.FileName));
        }

        private void mainNavigationView_OpenObject(IFilterableDC obj)
        {
            if (obj is CompactTeamDC dc)
            {
                VMFactory.CreateTeamVMAsync(dc.TeamOid, cb => this.Dispatch(delegate { MainControl.NavigateTo(new TeamView(cb) { ParentView = this }); }));
            }
        }

        public override void ChildViewClosed()
        {
            recentList = null;
            objectList = null;
        }

        private void MainNavigationView_OnReloadData()
        {
            ReloadData(true);
        }

        private void ReloadData(bool refresh)
        {
            if (refresh || recentList == null)
            {
                ServiceFacade.DoEmployeeServiceAsync(s => s.GetAllTeamsCompact(), r => 
                    this.Dispatch(delegate
                    {
                        objectList = r;
                        mainNavigationView.ShowSearchResult(objectList);
                    }));

                ServiceFacade.DoEmployeeServiceAsync(s => s.GetLastOpenedTeams(), r => 
                    this.Dispatch(delegate
                    {
                        ServiceFacade.DoEmployeeServiceAsync(sx => sx.GetTeamOidsByEmployee(BeWoApp.LoggedOnEmployee.EmployeeOid.Value), cbx => this.Dispatch(delegate
                        {
                            if(BeWoApp.LoggedOnUser.HasRight(UserRightType.TeamView_ViewAll))
                            {
                                recentList = r;
                            }
                            else if(BeWoApp.LoggedOnUser.HasRight(UserRightType.TeamView_ViewMyTeams))
                            {
                                recentList = r.Where(w => !cbx.Contains(w));
                            }
                            else
                            {
                                recentList = new List<IFilterableDC>();
                            }

                            recentList = r;
                            mainNavigationView.ShowHistory(recentList);
                        }));
                    }));
            }
            else
            {
                mainNavigationView.ShowSearchResult(objectList);
                mainNavigationView.ShowHistory(recentList);
            }
        }
    }
}