using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Navigation;

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

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

using Microsoft.Win32;


namespace BeWo.View.Navigation
{
    /// <summary>
    /// Interaktionslogik für CustomerNavigationView.xaml
    /// </summary>
    public partial class CustomerNavigationView
    {
        //private readonly CheckBox chkShowOnlyMyCustomers;
        //private readonly CheckBox chkShowOnlyTeamCustomers;
        private readonly ComboBox supportConceptFilterComboBox;

        private IEnumerable<IFilterableDC> objectList;
        private IEnumerable<IFilterableDC> recentList;

        public CustomerNavigationView()
        {
            InitializeComponent();

            mainNavigationView.Sorter = new CustomerSorter();
            mainNavigationView.ArchiveButtonVisible = BeWoApp.LoggedOnUser.HasRight(UserRightType.Customer_AllowArchiving);
            mainNavigationView.ShowArchivedObjectsVisible = true;


            supportConceptFilterComboBox = new ComboBox();
            //supportConceptFilterComboBox.HorizontalAlignment = "Left";
            //supportConceptFilterComboBox.FontFamily = "Microsoft Sans Serif";

            //supportConceptFilterComboBox.Foreground = new SolidColorBrush(Color.FromRgb(210, 210, 210));
            supportConceptFilterComboBox.FontSize = 12;
            supportConceptFilterComboBox.Margin = new Thickness(10, 0, 0, 0);
            supportConceptFilterComboBox.MinWidth = 100;
            //supportConceptFilterComboBox.DisplayMemberPath = "DisplayName";
            //supportConceptFilterComboBox.SelectionChanged = "sortCombo_SelectionChanged";
            supportConceptFilterComboBox.Style = FindResource("SortComboBox") as Style;
            

            if(BeWoApp.LoggedOnUser.HasRight(UserRightType.CustomerView_View) || BeWoApp.LoggedOnUser.HasRight(UserRightType.ViewAll))
            {
                supportConceptFilterComboBox.Items.Add(new CustomerFilterItem(CustomerFilterEnum.All));
            }
            
            if(BeWoApp.LoggedOnUser.HasRight(UserRightType.Customer_ViewMyTeams))
            {
                supportConceptFilterComboBox.Items.Add(new CustomerFilterItem(CustomerFilterEnum.TeamCustomer));
            }
            supportConceptFilterComboBox.Items.Add(new CustomerFilterItem(CustomerFilterEnum.MyCustomer));

            CustomerFilterItem selectedItem = null;

            switch(BeWoApp.AppSettings.CustomerFilterSupportConcepts)
            {
                case CustomerFilterEnum.All:
                    if(BeWoApp.LoggedOnUser.HasRight(UserRightType.CustomerView_View) || BeWoApp.LoggedOnUser.HasRight(UserRightType.ViewAll))
                    {
                        selectedItem = new CustomerFilterItem(CustomerFilterEnum.All);
                    }
                    
                    break;
                case CustomerFilterEnum.TeamCustomer:
                    if(BeWoApp.LoggedOnUser.HasRight(UserRightType.CustomerView_View) ||
                       BeWoApp.LoggedOnUser.HasRight(UserRightType.ViewAll) ||
                       BeWoApp.LoggedOnUser.HasRight(UserRightType.Customer_ViewMyTeams))
                    {
                        selectedItem = new CustomerFilterItem(CustomerFilterEnum.TeamCustomer);
                    }
                    
                    break;
            }
            
            if(selectedItem == null)
            {
                selectedItem = new CustomerFilterItem(CustomerFilterEnum.MyCustomer);
            }
            
            supportConceptFilterComboBox.SelectedItem = selectedItem;
            supportConceptFilterComboBox.SelectionChanged += SupportConceptFilterComboBoxOnSelectionChanged;

            //chkShowOnlyMyCustomers = new CheckBox
            //    {
            //        FontSize = 12,
            //        Margin = new Thickness(10, 0, 0, 0),
            //        Content = Translator.Translate("Meine Klienten"),
            //        VerticalAlignment = VerticalAlignment.Center
            //    };
            //chkShowOnlyTeamCustomers = new CheckBox
            //{
            //    FontSize = 12,
            //    Margin = new Thickness(10, 0, 0, 0),
            //    Content = Translator.Translate("Klienten meines Teams"),
            //    VerticalAlignment = VerticalAlignment.Center
            //};

            //var b = FindResource("MainGroupBoxForegroundBrush") as Brush;
            //if (b != null)
            //{
            //    chkShowOnlyMyCustomers.Foreground = b;
            //    chkShowOnlyTeamCustomers.Foreground = b;
            //}

            //if (!BeWoApp.LoggedOnUser.HasRight(UserRightType.CustomerView_View) &&
            //    !BeWoApp.LoggedOnUser.HasRight(UserRightType.ViewAll))
            //{
            //    chkShowOnlyMyCustomers.IsChecked = true;
            //    chkShowOnlyMyCustomers.IsEnabled = false;
            //}
            //else
            //{
            //    chkShowOnlyMyCustomers.IsChecked = BeWoApp.AppSettings.ShowOnlyMyClients;
            //}

            //if (!BeWoApp.LoggedOnUser.HasRight(UserRightType.CustomerView_View) &&
            //    !BeWoApp.LoggedOnUser.HasRight(UserRightType.ViewAll))
            //{
            //    chkShowOnlyTeamCustomers.IsChecked = true;
            //    chkShowOnlyTeamCustomers.IsEnabled = false;
            //}
            //else
            //{
            //    chkShowOnlyTeamCustomers.IsChecked = BeWoApp.AppSettings.ShowOnlyTeamClients;
            //}

            //chkShowOnlyMyCustomers.Click += chkShowOnlyMyCustomers_Click;
            //chkShowOnlyTeamCustomers.Click += chkShowOnlyMyCustomers_Click;

            //mainNavigationView.AddControlToSortPanel(chkShowOnlyMyCustomers);
            //mainNavigationView.AddControlToSortPanel(chkShowOnlyTeamCustomers);
            var lbl = new TextBlock
            {
                Text = "Filter:",
                FontSize = 12,
                Margin = new Thickness(8, 2, -3, 0)
            };

            mainNavigationView.sortPanel.Children.Insert(3, lbl);
            mainNavigationView.sortPanel.Children.Insert(4, supportConceptFilterComboBox);
            
            UpdateCustomFilter();
        }

        private void SupportConceptFilterComboBoxOnSelectionChanged(object o, SelectionChangedEventArgs selectionChangedEventArgs)
        {
            BeWoApp.AppSettings.CustomerFilterSupportConcepts = ((CustomerFilterItem) supportConceptFilterComboBox.SelectedItem)?.CustomerFilter ?? CustomerFilterEnum.MyCustomer;

            BeWoApp.SaveAppSettings();

            UpdateCustomFilter();
        }

        private CustomFilter CreateNewCustomFilter()
        {
            var filter = new CustomerNavigationFilter {CustomerFilter = ((CustomerFilterItem) supportConceptFilterComboBox.SelectedItem)?.CustomerFilter ?? CustomerFilterEnum.MyCustomer};

            return filter;
        }

        private void OnLoaded(object sender, RoutedEventArgs e)
        {
            ServiceFacade.DoCustomerServiceAsync(s => s.ConvertToNewSubstitutionType(), n => this.Dispatch(delegate
            {
                ReloadData(false);
            }));
        }

        private void UpdateCustomFilter()
        {
            mainNavigationView.CustomFilter = CreateNewCustomFilter();
        }

        private void ChkShowOnlyMyCustomers_Click(object sender, RoutedEventArgs e)
        {
            //if (chkShowOnlyMyCustomers.IsChecked != null)
            //    BeWoApp.AppSettings.ShowOnlyMyClients = chkShowOnlyMyCustomers.IsChecked.Value;
            //if (chkShowOnlyTeamCustomers.IsChecked != null)
            //    BeWoApp.AppSettings.ShowOnlyTeamClients = chkShowOnlyTeamCustomers.IsChecked.Value;
            BeWoApp.SaveAppSettings();

            UpdateCustomFilter();
        }

        private bool mainNavigationView_ArchiveObject(IFilterableDC obj)
        {
            var cdc = obj as CompactCustomerDC;
            if (cdc != null)
            {             
                if (MessageBox.Show(Translator.Translate("Wollen Sie den Klient '{0}' wirklich archivieren?", cdc.FirstName + " " + cdc.LastName), "Archivieren", MessageBoxButton.YesNo, MessageBoxImage.Exclamation) == MessageBoxResult.Yes)
                {
                    ServiceFacade.DoCustomerServiceAsync(
                        s =>
                            {
                                s.ArchiveCustomer(cdc.CustomerOid, cdc.CustomerVersion);
                                return cdc;
                            }, 
                        cb => cb.CustomerVersion++);

                    Cache.GetInstance().ClearSupportConceptTree();
                    return true;
                }                         
            }

            return false;
        }

        private void mainNavigationView_CreateNewObject()
        {
            VMFactory.CreateCustomerVMAsync(cb => this.Dispatch(() => MainControl.NavigateTo(new CustomerView(cb) {ParentView = this})));
        }

        private bool mainNavigationView_DeleteObject(IFilterableDC obj)
        {
            var cdc = obj as CompactCustomerDC;
            if (cdc != null)
            {
                if (MessageBox.Show(Translator.Translate("Wollen Sie den Klient '{0}' wirklich löschen?", cdc.FirstName + " " + cdc.LastName), "Löschen", MessageBoxButton.YesNo, MessageBoxImage.Exclamation) == MessageBoxResult.Yes)
                {

                    CustomerInfoDC details = ServiceFacade.DoOperationsServiceSync(s => s.GetCustomerInfosForCustomerOid(cdc.CustomerOid));
                    bool delete = true;
                    if (details != null)
                    {
                        if (!string.IsNullOrEmpty(details.CurrentSupportConcept) && details.CurrentSupportConcept.ToLower() != Translator.Translate("Kein aktueller Hilfeplan").ToLower())
                        {
                            if (MessageBox.Show(Translator.Translate("Für Klient '{0}' wurde bereits ein Hilfeplan angelegt. Der Hilfeplan wird dadurch auch gelöscht!\n Möchten Sie wirklich fortfahren und den Klient löschen?", cdc.FirstName + " " + cdc.LastName), "Löschen", MessageBoxButton.YesNo, MessageBoxImage.Exclamation) == MessageBoxResult.No)
                            {
                                delete = false;
                            }
                        }
                        
                    }
                    if (delete)
                    {
                       
                        ServiceFacade.DoCustomerServiceAsync(
                            s =>
                            {
                                s.DeactivateCustomer(cdc.CustomerOid, cdc.CustomerVersion);
                                return cdc;
                            }, cb => cb.CustomerVersion++);

                        Cache.GetInstance().ClearSupportConceptTree();
                        return true;
                       
                    }
                }
            }

            return false;
        }

        private void mainNavigationView_ExcelExport(object sender, EventArgs<IEnumerable<IFilterableDC>> e)
        {
			var path = BeWoApp.GetAndCreateUserAppDataPath() + Translator.Translate("\\Klienten.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.PrepareExcelFileCustomerExport(mainNavigationView.DownloadLinkEngine.ExcelFileId, e.Data.Cast<CompactCustomerDC>().Select(c => c.CustomerOid).ToList()), sf.FileName));
        }

        private void mainNavigationView_OpenObject(IFilterableDC obj)
        {
            var cdc = obj as CompactCustomerDC;
            if (cdc != null)
            {
                VMFactory.CreateCustomerVMAsync(cdc.CustomerOid, cb => this.Dispatch(() => MainControl.NavigateTo(new CustomerView(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.DoCustomerServiceAsync(
					s => s.GetAllCustomersCompact(BeWoApp.LoggedOnUser.Employee.EmployeeOid),
                    r => this.Dispatch(delegate
                    {
                        objectList = r;
                        
                        mainNavigationView.ShowSearchResult(objectList);
                    }));

                ServiceFacade.DoCustomerServiceAsync(s => s.GetLastOpenedCustomers(),
                                                     r =>
                                                     this.Dispatch(delegate
                                                        {
                                                                if(BeWoApp.LoggedOnUser.HasRight(UserRightType.CustomerView_View) || BeWoApp.LoggedOnUser.HasRight(UserRightType.ViewAll))
                                                                {
                                                                    recentList = r;
                                                                }
                                                                else if(BeWoApp.LoggedOnUser.HasRight(UserRightType.Customer_ViewMyCustomers))
                                                                {
                                                                    recentList = r.Where(w => BeWoApp.LoggedOnEmployee.RelatedCustomers.Select(s3 => s3.Customer.CustomerOid).Contains(w.CustomerOid));
                                                                }
                                                                else
                                                                {
                                                                    recentList = new List<IFilterableDC>();
                                                                }

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

	    private void Hyperlink_OnRequestNavigate(object sender, RequestNavigateEventArgs e)
	    {
			BeWoUtils.NavigateToReportUri(((Hyperlink)sender).NavigateUri.ToString(), "Druckvorschau");
	    }

        private void MainNavigationView_OnOpenMailMergeWindow(List<IFilterableDC> allCustomers, IFilterableDC selectedCustomer)
        {
            var mmw = new MailMergeWindow(this, typeof(CustomerDC), objectList.ToList(), selectedCustomer) { Sorter = new CustomerSorter() };
            
            mmw.Show();
        }

	    private void Hyperlink_Reaktivieren_Click(object sender, RoutedEventArgs e)
	    {
	        var customer = (CompactCustomerDC) ((Hyperlink)sender).Tag;

            if (MessageBox.Show(Translator.Translate("Wollen Sie den Klient '{0}' wirklich reaktivieren?", customer.FirstName + " " + customer.LastName), "Reaktivieren", MessageBoxButton.YesNo, MessageBoxImage.Exclamation) == MessageBoxResult.No)
		    {
			    return;
		    }

		    ServiceFacade.DoCustomerServiceAsync(s =>
		    {
				s.ReactivateCustomer(customer.CustomerOid, customer.CustomerVersion);
			    return customer;
		    }, cb => cb.CustomerVersion++);

			Cache.GetInstance().ClearSupportConceptTree();

	        customer.ActivationType = ActivationTypeId.Active;
			var context = mainNavigationView.objectListBox.DataContext;
			mainNavigationView.objectListBox.DataContext = null;
			mainNavigationView.objectListBox.DataContext = context;
	    }

        private void Hyperlink_Anonymize_Click(object sender, RoutedEventArgs e)
        {
            var customer = (CompactCustomerDC) ((Hyperlink) sender).Tag;

            var dialog = new MessageDialog(() =>
            {
                this.Dispatch(() =>
                {
                    ServiceFacade.DoOperationsServiceAsync(s =>
                    {
                        s.AnonymizeCustomer(customer.CustomerOid);
                    }, () =>
                    {
                        ReloadData(true);
                    });
                });
            });

            ServiceFacade.DoOperationsServiceAsync(s => s.GetMessageFromServer(TableID.Customer, customer.CustomerOid, MessageType.Anonymization), xaml =>
            {
                this.Dispatch(() =>
                {
                    dialog.SetXaml(xaml);
                    dialog.ShowDialog();
                });
            });
        }

        private void Hyperlink_Delete_For_Good_Click(object sender, RoutedEventArgs e)
        {
            var customer = (CompactCustomerDC) ((Hyperlink) sender).Tag;

            var dialog = new MessageDialog(() =>
            {
                this.Dispatch(() =>
                {
                    ServiceFacade.DoOperationsServiceAsync(s =>
                    {
                        s.DeleteCustomerForGood(customer.CustomerOid);
                    }, () => { ReloadData(true); });
                });
            });

            ServiceFacade.DoOperationsServiceAsync(s => s.GetMessageFromServer(TableID.Customer, customer.CustomerOid, MessageType.DeleteForGood), xaml =>
            {
                this.Dispatch(() =>
                {
                    dialog.SetXaml(xaml);
                    dialog.ShowDialog();
                });
            });
        }
    }
}