using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media.Imaging;
using Comal.Classes;
using InABox.Clients;
using InABox.Core;
using InABox.DynamicGrid;
using InABox.WPF;
using InABox.Wpf;
using System.ComponentModel;
using sun.net.www;
using Syncfusion.Windows.Controls.RichTextBoxAdv;
using static ICSharpCode.AvalonEdit.Document.TextDocumentWeakEventManager;
using SelectionChangedEventArgs = System.Windows.Controls.SelectionChangedEventArgs;

namespace PRSDesktop;

/// <summary>
///     Interaction logic for NotificationPanel.xaml
/// </summary>
public partial class NotificationPanel : UserControl, IPanel<Notification>
{
    private readonly Button Archive;
    private readonly Button AttachToJob;
    private readonly Button CreateDelivery;
    private readonly Button CreateRequi;
    private readonly Button CreateSetout;
    private readonly Button CreateTask;

    private readonly List<Tuple<string, BitmapImage>> folders = new()
    {
        new("Inbox", PRSDesktop.Resources.download.AsBitmapImage()),
        new("Sent", PRSDesktop.Resources.upload.AsBitmapImage()),
        new("Archive", PRSDesktop.Resources.box.AsBitmapImage())
    };

    private readonly Button Forward;

    private readonly Employee me = new Client<Employee>().Load(new Filter<Employee>(x => x.UserLink.ID).IsEqualTo(ClientFactory.UserGuid))
        .FirstOrDefault();

    private readonly DynamicDataGrid<Notification> Notifications;
    private readonly Button Reopen;

    //Button WriteNew = null;
    private readonly Button Reply;
    private readonly Button ViewEntity;
    private readonly Button ViewForm;
    private readonly Button ViewJob;

    public NotificationPanel()
    {
        InitializeComponent();
        Notifications = new DynamicDataGrid<Notification>();
        Notifications.HiddenColumns.Add(x => x.Sender.ID);
        Notifications.HiddenColumns.Add(x => x.Employee.ID);

        Notifications.HiddenColumns.Add(x => x.Job.ID);

        Notifications.HiddenColumns.Add(x => x.EntityType);
        Notifications.HiddenColumns.Add(x => x.EntityID);

        //Notifications.HiddenColumns.Add(x => x.Kanban.ID);
        //Notifications.HiddenColumns.Add(x => x.Setout.ID);
        //Notifications.HiddenColumns.Add(x => x.Requisition.ID);
        //Notifications.HiddenColumns.Add(x => x.Delivery.ID);
        //Notifications.HiddenColumns.Add(x => x.LeaveRequestLink.ID);

        Notifications.HiddenColumns.Add(x => x.Closed);

        Notifications.Reconfigure(options => options.AddRange(DynamicGridOption.RecordCount, DynamicGridOption.FilterRows, DynamicGridOption.SelectColumns, DynamicGridOption.MultiSelect));
        Notifications.SetValue(Grid.RowProperty, 0);
        Notifications.SetValue(Grid.ColumnProperty, 1);
        Notifications.Margin = new Thickness(0);
        Notifications.OnReload += Notifications_OnReload;
        Notifications.OnSelectItem += Notifications_OnSelectItem;
        Notifications.OnValidate += Notifications_OnValidate;
        Notifications.OnCreateItem += Notifications_OnCreateItem;

        //WriteNew = CreateButton("Write New", null, WriteNewClick);
        //WriteNew.Visibility = Visibility.Visible;
        //WriteNew.Margin = new Thickness(WriteNew.Margin.Left, WriteNew.Margin.Top, 10.0F, WriteNew.Margin.Bottom);

        Reply = CreateButton("Reply", null, ReplyClick);
        Forward = CreateButton("Forward", null, ForwardClick);

        ViewForm = CreateButton("View Form", null, ViewFormClick);
        ViewEntity = CreateButton("View Item", null, ViewEntityClick);

        AttachToJob = CreateButton("Attach To Job", null, AttachToJobClick);
        ViewJob = CreateButton("View Job", null, ViewJobClick);

        CreateTask = CreateButton("Create Task", null, CreateTaskClick);
        CreateSetout = CreateButton("Create Setout", null, CreateSetoutClick);
        CreateRequi = CreateButton("Create Requi", null, CreateRequiClick);
        CreateDelivery = CreateButton("Create Delivery", null, CreateDeliveryClick);

        Archive = CreateButton("Archive", null, ArchiveClick);
        Archive.Margin = new Thickness(10.0F, Archive.Margin.Top, Archive.Margin.Right, Archive.Margin.Bottom);

        Reopen = CreateButton("Reopen", null, ReopenClick);
        Reopen.Margin = new Thickness(10.0F, Reopen.Margin.Top, Reopen.Margin.Right, Reopen.Margin.Bottom);

        Layout.Children.Add(Notifications);
        Folders.ItemsSource = folders;
    }

    private void Notifications_OnCreateItem(object sender, object item)
    {
        if (item is not Notification notification)
            return;

        notification.Sender.ID = me.ID;
    }

    private void Notifications_OnValidate(object sender, Notification[] items, List<string> errors)
    {
        foreach(var item in items)
        {
            if(!item.Sender.IsValid())
            {
                errors.Add("[Sender] may not be blank!");
            }
            if(!item.Employee.IsValid())
            {
                errors.Add("[Employee] may not be blank!");
            }
        }
    }

    public bool IsReady { get; set; }

    public event DataModelUpdateEvent? OnUpdateDataModel;

    private Button CreateButton(string caption, BitmapImage? umage, DynamicGridButtonClickEvent action)
    {
        var result = Notifications.AddButton(caption, umage, action);
        result.Width = 100.0F;
        result.Visibility = Visibility.Collapsed;
        return result;
    }

    private void Notifications_OnSelectItem(object sender, DynamicGridSelectionEventArgs e)
    {
        var singlerow = e.Rows?.Length == 1;
        //WriteNew.Visibility = (Folders.SelectedIndex == 0) ? Visibility.Visible : Visibility.Collapsed;
        var row = e.Rows?.FirstOrDefault();
        if (row != null)
        {
            var hasjob = row.IsEntityLinkValid<Notification, JobLink>(x => x.Job);
            var entitytype = row.Get<Notification, string>(x => x.EntityType);

            NotificationUtils.MakeVisible(Reply, 0, 5, singlerow, Folders.SelectedIndex == 0 || Folders.SelectedIndex == 2);
            NotificationUtils.MakeVisible(Forward, 5, 10, singlerow);

            NotificationUtils.MakeVisible(ViewForm, 0, 5, singlerow, NotificationUtils.IsDigitalForm(entitytype));
            NotificationUtils.MakeVisible(ViewEntity, 0, 10, singlerow, !string.IsNullOrWhiteSpace(entitytype));
            ViewEntity.Content = string.Format("View {0}", NotificationUtils.GetEntityType(entitytype)?.GetCaption());

            NotificationUtils.MakeVisible(AttachToJob, 0, 10, singlerow, !hasjob);
            NotificationUtils.MakeVisible(ViewJob, 0, 10, singlerow, hasjob, !string.Equals(entitytype, typeof(Job).EntityName()));

            var create = NotificationUtils.MakeVisible(CreateTask, 0, 5, singlerow, !string.Equals(entitytype, typeof(Kanban).EntityName()));
            create = NotificationUtils.MakeVisible(CreateSetout, 0, 5, singlerow, hasjob, !string.Equals(entitytype, typeof(Setout).EntityName())) ||
                     create;
            create =
                NotificationUtils.MakeVisible(CreateRequi, 0, 5, singlerow, hasjob, !string.Equals(entitytype, typeof(Requisition).EntityName())) ||
                create;
            create = NotificationUtils.MakeVisible(CreateDelivery, 0, 5, singlerow, !string.Equals(entitytype, typeof(Delivery).EntityName())) ||
                     create;

            NotificationUtils.MakeVisible(Archive, create ? 10 : 0, 5, Folders.SelectedIndex == 0);

            NotificationUtils.MakeVisible(Reopen, create ? 10 : 0, 5, Folders.SelectedIndex == 2);

            new Client<Notification>().Query(
                new Filter<Notification>(x => x.ID).IsEqualTo(row.Get<Notification, Guid>(x => x.ID)),
                new Columns<Notification>(x => x.Description),
                null,
                (table, error) =>
                {
                    var drow = table?.Rows.FirstOrDefault();
                    var desc = drow?.Get<Notification, string>(x => x.Description)?.Replace("background:NoColor;", "") ?? "";
                    var ms = new MemoryStream(Encoding.ASCII.GetBytes(desc));
                    Dispatcher.Invoke(() =>
                    {
                        Editor.Load(ms, FormatType.Html);
                        //cursor.Dispose();
                    });
                }
            );
        }
        else
        {
            NotificationUtils.MakeVisible(Reply, 0, 0, false);
            NotificationUtils.MakeVisible(Forward, 0, 0, false);

            NotificationUtils.MakeVisible(ViewForm, 0, 0, false);
            NotificationUtils.MakeVisible(ViewEntity, 0, 0, false);

            NotificationUtils.MakeVisible(AttachToJob, 0, 0, false);
            NotificationUtils.MakeVisible(ViewJob, 0, 0, false);

            NotificationUtils.MakeVisible(CreateTask, 0, 0, false);
            NotificationUtils.MakeVisible(CreateSetout, 0, 0, false);
            NotificationUtils.MakeVisible(CreateRequi, 0, 0, false);
            NotificationUtils.MakeVisible(CreateDelivery, 0, 0, false);


            NotificationUtils.MakeVisible(Archive, 0, 0, false);
            NotificationUtils.MakeVisible(Reopen, 0, 0, false);

            var ms = new MemoryStream(Encoding.ASCII.GetBytes(""));
            Editor.Load(ms, FormatType.Html);
        }
    }

    public void AddNotification(Notification notification)
    {
        Dispatcher.Invoke(() =>
        {
            if (IsInbox)
            {
                //Notifications.AddRow(notification);
                Notifications.Refresh(false, true);
            }
        });
    }

    private bool IsInbox => Folders.SelectedIndex == 0;
    private bool IsOutbox => Folders.SelectedIndex == 1;
    private bool IsArchive => Folders.SelectedIndex == 2;

    private void Notifications_OnReload(object sender, Filters<Notification> criteria, Columns<Notification> columns,
        ref SortOrder<Notification>? sortby)
    {
        var filter = new Filter<Notification>(x => x.ID).IsEqualTo(Guid.Empty);
        if (me != null)
        {
            if (IsInbox)
                filter = new Filter<Notification>(x => x.Employee.ID).IsEqualTo(me.ID).And(x => x.Closed).IsEqualTo(DateTime.MinValue);
            else if (IsOutbox)
                filter = new Filter<Notification>(x => x.Sender.ID).IsEqualTo(me.ID);
            else if (IsArchive)
                filter = new Filter<Notification>(x => x.Employee.ID).IsEqualTo(me.ID).And(x => x.Closed).IsNotEqualTo(DateTime.MinValue);
        }

        criteria.Add(filter);
        sortby = new SortOrder<Notification>(x => x.Created, SortDirection.Descending);
    }

    private void Folders_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {
        if (IsReady)
            using (new WaitCursor())
            {
                Notifications.ColumnsTag = folders[Folders.SelectedIndex].Item1;
                Notifications.Refresh(true, true);
            }
    }

    #region IPanel<T> stuff

    public void CreateToolbarButtons(IPanelHost host)
    {
        // host.CreatePanelAction(new PanelAction() { Caption = "Send Notification", Image = PRSDesktop.Resources.email, OnExecute = SendNotificationClick });
    }

    public void Setup()
    {
        Folders.SelectedIndex = 0;
        Notifications.ColumnsTag = folders[Folders.SelectedIndex].Item1;
        Notifications.Refresh(true, false);
    }

    public void Shutdown(CancelEventArgs? cancel)
    {
    }

    public void Refresh()
    {
        Notifications.Refresh(false, true);
    }

    public string SectionName => "Notifications";

    public DataModel DataModel(Selection selection)
    {
        var ids = Notifications.ExtractValues(c => c.ID, selection).ToArray();
        return new BaseDataModel<Notification>(new Filter<Notification>(x => x.ID).InList(ids));
    }

    public Dictionary<Type, CoreTable> DataEnvironment()
    {
        return new Dictionary<Type, CoreTable>
        {
            { typeof(Notification), Notifications.Data }
        };
    }

    public Dictionary<string, object[]> Selected()
    {
        return new Dictionary<string, object[]>();
    }

    #endregion

    #region Actions

    private Guid[] SelectedIDs => Notifications.ExtractValues(x => x.ID, Selection.Selected).ToArray();

    private bool ViewFormClick(Button sender, CoreRow[] rows)
    {
        return NotificationUtils.ViewForm(SelectedIDs);
    }

    private bool ViewEntityClick(Button sender, CoreRow[] rows)
    {
        return NotificationUtils.ViewEntity(SelectedIDs);
    }

    private bool WriteNewClick(Button sender, CoreRow[] rows)
    {
        var form = new NotificationForm();
        return form.ShowDialog() == true;
    }

    private bool ReplyClick(Button sender, CoreRow[] rows)
    {
        return NotificationUtils.ReplyOrForward(SelectedIDs, "RE:", true, Folders.SelectedIndex == 1);
    }

    private bool ForwardClick(Button sender, CoreRow[] rows)
    {
        return NotificationUtils.ReplyOrForward(SelectedIDs, "FW:", false, Folders.SelectedIndex == 1);
    }

    private bool CreateTaskClick(Button sender, CoreRow[] rows)
    {
        return NotificationUtils.CreateTask(SelectedIDs, me.ID);
    }

    private bool AttachToJobClick(Button sender, CoreRow[] rows)
    {
        return NotificationUtils.AttachToJob(SelectedIDs);
    }

    private bool ViewJobClick(Button sender, CoreRow[] rows)
    {
        return NotificationUtils.ViewJob(SelectedIDs);
    }

    private bool CreateSetoutClick(Button sender, CoreRow[] rows)
    {
        return NotificationUtils.CreateSetout(SelectedIDs);
    }

    private bool CreateRequiClick(Button sender, CoreRow[] rows)
    {
        return NotificationUtils.CreateRequi(SelectedIDs, me.ID);
    }

    private bool CreateDeliveryClick(Button sender, CoreRow[] rows)
    {
        return NotificationUtils.CreateDelivery(SelectedIDs);
    }

    private bool ArchiveClick(Button sender, CoreRow[] rows)
    {
        return NotificationUtils.Archive(SelectedIDs);
    }

    private bool ReopenClick(Button sender, CoreRow[] rows)
    {
        return NotificationUtils.Reopen(SelectedIDs);
    }

    public void Heartbeat(TimeSpan time)
    {
    }

    #endregion
}