using System;
using System.Collections.Generic;
using System.Linq;
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 Syncfusion.Linq;

namespace PRSDesktop
{
    public delegate void DeliveryChangedEvent(object sender);

    public class DeliveryList : DynamicDataGrid<Delivery>, IJobControl
    {
        private readonly BitmapImage docs = PRSDesktop.Resources.doc_png.AsBitmapImage();

        private bool ShowAll;

        public DeliveryList()
        {
            Options.BeginUpdate();
            Options.AddRange(DynamicGridOption.RecordCount, DynamicGridOption.AddRows, DynamicGridOption.EditRows, DynamicGridOption.SelectColumns,
                DynamicGridOption.FilterRows);
            if (Security.CanDelete<Delivery>())
                Options.Add(DynamicGridOption.DeleteRows);
            Options.EndUpdate();

            ActionColumns.Add(new DynamicImageColumn(DocumentsImage, DocumentsClick) { Position = DynamicActionColumnPosition.Start });
            //ActionColumns.Add(new DynamicImageColumn(BookImage, BookClick));

            HiddenColumns.Add(x => x.Notes);
            HiddenColumns.Add(x => x.Job.ID);
            HiddenColumns.Add(x => x.Job.Deleted);
            HiddenColumns.Add(x => x.Completed);
            HiddenColumns.Add(x => x.Documents);
            HiddenColumns.Add(x => x.Contact.ID);
            HiddenColumns.Add(x => x.Contact.Deleted);
            HiddenColumns.Add(x => x.Contact.Name);
                
            AddButton("Show All", null, ToggleCompleted);

            OnCustomiseEditor += CustomiseEditor;
        }

        public DateTime BookingSlot { get; set; }
        public Guid EmployeeID { get; set; }
        public Guid ParentID { get; set; }
        public JobPanelSettings Settings { get; set; }

        public event DeliveryChangedEvent DeliveryChanged;

        private void CustomiseEditor(IDynamicEditorForm sender, Delivery[]? items, DynamicGridColumn column, BaseEditor editor)
        {
            if (column.ColumnName.Equals("Completed"))
            {
                editor.Editable = Security.IsAllowed<CanSkipDeliveryPhotos>() ? Editable.Enabled : Editable.Disabled;
            }
            else if (column.ColumnName.Equals("Contact.ID"))
            {
                editor.Editable = Editable.Hidden;
            }
            else if (column.ColumnName.Equals("Contact.Name"))
            {
                editor.Editable = Editable.Enabled;
                (editor as TextBoxEditor).Buttons = new[]
                {
                    new(items?.FirstOrDefault(), "Select", 50, ContactNameLookup, true),
                    new EditorButton(items?.FirstOrDefault(), "Clear", 50, ContactNameClear, true)
                };
            }
        }

        private void ContactNameClear(object editor, object? item)
        {
            if (item is not Delivery delivery)
                return;

            delivery.Contact.ID = Guid.Empty;
            delivery.Address.Street = "";
            delivery.Address.City = "";
            delivery.Address.State = "";
            delivery.Address.PostCode = "";

            if(editor is BaseDynamicEditorControl baseEditor)
            {
                baseEditor.SetValue(baseEditor.ColumnName, "");
            }
        }

        private void ContactNameLookup(object editor, object? item)
        {
            var contacts = new MultiSelectDialog<Contact>(
                null,
                null,
                false
            );

            if (contacts.ShowDialog() != true)
                return;

            var contact = contacts.Items().FirstOrDefault();
            if (contact == null)
                return;
            if (item is not Delivery delivery)
                return;

            delivery.Contact.ID = contact.ID;
            delivery.Address.Street = contact.Address.Street;
            delivery.Address.City = contact.Address.City;
            delivery.Address.State = contact.Address.State;
            delivery.Address.PostCode = contact.Address.PostCode;

            if (editor is BaseDynamicEditorControl baseEditor)
            {
                baseEditor.SetValue(baseEditor.ColumnName, contact.Name);
            }
            //SetEditorValue(item, "Contact.Name", contact.Name);
            //SetEditorValue(item,"Address.Street",contact.Address.Street);
            //SetEditorValue(item, "Address.City",contact.Address.City);
            //SetEditorValue(item, "Address.State",contact.Address.State);
            //SetEditorValue(item, "Address.PostCode",contact.Address.PostCode);
        }

        protected override Dictionary<string, object?> EditorValueChanged(IDynamicEditorForm editor, Delivery[] items, string name, object value)
        {
            var result = base.EditorValueChanged(editor, items, name, value);
            if (name.Equals("Job.ID"))
            {
                items.ForEach(item => { item.Contact.ID = Guid.Empty; });
                editor.SetEditorValue("Contact.Name", "");
            }
            else if (name.Equals("Contact.Name"))
            {
                var street = "";
                var city = "";
                var state = "";
                var postcode = "";
                if (items.First().Contact.IsValid())
                {
                    street = items.First().Address.Street;
                    city = items.First().Address.City;
                    state = items.First().Address.State;
                    postcode = items.First().Address.PostCode;
                }
                else
                {
                    CoreRow row = null;
                    if (items.First().ID != Guid.Empty)
                    {
                        row = new Client<Job>().Query(
                            new Filter<Job>(x => x.ID).IsEqualTo(items.First().Job.ID),
                            new Columns<Job>(x => x.ID, x => x.SiteAddress.Street, x => x.SiteAddress.City, x => x.SiteAddress.State,
                                x => x.SiteAddress.PostCode)
                        ).Rows.FirstOrDefault();
                        street = row != null ? row.Get<Job, string>(x => x.SiteAddress.Street) : "";
                        city = row != null ? row.Get<Job, string>(x => x.SiteAddress.City) : "";
                        state = row != null ? row.Get<Job, string>(x => x.SiteAddress.State) : "";
                        postcode = row != null ? row.Get<Job, string>(x => x.SiteAddress.PostCode) : "";
                    }
                }

                editor.SetEditorValue("Address.Street", street);
                editor.SetEditorValue("Address.City", city);
                editor.SetEditorValue("Address.State", state);
                editor.SetEditorValue("Address.PostCode", postcode);
            }

            return result;
        }

        private bool DocumentsClick(CoreRow arg)
        {
            if (arg == null)
                return false;

            var docs = new List<IEntityDocument>();
            using (new WaitCursor())
            {
                var deliveryid = arg.Get<Delivery, Guid>(x => x.ID);
                var table = new Client<DeliveryDocument>().Query(
                    new Filter<DeliveryDocument>(x => x.EntityLink.ID).IsEqualTo(deliveryid)
                );
                foreach (var row in table.Rows)
                    docs.Add(row.ToObject<DeliveryDocument>());
            }

            if (docs.Any())
            {
                var editor = new DocumentEditor(docs.ToArray());
                //editor.PrintAllowed = Security.IsAllowed<CanPrintFactoryFloorDrawings>();
                editor.SaveAllowed = Security.IsAllowed<CanSaveFactoryFloorDrawings>();
                editor.ShowDialog();
            }
            else
            {
                MessageBox.Show("No Documents Available!");
            }

            return false;
        }

        private BitmapImage DocumentsImage(CoreRow arg)
        {
            if (arg == null)
                return docs;
            return arg.Get<Delivery, int>(x => x.Documents) > 0 ? docs : null;
        }

        private AssignmentGrid ag = null;
        
        public bool CreateBooking(CoreRow row, Guid employeeid, DateTime time)
        {
            Logger.Send(LogType.Information, ClientFactory.UserID, string.Format("{0:dd-MMM-yy hh-mm-ss} -> {1}", BookingSlot, EmployeeID));
            var assignment = new Assignment
            {
                Date = time.Date,
                Description = string.Format("Delivery #{0}", row.Get<Delivery, int>(x => x.Number))
            };
            assignment.Booked.Start = time.TimeOfDay;
            assignment.Booked.Finish = time.TimeOfDay.Add(new TimeSpan(2, 0, 0));
            assignment.Delivery.ID = row.Get<Delivery, Guid>(x => x.ID);
            assignment.EmployeeLink.ID = employeeid;
            assignment.JobLink.ID = row.Get<Delivery, Guid>(x => x.Job.ID);
            Logger.Send(LogType.Information, ClientFactory.UserID, "- Creating Assignment Grid");
            if (ag == null)
                ag = new AssignmentGrid();
            Logger.Send(LogType.Information, ClientFactory.UserID, "- Editing Assignment");
            if (ag.EditItems(new[] { assignment }))
            {
                using (new WaitCursor())
                {
                    new Client<Assignment>().Save(assignment, "Created for Delivery");
                    var del = new Client<Delivery>().Load(new Filter<Delivery>(x => x.ID).IsEqualTo(row.Get<Delivery, Guid>(x => x.ID)))
                        .FirstOrDefault();
                    del.Assignment.ID = assignment.ID;
                    new Client<Delivery>().Save(del, "Booked via Scheduler");
                }
                DeliveryChanged?.Invoke(this);
                return true;
            }

            Logger.Send(LogType.Information, ClientFactory.UserID, "- Cancelled Edit");
            return false;           
        }
        
        private bool BookClick(CoreRow arg)
        {
            return CreateBooking(arg, EmployeeID, BookingSlot);
        }

        private BitmapImage BookImage(CoreRow arg)
        {
            if (arg == null)
            {
                Logger.Send(LogType.Information, ClientFactory.UserID, "BookImage: Row is null!");
                return null;
            }

            Logger.Send(LogType.Information, ClientFactory.UserID,
                string.Format("BookImage {0} -> {1:dd-MMM-yy hh-mm-ss}", arg.Get<Delivery, int>(x => x.Number), BookingSlot));

            if (BookingSlot.IsEmpty())
            {
                Logger.Send(LogType.Information, ClientFactory.UserID, "BookImage: BookingSlot is Empty!");
                return null;
            }

            if (arg.Get<Delivery, DateTime>(x => x.Assignment.Date).IsEmpty())
            {
                Logger.Send(LogType.Information, ClientFactory.UserID, "BookImage: Assignment Date is Empty!");
                return PRSDesktop.Resources.rightarrow.AsBitmapImage();
            }

            Logger.Send(LogType.Information, ClientFactory.UserID,
                string.Format("BookImage Assignment Date is {0:dd-MMM-yy hh-mm-ss}", arg.Get<Delivery, DateTime>(x => x.Assignment.Date)));

            return null;
        }

        private bool ToggleCompleted(Button arg1, CoreRow[] arg2)
        {
            ShowAll = !ShowAll;
            UpdateButton(arg1, null, !ShowAll ? "Show All" : "Hide Completed");
            return true;
        }

        protected override void Reload(Filters<Delivery> criteria, Columns<Delivery> columns, ref SortOrder<Delivery> sort,
            Action<CoreTable, Exception> action)
        {
            if (ParentID != Guid.Empty)
                criteria.Add(new Filter<Delivery>(x => x.Job.ID).IsEqualTo(ParentID));
            if (!ShowAll)
                criteria.Add(new Filter<Delivery>(x => x.Completed).IsEqualTo(DateTime.MinValue));
            base.Reload(criteria, columns, ref sort, action);
        }

        protected override void SelectItems(CoreRow[] rows)
        {
            base.SelectItems(rows);
        }
    }
}