using System;
using System.Linq;
using System.Windows;
using System.Windows.Media.Imaging;
using Comal.Classes;
using InABox.Clients;
using InABox.Core;
using InABox.DynamicGrid;
using InABox.WPF;

namespace PRSDesktop
{
    public class CustomerContactGrid : DynamicDataGrid<CustomerContact>, ICustomerGrid
    {
        
        private readonly BitmapImage tick = PRSDesktop.Resources.tick.AsBitmapImage();
        
        public CustomerContactGrid()
        {
            HiddenColumns.Add(x=>x.Customer.DefaultContact.ID);
            HiddenColumns.Add(x=>x.Contact.ID);
            HiddenColumns.Add(x=>x.Customer.ID);
            ActionColumns.Add(new DynamicImageColumn(IsDefaultImage, SelectDefaultAction) { Position = DynamicActionColumnPosition.Start });
        }
        
        protected override void DoReconfigure(FluentList<DynamicGridOption> options)
        {
            base.DoReconfigure(options);
            options.AddRange(
                DynamicGridOption.AddRows,
                DynamicGridOption.EditRows,
                DynamicGridOption.SelectColumns,
                DynamicGridOption.DeleteRows
            );
        }
        
        private BitmapImage? IsDefaultImage(CoreRow? row)
        {
            return row == null
                ? tick
                : row.Get<CustomerContact, Guid>(x => x.Customer.DefaultContact.ID) == row.Get<CustomerContact, Guid>(x => x.Contact.ID)
                    ? tick
                    : null;
        }

        private bool SelectDefaultAction(CoreRow? row)
        {
            if ((row == null) ||row.Get<CustomerContact, Guid>(x => x.Customer.DefaultContact.ID) == row.Get<CustomerContact, Guid>(x => x.Contact.ID))
                return false;
            using (new WaitCursor())
            {
                var customer = new Client<Customer>().Query(
                    new Filter<Customer>(x => x.ID).IsEqualTo(row.Get<CustomerContact, Guid>(x => x.Customer.ID)),
                    new Columns<Customer>(x => x.ID).Add(x => x.DefaultContact.ID)
                ).Rows.FirstOrDefault()?.ToObject<Customer>();
                if (customer != null)
                {
                    customer.DefaultContact.ID = row.Get<CustomerContact, Guid>(x => x.Contact.ID);
                    new Client<Customer>().Save(customer, "Updated Default Contact");
                    return true;
                }
            }
            return false;
        }

        public Customer Customer { get; set; }

        protected override void Reload(Filters<CustomerContact> criteria, Columns<CustomerContact> columns, ref SortOrder<CustomerContact>? sort, Action<CoreTable?, Exception?> action)
        {
            criteria.Add(new Filter<CustomerContact>(x => x.Customer).LinkValid(Customer.ID));
            base.Reload(criteria, columns, ref sort, action);
        }

        protected override CustomerContact CreateItem()
        {
            var result = base.CreateItem();
            result.Customer.ID = Customer.ID;
            result.Customer.Synchronise(Customer);
            return result;
        }

        protected override BaseEditor? GetEditor(object item, DynamicGridColumn column)
        {
            if (column.ColumnName.Equals("Customer.ID"))
                return new NullEditor();
            return base.GetEditor(item, column);
        }

        protected override void DoAdd(bool OpenEditorOnDirectEdit = false)
        {
            if (Customer.ID == Guid.Empty)
                MessageBox.Show("Please select a Customer first!");
            else
                base.DoAdd();
        }
    }
}