using System;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using Comal.Classes;
using InABox.Clients;
using InABox.Core;
using InABox.DynamicGrid;

namespace PRSDesktop
{
    internal class JobBillOfMaterialsGrid : DynamicDataGrid<JobBillOfMaterials>, IJobControl
    {
        private readonly Button _approve;

        public JobBillOfMaterialsGrid()
        {
            HiddenColumns.Add(x => x.Approved);
            HiddenColumns.Add(x => x.Job.ID);
            if (Security.IsAllowed<CanApproveBillsOfMaterials>())
                _approve = AddButton("Approve", null, ApproveClick);
        }

        protected override void DoReconfigure(FluentList<DynamicGridOption> options)
        {
            base.DoReconfigure(options);
            options.AddRange(
                DynamicGridOption.AddRows,
                DynamicGridOption.EditRows,
                DynamicGridOption.DeleteRows,
                DynamicGridOption.FilterRows,
                DynamicGridOption.SelectColumns,
                DynamicGridOption.RecordCount
            );
        }

        public Job Job { get; set; }
        public JobPanelSettings Settings { get; set; }

        private bool ApproveClick(Button button, CoreRow[] rows)
        {
            if (rows == null || !rows.Any())
            {
                MessageBox.Show("Please select a row first!");
                return false;
            }

            var bom = rows[0].ToObject<JobBillOfMaterials>();
            bom.Approved = bom.Approved.IsEmpty() ? DateTime.Now : DateTime.MinValue;
            UpdateRow<DateTime?>(rows[0], "Approved", bom.Approved.IsEmpty() ? null : bom.Approved, true);
            new Client<JobBillOfMaterials>().Save(bom, bom.Approved.IsEmpty() ? "Cleared Approval" : "Marked as Approved");
            UpdateButton(_approve, null,
                _approve.IsEnabled && !bom.Approved.IsEmpty() ? "Unapprove" : "Approve");
            return false;
        }

        protected override void SelectItems(CoreRow[] rows)
        {
            base.SelectItems(rows);
            if (rows?.Length == 1)
            {
                _approve.Visibility = Visibility.Visible;
                UpdateButton(_approve, null,
                    _approve.IsEnabled && !rows[0].Get<JobBillOfMaterials, DateTime>(c => c.Approved).IsEmpty() ? "Unapprove" : "Approve");
            }
            else
                _approve.Visibility = Visibility.Collapsed;
        }

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

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