prs/prs.desktop/Panels/Jobs/Picking Lists/JobPickingListItemGrid.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Reactive.Linq;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using Comal.Classes;
using InABox.Clients;
using InABox.Core;
using InABox.DynamicGrid;
using InABox.Wpf;
using InABox.WPF;
using PRSDesktop.Panels.Requisitions;

namespace PRSDesktop;

internal class JobPickingListItemGrid : DynamicDataGrid<RequisitionItem>, ISpecificGrid, IMasterDetailControl<Requisition, RequisitionItem>
{
    public Requisition? Master { get; set; }

    private Task<List<Product>>? _products;

    public Filter<RequisitionItem> MasterDetailFilter => Master != null
        ? new Filter<RequisitionItem>(x => x.RequisitionLink.ID).IsEqualTo(Master.ID)
        : new Filter<RequisitionItem>().None();

    protected override void Init()
    {
        base.Init();

        HiddenColumns.Add(x => x.EditType);
        HiddenColumns.Add(x => x.Done);
    }

    protected override void Reload(Filters<RequisitionItem> criteria, Columns<RequisitionItem> columns,
        ref SortOrder<RequisitionItem>? sort,
        Action<CoreTable?, Exception?> action)
    {
        criteria.Add(MasterDetailFilter);
        base.Reload(criteria, columns, ref sort, action);
    }

    private List<Product> GetProducts()
    {
        _products ??= Task.Run(() =>
        {
            return Client.Query(null, new Columns<Product>(x => x.Code).Add(x => x.Name).Add(x => x.ID)).ToList<Product>();
        });
        return _products.Result;
    }

    private void DoEdit(CoreRow? row)
    {
        var item = row?.ToObject<RequisitionItem>();
        if(item is null)
        {
            if (!CanCreateItems())
                return;
            item = CreateItem();
        }

        var editor = new RequisitionItemEditor(GetProducts(), item, false);
        if(editor.ShowDialog() == true && editor.Result is not null)
        {
            Refresh(false, true);
            DoChanged();
        }
    }

    protected override void DoEdit()
    {
        var rows = SelectedRows;
        if (rows.Length != 1) return;

        if (rows[0].Get<RequisitionItem, bool>(x => x.Done))
        {
            base.DoEdit();
        }
        else
        {
            DoEdit(rows[0]);
        }
    }
    protected override void DoAdd(bool OpenEditorOnDirectEdit = false)
    {
        DoEdit(null);
    }

    public override void InitialiseEditorForm(IDynamicEditorForm editor, RequisitionItem[] items, Func<Type, CoreTable?>? pageDataHandler = null, bool preloadPages = false)
    {
        base.InitialiseEditorForm(editor, items, pageDataHandler, preloadPages);

        if(items.Any(x => x.Done))
        {
            editor.ReadOnly = true;
        }
    }

    protected override bool CanCreateItems()
    {
        return base.CanCreateItems() &&  (Master?.ID ?? Guid.Empty) != Guid.Empty;
    }

    public override RequisitionItem CreateItem()
    {
        var result = base.CreateItem();
        result.RequisitionLink.ID = Master?.ID ?? Guid.Empty;
        result.RequisitionLink.Synchronise(Master ?? new Requisition());
        result.JobLink.ID = Master?.JobLink.ID ?? Guid.Empty;
        result.JobLink.Synchronise(Master?.JobLink ?? new JobLink());
        return result;
    }
}