using System;
using System.Linq;
using Comal.Classes;
using InABox.Core;
using InABox.DynamicGrid;
using InABox.WPF;
using InABox.Wpf;
using System.Threading;

namespace PRSDesktop
{
    public class JobFormGrid : DynamicEntityFormGrid<JobForm, Job, JobLink>, IMasterDetailControl<Job,JobForm>, IDataModelSource
    {
        protected override Job Entity { get => Master; set => Master = value; }

        public Job? Master { get; set; }

        public Filter<JobForm> MasterDetailFilter => (Master?.ID ?? Guid.Empty) != Guid.Empty
            ? new Filter<JobForm>(x => x.Parent.ID).IsEqualTo(Master.ID)
            : new Filter<JobForm>().None();
        
        public event DataModelUpdateEvent? OnUpdateDataModel;

        public string SectionName => "Job Forms";

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

        public JobFormGrid()
        {
        }

        protected override void DoReconfigure(DynamicGridOptions options)
        {
            base.DoReconfigure(options);
            options.SelectColumns = true;
            options.FilterRows = true;

            EditOnAdd = true;
        }

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

        protected override bool CanCreateItems()
        {
            return base.CanCreateItems() && Master != null;
        }

        public override JobForm CreateItem()
        {
            var result = base.CreateItem();
            result.Parent.ID = Master?.ID ?? Guid.Empty;
            result.Parent.Synchronise(Master ?? new Job());
            return result;
        }
    }
}