using System;
using System.Collections.Generic;
using System.Linq;
using Comal.Classes;
using InABox.Core;
using InABox.Mobile;
using System.Diagnostics.CodeAnalysis;

namespace comal.timesheets
{
    public class DigitalFormModel : ListModel<DigitalFormModel,DigitalFormShell,EmployeeDigitalForm>
    {
        public DigitalFormModel(IModelHost host, Func<Filter<EmployeeDigitalForm>> filter, bool transient = false) : base(host, filter, transient)
        {

        }

        public DigitalFormModel(IModelHost host, Func<Filter<EmployeeDigitalForm>> filter, [NotNull] string filename) : base(host, filter, filename)
        {
        }

        protected override void Initialize()
        {
            new DigitalFormLayoutShell();
            new DigitalFormDocumentShell();
            base.Initialize();
            Layouts = new CoreObservableCollection<DigitalFormLayoutShell>();
            _documents = new CoreObservableCollection<IDocumentShell>();
        }

        public CoreObservableCollection<DigitalFormLayoutShell> Layouts { get; private set; }
        
        private CoreObservableCollection<IDocumentShell> _documents;
        
        public IEnumerable<IDocumentShell> Documents => _documents;

        // public override Columns<(.+)> Columns => DigitalFormShell.Columns.Columns;

        public override void BeforeLoad(MultiQuery query)
        {
            base.BeforeLoad(query);
            query.Add(
                new Filter<DigitalFormLayout>(x => x.Form.ID).InQuery(Filter(), x => x.Form.ID)
                    .And(x => x.Type).IsEqualTo(DFLayoutType.Mobile)
                    .And(x => x.Active).IsEqualTo(true),
                DigitalFormLayoutShell.Columns.Columns
            );
            query.Add(
                new Filter<DigitalFormDocument>(x => x.EntityLink.ID).InQuery(Filter(), x => x.Form.ID),
                DigitalFormDocumentShell.Columns.Columns
            );
        }

        public override void AfterLoad(MultiQuery query)
        {
            base.AfterLoad(query);
            
            Layouts.ReplaceRange(
                query.Get<DigitalFormLayout>()
                    .Rows
                    .Select(x => new DigitalFormLayoutShell() { Row = x, Parent = this })
                    .ToArray()
            );
            
            _documents.ReplaceRange(
                query.Get<DigitalFormDocument>()
                    .Rows
                    .Select(x => new DigitalFormDocumentShell() { Row = x, Parent = this })
                    .ToArray()
            );
            
        }
    }
}