using System;
using System.Linq;
using System.Linq.Expressions;
using InABox.Core;

namespace Comal.Classes
{
    public class QuoteDiagramLink : EntityLink<QuoteDiagram>
    {
        [NullEditor]
        public override Guid ID { get; set; }

        [TextBoxEditor(Editable = Editable.Hidden)]
        public string Description { get; set; }
    }

    [UserTracking(typeof(Quote))]
    public class QuoteDiagram : Entity, IRemotable, IPersistent, IOneToMany<Quote>, IStringAutoIncrement<QuoteDiagram>, ILicense<QuotesManagementLicense>
    {
        [EntityRelationship(DeleteAction.Cascade)]
        public QuoteLink Quote { get; set; }

        public string Number { get; set; }

        public string Description { get; set; }

        private class QuoteDocumentLookup : LookupDefinitionGenerator<QuoteDocument, QuoteDiagram>
        {
            public override Filter<QuoteDocument> DefineFilter(QuoteDiagram[] items)
            {
                if (items == null || !items.Any())
                    return LookupFactory.DefineFilter<QuoteDocument>();
                return new Filter<QuoteDocument>(x => x.EntityLink.ID).IsEqualTo(items.First().Quote.ID);
            }

            public override Columns<QuoteDiagram> DefineFilterColumns()
                => Columns.None<QuoteDiagram>().Add(x => x.Quote.ID);
        }
        [LookupDefinition(typeof(QuoteDocumentLookup))]
        public QuoteDocumentLink Document { get; set; }

        public int DocumentPage { get; set; }

        public string Data { get; set; }

        public string Notes { get; set; }

        public Expression<Func<QuoteDiagram, string>> AutoIncrementField() => x => x.Number;
        public Filter<QuoteDiagram> AutoIncrementFilter() => null;
        public String AutoIncrementPrefix() => "";
        public string AutoIncrementFormat() => "{0:D4}";
        public int AutoIncrementDefault() => 1;
    }
}