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

namespace Comal.Classes
{
    public class QuoteDocumentLookups : EntityLookup<QuoteDocument>, ILookupDefinition<QuoteDocument, QuoteDiagram>
    {
        public Filter<QuoteDocument> DefineFilter(QuoteDiagram[] items)
        {
            if (items == null || !items.Any())
                return DefineFilter();
            return new Filter<QuoteDocument>(x => x.EntityLink.ID).IsEqualTo(items.First().Quote.ID);
        }

        Columns<QuoteDiagram> ILookupDefinition<QuoteDocument, QuoteDiagram>.DefineFilterColumns()
            => new Columns<QuoteDiagram>(x => x.Quote.ID);

        public override Columns<QuoteDocument> DefineColumns()
        {
            return new Columns<QuoteDocument>(
                x => x.ID,
                x => x.DocumentLink.ID,
                x => x.DocumentLink.FileName
            );
        }

        public override Filter<QuoteDocument> DefineFilter()
        {
            return new Filter<QuoteDocument>(x => x.ID).IsEqualTo(Guid.Empty);
        }

        public override SortOrder<QuoteDocument> DefineSortOrder()
        {
            return new SortOrder<QuoteDocument>(x => x.DocumentLink.FileName);
        }
    }
}