using LiteDB;
using System.Collections.Generic;
using System.ComponentModel;
using System.IO;

namespace CaeKnowledge.View
{
    public class ElasticWithDensityConverter : StringConverter
    {
        public override bool GetStandardValuesSupported(ITypeDescriptorContext context) => true;
        public override bool GetStandardValuesExclusive(ITypeDescriptorContext context) => true;

        public override StandardValuesCollection GetStandardValues(ITypeDescriptorContext context)
        {
            var items = new List<string>();

            var fullPath = CaeGlobals.Tools.GetLiteDatabase();

            if (fullPath == null || !File.Exists(fullPath))
            {
                return new StandardValuesCollection(items);
            }

            using(var db = new LiteDatabase(fullPath))
            {
                var col = db.GetCollection<ViewElasticWithDensity>("elastic_with_densities");
                items.AddRange(col.Query().Select(x => x.Name).ToEnumerable());

                return new StandardValuesCollection(items);
            }
        }
    }
}