using CaeKnowledge.Data;
using LiteDB;
using System.Collections.Generic;
using System.ComponentModel;
using System.IO;
using System.Linq;

namespace CaeKnowledge.View
{
    internal class CutterConverter : 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);
            }

            // Connect to LiteDB and fetch distinct values
            using (var db = new LiteDatabase(fullPath))
            {
                var col = db.GetCollection<Cutter>("cutters");

                if (col.Count() > 0)
                {
                    items.AddRange(col.Query().OrderBy(x => x.Cid).Select(x => x.Cid).ToEnumerable());
                }
            }

            return new StandardValuesCollection(items);
        }
    }
}