using System;
using CaeMesh;
using CsvHelper;
using CsvHelper.Configuration;
using System.Collections.Generic;
using System.Globalization;
using System.IO;

namespace RBFMorphing
{
    [Serializable]
    public class ImportedNodes : AbstractClass
    {
        private readonly List<FeNode> _nodes;

        public ImportedNodes() : base(EnumMorphMethod.ImportFile)
        {
            _nodes = new List<FeNode>();
        }

        public override List<FeNode> GetNodes()
        {
            return _nodes;
        }

        public override int[] Labels => null;

        public override int Length => _nodes.Count;

        private sealed class NodeMap: ClassMap<FeNode>
        {
            public NodeMap()
            {
                Map(n => n.Id).Name("id", "ID", "Id", "iD");
                Map(n => n.X).Name("x", "X");
                Map(n => n.Y).Name("y", "Y");
                Map(n => n.Z).Name("z", "Z");
            }
        }

        public void LoadCsvFile(string fullPath)
        {
            using (var reader = new StreamReader(fullPath))
            using (var csv = new CsvReader(reader, CultureInfo.InvariantCulture))
            {
                csv.Context.RegisterClassMap<NodeMap>();

                foreach (var record in csv.GetRecords<FeNode>())
                {
                    _nodes.Add(record);
                }
            }
        }
    }
}