#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
 *
 * This file is part of HeuristicLab.
 *
 * HeuristicLab is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * HeuristicLab is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
 */
#endregion

using GeoAPI.Geometries;
using HEAL.Attic;
using HeuristicLab.Persistence.Core;
using HeuristicLab.Persistence.Interfaces;
using SharpMap.Data;
using SharpMap.Data.Providers;
using System;
using System.Collections.Generic;
using System.Data;
using System.Diagnostics;
using System.Drawing.Design;
using System.Linq;

namespace HeuristicLab.BioBoost.Persistence {

  [Transformer("EDCB7A5F-A05F-4303-9B67-B1C84DF02246", 100)]
  public class GeometryFeatureProviderTransformer : BoxTransformer<GeometryFeatureProvider> {
    
    public override Box CreateBox(object o, Mapper mapper) {
      var box = base.CreateBox(o, mapper);
      var value = o as GeometryFeatureProvider;
      box.Values = new RepeatedValueBox();
      box.Values.Kvps = new RepeatedKeyValuePairsBox();
      foreach (DataColumn col in value.Features.Columns) {
        Debug.Assert(col.ColumnName != null);
        Debug.Assert(col.DataType != null);
        box.Values.Kvps.Keys.Add(mapper.GetStringId(col.ColumnName));
        box.Values.Kvps.Values.Add(mapper.GetTypeId(col.DataType));
      }
      return box;
    }

    public override object ToObject(Box box, Mapper mapper) {
      var table = new FeatureDataTable();
      for (int i = 0; i<box.Values.Kvps.Keys.Count; i++) {
        table.Columns.Add(
          mapper.GetString(box.Values.Kvps.Keys[i]),
          mapper.GetType(box.Values.Kvps.Values[i]));
      }
      return new GeometryFeatureProvider(table);
    }

    public override void FillBox(Box box, object o, Mapper mapper) {
      var value = o as GeometryFeatureProvider;
      var rows = new List<Tuple<object[], IGeometry>>();
      foreach (FeatureDataRow row in value.Features.Rows) {
        rows.Add(Tuple.Create(row.ItemArray, row.Geometry));
      }
      box.Values.UInts = new RepeatedUIntBox();
      box.Values.UInts.Values.Add(mapper.GetBoxId(rows));
    }

    public override void FillFromBox(object obj, Box box, Mapper mapper) {
      var gfp = obj as GeometryFeatureProvider;
      var rows = (List<Tuple<object[], IGeometry>>)mapper.GetObject(box.Values.UInts.Values[0]);
      foreach (var row in rows) {
        var dataRow = (FeatureDataRow)gfp.Features.LoadDataRow(row.Item1, LoadOption.OverwriteChanges);
        dataRow.Geometry = row.Item2;
      }
    }

    protected override void Populate(Box box, GeometryFeatureProvider value, Mapper mapper) {
      throw new NotImplementedException();
    }

    protected override GeometryFeatureProvider Extract(Box box, Type type, Mapper mapper) {
      throw new NotImplementedException();
    }
  }
}