using HeuristicLab.Core;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using HeuristicLab.Common;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
using HeuristicLab.Problems.BinPacking3D.Geometry;

namespace HeuristicLab.Problems.BinPacking3D {
  [Item("ResidualSpace", "Represents a residual space für a 3D bin-packing problem.")]
  [StorableClass]
  public class ResidualSpace : Item {

    public static ResidualSpace Create(int width, int height, int depth) {
      return new ResidualSpace(width, height, depth);
    }    

    public static ResidualSpace Create(ResidualSpace other) {
      return new ResidualSpace() {
        Width = other.Width,
        Height = other.Height,
        Depth = other.Depth
      };
    }

    public ResidualSpace() {
      SetZero();
    }

    public ResidualSpace(int width, int height, int depth) {
      Width = width;
      Height = height;
      Depth = depth;
    }

    public ResidualSpace(Tuple<int, int, int> rs) {
      Width = rs.Item1;
      Height = rs.Item2;
      Depth = rs.Item3;

      if (IsZero()) {
        SetZero();
      }
    }

    public ResidualSpace(BinPacking3D binPacking, Vector3D point) {
      Width = binPacking.BinShape.Width - point.X;
      Height = binPacking.BinShape.Height - point.Y;
      Depth = binPacking.BinShape.Depth - point.Z;

      if (IsZero()) {
        SetZero();
      }
    }

    [StorableConstructor]
    protected ResidualSpace(bool deserializing) : base(deserializing) { }


    protected ResidualSpace(ResidualSpace original, Cloner cloner) : base(original, cloner) {
      this.Width = original.Width;
      this.Height = original.Height;
      this.Depth = original.Depth;
    }

    public override IDeepCloneable Clone(Cloner cloner) {
      return new ResidualSpace(this, cloner);
    }

    [Storable]
    public int Width { get; set; }

    [Storable]
    public int Height { get; set; }

    [Storable]
    public int Depth { get; set; }
    
    public override bool Equals(object obj) {

      if (obj == null || GetType() != obj.GetType()) {
        return false;
      }
      ResidualSpace rs = obj as ResidualSpace;            
      return this.Width == rs.Width && this.Height == rs.Height && this.Depth == rs.Depth;
    }

    public override string ToString() {
      return $"({Width},{Height},{Depth})";
    }

    /*************************************************************
     * 
     * ***********************************************************/

    public Tuple<int, int, int> ToTuple() {
      return new Tuple<int, int, int>(Width, Height, Depth);
    }

    public PackingItem ToPackingItem() {
      return new PackingItem() {
        Width = this.Width,
        Height = this.Height,
        Depth = this.Depth
      };
    }

    public bool IsZero() {
      return Width == 0 || Height == 0 || Depth == 0;
    }
    
    public void SetZero() {
      Width = 0;
      Height = 0;
      Depth = 0;
    }
  }
}