using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.Serialization;
using System.Globalization;
using System.Xml;

namespace HeuristicLab.Services.Optimization.ControllerService.Model {
  [DataContract]
  public enum ParameterType {
    [EnumMember]
    Decimal,
    [EnumMember]
    Integer,
    [EnumMember]
    Boolean,
    [EnumMember]
    Type,
    [EnumMember]
    DecimalMatrix,
    [EnumMember]
    DecimalVector,
    [EnumMember]
    Percent,
    [EnumMember]
    String
  }

  [DataContract]
  public abstract class Value {
    [DataMember]
    public string Name { get; set; }

    public abstract bool TrySetFromString(string input);
  }


  [DataContract]
  public class DecimalMatrix : Value {
    [DataMember]
    public double[][] Value { get; set; }

    [DataMember]
    public string[] RowNames { get; set; }

    public void CopyRow(int index) {
      var newData = new double[Value.Length + 1][];
      var copyRow = new double[Value[index].Length];
      for (var i = 0; i < copyRow.Length; i++) {
        copyRow[i] = Value[index][i];
      }
      for (var i = 0; i < newData.Length; i++) {
        if (i < index) {
          newData[i] = Value[i];
        }
        else if (i == index) {
          newData[i] = copyRow;
        }
        else if (i > index) {
          newData[i] = Value[i - 1];
        }
      }
      Value = newData;
    }

    public void DeleteRow(int index) {
      if (Value.Length == 1)
        return;

      var newData = new double[Value.Length - 1][];
      for (var i = 0; i < Value.Length; i++) {
        if (i < index) {
          newData[i] = Value[i];
        }
        else if (i > index) {
          newData[i - 1] = Value[i];
        }
      }
      Value = newData;
    }

    public override bool TrySetFromString(string input) {
      var splitted = input.Split(':');
      int i, j;
      if (splitted.Length != 3)
        return false;

      if (!int.TryParse(splitted[0], out i))
        return false;

      if (!int.TryParse(splitted[1], out j))
        return false;

      double value;
      if (!double.TryParse(splitted[2], out value))
        return false;
      // very, very buggy
      /*if (i >= Value.Length || j >= Value[0].Length ) {
        double[][] valueArr = new double[i >= Value.GetLength(0) ? i : Value.GetLength(0)][];        
        for (int k = 0; k < Value.Length; k++) {
          valueArr[k] = new double[j >= Value.GetLength(1) ? j : Value.GetLength(1)];
          for (int l = 0; l < Value[k].Length; l++) {
            valueArr[k][l] = Value[k][l];
          }
        }
        Value = valueArr;
      }*/

      Value[i][j] = value;
      return true;
    }
  }

  [DataContract]
  public class DecimalVector : Value {
    [DataMember]
    public double[] Value { get; set; }

    public override bool TrySetFromString(string input) {
      var splitted = input.Split(':');      
      int index;      
      if (splitted.Length != 2)
        return false;

      if (!int.TryParse(splitted[0], out index))
        return false;

      double value;
      if (!double.TryParse(splitted[1], out value))
        return false;

      if (index >= Value.Length) {
        double[] valueArr = new double[index + 1];
        Array.Copy(Value, valueArr, Value.Length);
        Value = valueArr;
      }

      Value[index] = value;
      return true;
    }
  }

  [DataContract]
  public class TypeValue : Value {
    [DataMember]
    public string Value { get; set; }

    [DataMember]
    public string[] Options { get; set; }

    public override bool TrySetFromString(string input) {
      if (Options.Contains(input)) {
        Value = input;
        return true;
      }
      return false;
    }
  }

  [DataContract]
  public class DecimalValue : Value {
    [DataMember]
    public double Value { get; set; }

    public override bool TrySetFromString(string input) {
      double result;
      if (double.TryParse(input, out result)) {
        Value = result;
        return true;
      }
      return false;
    }
  }

  [DataContract]
  public class BoolValue : Value {
    [DataMember]
    public bool Value { get; set; }

    public override bool TrySetFromString(string input) {
      bool result;
      if (input.Contains(","))
        input = input.Split(',')[0].Trim();
      if (bool.TryParse(input, out result)) {
        Value = result;
        return true;
      }
      return false;
    }
  }

  [DataContract]
  public class StringValue : Value {
    [DataMember]
    public string Value { get; set; }

    public override bool TrySetFromString(string input) {
      Value = input;
      return true;
    }
  }

  [DataContract]
  [KnownType(typeof(BoolValue))]
  [KnownType(typeof(DecimalValue))]
  [KnownType(typeof(TypeValue))]
  [KnownType(typeof(DecimalVector))]
  [KnownType(typeof(DecimalMatrix))]
  [KnownType(typeof(StringValue))]
  public class Parameter {        
    // some kind of value type
    [DataMember]
    public ParameterType Type { get; set; }
    
    [DataMember]
    public Value Value { get; set; }    
    /*
    //[DataMember]
    public object[] Choices { get; set; }*/
  }

  [DataContract]
  public class ProblemParameters {
    private IList<Parameter> items = new List<Parameter>();

    [DataMember]
    public IList<Parameter> Items {
      get { return items; }
      set { items = value; }
    }

    public Parameter FindByName(string name) {
      foreach (var param in items) {
        if (param.Value.Name == name) {          
          return param;
        }
      }
      return null;
    }
  }

  [DataContract]
  public class AlgorithmParameters {
    private IList<Parameter> items = new List<Parameter>();

    [DataMember]
    public IList<Parameter> Items {
      get { return items; }
      set { items = value; }
    }

    public Parameter FindByName(string name) {
      foreach (var param in items) {
        if (param.Value.Name == name) {
          return param;
        }
      }
      return null;
    }
  }

  [DataContract]
  public class Problem {
    public Problem() { Parameters = new ProblemParameters(); }

    [DataMember]
    public ProblemParameters Parameters { get; set; }

    [DataMember]
    public string Class { get; set; }
  }

  [DataContract]
  public class Algorithm {
    public Algorithm() { Parameters = new AlgorithmParameters(); ChildAlgorithms = new List<Algorithm>(); }

    [DataMember]
    public string Id { get; set; }

    [DataMember]
    public AlgorithmParameters Parameters { get; set; }

    [DataMember]
    public Problem Problem{ get; set; }

    [DataMember]
    public IList<Algorithm> ChildAlgorithms { get; set; }

    [DataMember]
    public string Class { get; set; }

    [DataMember]
    public string Mapper { get; set; }

    [DataMember]
    public string Name { get; set; }

    [DataMember]
    public bool IsExperiment { get; set; }
  }

  [DataContract]
  public class OptimizationScenario {
    [DataMember]
    public string Id { get; set; }

    public OptimizationScenario() { Algorithm = new List<Algorithm>(); }

    [DataMember]
    public IList<Algorithm> Algorithm { get; set; }

    public Algorithm FirstAlgorithm { get { return Algorithm.FirstOrDefault(); } }  
  }

  [DataContract]
  public class Experiment {
    [DataMember]
    public string Name { get; set; }

    [DataMember]
    public IList<Algorithm> Algorithm { get; set; }

    [DataMember]
    public string Id { get; set; }

    public Experiment() {
      Algorithm = new List<Algorithm>();
    }

    [DataMember]
    public JobExecutionDetails JobDetails { get; set; }
  }

  [DataContract]
  public enum JobState {
    [EnumMember]
    Waiting,
    [EnumMember]
    Calculating,
    [EnumMember]
    Aborted,
    [EnumMember]
    Failed,
    [EnumMember]
    Finished
  }

  [DataContract]
  public class JobExecutionDetails {
    [DataMember]
    public int Repititions { get; set; }

    [DataMember]
    public string JobTitle { get; set; }

    [DataMember]
    public string Group { get; set; }
  }

  [DataContract]
  public class Property {
    [DataMember]
    public string Key { get; set; }
    [DataMember]
    public string Value { get; set; }
  }
  
  [DataContract]
  public class General {
    [DataMember]
    public string Name { get { return GetValue("Name"); } set { SetValue("Name", value); } }
    [DataMember]
    public string Id { get { return GetValue("Id"); } set { SetValue("Id", value); } }
    [DataMember]
    public string Priority { get { return GetValue("Priority"); } set { SetValue("Priority", value); } }
    [DataMember]
    public string LastChanged { get { return GetValue("LastChanged"); } set { SetValue("LastChanged", value); } }

    
    private IList<Property> properties = new List<Property>();
    [DataMember]
	  public IList<Property> Properties
	  {
		  get { 
        if (properties == null) 
          properties = new List<Property>();
        return properties;
      }
		  set { properties = value;}
	  }

    private string GetValue(string key) {      
      return (from p in Properties where p.Key == key select p.Value).FirstOrDefault();
    }

    private void SetValue(string key, string value) {
      var prop = (from p in Properties where p.Key == key select p).FirstOrDefault();
      if (prop == null) {
        prop = new Property();
        Properties.Add(prop);
      }
      prop.Key = key;
      prop.Value = value;
    }
  }

  [DataContract]
  public class TaskState {
    [DataMember]
    public string State { get; set; }
    [DataMember]
    public string ExecutionTime { get; set; }
    [DataMember]
    public string DateCreated { get; set; }
    [DataMember]
    public string DateFinished { get; set; }
  }

  [DataContract]
  public class Task {
    private General general = new General();
    [DataMember]
    public General General {
      get { return general; }
      set { general = value; }
    }

    private IList<Task> tasks = new List<Task>();
    [DataMember]
    public IList<Task> Children {
      get { return tasks; }
      set { tasks = value; }
    }
    
    private TaskState state = new TaskState();

    [DataMember]
    public TaskState State {
      get { return state; }
      set { state = value; }
    }
  }

  [DataContract]
  public class Job {
    [DataMember]
    public string Id { get; set; }

    [DataMember]
    public JobState State { get; set; }

    [DataMember]
    public string Name { get; set; }

    [DataMember]
    public string Resource { get; set; }

    [DataMember]
    public DateTime DateCreated { get; set; }

    private IList<Task> tasks = new List<Task>();

    [DataMember]
    public IList<Task> Tasks {
      get { return tasks; }
      set { tasks = value; }
    }
  }

  [DataContract]
  public class VisualExtension {
    [DataMember]
    public string ScenarioId { get; set; }

    [DataMember]
    public string ScenarioJs { get; set; }
  }

  [DataContract]
  public class Run {
    [DataMember]
    public string Id { get; set; }

    [DataMember]
    public string Name { get; set; }

    [DataMember]
    public IList<Parameter> Results { get; set; }

    [DataMember]
    public IList<Parameter> InputParameters { get; set; }

    [DataMember]
    public string AlgorithmName { get; set; }
  }

  [DataContract]
  public class User {
    [DataMember]
    public string Username { get; set; }
    [DataMember]
    public string Password { get; set; }
  }
}