#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2013 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 System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using HeuristicLab.DataImporter.Data;

namespace HeuristicLab.DataImporter.Command.View {
  public partial class TimeBasedCommandView : HeuristicLab.DataImporter.Data.CommandBase.CommandViewBase {
    private TimeBasedCommandView() {
      InitializeComponent();
      cmbUnit.SelectedIndex = 0;
      frequency = new DateTimeSpan();
      frequency.Seconds = 1;
      startTime = DateTime.Now;
      txtStartTime.Text = startTime.ToString();
      UpdateCommand();
    }

    public TimeBasedCommandView(EquidistantTimeSeriesCommandBase command)
      : this() {
      this.Command = command;
    }

    public new EquidistantTimeSeriesCommandBase Command {
      get { return (EquidistantTimeSeriesCommandBase)base.Command; }
      set { base.Command = value; this.UpdateCommand(); }
    }

    private DateTimeSpan frequency;
    public DateTimeSpan SampleFrequency {
      get { return this.frequency; }
    }

    private DateTime startTime;
    public DateTime StartTime {
      get { return this.startTime; }
    }

    private void txtFrequency_Validating(object sender, CancelEventArgs e) {
      int value;
      if (!Int32.TryParse(txtFrequency.Text, out value))
        e.Cancel = true;
      else if (value <= 0)
        e.Cancel = true;

      if (e.Cancel)
        MessageBox.Show("A numeric positive value must be entered!");
      else
        CalculateNewFrequency();
    }

    private void UpdateCommand() {
      if(this.Command != null) {
        this.Command.StartTime = this.startTime;
        this.Command.SampleFrequency = this.SampleFrequency;
      }
    }

    private void txtStartTime_Validating(object sender, CancelEventArgs e) {
      if (!DateTime.TryParse(txtStartTime.Text, out startTime)) {
        e.Cancel = true;
        MessageBox.Show("A date value must be entered (e.g. " + DateTime.Now.ToString() + ").");
      } else
        this.UpdateCommand();
    }

    private void cmbUnit_SelectedIndexChanged(object sender, EventArgs e) {
      CalculateNewFrequency();
    }

    private void CalculateNewFrequency() {
      int value = Int32.Parse(txtFrequency.Text);
      frequency = new DateTimeSpan();
      switch (cmbUnit.SelectedIndex) {
        case 0:
          frequency.Seconds = value;
          break;
        case 1:
          frequency.Minutes = value;
          break;
        case 2:
          frequency.Hours = value;
          break;
        case 3:
          frequency.Days = value;
          break;
        case 4:
          frequency.Months = value;
          break;
        case 5:
          frequency.Years = value;
          break;
      }
      this.UpdateCommand();
    }
    
  }
}