using System;
using System.Collections.Generic;
using System.Windows.Forms;
using HeuristicLab.Common;
using HeuristicLab.Core;
using HeuristicLab.Core.Views;
using HeuristicLab.MainForm;

namespace HeuristicLab.DataPreprocessing {
  [View("DataPreprocessing View")]
  [Content(typeof(PreprocessingContext), true)]
  public partial class DataPreprocessingView : ItemView {

    private DataGridContent dataGridContent;
    private StatisticsContent statisticsContent;
    private FilterContent filterContent;
    private TransformationContent tranformationContent;
    private LineChartContent lineChartContent;
    private HistogramContent histogramContent;

    private Dictionary<ListViewItem, IItem> listViewItemItemMapping;

    public DataPreprocessingView() {
      InitializeComponent();
    }

    protected override void OnContentChanged() {
      base.OnContentChanged();
      InitializeContents();
    }

    private ListViewItem CreateListViewItem(IItem item) {
      ListViewItem listViewItem = new ListViewItem();

      listViewItem.Text = item.ToString();
      //listViewItem.ToolTipText = item.ItemName + ": " + item.ItemDescription;
      //itemsListView.SmallImageList.Images.Add(content.);
      //listViewItem.ImageIndex = itemsListView.SmallImageList.Images.Count - 1;
      //listViewItem.Tag = item;
      return listViewItem;
    }

    private void InitializeContents() {
      IPreprocessingData data = Content.Data;
      ISearchLogic searchLogic = new SearchLogic(data);
      dataGridContent = new DataGridContent(new DataGridLogic(data), new PreprocessingDataManipulation(data, searchLogic, new StatisticsLogic(data, searchLogic)));
      statisticsContent = new StatisticsContent(new StatisticsLogic(data, searchLogic));
      filterContent = new FilterContent(new FilterLogic());
      tranformationContent = new TransformationContent(new TransformationLogic());
      lineChartContent = new LineChartContent(new LineChartLogic());
      histogramContent = new HistogramContent(new HistogramLogic());

      listViewItemItemMapping = new Dictionary<ListViewItem, IItem>();
      ListViewItem contentListViewItem = CreateListViewItem(dataGridContent);
      listViewItemItemMapping[contentListViewItem] = dataGridContent;

      ListViewItem statisticsListViewItem = CreateListViewItem(statisticsContent);
      listViewItemItemMapping[statisticsListViewItem] = statisticsContent;

      ListViewItem filterListViewItem = CreateListViewItem(filterContent);
      listViewItemItemMapping[filterListViewItem] = filterContent;

      ListViewItem transformationListViewItem = CreateListViewItem(tranformationContent);
      listViewItemItemMapping[transformationListViewItem] = tranformationContent;

      ListViewItem lineChartListViewItem = CreateListViewItem(lineChartContent);
      listViewItemItemMapping[lineChartListViewItem] = lineChartContent;

      ListViewItem histogramListViewItem = CreateListViewItem(histogramContent);
      listViewItemItemMapping[histogramListViewItem] = histogramContent;

      contentListView.Items.Add(statisticsListViewItem);
      contentListView.Items.Add(contentListViewItem);
      contentListView.Items.Add(filterListViewItem);
      contentListView.Items.Add(transformationListViewItem);
      contentListView.Items.Add(lineChartListViewItem);
      contentListView.Items.Add(histogramListViewItem);
    }

    public new PreprocessingContext Content {
      get { return (PreprocessingContext)base.Content; }
      set {
        base.Content = value;
      }
    }

    private void listView1_SelectedIndexChanged(object sender, EventArgs e) {

      if (contentListView.SelectedItems.Count > 0) {
        ListViewItem listViewItem = (ListViewItem)contentListView.SelectedItems[0];
        this.viewHost.Content = listViewItemItemMapping[listViewItem];
      }
    }

    private void listView1_DoubleClick(object sender, EventArgs e) {
      ListViewItem listViewItem = (ListViewItem)contentListView.SelectedItems[0];
      MainFormManager.MainForm.ShowContent(listViewItemItemMapping[listViewItem]);
    }

    private void exportProblemButton_Click(object sender, EventArgs e) {
      var cloner = new PreprocessingCloner(Content);
      var alteredClone = cloner.GenerateAlteredClone(Content.Problem);

      var saveFileDialog = new SaveFileDialog {
        Title = "Save Item",
        DefaultExt = "hl",
        Filter = "Uncompressed HeuristicLab Files|*.hl|HeuristicLab Files|*.hl|All Files|*.*",
        FilterIndex = 2
      };

      var content = alteredClone as IStorableContent;
      if (saveFileDialog.ShowDialog() == DialogResult.OK) {
        bool compressed = saveFileDialog.FilterIndex != 1;
        ContentManager.Save(content, saveFileDialog.FileName, compressed);
      }
    }

    private void applyInNewTabButton_Click(object sender, EventArgs e) {
      IPreprocessingData data = Content.Data;

      foreach (string variable in data.VariableNames) {
        for (int j = 0; j < data.Rows; j++) {
          // assume: all double
          data.SetCell(variable, j, 1.0);
        }
      }
      MessageBox.Show("Success, now cloning... ");

      var cloner = new PreprocessingCloner(Content);
      var item = cloner.GenerateAlteredClone(Content.ParentItem);

      MainFormManager.MainForm.ShowContent(item);
    }
  }
}