using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using HeuristicLab.Hive.Contracts.BusinessObjects;
using HeuristicLab.Hive.Contracts.Interfaces;

namespace HeuristicLab.Hive.Server.ServerConsole {
  public class JobListView : ListView {
    private ContextMenuStrip contextMenuJob;
    private System.ComponentModel.IContainer components;
    private ToolStripMenuItem menuItemAbortJob;
    private ToolStripMenuItem menuItemGetSnapshot;
    private ImageList ilLargeImgJob;
    private ImageList ilSmallImgJob;

    public int NrOfEntriesOnPage { 
      get {
        return jdf.NrOfEntriesOnPage;
      } 
      set {
        jdf.NrOfEntriesOnPage = value;
      }
    }


    private JobDataFetcher jdf;

    public JobListView(IEnumerable<State> states, int nrOfEntries)
      : base() {
      InitializeComponent();
      InitializeCustomControls();
      jdf = new JobDataFetcher(states, nrOfEntries);
      jdf.NewDataAvailable += new EventHandler(JdfNewDataAvailable);
      jdf.Start();
    }

    private void JdfNewDataAvailable(object sender, EventArgs e) {
      JobDataFetcher datafetcher = (JobDataFetcher) sender;
      this.BeginUpdate();
      if (datafetcher.PollStates.Contains(State.finished)) {
        this.Items.Clear();
        ListViewItem lviDummy = new ListViewItem("blahr", 0);
        this.Items.Add(lviDummy);
        foreach (JobDto job in datafetcher.CachedJobs) {
          ListViewItem lvi = new ListViewItem(job.Id.ToString(), 0);
          lvi.Tag = job;
          this.Items.Add(lvi);
        }
      }
      this.EndUpdate();
    }

    public void Forward() {
      jdf.Forward();
    }

    public void Backward() {
      jdf.Backward();
    }

    private void InitializeComponent() {
      this.components = new System.ComponentModel.Container();
      System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(JobListView));
      this.contextMenuJob = new System.Windows.Forms.ContextMenuStrip(this.components);
      this.menuItemAbortJob = new System.Windows.Forms.ToolStripMenuItem();
      this.menuItemGetSnapshot = new System.Windows.Forms.ToolStripMenuItem();
      this.ilLargeImgJob = new System.Windows.Forms.ImageList(this.components);
      this.ilSmallImgJob = new System.Windows.Forms.ImageList(this.components);
      this.contextMenuJob.SuspendLayout();
      this.SuspendLayout();
      // 
      // contextMenuJob
      // 
      this.contextMenuJob.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.menuItemAbortJob,
            this.menuItemGetSnapshot});
      this.contextMenuJob.Name = "contextMenuJob";
      this.contextMenuJob.Size = new System.Drawing.Size(145, 48);
      // 
      // menuItemAbortJob
      // 
      this.menuItemAbortJob.Name = "menuItemAbortJob";
      this.menuItemAbortJob.Size = new System.Drawing.Size(144, 22);
      this.menuItemAbortJob.Text = "Abort";
      // 
      // menuItemGetSnapshot
      // 
      this.menuItemGetSnapshot.Name = "menuItemGetSnapshot";
      this.menuItemGetSnapshot.Size = new System.Drawing.Size(144, 22);
      this.menuItemGetSnapshot.Text = "Get Snapshot";
      // 
      // ilLargeImgJob
      // 
      this.ilLargeImgJob.ImageStream = ((System.Windows.Forms.ImageListStreamer)(resources.GetObject("ilLargeImgJob.ImageStream")));
      this.ilLargeImgJob.TransparentColor = System.Drawing.Color.Transparent;
      this.ilLargeImgJob.Images.SetKeyName(0, "ok.png");
      this.ilLargeImgJob.Images.SetKeyName(1, "Forward.png");
      this.ilLargeImgJob.Images.SetKeyName(2, "pause.png");
      // 
      // ilSmallImgJob
      // 
      this.ilSmallImgJob.ImageStream = ((System.Windows.Forms.ImageListStreamer)(resources.GetObject("ilSmallImgJob.ImageStream")));
      this.ilSmallImgJob.TransparentColor = System.Drawing.Color.Transparent;
      this.ilSmallImgJob.Images.SetKeyName(0, "ok.png");
      this.ilSmallImgJob.Images.SetKeyName(1, "Forward.png");
      this.ilSmallImgJob.Images.SetKeyName(2, "pause.png");
      // 
      // JobListView
      // 
      this.LargeImageList = this.ilLargeImgJob;
      this.SmallImageList = this.ilSmallImgJob;
      this.contextMenuJob.ResumeLayout(false);
      this.ResumeLayout(false);

    }

    private void InitializeCustomControls() {
      menuItemAbortJob.Click += (s, e) => {
                                  IJobManager jobManager = ServiceLocator.GetJobManager();
                                  if (this.SelectedItems.Count == 1) {
                                    jobManager.AbortJob(((JobDto) (this.SelectedItems[0].Tag)).Id);
                                  }
                                };

      //adding context menu items for jobs
      menuItemGetSnapshot.Click += (s, e) => {
                                     IJobManager jobManager = ServiceLocator.GetJobManager();
                                     if (this.SelectedItems.Count == 1) {
                                       jobManager.RequestSnapshot(((JobDto) (this.SelectedItems[0].Tag)).Id);
                                     }
                                   };
      
      
    }
  }
}