using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using Mesen.GUI.Controls;

namespace Mesen.GUI.Debugger.Controls
{
	public partial class ctrlFindOccurrences : UserControl
	{
		public event EventHandler OnSearchResultsClosed;

		public ctrlFindOccurrences()
		{
			InitializeComponent();
			this.lstSearchResult.Font = new System.Drawing.Font(BaseControl.MonospaceFontFamily, 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
		}

		public ICodeViewer Viewer { get; set; }

		public void FindAllOccurrences(string text, bool matchWholeWord, bool matchCase)
		{
			this.lstSearchResult.Items.Clear();
			foreach(Tuple<int, int, string> searchResult in Viewer.CodeViewer.FindAllOccurrences(text, matchWholeWord, matchCase)) {
				var item = this.lstSearchResult.Items.Add(searchResult.Item1.ToString("X4"));
				item.Tag = searchResult.Item2;
				item.SubItems.Add(searchResult.Item3);
				item.SubItems.Add("");
			}
			this.lblSearchResult.Text = $"Search results for: {text} ({this.lstSearchResult.Items.Count} results)";
			this.lstSearchResult.AutoResizeColumns(ColumnHeaderAutoResizeStyle.ColumnContent);
			this.lstSearchResult.Columns[0].Width += 20;
			this.lstSearchResult.Columns[1].Width = Math.Max(this.lstSearchResult.Columns[1].Width, this.lstSearchResult.Width - this.lstSearchResult.Columns[0].Width - 24);
		}

		private void lstSearchResult_SizeChanged(object sender, EventArgs e)
		{
			this.lstSearchResult.SizeChanged -= lstSearchResult_SizeChanged;
			this.lstSearchResult.Columns[1].AutoResize(ColumnHeaderAutoResizeStyle.ColumnContent);
			this.lstSearchResult.Columns[1].Width = Math.Max(this.lstSearchResult.Columns[1].Width, this.lstSearchResult.Width - this.lstSearchResult.Columns[0].Width - 24);
			this.lstSearchResult.SizeChanged += lstSearchResult_SizeChanged;
		}

		private void picCloseOccurrenceList_Click(object sender, EventArgs e)
		{
			OnSearchResultsClosed?.Invoke(null, EventArgs.Empty);
		}

		private void lstSearchResult_DoubleClick(object sender, EventArgs e)
		{
			if(lstSearchResult.SelectedItems.Count > 0) {
				int lineIndex = (int)lstSearchResult.SelectedItems[0].Tag;
				Viewer.CodeViewer.ScrollToLineIndex(lineIndex);
			}
		}
	}
}