namespace ScintillaNET_FindReplaceDialog.FindAllResults
{
    using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Linq;
    using System.Text;
    using System.Windows.Forms;
    using ScintillaNET;

    public partial class FindAllResultsPanel : UserControl
    {
        #region Fields

        private readonly Dictionary<int, FindResult> _findAllResults=new Dictionary<int, FindResult>();

        #endregion Fields

        #region Constructors

        /// <summary>
        /// Creates a new instance of FindAllResultsPanel
        /// </summary>
        public FindAllResultsPanel()
        {
            InitializeComponent();

            FindResultsScintilla.Styles[Style.Default].Font = "Consolas";
            FindResultsScintilla.Styles[Style.Default].Size = 10;

            FindResultsScintilla.ClearAll();
        }
        public delegate void ResultEventHandler(object sender, FindResult r);
        /// <summary>
        /// 点击结果时发生
        /// </summary>
        [Description("点击结果时发生")]
        public event ResultEventHandler OnResultClick;
        #endregion Constructors

        #region Properties
        #endregion Properties

        #region Methods

        /// <summary>
        /// Updates the find all results panel
        /// </summary>
        /// <param name="FindReplace">The FindReplace instance used to generate the find results.</param>
        /// <param name="FindAllResults"></param>
        public void UpdateFindAllResults(Dictionary<string,List<ScintillaNET_FindReplaceDialog.CharacterRange>> FindAllResults)
        {
            _findAllResults.Clear();
            FindResultsScintilla.ReadOnly = false;
            FindResultsScintilla.ClearAll();
            Indicator _indicator_title = FindResultsScintilla.Indicators[15];
            _indicator_title.ForeColor = Color.LightGreen;
            _indicator_title.Alpha = 100;
            _indicator_title.Style = IndicatorStyle.RoundBox;
            _indicator_title.Under = true;

            Indicator _indicator = FindResultsScintilla.Indicators[16];
            _indicator.ForeColor = Color.Red;
            _indicator.Alpha = 100;
            _indicator.Style = IndicatorStyle.RoundBox;
            _indicator.Under = true;
            var line = 0;
            //Write lines
            foreach (var item in FindAllResults)
            {
                FindResultsScintilla.AppendText(item.Key+"   (匹配"+ item.Value.Count+ "次)\r\n");
                _findAllResults.Add(line, new FindResult());
                FindResultsScintilla.Lines[line].ToggleFold();
                line++;
                foreach (var item_file in item.Value)
                {
                    string resultsLinePrefix = string.Format("行 {0}: ", item_file.LineNum + 1);
                    FindResultsScintilla.AppendText(string.Format("{0}{1}",
                        resultsLinePrefix, item_file.RangeText.Replace("\n"," "))+"\r\n");
                    _findAllResults.Add(line,new FindResult() { Path = item.Key, Result = item_file });
                    line++;
                }
                //Highlight
                foreach (var item_file in _findAllResults)
                {
                    var item_range = item_file.Value.Result;
                    int lastLineStartPos = FindResultsScintilla.Lines[item_file.Key].Position;
                    if (item_range == null) {
                        FindResultsScintilla.IndicatorCurrent = _indicator_title.Index;
                        FindResultsScintilla.IndicatorFillRange(lastLineStartPos, FindResultsScintilla.Lines[item_file.Key].Length);
                        continue; 
                    }
                    string resultsLinePrefix = string.Format("行 {0}: ", item_range.LineNum+1);
                    //int LinePos = item_range.LinePos;
                    //int startPosInLine = item_range.CpMin - LinePos;
                    FindResultsScintilla.IndicatorCurrent = _indicator.Index;
                    FindResultsScintilla.IndicatorFillRange(lastLineStartPos + resultsLinePrefix.Length+1, item_file.Value.Result.CpMax - item_file.Value.Result.CpMin);
                }
            }
            FindResultsScintilla.ReadOnly = true;
        }

        private void FindResultsScintilla_KeyUp(object sender, KeyEventArgs e)
        {
            int pos = FindResultsScintilla.CurrentPosition;
            int selectedLine = FindResultsScintilla.LineFromPosition(pos);

            if (_findAllResults.ContainsKey(selectedLine))
            {
                ScintillaNET_FindReplaceDialog.CharacterRange CharRange = _findAllResults[selectedLine].Result;
                if (CharRange == null) { return; }
                if (CharRange.CpMax== CharRange.CpMin) { return; }
                OnResultClick?.Invoke(this, _findAllResults[selectedLine]);
                //Scintilla.SetSelection(CharRange.cpMin, CharRange.cpMax);
                //Scintilla.ScrollCaret();
            }
        }

        private void FindResultsScintilla_MouseClick(object sender, MouseEventArgs e)
        {
            int pos = FindResultsScintilla.CharPositionFromPointClose((e.Location).X, (e.Location).Y);
            if (pos == -1)
                return;

            int selectedLine = FindResultsScintilla.LineFromPosition(pos);
            if (_findAllResults.ContainsKey(selectedLine))
            {
                ScintillaNET_FindReplaceDialog.CharacterRange CharRange = _findAllResults[selectedLine].Result;
                if (CharRange == null) { return; }
                if (CharRange.CpMax == CharRange.CpMin) { return; }
                OnResultClick?.Invoke(this, _findAllResults[selectedLine]);
                //Scintilla.SetSelection(CharRange.cpMin, CharRange.cpMax);
                //Scintilla.ScrollCaret();
            }
        }

        private void FindResultsScintilla_MouseDoubleClick(object sender, MouseEventArgs e)
        {
            var aa = FindResultsScintilla.CurrentPosition;
            int selectedLine = FindResultsScintilla.LineFromPosition(aa);
            //int pos = FindResultsScintilla.CharPositionFromPointClose((e.Location).X, (e.Location).Y);
            if (selectedLine == -1)
                return;
            //int selectedLine = FindResultsScintilla.LineFromPosition(pos);
            if (_findAllResults.ContainsKey(selectedLine))
            {
                ScintillaNET_FindReplaceDialog.CharacterRange CharRange = _findAllResults[selectedLine].Result;
                if (CharRange == null) { return; }
                if (CharRange.CpMax == CharRange.CpMin) { return; }
                OnResultClick?.Invoke(this, _findAllResults[selectedLine]);
                //Scintilla.SetSelection(CharRange.cpMin, CharRange.cpMax);
                //Scintilla.ScrollCaret();
                //Scintilla.Focus();
            }
        }

        #endregion Methods
    }
    public class FindResult
    {
        public string Path { get; set; } = "";
        public ScintillaNET_FindReplaceDialog.CharacterRange Result { get; set; }
    }
}