using DevelopAssistant.AddIn.Diffplex.Properties;
using DevelopAssistant.Service;
using DiffPlex;
using DiffPlex.DiffBuilder;
using DiffPlex.DiffBuilder.Model;
using ICSharpCode.TextEditor;
using ICSharpCode.TextEditor.Document;
using ICSharpCode.WinFormsUI.Controls;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing; 
using System.Text; 
using System.Windows.Forms;

namespace DevelopAssistant.AddIn.Diffplex
{
 public partial class MainForm : ICSharpCode.WinFormsUI.Docking.DockContent
 {
 private Form mainForm = null;

 int ScrollType = 0; //0竖向滚动条 1横向滚动条

 int currentIndex = -1;

 int currentVScrollBarValue = 0;
 int currentHScrollBarValue = 0;
 int lastVScrollBarValue = 0;
 int lastHScrollBarValue = 0;

 string currentTheme = string.Empty;
 string HighlightingName = "Text";

 Color red = Color.FromArgb(045, 000, 000);
 Color yellow = Color.FromArgb(153, 153, 0);
 Color green = Color.FromArgb(038, 094, 077);

 string sourceContentText = string.Empty;
 string targetContentText = string.Empty;

 System.Windows.Forms.Timer timer = null;

 List<CodeLine> deffenrence_lines = new List<CodeLine>();

 ToolTip tooltip = new ToolTip();
 OpenFileDialog openFile = new OpenFileDialog();
 ISideBySideDiffBuilder diffBuilder = null;

 public MainForm()
 {
 InitializeComponent();
 InitializeControls();
 }

 public MainForm(Form owner,string theme, AddInBase addin)
 : this()
 {
 mainForm = owner;
 currentTheme = theme; 
 diffBuilder = new DiffPlex.DiffBuilder.SideBySideDiffBuilder(new Differ());

 switch (currentTheme)
 {
 case "Black":
 red = Color.FromArgb(045, 000, 000);
 yellow = Color.FromArgb(153, 153, 0);
 green = Color.FromArgb(038, 094, 077);
 break;
 case "Default":
 red = Color.FromArgb(255, 204, 204);
 yellow = Color.FromArgb(255, 255, 204);
 green = Color.FromArgb(102, 255, 102);
 break;
 }

 this.SourceTextControl.SetHighlighting(theme, HighlightingName);
 this.TargetTextControl.SetHighlighting(theme, HighlightingName);

 }

 private void InitializeControls()
 {
 this.lblSourceFile.Text = "原内容";
 this.lblTargetFile.Text = "新内容";
 tooltip.SetToolTip(this.lblSourceFile, "原内容");
 tooltip.SetToolTip(this.lblTargetFile, "新内容");

 this.btnPrevDifferent.ToolTipText = "上一处";
 this.btnNextDifferent.ToolTipText = "下一处";
 this.btnStartCompare.ToolTipText = "开始比较";

 this.btnPrevDifferent.IconImage= Resources.navigate_prev;
 this.btnNextDifferent.IconImage = Resources.navigate_next;
 this.btnStartCompare.IconImage = Resources.compare;

 this.panel3.BorderStyle = NBorderStyle.All;
 this.panel1.BorderColor = SystemColors.ControlLight; 
 this.panel2.BorderStyle = NBorderStyle.Bottom;
 this.panel3.BorderStyle = NBorderStyle.Bottom;
 this.panel2.BorderColor = SystemColors.ControlLight;
 this.panel3.BorderColor = SystemColors.ControlLight;

 this.SourceTextControl.ComparisonState = true;
 this.TargetTextControl.ComparisonState = true;

 this.SourceTextControl.EnableFolding = false;
 this.TargetTextControl.EnableFolding = false;

 this.SourceTextControl.ShowGuidelines = true;
 this.TargetTextControl.ShowGuidelines = true;

 this.SourceTextControl.ActiveTextAreaControl.VScrollBar.ValueChanged += VScrollBar_ValueChanged;
 this.TargetTextControl.ActiveTextAreaControl.VScrollBar.ValueChanged += VScrollBar_ValueChanged;

 this.SourceTextControl.ActiveTextAreaControl.HScrollBar.ValueChanged += HScrollBar_ValueChanged;
 this.TargetTextControl.ActiveTextAreaControl.HScrollBar.ValueChanged += HScrollBar_ValueChanged;

 }

 protected override void OnFormClosed(FormClosedEventArgs e)
 {
 timer.Enabled = false;
 timer.Dispose();
 GC.Collect(0);
 GC.SuppressFinalize(this);
 base.OnFormClosed(e);
 }

 private void MainForm_Load(object sender, EventArgs e)
 {
 this.comboFontName.SelectedIndex = 0;
 this.splitContainer1.SplitterDistance = this.splitContainer1.Width / 2; 
 this.openFile.Filter = "记事本|*.txt|SQL|*.sql|C Sharp|*.cs|HTML|*.html|XML|.xml|CSS|*.css|JS|*.js|Json|*.json|其他格式|*.*";

 timer = new System.Windows.Forms.Timer();
 timer.Enabled = true;
 timer.Interval = 120;
 timer.Tick += Timer_Tick;

 OnThemeChanged(new EventArgs());
 }

 private void CurrentLightName(string filetype)
 {
 HighlightingName = "Text";
 switch (filetype.ToUpper())
 {
 case ".XML":
 HighlightingName = "XML";
 break;
 case ".CONFIG":
 HighlightingName = "XML";
 break;
 case ".CSPROJ":
 HighlightingName = "XML";
 break;
 case ".CS":
 HighlightingName = "C#";
 break;
 case ".JAVA":
 HighlightingName = "Java";
 break;
 case ".JSON":
 HighlightingName = "JavaScript";
 break;
 case ".JS":
 HighlightingName = "JavaScript";
 break;
 case ".SQL":
 HighlightingName = "TSQL";
 break;
 case ".HTML":
 HighlightingName = "HTML";
 break;
 case ".HTM":
 HighlightingName = "HTML";
 break;
 case ".CSHTML":
 HighlightingName = "CSHTML";
 break;
 case ".ASPX":
 HighlightingName = "ASP/XHTML";
 break;
 case ".CSS":
 HighlightingName = "CssStyle";
 break;
 case ".LESS":
 HighlightingName = "CssStyle";
 break;
 case ".TXT":
 HighlightingName = "Text";
 break;
 case ".ADDIN":
 HighlightingName = "XML";
 break;
 }
 }

 private void SynchronScrollbar()
 {
 if (ScrollType == 0 &&
 lastVScrollBarValue == currentVScrollBarValue)
 return;

 if (ScrollType == 1 &&
 lastHScrollBarValue == currentHScrollBarValue)
 return;

 if (ScrollType == 0)
 {
 TargetTextControl.ActiveTextAreaControl.VScrollBar.Value = currentVScrollBarValue;
 SourceTextControl.ActiveTextAreaControl.VScrollBar.Value = currentVScrollBarValue;
 lastVScrollBarValue = currentVScrollBarValue;
 }

 if (ScrollType == 1)
 {
 TargetTextControl.ActiveTextAreaControl.HScrollBar.Value = currentHScrollBarValue;
 SourceTextControl.ActiveTextAreaControl.HScrollBar.Value = currentHScrollBarValue;
 lastHScrollBarValue = currentHScrollBarValue;
 }

 TargetTextControl.ActiveTextAreaControl.UpdateVirtualTop();
 SourceTextControl.ActiveTextAreaControl.UpdateVirtualTop();

 ////文件对比模式则等待其它事件都完成保证同步滚动
 //Application.DoEvents();
 }

 private string GetContent(string path)
 {
 using (System.IO.StreamReader sr = new System.IO.StreamReader(path, Encoding.Default))
 {
 return sr.ReadToEnd();
 }
 }

 private string TrimEnd(string text,string trim)
 {
 if (text.EndsWith(trim))
 {
 text = text.Replace(trim, "\n");
 int trimIndex = text.LastIndexOf('\n');
 text = text.Substring(0, trimIndex);
 }
 if(text.StartsWith(trim))
 {
 text = text.Replace(trim, "\n");
 int trimIndex = text.IndexOf('\n');
 text = text.Substring(trimIndex);
 }
 return text;
 }

 public void OpenFile(string file)
 {
 openFile.FileName = file;
 if (openFile.ShowDialog(this).Equals(DialogResult.OK))
 {
 if (!string.IsNullOrEmpty(openFile.FileName))
 {
 string context = GetContent(openFile.FileName);
 }
 }
 }

 private void Timer_Tick(object sender, EventArgs e)
 {
 SynchronScrollbar();
 }

 private void VScrollBar_ValueChanged(object sender, EventArgs e)
 {
 ScrollType = 0;
 currentVScrollBarValue = ((TextEditorVScrollBar)sender).Value;
 }

 private void HScrollBar_ValueChanged(object sender, EventArgs e)
 {
 ScrollType = 1;
 currentHScrollBarValue = ((TextEditorHScrollBar)sender).Value;
 }

 private void SelectOpenFile(object sender, EventArgs e)
 {
 if (openFile.ShowDialog(this).Equals(DialogResult.OK))
 {
 if (!string.IsNullOrEmpty(openFile.FileName))
 {
 string fileType = openFile.FileName;
 fileType = fileType.Substring(fileType.LastIndexOf("."));
 CurrentLightName(fileType);

 string fileName= openFile.FileName;
 fileName = fileName.Substring(fileName.LastIndexOf("\\") + 1);

 Control control = (Control)sender;
 string context = GetContent(openFile.FileName);
 switch (control.Name)
 {
 case "lblFile1":
 SourceTextControl.Text = context;
 lblSourceFile.Text = "文件一:" + fileName;
 tooltip.SetToolTip(lblSourceFile, openFile.FileName);
 break;
 case "lblFile2":
 TargetTextControl.Text = context;
 lblTargetFile.Text = "文件二:" + fileName;
 tooltip.SetToolTip(lblTargetFile, openFile.FileName);
 break;
 }

 this.SourceTextControl.ActiveTextAreaControl.LineCustomColorsClear();
 this.TargetTextControl.ActiveTextAreaControl.LineCustomColorsClear();
 this.SourceTextControl.SetHighlighting(currentTheme, HighlightingName);
 this.TargetTextControl.SetHighlighting(currentTheme, HighlightingName);

 }
 }
 }

 private void comboFontName_SelectedIndexChanged(object sender, EventArgs e)
 {
 var item = ((NComboBox)sender).SelectedItem;
 SourceTextControl.Font = new Font(item + "", 12.0f);
 TargetTextControl.Font = new Font(item + "", 12.0f);
 }

 private void btnApply_Click(object sender, EventArgs e)
 {
 sourceContentText = SourceTextControl.Text;
 targetContentText = TargetTextControl.Text;
 DiffPlexViewer(diffBuilder.BuildDiffModel(sourceContentText, targetContentText));
 }

 private void btnNextDifferent_Click(object sender, EventArgs e)
 {
 if (deffenrence_lines.Count == 0)
 return;

 currentIndex = currentIndex + 1;
 if (currentIndex > deffenrence_lines.Count - 1)
 {
 currentIndex = deffenrence_lines.Count - 1;
 }
 int lineNumber = deffenrence_lines[currentIndex].LineNumber;
 SourceTextControl.ActiveTextAreaControl.JumpTo(lineNumber);
 TargetTextControl.ActiveTextAreaControl.JumpTo(lineNumber);
 }

 private void btnPrevDifferent_Click(object sender, EventArgs e)
 {
 if (deffenrence_lines.Count == 0)
 return;

 currentIndex = currentIndex - 1;
 if (currentIndex <= 0)
 {
 currentIndex = 0;
 }
 int lineNumber = deffenrence_lines[currentIndex].LineNumber;
 SourceTextControl.ActiveTextAreaControl.JumpTo(lineNumber);
 TargetTextControl.ActiveTextAreaControl.JumpTo(lineNumber);
 }

 private void DiffPlexViewer(SideBySideDiffModel diff)
 {
 currentIndex = 0;
 deffenrence_lines.Clear();
 SourceTextControl.ActiveTextAreaControl.LineCustomColorsClear();
 TargetTextControl.ActiveTextAreaControl.LineCustomColorsClear();

 if (diff != null)
 {
 StringBuilder sourceStringBuilder = new StringBuilder();
 StringBuilder targetStringBuilder = new StringBuilder();

 List<DifferenceLine> sourceDifferenceLines = new List<DifferenceLine>();
 List<DifferenceLine> targetDifferenceLines = new List<DifferenceLine>();

 int lineCount = diff.OldText.Lines.Count;
 if (diff.NewText.Lines.Count > lineCount)
 {
 lineCount = diff.NewText.Lines.Count;
 }

 for (int i = 0; i < lineCount; i++)
 {
 ChangeType sourceType = diff.OldText.Lines[i].Type;
 ChangeType targetType = diff.NewText.Lines[i].Type;

 if (sourceType == ChangeType.Inserted)
 {
 DifferenceLine lline = new DifferenceLine(i, green, "Inserted");
 sourceDifferenceLines.Add(lline);
 }
 if (sourceType == ChangeType.Modified)
 {
 DifferenceLine lline = new DifferenceLine(i, red, "Modified");
 sourceDifferenceLines.Add(lline);
 }
 if (sourceType == ChangeType.Deleted)
 {
 DifferenceLine lline = new DifferenceLine(i, yellow, "Deleted");
 sourceDifferenceLines.Add(lline);
 }

 
 if (targetType == ChangeType.Inserted)
 {
 DifferenceLine lline = new DifferenceLine(i, green, "Inserted");
 targetDifferenceLines.Add(lline);
 }
 if (targetType == ChangeType.Modified)
 {
 DifferenceLine lline = new DifferenceLine(i, red, "Modified");
 targetDifferenceLines.Add(lline);
 }
 if (targetType == ChangeType.Deleted)
 {
 DifferenceLine lline = new DifferenceLine(i, yellow, "Deleted");
 targetDifferenceLines.Add(lline);
 }

 if (sourceType != ChangeType.Unchanged || targetType != ChangeType.Unchanged)
 {
 deffenrence_lines.Add(new CodeLine(i));
 }

 sourceStringBuilder.AppendLine(diff.OldText.Lines[i].Text);
 targetStringBuilder.AppendLine(diff.NewText.Lines[i].Text);
 }

 //SourceTextControl.Text = sourceStringBuilder.ToString().TrimEnd(System.Environment.NewLine.ToCharArray());
 //TargetTextControl.Text = targetStringBuilder.ToString().TrimEnd(System.Environment.NewLine.ToCharArray());
 SourceTextControl.Text = TrimEnd(sourceStringBuilder.ToString(), System.Environment.NewLine);
 TargetTextControl.Text = TrimEnd(targetStringBuilder.ToString(), System.Environment.NewLine);

 foreach (var line in sourceDifferenceLines)
 {
 SourceTextControl.ActiveTextAreaControl.AddLineCustomColor(new CustomLineColor(Color.Empty, line.LineBackgroundColor,line.Type), line.LineNumber);
 }

 foreach (var line in targetDifferenceLines)
 {
 TargetTextControl.ActiveTextAreaControl.AddLineCustomColor(new CustomLineColor(Color.Empty, line.LineBackgroundColor, line.Type), line.LineNumber);
 }

 } 
 }

 public override void OnThemeChanged(EventArgs e)
 {
 Color foreColor = SystemColors.WindowText;
 Color backColor = SystemColors.Control;
 Color linkColor = System.Drawing.Color.Blue;
 Color toolBackColor = SystemColors.ControlLight;
 Color textColor = SystemColors.Window;
 Color gridLineColor = SystemColors.ControlLight;
 string themeName = AppSettings.EditorSettings.TSQLEditorTheme;
 switch (themeName)
 {
 case "Default":
 foreColor = SystemColors.WindowText;
 backColor = SystemColors.Control;
 linkColor = System.Drawing.Color.Blue;
 toolBackColor = Color.FromArgb(246, 248, 250);
 textColor = SystemColors.Window;
 gridLineColor = SystemColors.ControlLight;
 break;
 case "Black":
 foreColor = Color.FromArgb(240, 240, 240);
 backColor = Color.FromArgb(045, 045, 048);
 linkColor = Color.FromArgb(051, 153, 153);
 toolBackColor = Color.FromArgb(030, 030, 030);
 textColor = Color.FromArgb(030, 030, 030);
 gridLineColor = SystemColors.ControlDark;
 break;
 }

 panel5.ForeColor = foreColor;
 panel5.BackColor = backColor;

 SourceTextControl.SetHighlighting(themeName, HighlightingName);
 TargetTextControl.SetHighlighting(themeName, HighlightingName);

 groupBox1.BackColor = backColor;
 groupBox1.GridLineColor = gridLineColor;

 panel2.ForeColor = foreColor;
 panel3.BackColor = toolBackColor;
 panel3.ForeColor = foreColor;
 panel2.BackColor = toolBackColor;
 lblFile1.ForeColor = linkColor;
 lblFile1.BackColor = toolBackColor;
 lblFile2.ForeColor = linkColor;
 lblFile2.BackColor = toolBackColor;
 lblSourceFile.ForeColor = foreColor;
 lblSourceFile.BackColor = toolBackColor;
 lblTargetFile.ForeColor = foreColor;
 lblTargetFile.BackColor = toolBackColor;
 comboFontName.ForeColor = foreColor;
 comboFontName.BackColor = textColor;
 }

 }
}