using System;
using System.IO; 
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;


namespace WpfMenu1
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        private string filename; private string strEdited;

        public MainWindow()
        {
            InitializeComponent();
            label1.Content = "Please Open a document first ";
            label2.Content = "To Create new File Enter a name below and text in the large box. ";
            cleanup();
            
        }
        private void cleanup()
        {
            txtContainer.Text = "";
            textBox1.Text = "";
        }
        private void MenuItem_Open(object sender, RoutedEventArgs e)
        {
            cleanup();
            Microsoft.Win32.OpenFileDialog dlg = new Microsoft.Win32.OpenFileDialog();
            //Using filter for file extensions 
            dlg.DefaultExt = ".txt";
            dlg.Filter = "Text documents (.txt)|*.txt,*.doc,*.docx" + "|All Files|*.*"; ;

            //  OpenFileDialog calls ShowDialog method
            Nullable<bool> result = dlg.ShowDialog();

            
            if (result == true)
            {
                // Open document
                filename = dlg.FileName;
                label1.Content = filename;
                  FileStream fs = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read);
                Paragraph paragraph = new Paragraph();
                paragraph.Inlines.Add(System.IO.File.ReadAllText(dlg.FileName));
                FlowDocument document = new FlowDocument(paragraph);
                FlowDocReader.Document = document;
                StreamReader sr = new StreamReader(fs);
                String str1;
                while ((str1 = sr.ReadLine()) != null)
                {
                    txtContainer.Text += str1;
                }
                str1 = "";
                sr.Close();
                fs.Close();
            }


        }
        private void Text_Changed(object sender, RoutedEventArgs e)
        {
            label2.Content = "Text Changed";
            strEdited = txtContainer.Text;

        }
        private void MenuItem_Save(object sender, RoutedEventArgs e)
        {

            Microsoft.Win32.SaveFileDialog savedlg1 = new Microsoft.Win32.SaveFileDialog();
            savedlg1.InitialDirectory = filename;
            savedlg1.Title = "Save text Files";
            savedlg1.CheckFileExists = true;
            savedlg1.CheckPathExists = true;
            savedlg1.DefaultExt = "txt";
            savedlg1.Filter = "Text files (*.txt)|*.txt|All files (*.*)|*.*";
            savedlg1.FilterIndex = 2;
            savedlg1.RestoreDirectory = true;
            if (filename == null) { filename = @"C:\Local_WPF\WpfMenu1\WpfMenu1\TextFile1.txt"; };
            if (savedlg1.ShowDialog() == true)
            {

                label1.Content = savedlg1.FileName;
                string errString = strEdited;
                //FileStream fs =  File.OpenWrite(filename);  
                FileStream fs = new FileStream(filename, FileMode.OpenOrCreate, FileAccess.Write, FileShare.None);
                StreamWriter SW = new StreamWriter(fs);
                SW.Write(strEdited);
                SW.Close();
                //fs.Flush(); 
                fs.Close();
                label2.Content += "\n" + " Your Texts were saved ";

            }
            cleanup();
        }

        private void Menu_New(object sender, RoutedEventArgs e)
        {

            //textBox1.Text = "Enterfilename.txt"; 
            String createFile = @"C:\Local_WPF\WpfMenu1\WpfMenu1\" + textBox1.Text;
            try
            {
                if (createFile == null) { createFile = @"C:\Local_WPF\WpfMenu1\WpfMenu1\TextFile1.txt"; }
                FileStream fs = File.Create(createFile);
                StreamWriter sw = new StreamWriter(fs);
                sw.Write(txtContainer.Text);
                sw.Close();
                //fs.Flush();
                fs.Close();

            }
            catch (Exception err)
            {
                label2.Content = err.ToString() + "error"; 
            }
            finally
            {
                label2.Content = "File " + createFile + " Created ";
                textBox1.Text = "";
                txtContainer.Text = "";
            }
        }
        

        }
    }