using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Resources;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Eugen.ESystem.Windows.Forms
{
    public partial class About : Form
    {
        public About(string programName, string programVersion, string programCopyright)
        {
            InitializeComponent();

            SetContent(programName, programVersion, programCopyright); //Fensterinhalt setzen
        }

        protected string ProgramName { private set; get; }
        protected string ProgramVersion { private set; get; }
        protected string ProgramCopyright { private set; get; }

        private void buttonClose_Click(object sender, EventArgs e)
        {
            this.Close(); //Das Fenster schliessen
        }

        private void buttonExport_Click(object sender, EventArgs e)
        {
            //Speichert den Inhalt der TextBox oder den selektierten Bereich daraus
            saveFileDialog.Filter = "Text-Datei (*.txt)|*.txt|Alle Dateien (*.*)|*.*";
            saveFileDialog.ShowDialog();
        }

        private void saveFileDialog_FileOk(object sender, CancelEventArgs e)
        {
            string fileName = saveFileDialog.FileName;
            string text = ExportText();

            try
            {
                File.WriteAllText(fileName, text); //Schreibt den Text in eine Datei
            }
            catch (Exception)
            {
                MessageBox.Show(Language.message001,
                                Language.messagehead001,
                                MessageBoxButtons.OK,
                                MessageBoxIcon.Error,
                                MessageBoxDefaultButton.Button1);
            }
        }

        private void SetContent(string programName, string programVersion, string programCopyright)
        {
            labelProgramName.Text = programName;
            ProgramName = programName;
            if (programVersion.StartsWith("V"))
            {
                labelVersion.Text = programVersion;
                ProgramVersion = programVersion;
            }
            else
            {
                labelVersion.Text = String.Concat("Version ", programVersion);
                ProgramVersion = labelVersion.Text;
            }
            labelCopyright.Text = programCopyright;
            ProgramCopyright = programCopyright;
        }

        private void SaveFileDialogFileOk(object sender, System.ComponentModel.CancelEventArgs e)
        {
            string fileName = saveFileDialog.FileName;
            string text = ExportText();

            try
            {
                File.WriteAllText(fileName, text); //Schreibt den Text in eine Datei
            }
            catch (Exception)
            {
                
                MessageBox.Show(Language.message001,
                                Language.messagehead001,
                                MessageBoxButtons.OK,
                                MessageBoxIcon.Error,
                                MessageBoxDefaultButton.Button1);
            }
        }

        private string ExportText()
        {
            if (textBox.SelectionLength > 0)
            {
                return textBox.SelectedText; //Gibt den selektierten Text zurück
            }
            else
            {
                return String.Concat(ProgramName, "\r\n", ProgramVersion, "\r\n", ProgramCopyright, "\r\n--------------------------------------------------------------------------------\r\n", FixLineLenght.Format(textBox.Text, 80)); //Gibt den ganzen Text zurück
            }
        }
    }
}