GÉNÉRATEUR DE PLAYLIST M3U

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;
using System.Threading;
using System.IO;


namespace GenerateurM3U
{
    public partial class MainForm : Form
    {
        //thread s'occuppant de la génération
        protected internal Thread threadGenerateur;
        //délégué pour update la progress bar
        protected internal delegate void MaJProgressBar(int pourcentage);
        //event de maj progressbar
        protected internal event MaJProgressBar UpdateProgressBar;
        //format playlist (seul M3U implémenté pour l'instant)
        protected internal static FormatPlaylist Format;
        //répertoire à scanner
        protected internal static string Repertoire_a_Scanner;
        //répertoire de sortie
        protected internal static string Repertoire_Sortie;

        //enum formt de playlist
        protected internal enum FormatPlaylist
        {
            M3U, WPL
        }
        //liste contenant les formats
        protected internal List<FormatPlaylist> listeFormat;

        //constructeur par défaut
        public MainForm()
        {
            try
            {
                InitializeComponent();
            }
            catch (Exception xcp)
            {
                MessageBox.Show(xcp.Message);
            }
        }

        /// <summary>
        ///     Appelée lors du clic sur le lbl url dans la status strip
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void toolstriplbl_url_Click(object sender, EventArgs e)
        {
            try
            {
                Process.Start("http://www.corioland.eu");
            }
            catch (Exception xcp)
            {
                MessageBox.Show(xcp.Message);
            }
        }

        /// <summary>
        ///     affiche le curseur "pointeur" lors du survol de l'url
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void toolstriplbl_url_MouseHover(object sender, EventArgs e)
        {
            try
            {
                this.Cursor = Cursors.Hand;
            }
            catch (Exception xcp)
            {
                MessageBox.Show(xcp.Message);
            }
        }

        /// <summary>
        ///     affiche le curseur par défaut lorsque la souris sort de la zone de l'url
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void toolstriplbl_url_MouseLeave(object sender, EventArgs e)
        {
            try
            {
                this.Cursor = Cursors.Default;
            }
            catch (Exception xcp)
            {
                MessageBox.Show(xcp.Message);
            }
        }
        /// <summary>
        ///     méthode appelée au chargement de la form.
        ///     initialise la combo box et le folderBrowser.
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void MainForm_Load(object sender, EventArgs e)
        {
            try
            {
                /* OLD
                Cbo_format.Items.Add("M3U");
                //Cbo_format.Items.Add("WPL");
                Cbo_format.SelectedIndex = 0;*/

                /* NEW */
                listeFormat = new List<FormatPlaylist>();
                listeFormat.Add(FormatPlaylist.M3U);
                Cbo_format.DataSource = listeFormat;

                folderBrowser = new FolderBrowserDialog();
            }
            catch (Exception xcp)
            {
                MessageBox.Show(xcp.Message);
            }
        }

        /// <summary>
        ///     chois du dossier su le bouton parcourir pour choisir le dossier à scanner
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btn_parcourir_Click(object sender, EventArgs e)
        {
            try
            {
                if (folderBrowser.ShowDialog() == DialogResult.OK)
                {
                    Tb_dossier.Text = folderBrowser.SelectedPath;
                    errorProvider.SetError(Tb_dossier, "");
                }
            }
            catch (Exception xcp)
            {
                MessageBox.Show(xcp.Message);
            }
        }

        /// <summary>
        ///     méthode appelée lors du clic sur le bouton générer.
        ///     Vérifie les infos entrées par l'utilisateur
        ///     Lance le thread de génération si les infos sont ok!
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btn_generer_Click(object sender, EventArgs e)
        {
            try
            {
                /* OLD
                switch (Cbo_format.SelectedText)
                {
                    case "M3U": Format = FormatPlaylist.M3U;
                        break;
                    case "WPL": Format = FormatPlaylist.WPL;
                        break;
                } */

                /* NEW */
                Format = (FormatPlaylist)Cbo_format.SelectedItem;
                bool test = true;

                if (Tb_dossier.Text.Trim().Length == 0)
                {
                    test = false;
                    errorProvider.SetError(Tb_dossier, "Merci de saisir un chemin de fichier à explorer avant de commencer la génération!");
                }
                if (textBox_chemin_gene.Text.Trim().Length == 0)
                {
                    test = false;
                    errorProvider.SetError(textBox_chemin_gene, "Merci de saisir un chemin de fichier où générer les playlists!");
                }

                if (test)
                {
                    toolstriplbl_status.Text = "Génération en cours...";
                    toolProgressBar.Minimum = 0;
                    toolProgressBar.Maximum = 100;
                    errorProvider.SetError(Tb_dossier, "");
                    Repertoire_a_Scanner = Tb_dossier.Text;
                    Repertoire_Sortie = textBox_chemin_gene.Text;
                    UpdateProgressBar += new MaJProgressBar(MainForm_UpdateProgressBar);
                    threadGenerateur = new Thread(new ThreadStart(GenerePlaylist));
                    threadGenerateur.Start();
                }
            }
            catch (Exception xcp)
            {
                MessageBox.Show(xcp.Message);
            }
        }

        /// <summary>
        ///     Méthode appelée par le délégué de maj de la progress bar.
        /// </summary>
        /// <param name="pourcentage"></param>
        void MainForm_UpdateProgressBar(int pourcentage)
        {
            try
            {
                if (pourcentage != 100)
                {
                    toolProgressBar.Value = pourcentage;
                }
                else
                {
                    toolProgressBar.Value = pourcentage;
                    toolstriplbl_status.Text = "Génération terminée!";
                }
            }
            catch (Exception xcp)
            {
                MessageBox.Show(xcp.Message);
            }
        }

        /// <summary>
        ///     Méthode appelée par le thread de génération de la playlist
        /// </summary>
        private void GenerePlaylist()
        {
            try
            {
                switch(Format)
                {
                    case FormatPlaylist.M3U:
                        string[] directories = Directory.GetDirectories(Repertoire_a_Scanner);
                        int nbDirectory = directories.Length;
                        int count = 0;
                        writeM3U(Repertoire_a_Scanner);
                        foreach (string directory in directories)
                        {
                            writeM3U(directory);
                            count++;
                            int percent = (count * 100) / nbDirectory;
                            object[] param = new object[1];
                            param[0] = percent;
                            Invoke(UpdateProgressBar, param);
                        }
                        object[] param2 = new object[1];
                        param2[0] = 100;
                        Invoke(UpdateProgressBar, param2);
                        break;
                }
            }
            catch (Exception xcp)
            {
                MessageBox.Show(xcp.Message);
            }
        }

        /// <summary>
        ///     Méthode chargé de l'écriture du fichier M3U
        /// </summary>
        /// <param name="directory"></param>
        private void writeM3U(string directory)
        {
            try
            {
                string[] files = Directory.GetFiles(directory);
                string[] directories = Directory.GetDirectories(directory);

                if (files.Length > 0)
                {
                    bool canWrite = false;
                    foreach (string file in files)
                    {
                        string ext = Path.GetExtension(file).ToUpper();
                        if (ext == ".MP3" || ext == ".WMA" || ext == ".WAV" || ext == ".OGG")
                        {
                            canWrite = true;
                        }
                    }

                    if (canWrite)
                    {
                        string directoryName = Path.GetFileName(directory);
                        FileStream fs = new FileStream(Repertoire_Sortie + "\\" + directoryName + ".m3u", FileMode.OpenOrCreate);
                        StreamWriter writer = new StreamWriter(fs, Encoding.Default);
                        writer.WriteLine("#EXTM3U");
                        foreach (string file in files)
                        {
                            string ext = Path.GetExtension(file).ToUpper();
                            if (ext == ".MP3" || ext == ".WMA" || ext == ".WAV" || ext == ".OGG")
                            {
                                writer.WriteLine("#EXTINF:0," + Path.GetFileName(file));
                                writer.WriteLine(Path.GetFullPath(file));
                                writer.WriteLine();
                            }
                        }
                        writer.Flush();
                        writer.Close();
                        fs.Close();
                    }

                    foreach (string rep in directories)
                    {
                        writeM3U(rep);
                    }
                    
                }
                
            }
            catch (Exception xcp)
            {
                Console.WriteLine(xcp.Message);
            }
        }

        /// <summary>
        ///     Méthode appelée lors du clic sur le bouton parcourir pour choisir le dossier de sortie des playlists
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btn_brows_gene_Click(object sender, EventArgs e)
        {
            try
            {
                if (folderBrowser.ShowDialog() == DialogResult.OK)
                {
                    textBox_chemin_gene.Text = folderBrowser.SelectedPath;
                    errorProvider.SetError(textBox_chemin_gene, "");
                }
            }
            catch (Exception xcp)
            {
                Console.WriteLine(xcp.Message);
            }
        }

        
    }
}