Added playlist maker

MusicPlayer/MusicPlayer/Main.cs

@@ -39,6 +39,18 @@ namespace MusicPlayer
             this.pl.GetPlaylists().ForEach(p => form.PlaylistBox.Items.Add(p.name));
         }
 
+        public void Repopulate()
+        {
+            form.AlbumListView.Items.Clear();
+            form.ArtistListBox.Items.Clear();
+            form.GenreListBox.Items.Clear();
+            form.PlaylistBox.Items.Clear();
+            this.api.GetAlbums().ForEach(a => form.AlbumListView.Items.Add(a.albumnaam));
+            this.api.GetArtists().ForEach(a => form.ArtistListBox.Items.Add(a.naam));
+            this.api.GetGenres().ForEach(g => form.GenreListBox.Items.Add(g.name));
+            this.pl.GetPlaylists().ForEach(p => form.PlaylistBox.Items.Add(p.name));
+        }
+
         public void ArtistFilter(string artist)
         {
             table.Clear();
@@ -57,6 +69,13 @@ namespace MusicPlayer
             });
         }
 
+        public void PlaylistFilter(string name)
+        {
+            table.Clear();
+            pl.GetPlaylistByName(name).GetSongs().ForEach(s => table.Add(s));
+
+        }
+
         public void AlbumFilter(string album)
         {
             table.Clear();

MusicPlayer/MusicPlayer/MainForm.Designer.cs

@@ -35,6 +35,7 @@
             this.AlbumListView = new System.Windows.Forms.ListView();
             this.ArtistListBox = new System.Windows.Forms.ListBox();
             this.MainPanel = new System.Windows.Forms.Panel();
+            this.PlaylistListLabel = new System.Windows.Forms.Label();
             this.AlbumListLabel = new System.Windows.Forms.Label();
             this.ArtistListLabel = new System.Windows.Forms.Label();
             this.GenreListLabel = new System.Windows.Forms.Label();
@@ -43,9 +44,14 @@
             this.fileToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
             this.openToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
             this.saveToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.toolStripSeparator1 = new System.Windows.Forms.ToolStripSeparator();
+            this.exitToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
             this.viewToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
-            this.playlistsToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
             this.overviewToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.playlistsToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.playlistToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.saveToolStripMenuItem1 = new System.Windows.Forms.ToolStripMenuItem();
+            this.loadToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
             this.ControlsPanel = new System.Windows.Forms.Panel();
             this.CurrentSongLabel = new System.Windows.Forms.Label();
             this.SeperatorLabel = new System.Windows.Forms.Label();
@@ -59,12 +65,7 @@
             this.PlayButton = new System.Windows.Forms.Button();
             this.UpdateTimer = new System.Windows.Forms.Timer(this.components);
             this.notifyIcon1 = new System.Windows.Forms.NotifyIcon(this.components);
-            this.PlaylistListLabel = new System.Windows.Forms.Label();
-            this.playlistToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
-            this.saveToolStripMenuItem1 = new System.Windows.Forms.ToolStripMenuItem();
-            this.loadToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
-            this.exitToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
-            this.toolStripSeparator1 = new System.Windows.Forms.ToolStripSeparator();
+            this.makeToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
             ((System.ComponentModel.ISupportInitialize)(this.SongsTableView)).BeginInit();
             this.MainPanel.SuspendLayout();
             this.MenuStrip.SuspendLayout();
@@ -150,6 +151,16 @@
             this.MainPanel.Size = new System.Drawing.Size(784, 352);
             this.MainPanel.TabIndex = 5;
             // 
+            // PlaylistListLabel
+            // 
+            this.PlaylistListLabel.AutoSize = true;
+            this.PlaylistListLabel.Location = new System.Drawing.Point(12, 8);
+            this.PlaylistListLabel.Name = "PlaylistListLabel";
+            this.PlaylistListLabel.Size = new System.Drawing.Size(39, 13);
+            this.PlaylistListLabel.TabIndex = 7;
+            this.PlaylistListLabel.Text = "Playlist";
+            this.PlaylistListLabel.Visible = false;
+            // 
             // AlbumListLabel
             // 
             this.AlbumListLabel.AutoSize = true;
@@ -187,6 +198,7 @@
             this.PlaylistBox.Size = new System.Drawing.Size(760, 134);
             this.PlaylistBox.TabIndex = 4;
             this.PlaylistBox.Visible = false;
+            this.PlaylistBox.SelectedIndexChanged += new System.EventHandler(this.PlaylistBox_SelectedIndexChanged);
             // 
             // MenuStrip
             // 
@@ -224,6 +236,18 @@
             this.saveToolStripMenuItem.Size = new System.Drawing.Size(103, 22);
             this.saveToolStripMenuItem.Text = "Save";
             // 
+            // toolStripSeparator1
+            // 
+            this.toolStripSeparator1.Name = "toolStripSeparator1";
+            this.toolStripSeparator1.Size = new System.Drawing.Size(100, 6);
+            // 
+            // exitToolStripMenuItem
+            // 
+            this.exitToolStripMenuItem.Name = "exitToolStripMenuItem";
+            this.exitToolStripMenuItem.Size = new System.Drawing.Size(103, 22);
+            this.exitToolStripMenuItem.Text = "Exit";
+            this.exitToolStripMenuItem.Click += new System.EventHandler(this.exitToolStripMenuItem_Click);
+            // 
             // viewToolStripMenuItem
             // 
             this.viewToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
@@ -233,6 +257,13 @@
             this.viewToolStripMenuItem.Size = new System.Drawing.Size(44, 20);
             this.viewToolStripMenuItem.Text = "View";
             // 
+            // overviewToolStripMenuItem
+            // 
+            this.overviewToolStripMenuItem.Name = "overviewToolStripMenuItem";
+            this.overviewToolStripMenuItem.Size = new System.Drawing.Size(123, 22);
+            this.overviewToolStripMenuItem.Text = "Overview";
+            this.overviewToolStripMenuItem.Click += new System.EventHandler(this.overviewToolStripMenuItem_Click);
+            // 
             // playlistsToolStripMenuItem
             // 
             this.playlistsToolStripMenuItem.Name = "playlistsToolStripMenuItem";
@@ -240,12 +271,27 @@
             this.playlistsToolStripMenuItem.Text = "Playlists";
             this.playlistsToolStripMenuItem.Click += new System.EventHandler(this.playlistsToolStripMenuItem_Click);
             // 
-            // overviewToolStripMenuItem
+            // playlistToolStripMenuItem
             // 
-            this.overviewToolStripMenuItem.Name = "overviewToolStripMenuItem";
-            this.overviewToolStripMenuItem.Size = new System.Drawing.Size(123, 22);
-            this.overviewToolStripMenuItem.Text = "Overview";
-            this.overviewToolStripMenuItem.Click += new System.EventHandler(this.overviewToolStripMenuItem_Click);
+            this.playlistToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
+            this.saveToolStripMenuItem1,
+            this.loadToolStripMenuItem,
+            this.makeToolStripMenuItem});
+            this.playlistToolStripMenuItem.Name = "playlistToolStripMenuItem";
+            this.playlistToolStripMenuItem.Size = new System.Drawing.Size(56, 20);
+            this.playlistToolStripMenuItem.Text = "Playlist";
+            // 
+            // saveToolStripMenuItem1
+            // 
+            this.saveToolStripMenuItem1.Name = "saveToolStripMenuItem1";
+            this.saveToolStripMenuItem1.Size = new System.Drawing.Size(152, 22);
+            this.saveToolStripMenuItem1.Text = "Save";
+            // 
+            // loadToolStripMenuItem
+            // 
+            this.loadToolStripMenuItem.Name = "loadToolStripMenuItem";
+            this.loadToolStripMenuItem.Size = new System.Drawing.Size(152, 22);
+            this.loadToolStripMenuItem.Text = "Load";
             // 
             // ControlsPanel
             // 
@@ -373,48 +419,12 @@
             this.notifyIcon1.Visible = true;
             this.notifyIcon1.Click += new System.EventHandler(this.notifyIcon1_Click);
             // 
-            // PlaylistListLabel
+            // makeToolStripMenuItem
             // 
-            this.PlaylistListLabel.AutoSize = true;
-            this.PlaylistListLabel.Location = new System.Drawing.Point(12, 8);
-            this.PlaylistListLabel.Name = "PlaylistListLabel";
-            this.PlaylistListLabel.Size = new System.Drawing.Size(39, 13);
-            this.PlaylistListLabel.TabIndex = 7;
-            this.PlaylistListLabel.Text = "Playlist";
-            this.PlaylistListLabel.Visible = false;
-            // 
-            // playlistToolStripMenuItem
-            // 
-            this.playlistToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
-            this.saveToolStripMenuItem1,
-            this.loadToolStripMenuItem});
-            this.playlistToolStripMenuItem.Name = "playlistToolStripMenuItem";
-            this.playlistToolStripMenuItem.Size = new System.Drawing.Size(56, 20);
-            this.playlistToolStripMenuItem.Text = "Playlist";
-            // 
-            // saveToolStripMenuItem1
-            // 
-            this.saveToolStripMenuItem1.Name = "saveToolStripMenuItem1";
-            this.saveToolStripMenuItem1.Size = new System.Drawing.Size(152, 22);
-            this.saveToolStripMenuItem1.Text = "Save";
-            // 
-            // loadToolStripMenuItem
-            // 
-            this.loadToolStripMenuItem.Name = "loadToolStripMenuItem";
-            this.loadToolStripMenuItem.Size = new System.Drawing.Size(152, 22);
-            this.loadToolStripMenuItem.Text = "Load";
-            // 
-            // exitToolStripMenuItem
-            // 
-            this.exitToolStripMenuItem.Name = "exitToolStripMenuItem";
-            this.exitToolStripMenuItem.Size = new System.Drawing.Size(152, 22);
-            this.exitToolStripMenuItem.Text = "Exit";
-            this.exitToolStripMenuItem.Click += new System.EventHandler(this.exitToolStripMenuItem_Click);
-            // 
-            // toolStripSeparator1
-            // 
-            this.toolStripSeparator1.Name = "toolStripSeparator1";
-            this.toolStripSeparator1.Size = new System.Drawing.Size(149, 6);
+            this.makeToolStripMenuItem.Name = "makeToolStripMenuItem";
+            this.makeToolStripMenuItem.Size = new System.Drawing.Size(152, 22);
+            this.makeToolStripMenuItem.Text = "Make";
+            this.makeToolStripMenuItem.Click += new System.EventHandler(this.makeToolStripMenuItem_Click);
             // 
             // MainForm
             // 
@@ -481,6 +491,7 @@
         private System.Windows.Forms.ToolStripMenuItem saveToolStripMenuItem1;
         private System.Windows.Forms.ToolStripMenuItem loadToolStripMenuItem;
         private System.Windows.Forms.ToolStripSeparator toolStripSeparator1;
+        private System.Windows.Forms.ToolStripMenuItem makeToolStripMenuItem;
     }
 }
 

MusicPlayer/MusicPlayer/MainForm.cs

@@ -98,6 +98,14 @@ namespace MusicPlayer
             }
         }
 
+        private void PlaylistBox_SelectedIndexChanged(object sender, EventArgs e)
+        {
+            if (PlaylistBox.SelectedItems.Count != 0)
+            {
+                main.PlaylistFilter(PlaylistBox.SelectedItems[0].ToString());
+            }
+        }
+
         private void ArtistListBox_SelectedIndexChanged(object sender, EventArgs e)
         {
             if (ArtistListBox.SelectedItems.Count != 0)
@@ -175,5 +183,12 @@ namespace MusicPlayer
             main.audio.AState = AudioHandler.AudioState.STOPPED;
             System.Windows.Forms.Application.Exit();
         }
+
+        private void makeToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            new PlaylistMaker(main.pl, main.api).Show();
+
+
+        }
     }
 }

MusicPlayer/MusicPlayer/MusicPlayer.csproj

@@ -75,6 +75,12 @@
     </Compile>
     <Compile Include="Playlist.cs" />
     <Compile Include="PlaylistHandler.cs" />
+    <Compile Include="PlaylistMaker.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="PlaylistMaker.Designer.cs">
+      <DependentUpon>PlaylistMaker.cs</DependentUpon>
+    </Compile>
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Song.cs" />
@@ -88,6 +94,9 @@
     <EmbeddedResource Include="NotificationPopup.resx">
       <DependentUpon>NotificationPopup.cs</DependentUpon>
     </EmbeddedResource>
+    <EmbeddedResource Include="PlaylistMaker.resx">
+      <DependentUpon>PlaylistMaker.cs</DependentUpon>
+    </EmbeddedResource>
     <EmbeddedResource Include="Properties\Resources.resx">
       <Generator>ResXFileCodeGenerator</Generator>
       <LastGenOutput>Resources.Designer.cs</LastGenOutput>

MusicPlayer/MusicPlayer/Playlist.cs

@@ -8,12 +8,16 @@ namespace MusicPlayer
     {
         public string name { get; }
         private string basedir;
-        public List<Song> songs; 
-        public Playlist(string name, string basedir)
+        public List<Song> songs;
+
+        private APIHandler api;
+        public Playlist(string name, string basedir, APIHandler api)
         {
             this.songs = new List<Song>();
             this.name = name;
+            this.api = api;
             this.basedir = basedir;
+            this.ReadFromFile();
         }
 
         public void AddSong(Song s)
@@ -21,6 +25,34 @@ namespace MusicPlayer
             this.songs.Add(s);
         }
 
+        public List<Song> GetSongs()
+        {
+            return songs;
+        } 
+
+        public void ReadFromFile()
+        {
+            try {
+                using (StreamReader str = new StreamReader(basedir + name + ".txt"))
+                {
+                    string readline;
+                    while ((readline = str.ReadLine()) != null)
+                    {
+                        string[] songsvalues = readline.Split('|');
+
+                        songs.Add(new Song(songsvalues[0], songsvalues[1], songsvalues[2], songsvalues[3], songsvalues[4], Int32.Parse(songsvalues[5]), api));
+                    }
+                }
+            }
+            catch (FileNotFoundException)
+            {
+                FileStream fs = new FileStream(basedir + name + ".txt", FileMode.CreateNew);
+                fs.Close();
+                ReadFromFile();
+            }
+            
+        }
+
         public void WriteToFile()
         {
             using (StreamWriter stw = new StreamWriter(basedir + name + ".txt"))
@@ -29,6 +61,7 @@ namespace MusicPlayer
                 {
                     stw.WriteLine(s.ToString());
                 });
+                stw.Flush();
             }
         }
     }

MusicPlayer/MusicPlayer/PlaylistHandler.cs

@@ -8,10 +8,12 @@ namespace MusicPlayer
     public class PlaylistHandler
     {
         private List<Playlist> playlists;
+        private APIHandler api;
         private readonly string basedir = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) + "\\.mpplaylists\\";
-        public PlaylistHandler()
+        public PlaylistHandler(APIHandler api)
         {
             this.playlists = new List<Playlist>();
+            this.api = api;
             Populate();
         }
 
@@ -22,7 +24,7 @@ namespace MusicPlayer
                 {
                     if (f.EndsWith(".txt"))
                     {
-                        playlists.Add(new Playlist(Path.GetFileName(f.Replace(".txt","")) ,basedir));
+                        playlists.Add(new Playlist(Path.GetFileName(f.Replace(".txt","")) ,basedir, api));
                     }
                 });
             }
@@ -35,6 +37,21 @@ namespace MusicPlayer
 
         }
 
+        public void MakeNewPlaylistByName(string name)
+        {
+            playlists.Add(new Playlist(name, basedir, api));
+        }
+
+        public Playlist GetPlaylistByName(string name)
+        {
+            Playlist toFind = null;
+            playlists.ForEach(p =>
+            {
+                if (p.name == name) { toFind = p; }
+            });
+            return toFind;
+        } 
+
         public List<Playlist> GetPlaylists()
         {
             return playlists;

MusicPlayer/MusicPlayer/PlaylistMaker.Designer.cs

@@ -0,0 +1,121 @@
+using System.Windows.Forms;
+
+namespace MusicPlayer
+{
+    partial class PlaylistMaker
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.PlaylistSelectBox = new System.Windows.Forms.ComboBox();
+            this.PlaylistSongSelector = new System.Windows.Forms.ListBox();
+            this.PlaylistAddSongsButton = new System.Windows.Forms.Button();
+            this.PlaylistSongContainer = new System.Windows.Forms.ListBox();
+            this.PlaylistNewButton = new System.Windows.Forms.Button();
+            this.PlaylistNewInputfield = new System.Windows.Forms.TextBox();
+            this.SuspendLayout();
+            // 
+            // PlaylistSelectBox
+            // 
+            this.PlaylistSelectBox.FormattingEnabled = true;
+            this.PlaylistSelectBox.Location = new System.Drawing.Point(12, 12);
+            this.PlaylistSelectBox.Name = "PlaylistSelectBox";
+            this.PlaylistSelectBox.Size = new System.Drawing.Size(354, 21);
+            this.PlaylistSelectBox.TabIndex = 0;
+            this.PlaylistSelectBox.SelectedIndexChanged += new System.EventHandler(this.PlaylistSelectBox_SelectedIndexChanged);
+            // 
+            // PlaylistSongSelector
+            // 
+            this.PlaylistSongSelector.FormattingEnabled = true;
+            this.PlaylistSongSelector.Location = new System.Drawing.Point(13, 39);
+            this.PlaylistSongSelector.Name = "PlaylistSongSelector";
+            this.PlaylistSongSelector.SelectionMode = System.Windows.Forms.SelectionMode.MultiExtended;
+            this.PlaylistSongSelector.Size = new System.Drawing.Size(353, 160);
+            this.PlaylistSongSelector.TabIndex = 1;
+            // 
+            // PlaylistAddSongsButton
+            // 
+            this.PlaylistAddSongsButton.Location = new System.Drawing.Point(12, 293);
+            this.PlaylistAddSongsButton.Name = "PlaylistAddSongsButton";
+            this.PlaylistAddSongsButton.Size = new System.Drawing.Size(354, 23);
+            this.PlaylistAddSongsButton.TabIndex = 2;
+            this.PlaylistAddSongsButton.Text = "Add";
+            this.PlaylistAddSongsButton.UseVisualStyleBackColor = true;
+            this.PlaylistAddSongsButton.Click += new System.EventHandler(this.PlaylistAddSongsButton_Click);
+            // 
+            // PlaylistSongContainer
+            // 
+            this.PlaylistSongContainer.FormattingEnabled = true;
+            this.PlaylistSongContainer.Location = new System.Drawing.Point(12, 205);
+            this.PlaylistSongContainer.Name = "PlaylistSongContainer";
+            this.PlaylistSongContainer.Size = new System.Drawing.Size(354, 82);
+            this.PlaylistSongContainer.TabIndex = 3;
+            // 
+            // PlaylistNewButton
+            // 
+            this.PlaylistNewButton.Location = new System.Drawing.Point(118, 342);
+            this.PlaylistNewButton.Name = "PlaylistNewButton";
+            this.PlaylistNewButton.Size = new System.Drawing.Size(75, 23);
+            this.PlaylistNewButton.TabIndex = 4;
+            this.PlaylistNewButton.Text = "New";
+            this.PlaylistNewButton.UseVisualStyleBackColor = true;
+            this.PlaylistNewButton.Click += new System.EventHandler(this.PlaylistNewButton_Click);
+            // 
+            // PlaylistNewInputfield
+            // 
+            this.PlaylistNewInputfield.Location = new System.Drawing.Point(12, 342);
+            this.PlaylistNewInputfield.Name = "PlaylistNewInputfield";
+            this.PlaylistNewInputfield.Size = new System.Drawing.Size(100, 20);
+            this.PlaylistNewInputfield.TabIndex = 5;
+            // 
+            // PlaylistMaker
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(382, 400);
+            this.Controls.Add(this.PlaylistNewInputfield);
+            this.Controls.Add(this.PlaylistNewButton);
+            this.Controls.Add(this.PlaylistSongContainer);
+            this.Controls.Add(this.PlaylistAddSongsButton);
+            this.Controls.Add(this.PlaylistSongSelector);
+            this.Controls.Add(this.PlaylistSelectBox);
+            this.Name = "PlaylistMaker";
+            this.Text = "PlaylistMaker";
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.ComboBox PlaylistSelectBox;
+        private System.Windows.Forms.ListBox PlaylistSongSelector;
+        private System.Windows.Forms.Button PlaylistAddSongsButton;
+        private System.Windows.Forms.ListBox PlaylistSongContainer;
+        private Button PlaylistNewButton;
+        private TextBox PlaylistNewInputfield;
+    }
+}

MusicPlayer/MusicPlayer/PlaylistMaker.cs

@@ -0,0 +1,86 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace MusicPlayer
+{
+    public partial class PlaylistMaker : Form
+    {
+        private PlaylistHandler pl;
+        private APIHandler api;
+
+        private List<Song> allPlaylistSongs;
+        private List<Song> allsongs; 
+
+        public PlaylistMaker(PlaylistHandler pl, APIHandler api)
+        {
+            this.pl = pl;
+            this.api = api;
+            this.allPlaylistSongs = new List<Song>();
+            this.allsongs = new List<Song>();
+            InitializeComponent();
+            Populate();
+        }
+
+        public void PlaylistSelectBox_SelectedIndexChanged(object sender, EventArgs e)
+        {
+            if (PlaylistSelectBox.SelectedItem != null)
+            {
+                PlaylistSongContainer.Items.Clear();
+                allPlaylistSongs = pl.GetPlaylistByName(PlaylistSelectBox.SelectedItem.ToString()).GetSongs();
+                allPlaylistSongs.ForEach(s => PlaylistSongContainer.Items.Add(s.Name));
+            }
+        }
+
+        public void Repopulate()
+        {
+            PlaylistSelectBox.Items.Clear();
+            pl.GetPlaylists().ForEach(p => PlaylistSelectBox.Items.Add(p.name));
+            if (PlaylistSelectBox.SelectedItem != null)
+            {
+                PlaylistSongContainer.Items.Clear();
+                allPlaylistSongs = pl.GetPlaylistByName(PlaylistSelectBox.SelectedItem.ToString()).GetSongs();
+                allPlaylistSongs.ForEach(s => PlaylistSongContainer.Items.Add(s.Name));
+            }
+        }
+
+        public void Populate()
+        {
+            pl.GetPlaylists().ForEach(p => PlaylistSelectBox.Items.Add(p.name));
+            allsongs = api.GetAllSongs();
+            allsongs.ForEach(s => PlaylistSongSelector.Items.Add(s.Name));
+        }
+
+        private void PlaylistAddSongsButton_Click(object sender, EventArgs e)
+        {
+            if (PlaylistSelectBox.SelectedItem!=null)
+            {
+                Playlist currentPlaylist = pl.GetPlaylistByName(PlaylistSelectBox.SelectedItem.ToString());
+                foreach (string song in PlaylistSongSelector.SelectedItems)
+                {
+                    foreach (Song s in allsongs) {
+                        if (s.Name == song)
+                        {
+                            currentPlaylist.AddSong(s);
+                            break;
+                        }
+                    }
+                }
+                currentPlaylist.WriteToFile();
+            }
+            Repopulate();
+        }
+
+        private void PlaylistNewButton_Click(object sender, EventArgs e)
+        {
+            pl.MakeNewPlaylistByName(PlaylistNewInputfield.Text);
+            Repopulate();
+        }
+    }
+}

MusicPlayer/MusicPlayer/PlaylistMaker.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

MusicPlayer/MusicPlayer/Program.cs

@@ -20,7 +20,7 @@ namespace MusicPlayer
             NetworkHandler nw = new NetworkHandler("http://www.imegumii.nl");
             APIHandler api = new APIHandler(nw);
             MainForm form = new MainForm();
-            PlaylistHandler pl = new PlaylistHandler();
+            PlaylistHandler pl = new PlaylistHandler(api);
             new Main(nw, api, form,pl);
 
             Application.Run(form);

MusicPlayer/MusicPlayer/Song.cs

@@ -51,7 +51,7 @@ namespace MusicPlayer
 
         public override string ToString()
         {
-            return $"{this.SongID}|{this.Name}|{this.Album}|{this.Artist}|{this.Seconds}|{this.Genre}";
+            return $"{this.SongID}|{this.Name}|{this.Album}|{this.Artist}|{this.Genre}|{this.Seconds}";
         }
     }
 }