using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Windows.Forms;
using org.kbinani;
using org.kbinani.apputil;
using org.kbinani.cadencii;

class UtauPluginManager : Form {
    delegate void VoidDelegate();
    
    private Button btnOk;
    private Button btnAdd;
    private Button btnRemove;
    private Button btnCancel;
    /// <summary>
    /// この部分は、Utau Plugin Invoker.csについて、以下のテキスト処理を行ったもの。
    ///     1. 「"」を「\"」に置換（テキストモード）
    ///     2. 「\n」を「\\n" +\n"」に置換（正規表現モード）
    ///     3. 「Utau_Plugin_Invoker」を「{0}」に置換。
    ///     4. 「s_plugin_txt_path = @"E:\Program Files\UTAU\..(一部略)..";」を「s_plugin_txt_path = @"{1}";」に書き換え。
    /// または、付属のツールで次のように処理する
    ///     ParseUtauPluginInvoker.exe ".\ScriptImplement\Utau Plugin Invoker.cs" out.txt
    /// </summary>
    private static readonly String TEXT = "@@TEXT@@";
    private ListView listPlugins;
    private ColumnHeader headerName;
    private ColumnHeader headerPath;
    private OpenFileDialog openFileDialog;

    /// <summary>
    /// plugin.txtのパスのリスト
    /// </summary>
    public static List<string> Plugins = new List<string>();
    public static int ColumnWidthName = 100;
    public static int ColumnWidthPath = 200;
    public static int DialogWidth = 295;
    public static int DialogHeight = 352;
    private static List<string> oldPlugins = null;

    public UtauPluginManager() {
        InitializeComponent();
        if ( ColumnWidthName > 0 ) {
            headerName.Width = ColumnWidthName;
        }
        if ( ColumnWidthPath > 0 ) {
            headerPath.Width = ColumnWidthPath;
        }
        if ( DialogWidth > 0 ) {
            Width = DialogWidth;
        }
        if ( DialogHeight > 0 ) {
            Height = DialogHeight;
        }

        btnAdd.Text = _( "Add" );
        btnRemove.Text = _( "Remove" );
        btnOk.Text = _( "OK" );
        btnCancel.Text = _( "Cancel" );
        headerName.Text = _( "Name" );
        headerPath.Text = _( "Path" );

        oldPlugins = new List<string>();
        Encoding sjis = Encoding.GetEncoding( "Shift_JIS" );
        foreach ( string s in getPlugins() ) {
            if ( !System.IO.File.Exists( s ) ) {
                continue;
            }
            string name = getPluginName( s );
            if ( name != "" ) {
                listPlugins.Items.Add( new ListViewItem( new string[] { name, s } ) );
            }
            oldPlugins.Add( s );
        }
    }

    private static List<string> getPlugins() {
        if ( Plugins == null ) {
            Plugins = new List<string>();
        }
        return Plugins;
    }

    public static ScriptReturnStatus Edit( VsqFileEx vsq ) {
        UtauPluginManager dialog = new UtauPluginManager();
        dialog.ShowDialog();
        return ScriptReturnStatus.NOT_EDITED;
    }

    private void InitializeComponent() {
        this.btnOk = new System.Windows.Forms.Button();
        this.btnAdd = new System.Windows.Forms.Button();
        this.btnRemove = new System.Windows.Forms.Button();
        this.btnCancel = new System.Windows.Forms.Button();
        this.listPlugins = new System.Windows.Forms.ListView();
        this.headerName = new System.Windows.Forms.ColumnHeader();
        this.headerPath = new System.Windows.Forms.ColumnHeader();
        this.openFileDialog = new System.Windows.Forms.OpenFileDialog();
        this.SuspendLayout();
        // 
        // btnOk
        // 
        this.btnOk.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
        this.btnOk.DialogResult = System.Windows.Forms.DialogResult.OK;
        this.btnOk.Location = new System.Drawing.Point( 119, 283 );
        this.btnOk.Name = "btnOk";
        this.btnOk.Size = new System.Drawing.Size( 75, 23 );
        this.btnOk.TabIndex = 7;
        this.btnOk.Text = "OK";
        this.btnOk.UseVisualStyleBackColor = true;
        this.btnOk.Click += new System.EventHandler( this.btnOk_Click );
        // 
        // btnAdd
        // 
        this.btnAdd.Location = new System.Drawing.Point( 12, 12 );
        this.btnAdd.Name = "btnAdd";
        this.btnAdd.Size = new System.Drawing.Size( 75, 23 );
        this.btnAdd.TabIndex = 9;
        this.btnAdd.Text = "Add";
        this.btnAdd.UseVisualStyleBackColor = true;
        this.btnAdd.Click += new System.EventHandler( this.btnAdd_Click );
        // 
        // btnRemove
        // 
        this.btnRemove.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
        this.btnRemove.Location = new System.Drawing.Point( 200, 12 );
        this.btnRemove.Name = "btnRemove";
        this.btnRemove.Size = new System.Drawing.Size( 75, 23 );
        this.btnRemove.TabIndex = 10;
        this.btnRemove.Text = "Remove";
        this.btnRemove.UseVisualStyleBackColor = true;
        this.btnRemove.Click += new System.EventHandler( this.btnRemove_Click );
        // 
        // btnCancel
        // 
        this.btnCancel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
        this.btnCancel.DialogResult = System.Windows.Forms.DialogResult.Cancel;
        this.btnCancel.Location = new System.Drawing.Point( 200, 283 );
        this.btnCancel.Name = "btnCancel";
        this.btnCancel.Size = new System.Drawing.Size( 75, 23 );
        this.btnCancel.TabIndex = 11;
        this.btnCancel.Text = "Cancel";
        this.btnCancel.UseVisualStyleBackColor = true;
        // 
        // listPlugins
        // 
        this.listPlugins.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
                    | System.Windows.Forms.AnchorStyles.Left)
                    | System.Windows.Forms.AnchorStyles.Right)));
        this.listPlugins.Columns.AddRange( new System.Windows.Forms.ColumnHeader[] {
            this.headerName,
            this.headerPath} );
        this.listPlugins.FullRowSelect = true;
        this.listPlugins.HeaderStyle = System.Windows.Forms.ColumnHeaderStyle.Nonclickable;
        this.listPlugins.Location = new System.Drawing.Point( 12, 41 );
        this.listPlugins.Name = "listPlugins";
        this.listPlugins.Size = new System.Drawing.Size( 263, 236 );
        this.listPlugins.TabIndex = 12;
        this.listPlugins.UseCompatibleStateImageBehavior = false;
        this.listPlugins.View = System.Windows.Forms.View.Details;
        // 
        // headerName
        // 
        this.headerName.Text = "Name";
        // 
        // headerPath
        // 
        this.headerPath.Text = "Path";
        // 
        // openFileDialog
        // 
        this.openFileDialog.FileName = "plugin.txt";
        // 
        // UtauPluginManager
        // 
        this.AcceptButton = this.btnOk;
        this.CancelButton = this.btnCancel;
        this.ClientSize = new System.Drawing.Size( 287, 318 );
        this.Controls.Add( this.listPlugins );
        this.Controls.Add( this.btnCancel );
        this.Controls.Add( this.btnRemove );
        this.Controls.Add( this.btnAdd );
        this.Controls.Add( this.btnOk );
        this.MaximizeBox = false;
        this.MinimizeBox = false;
        this.Name = "UtauPluginManager";
        this.ShowIcon = false;
        this.ShowInTaskbar = false;
        this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
        this.Text = "UTAU Plugin Manager";
        this.FormClosing += new System.Windows.Forms.FormClosingEventHandler( this.UtauPluginManager_FormClosing );
        this.ResumeLayout( false );

    }

    private void btnAdd_Click( object sender, EventArgs e ) {
        if ( openFileDialog.ShowDialog() != DialogResult.OK ) {
            return;
        }

        string file = openFileDialog.FileName;
        string name = getPluginName( file );
        if ( name == "" ) {
            return;
        }

        foreach ( ListViewItem litem in listPlugins.Items ) {
            if ( litem.SubItems.Count < 2 ) {
                continue;
            }
            string tname = litem.SubItems[0].Text;
            string tfile = litem.SubItems[1].Text;

            if ( tname == name ) {
                org.kbinani.windows.forms.BDialogResult dr =
                    AppManager.showMessageBox( string.Format( _( "Script named '{0}' is already registered. Overwrite?" ), name ),
                                               "UTAU Plugin Manager",
                                               org.kbinani.windows.forms.Utility.MSGBOX_OK_CANCEL_OPTION,
                                               org.kbinani.windows.forms.Utility.MSGBOX_QUESTION_MESSAGE );
                if ( dr != org.kbinani.windows.forms.BDialogResult.YES ) {
                    return;
                }

                listPlugins.Items.Remove( litem );
                foreach ( string f in getPlugins() ) {
                    if ( f == tfile ) {
                        getPlugins().Remove( f );
                        break;
                    }
                }
            }
        }

        listPlugins.Items.Add( new ListViewItem( new string[] { name, file } ) );
        getPlugins().Add( file );
    }

    private static string getPluginName( string plugin_txt_file ) {
        if ( !fsys.isFileExists( plugin_txt_file ) ) {
            return "";
        }

        string name = "";
        using ( StreamReader sr = new StreamReader( plugin_txt_file, Encoding.GetEncoding( "Shift_JIS" ) ) ) {
            string line = "";
            while ( (line = sr.ReadLine()) != null ) {
                if ( line.StartsWith( "name=" ) ) {
                    name = line.Substring( 5 ).Trim();
                    break;
                }
            }
        }
        return name;
    }

    private static string _( string id ) {
        string lang = Messaging.getLanguage();
        if ( lang != "en" ) {
            if ( id == "Script named '{0}' is already registered. Overwrite?" ) {
                if ( lang == "ja" ) {
                    return "'{0}' という名前のスクリプトは既に登録されています。上書きしますか？";
                }
            } else if ( id == "Remove '{0}'?" ) {
                if ( lang == "ja" ) {
                    return "'{0}' を削除しますか？";
                }
            } else if ( id == "Add" ) {
                if ( lang == "ja" ) {
                    return "追加";
                }
            } else if ( id == "Remove" ) {
                if ( lang == "ja" ) {
                    return "削除";
                }
            } else if ( id == "OK" ) {
                if ( lang == "ja" ) {
                    return "了解";
                }
            } else if ( id == "Cancel" ) {
                if ( lang == "ja" ) {
                    return "取消";
                }
            } else if ( id == "Name" ) {
                if ( lang == "ja" ) {
                    return "名称";
                }
            } else if ( id == "Path" ) {
                if ( lang == "ja" ) {
                    return "保存場所";
                }
            }
        }
        return id;
    }

    private void UtauPluginManager_FormClosing( object sender, FormClosingEventArgs e ) {
        ColumnWidthName = headerName.Width;
        ColumnWidthPath = headerPath.Width;
        if ( WindowState == FormWindowState.Normal ) {
            DialogWidth = Width;
            DialogHeight = Height;
        }
    }

    private void btnRemove_Click( object sender, EventArgs e ) {
        int count = listPlugins.SelectedIndices.Count;
        if ( count <= 0 ) {
            return;
        }

        int indx = listPlugins.SelectedIndices[0];
        ListViewItem litem = listPlugins.Items[indx];
        if ( litem.SubItems.Count < 2 ){
            return;
        }
        string name = litem.SubItems[0].Text;
        string path = litem.SubItems[1].Text;

        org.kbinani.windows.forms.BDialogResult dr =
            AppManager.showMessageBox( string.Format( _( "Remove '{0}'?" ), name ),
                                       "UTAU Plugin Manager",
                                       org.kbinani.windows.forms.Utility.MSGBOX_YES_NO_OPTION,
                                       org.kbinani.windows.forms.Utility.MSGBOX_QUESTION_MESSAGE );
        if ( dr != org.kbinani.windows.forms.BDialogResult.YES ) {
            return;
        }

        listPlugins.Items.Remove( litem );
        if ( getPlugins().Contains( path ) ) {
            getPlugins().Remove( path );
        }
    }

    private void btnOk_Click( object sender, EventArgs e ) {
        if ( oldPlugins != null ) {
            // 削除されたスクリプトをアンインストールする
            foreach ( string file in oldPlugins ) {
                if ( !getPlugins().Contains( file ) ) {
                    string name = getPluginName( file );
                    if ( name != "" ) {
                        string script_path = fsys.combine( Utility.getScriptPath(), name + ".txt" );
                        if ( fsys.isFileExists( script_path ) ) {
                            PortUtil.deleteFile( script_path );
                        }
                    }
                }
            }
        }

        foreach ( string file in getPlugins() ) {
            if ( !fsys.isFileExists( file ) ) {
                continue;
            }

            string name = getPluginName( file );
            if ( name == "" ) {
                continue;
            }
            char[] invalid_classname = new char[] { ' ', '!', '#', '$', '%', '&', '\'', '(', ')', '=', '-', '~', '^', '`', '@', '{', '}', '[', ']', '+', '*', ';', '.' };
            foreach ( char c in invalid_classname ) {
                name = name.Replace( c, '_' );
            }
            string text = TEXT;
            string code = text.Replace( "{0}", name );
            code = code.Replace( "{1}", file );
            using ( StreamWriter sw = new StreamWriter( fsys.combine( Utility.getScriptPath(), name + ".txt" ) ) ) {
                sw.WriteLine( code );
            }
        }

        if ( AppManager.mMainWindow != null ) {
            VoidDelegate deleg = new VoidDelegate( AppManager.mMainWindow.updateScriptShortcut );
            if ( deleg != null ) {
                AppManager.mMainWindow.Invoke( deleg );
            }
        }
    }

    public static String GetDisplayName() {
        String lang = Messaging.getLanguage();
        if ( lang == "ja" ) {
            return "UTAU用プラグインをインストール";
        } else {
            return "Install UTAU Plugin";
        }
    }
}