using PaintDotNet.Actions;
using PaintDotNet.Base;
using PaintDotNet.Data.Param;
using PaintDotNet.File;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.IO;
using System.Windows.Forms;

namespace PaintDotNet.Menus
{
    /// <summary>
    /// 文件菜单
    /// </summary>
    internal sealed class FileMenu : PdnMenuItem
    {
        private PdnMenuItem menuFileOpen;
        private PdnMenuItem menuFileSave;
        private PdnMenuItem menuFileSaveAs;
        private PdnMenuItem menuFileBulkSave;
        private PdnMenuItem menuFileSaveAll;
        private ToolStripSeparator menuFileSeparator1;
        private PdnMenuItem menuFileForceClose;
        private PdnMenuItem menuFileClearAll;
        private ToolStripSeparator menuFileSeparator2;
        private PdnMenuItem menuFileOpenRecent;
        private PdnMenuItem menuFileOpenRecentSentinel;
        private ToolStripSeparator menuFileSeparator3;
        private PdnMenuItem menuFileClose;
        private PdnMenuItem menuFileCloseAll;

        private bool OnCtrlF4Typed(Keys keys)
        {
            this.menuFileClose.PerformClick();
            return true;
        }

        public FileMenu(int menuId)
        {
            PdnBaseForm.RegisterFormHotKey(Keys.Control | Keys.F4, OnCtrlF4Typed);
            InitializeComponent();
            this.MenuId = menuId;
        }

        private void InitializeComponent()
        {
            this.menuFileOpen = new PdnMenuItem(ActionType.Open);
            this.menuFileOpen.NeedWaitKey = true;
            this.menuFileOpen.AutoNextScript = false;
            this.menuFileOpen.AutomaticScript = false;
            this.menuFileSave = new PdnMenuItem(ActionType.Save);
            this.menuFileSave.AutomaticScript = false;
            this.menuFileSaveAs = new PdnMenuItem(ActionType.SaveAs);
            this.menuFileSaveAs.AutomaticScript = false;
            this.menuFileBulkSave = new PdnMenuItem(ActionType.BulkSave);
            this.menuFileBulkSave.AutomaticScript = false;
            this.menuFileSaveAll = new PdnMenuItem(ActionType.SaveAll);
            this.menuFileSaveAll.AutomaticScript = false;
            this.menuFileSeparator1 = new ToolStripSeparator();
            this.menuFileForceClose = new PdnMenuItem(ActionType.ForceClose);
            this.menuFileClearAll = new PdnMenuItem(ActionType.ClearAll);
            this.menuFileSeparator2 = new ToolStripSeparator();
            this.menuFileOpenRecent = new PdnMenuItem(ActionType.OpenRecent);
            this.menuFileOpenRecent.CanUseInScript = false;
            this.menuFileOpenRecent.AutomaticScript = false;
            this.menuFileOpenRecentSentinel = new PdnMenuItem();
            this.menuFileSeparator3 = new ToolStripSeparator();
            this.menuFileClose = new PdnMenuItem(ActionType.Close);
            this.menuFileCloseAll = new PdnMenuItem(ActionType.CloseAll);
            //
            // FileMenu
            //
            this.DropDownItems.AddRange(GetMenuItemsToAdd());
            this.Name = "Menu.File";
            this.Text = PdnResources.GetString("Menu.File.Text");
            // 
            // menuFileOpen
            // 
            this.menuFileOpen.Click += new EventHandler(this.MenuFileOpen_Click);
            // 
            // menuFileSave
            // 
            this.menuFileSave.Click += new EventHandler(this.MenuFileSave_Click);
            // 
            // menuFileSaveAs
            // 
            this.menuFileSaveAs.Click += new EventHandler(this.MenuFileSaveAs_Click);
            //
            // 批量保存
            //
            this.menuFileBulkSave.Click += new EventHandler(this.MenuFileBulkSave_Click);
            //
            // 保存全部
            //
            this.menuFileSaveAll.Click += new EventHandler(this.MenuFileSaveAll_Click);
            //
            // 强制关闭
            //
            this.menuFileForceClose.Click += new EventHandler(this.MenuFileForceClose_Click);
            //
            // 清空全部
            //
            this.menuFileClearAll.Click += new EventHandler(this.MenuFileClearAll_Click);
            // 
            // 最近打开的文件
            // 
            this.menuFileOpenRecent.Name = "OpenRecent";
            this.menuFileOpenRecent.DropDownItems.AddRange(
                new ToolStripItem[]
                {
                    this.menuFileOpenRecentSentinel
                });
            this.menuFileOpenRecent.DropDownOpening += new EventHandler(this.MenuFileOpenRecent_DropDownOpening);
            // 
            // menuFileOpenRecentSentinel
            // 
            this.menuFileOpenRecentSentinel.Text = "sentinel";
            //
            // 关闭
            //
            this.menuFileClose.Click += new EventHandler(MenuFileClose_Click);
            //
            // 全部关闭
            //
            this.menuFileCloseAll.Click += new EventHandler(MenuFileCloseAll_Click);

            //
            // 加载菜单的文字和icon
            //
            this.LoadNames(this.Name);
            this.LoadIcons();
        }

        private ToolStripItem[] GetMenuItemsToAdd()
        {
            List<ToolStripItem> items = new List<ToolStripItem>();

            items.Add(this.menuFileOpen);
            items.Add(this.menuFileSave);
            items.Add(this.menuFileSaveAs);
            items.Add(this.menuFileBulkSave);
            items.Add(this.menuFileSaveAll);
            items.Add(this.menuFileSeparator1);
            items.Add(this.menuFileForceClose);
            items.Add(this.menuFileClearAll);
            items.Add(this.menuFileSeparator2);
            items.Add(this.menuFileOpenRecent);
            items.Add(this.menuFileSeparator3);
            items.Add(this.menuFileClose);
            items.Add(this.menuFileCloseAll);

            return items.ToArray();
        }

        protected override void OnDropDownOpening(EventArgs e)
        {
            this.DropDownItems.Clear();
            this.DropDownItems.AddRange(GetMenuItemsToAdd());

            this.menuFileOpen.Enabled = true/* && !AppWorkspace.ScriptRunning*/;
            this.menuFileOpenRecent.Enabled = true/* && !AppWorkspace.ScriptRunning*/;
            this.menuFileOpenRecentSentinel.Enabled = true/* && !AppWorkspace.ScriptRunning*/;

            if (AppWorkspace.ActiveDocumentWorkspace != null/* && !AppWorkspace.ScriptRunning*/)
            {
                this.menuFileForceClose.Enabled = true;
                this.menuFileClearAll.Enabled = true;
                this.menuFileSave.Enabled = true;
                this.menuFileSaveAs.Enabled = true;
                this.menuFileBulkSave.Enabled = true;
                this.menuFileSaveAll.Enabled = true;
                this.menuFileClose.Enabled = true;
                this.menuFileCloseAll.Enabled = true;
            }
            else
            {
                this.menuFileForceClose.Enabled = false;
                this.menuFileClearAll.Enabled = false;
                this.menuFileSave.Enabled = false;
                this.menuFileSaveAs.Enabled = false;
                this.menuFileBulkSave.Enabled = false;
                this.menuFileSaveAll.Enabled = false;
                this.menuFileClose.Enabled = false;
                this.menuFileCloseAll.Enabled = false;
            }

            base.OnDropDownOpening(e);
        }
        /// <summary>
        /// 打开
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void MenuFileOpen_Click(object sender, EventArgs e)
        {
            if (AppWorkspace.startScriptRecording) 
            {
                AppWorkspace.SetScriptStartRecording(((PdnMenuItem)sender).MenuId, ((PdnMenuItem)sender).Text, new List<Args>());
            }
            AppWorkspace.PerformAction(new OpenFileAction());
        }
        /// <summary>
        /// 保存
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void MenuFileSave_Click(object sender, EventArgs e)
        {
            if (AppWorkspace.ActiveDocumentWorkspace != null)
            {
                if (AppWorkspace.startScriptRecording)
                {
                    AppWorkspace.SetScriptStartRecording(((PdnMenuItem)sender).MenuId, ((PdnMenuItem)sender).Text, new List<Args>());
                }
                AppWorkspace.ActiveDocumentWorkspace.GraphicsList.UnselectAll();
                AppWorkspace.ActiveDocumentWorkspace.DoSaveNew();
            }
        }
        /// <summary>
        /// 另存为
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void MenuFileSaveAs_Click(object sender, EventArgs e)
        {
            if (AppWorkspace.ActiveDocumentWorkspace != null)
            {
                if (AppWorkspace.startScriptRecording)
                {
                    AppWorkspace.SetScriptStartRecording(((PdnMenuItem)sender).MenuId, ((PdnMenuItem)sender).Text, new List<Args>());
                }
                AppWorkspace.ActiveDocumentWorkspace.GraphicsList.UnselectAll();
                AppWorkspace.ActiveDocumentWorkspace.DoSaveAsNew(-1);
            }
        }
        /// <summary>
        /// 批量保存
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void MenuFileBulkSave_Click(object sender, EventArgs e)
        {
            using (BatchSaveDialog dialog = new BatchSaveDialog(AppWorkspace))
            {
                if (AppWorkspace.startScriptRecording)
                {
                    AppWorkspace.SetScriptStartRecording(((PdnMenuItem)sender).MenuId, ((PdnMenuItem)sender).Text, new List<Args>());
                }
                dialog.StartPosition = FormStartPosition.CenterScreen;
                dialog.ShowDialog();
            }
        }
        /// <summary>
        /// 保存全部
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void MenuFileSaveAll_Click(object sender, EventArgs e)
        {
            if (this.AppWorkspace != null && this.AppWorkspace.DocumentWorkspaces!=null)
            {
                foreach(DocumentWorkspace documentWorkspace in this.AppWorkspace.DocumentWorkspaces)
                {
                    if (AppWorkspace.startScriptRecording)
                    {
                        AppWorkspace.SetScriptStartRecording(((PdnMenuItem)sender).MenuId, ((PdnMenuItem)sender).Text, new List<Args>());
                    }
                    this.AppWorkspace.ActiveDocumentWorkspace.GraphicsList.UnselectAll();
                    this.AppWorkspace.ActiveDocumentWorkspace = documentWorkspace;
                    documentWorkspace.DoSaveNew();
                }
            }
        }
        /// <summary>
        /// 强制关闭
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void MenuFileForceClose_Click(object sender, EventArgs e)
        {
            if (this.AppWorkspace.DocumentWorkspaces.Length > 0)
            {
                if (AppWorkspace.startScriptRecording)
                {
                    AppWorkspace.SetScriptStartRecording(((PdnMenuItem)sender).MenuId, ((PdnMenuItem)sender).Text, new List<Args>());
                }
                this.AppWorkspace.ActiveDocumentWorkspace.Document.Dirty = false;
                this.AppWorkspace.PerformAction(new CloseWorkspaceAction());
            }
        }
        /// <summary>
        /// 清空全部
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void MenuFileClearAll_Click(object sender, EventArgs e)
        {
            DialogResult result = MessageBox.Show(PdnResources.GetString("Menu.file.Emptyall.Areyousuodifiedpicture.text")+"！", PdnResources.GetString("Menu.Empty.text"), MessageBoxButtons.YesNo, MessageBoxIcon.Question);
            if (result == DialogResult.Yes)
            {
                if (AppWorkspace.startScriptRecording)
                {
                    AppWorkspace.SetScriptStartRecording(((PdnMenuItem)sender).MenuId, ((PdnMenuItem)sender).Text, new List<Args>());
                }
                if (this.AppWorkspace.DocumentWorkspaces!=null && this.AppWorkspace.DocumentWorkspaces.Length > 0)
                {
                    foreach (DocumentWorkspace document in this.AppWorkspace.DocumentWorkspaces) 
                    {
                        this.AppWorkspace.ActiveDocumentWorkspace.Document.Dirty = false;
                        this.AppWorkspace.PerformAction(new CloseWorkspaceAction()); ;
                    }
                }
            }
        }
        /// <summary>
        /// 关闭
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void MenuFileClose_Click(object sender, EventArgs e)
        {
            if (this.AppWorkspace.DocumentWorkspaces.Length > 0)
            {
                if (AppWorkspace.startScriptRecording)
                {
                    AppWorkspace.SetScriptStartRecording(((PdnMenuItem)sender).MenuId, ((PdnMenuItem)sender).Text, new List<Args>());
                }
                this.AppWorkspace.ActiveDocumentWorkspace.GraphicsList.UnselectAll();
                this.AppWorkspace.PerformAction(new CloseWorkspaceAction());
            }
        }
        /// <summary>
        /// 全部关闭
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void MenuFileCloseAll_Click(object sender, EventArgs e)
        {
            if (AppWorkspace.DocumentWorkspaces != null
                && AppWorkspace.DocumentWorkspaces.Length > 0)
            {
                if (AppWorkspace.startScriptRecording)
                {
                    AppWorkspace.SetScriptStartRecording(((PdnMenuItem)sender).MenuId, ((PdnMenuItem)sender).Text, new List<Args>());
                }
                this.AppWorkspace.ActiveDocumentWorkspace.GraphicsList.UnselectAll();
                foreach (DocumentWorkspace document in AppWorkspace.DocumentWorkspaces)
                {
                    this.AppWorkspace.PerformAction(new CloseWorkspaceAction());
                }
            }
        }

        private void MenuFileOpenRecent_DropDownOpening(object sender, EventArgs e)
        {
            if (AppWorkspace.startScriptRecording)
            {
                AppWorkspace.SetScriptStartRecording(((PdnMenuItem)sender).MenuId, ((PdnMenuItem)sender).Text, new List<Args>());
            }
            AppWorkspace.MostRecentFiles.LoadMruList();
            MostRecentFile[] filesReverse = AppWorkspace.MostRecentFiles.GetFileList();
            MostRecentFile[] files = new MostRecentFile[filesReverse.Length];
            int i;

            for (i = 0; i < filesReverse.Length; ++i)
            {
                files[files.Length - i - 1] = filesReverse[i];
            }

            foreach (ToolStripItem mi in menuFileOpenRecent.DropDownItems)
            {
                mi.Click -= new EventHandler(MenuFileOpenRecentFile_Click);
            }

            menuFileOpenRecent.DropDownItems.Clear();

            i = 0;
            Image choise = PdnResources.GetImageResource("Icons.SwapIcon.png").Reference;
            Image nochoise = PdnResources.GetImageResource("Icons.SwatchIcon.png").Reference;
            foreach (MostRecentFile mrf in files)
            {
                string menuName;

                if (i < 9)
                {
                    menuName = "&";
                }
                else
                {
                    menuName = "";
                }

                menuName += (1 + i).ToString() + " " + Path.GetFileName(mrf.FileName);
               
                ToolStripMenuItem mi = new ToolStripMenuItem(menuName);
                mi.Alignment = ToolStripItemAlignment.Right;
                mi.Click += new EventHandler(MenuFileOpenRecentFile_Click);
                mi.ImageAlign = ContentAlignment.MiddleRight;
                mi.ImageScaling = ToolStripItemImageScaling.None;
                mi.Image = nochoise; //(Image)mrf.Thumb.Clone();
                menuFileOpenRecent.DropDownItems.Add(mi);
                ++i;
            }

            if (menuFileOpenRecent.DropDownItems.Count == 0)
            {
                ToolStripMenuItem none = new ToolStripMenuItem(PdnResources.GetString("Menu.File.OpenRecent.None"));
                none.Enabled = false;
                menuFileOpenRecent.DropDownItems.Add(none);
            }
            else
            {
                ToolStripSeparator separator = new ToolStripSeparator();
                menuFileOpenRecent.DropDownItems.Add(separator);

                ToolStripMenuItem clearList = new ToolStripMenuItem();
                clearList.Text = PdnResources.GetString("Menu.File.OpenRecent.ClearThisList");
                menuFileOpenRecent.DropDownItems.Add(clearList);
                Image deleteIcon = PdnResources.GetImageResource("Icons.MenuEditEraseSelectionIcon.png").Reference;
                clearList.ImageTransparentColor = Utility.TransparentKey;
                clearList.ImageAlign = ContentAlignment.MiddleCenter;
                clearList.ImageScaling = ToolStripItemImageScaling.None;
                /*
                int iconSize = AppWorkspace.MostRecentFiles.IconSize;
                Bitmap bitmap = new Bitmap(iconSize + 2, iconSize + 2);

                using (Graphics g = Graphics.FromImage(bitmap))
                {
                    g.Clear(clearList.ImageTransparentColor);

                    Point offset = new Point((bitmap.Width - deleteIcon.Width) / 2,
                        (bitmap.Height - deleteIcon.Height) / 2);

                    g.CompositingMode = CompositingMode.SourceCopy;
                    g.DrawImage(deleteIcon, offset.X, offset.Y, deleteIcon.Width, deleteIcon.Height);
                }

                clearList.Image = bitmap;*/
                clearList.Image = deleteIcon;
                clearList.Click += new EventHandler(ClearList_Click);
            }
        }

        private void MenuFileOpenRecentFile_Click(object sender, EventArgs e)
        {
            try
            {
                ToolStripMenuItem mi = (ToolStripMenuItem)sender;
                int spaceIndex = mi.Text.IndexOf(" ");
                string indexString = mi.Text.Substring(1, spaceIndex - 1);
                int index = int.Parse(indexString) - 1;
                MostRecentFile[] recentFiles = AppWorkspace.MostRecentFiles.GetFileList();
                string fileName = recentFiles[recentFiles.Length - index - 1].FileName;
                AppWorkspace.OpenFileInNewWorkspace(fileName);
            }

            catch (Exception)
            {
            }
        }

        private void ClearList_Click(object sender, EventArgs e)
        {
            string question = PdnResources.GetString("ClearOpenRecentList.Dialog.Text");
            DialogResult result = Utility.AskYesNo(AppWorkspace, question);

            if (result == DialogResult.Yes)
            {
                AppWorkspace.MostRecentFiles.Clear();
                AppWorkspace.MostRecentFiles.SaveMruList();
            }
            //AppWorkspace.PerformAction(new ClearMruListAction());
        }
    }
}