using System;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;

namespace AppLauncher.Windows.Forms
{
    public class TForm : Form
    {
        protected readonly Color borderColour = Color.FromArgb(232, 231, 236);
        protected readonly int borderWidth = 1;

        protected readonly Color backColour = Color.FromArgb(254, 254, 254);

        protected readonly Color titleBarColour = Color.FromArgb(237, 240, 247);
        protected readonly Color titleBorderColour = Color.FromArgb(232, 231, 236);
        protected readonly Color titleColour = Color.FromArgb(32, 32, 33);
        protected readonly int titleBarHeight = 56;

        private bool isDragging = false;
        private Point startPosition = new Point();

        protected bool isBusy = false;

        protected internal RyzStudio.Windows.Forms.TImageBox imageBox3;
        protected internal RyzStudio.Windows.Forms.TImageBox imageBox2;
        protected internal RyzStudio.Windows.Forms.TImageBox imageBox1;
        private NotifyIcon notifyIcon1;
        private Panel panel1;
        private ContextMenuStrip contextMenuStrip1;
        private ToolStripMenuItem exitToolStripMenuItem;
        private IContainer components;

        public TForm() : base()
        {
            InitializeComponent();

            if (!this.DesignMode)
            {
                this.FormBorderStyle = FormBorderStyle.None;
                this.StartPosition = FormStartPosition.Manual;
            }

            this.BackColor = backColour;
            this.Padding = new Padding(0);

            notifyIcon1.Text = Application.ProductName;
        }

        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);

            this.SuspendLayout();

            imageBox3.Left = this.DisplayRectangle.Width - imageBox3.Width - 17;
            imageBox3.Top = 18;
            imageBox3.Anchor = (AnchorStyles.Top | AnchorStyles.Right);

            imageBox2.Left = imageBox3.Left - imageBox2.Width - 8;
            imageBox2.Top = 18;
            imageBox2.Anchor = (AnchorStyles.Top | AnchorStyles.Right);

            imageBox1.Left = imageBox2.Left - imageBox1.Width - 8;
            imageBox1.Top = 18;
            imageBox1.Anchor = (AnchorStyles.Top | AnchorStyles.Right);

            panel1.Left = this.DisplayRectangle.Left;
            panel1.Top = this.DisplayRectangle.Height - panel1.Height;
            panel1.Width = this.DisplayRectangle.Width;
            panel1.Anchor = (AnchorStyles.Left | AnchorStyles.Right | AnchorStyles.Bottom);

            if (this.DesignMode)
            {
                imageBox1.Visible = imageBox2.Visible = imageBox3.Visible = false;
                panel1.Visible = false;
            }

            this.ResumeLayout();
        }

        protected override void OnMouseClick(MouseEventArgs e)
        {
            base.OnMouseClick(e);

            bool isLabel = ((e.Location.X >= 0) && (e.Location.X <= this.Width) && (e.Location.Y >= 0) && (e.Location.Y <= titleBarHeight));

            if (e.Button == MouseButtons.Left)
            {
                if (isLabel)
                {
                    // do nothing
                }
                else
                {
                    // do nothing
                }
            }
            else if (e.Button == MouseButtons.Right)
            {
                if (isLabel)
                {
                    if (this.TitleContextMenuStrip != null)
                    {
                        this.TitleContextMenuStrip.Show(this, e.Location);
                    }
                }
                else
                {
                    // do nothing
                }
            }
        }

        protected override void OnMouseDown(MouseEventArgs e)
        {
            base.OnMouseDown(e);

            if (e.Button != MouseButtons.Left)
            {
                return;
            }

            isDragging = true;
            startPosition = e.Location;
        }

        protected override void OnMouseMove(MouseEventArgs e)
        {
            base.OnMouseMove(e);

            if (isDragging)
            {
                int x = (this.Location.X + (e.Location.X - startPosition.X));
                int y = (this.Location.Y + (e.Location.Y - startPosition.Y));

                //this.Location = validateFormLocation(x, y);
                this.Location = new Point(x, y);
            }
        }

        protected override void OnMouseUp(MouseEventArgs e)
        {
            base.OnMouseUp(e);

            isDragging = false;
        }

        protected override void OnPaint(PaintEventArgs e)
        {
            base.OnPaint(e);

            Graphics g = e.Graphics;
            Rectangle area = new Rectangle(this.DisplayRectangle.X, this.DisplayRectangle.Y, (this.DisplayRectangle.Width - borderWidth), (this.DisplayRectangle.Height - borderWidth));

            // border
            g.DrawRectangle(new Pen(borderColour, borderWidth), area);

            area.Inflate((-1 * borderWidth), (-1 * borderWidth));

            g.FillRectangle(new SolidBrush(titleBarColour), area.X, area.Y, (area.Width + area.X), titleBarHeight);
            g.DrawLine(new Pen(titleBorderColour, 1), area.X, (titleBarHeight + 1), (area.Width + area.X), (titleBarHeight + 1));

            if (!DesignMode) g.DrawImageUnscaled(this.AppIcon, 17, 13);

            if (!DesignMode) TextRenderer.DrawText(g, Application.ProductName, new Font(this.Font.FontFamily, 14F), new Point(58, 17), titleColour);

        }

        protected override void OnResize(EventArgs e)
        {
            base.OnResize(e);

            this.Invalidate();
        }

        [Browsable(false), EditorBrowsable(EditorBrowsableState.Never)]
        public override Color BackColor { get => base.BackColor; set => base.BackColor = value; }

        [Browsable(false), EditorBrowsable(EditorBrowsableState.Never)]
        public new FormBorderStyle FormBorderStyle { get => base.FormBorderStyle; set => base.FormBorderStyle = value; }

        [Browsable(false), EditorBrowsable(EditorBrowsableState.Never)]
        public new Padding Padding { get => base.Padding; set => base.Padding = value; }

        [Category("Appearance")]
        public ContextMenuStrip TitleContextMenuStrip { get; set; } = null;

        [Browsable(false)]
        public Image AppIcon { get; set; } = null;

        protected Point DefaultLocation
        {
            get
            {
                Point newPosition = new Point(Cursor.Position.X, Cursor.Position.Y);
                newPosition.X -= (this.Width / 2);
                newPosition.Y -= (this.Height / 2);

                newPosition.X = Math.Max(newPosition.X, Screen.PrimaryScreen.WorkingArea.Left);
                newPosition.Y = Math.Max(newPosition.Y, Screen.PrimaryScreen.WorkingArea.Top);

                return newPosition;
            }
        }

        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
            System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(TForm));
            this.imageBox3 = new RyzStudio.Windows.Forms.TImageBox();
            this.imageBox2 = new RyzStudio.Windows.Forms.TImageBox();
            this.imageBox1 = new RyzStudio.Windows.Forms.TImageBox();
            this.notifyIcon1 = new System.Windows.Forms.NotifyIcon(this.components);
            this.contextMenuStrip1 = new System.Windows.Forms.ContextMenuStrip(this.components);
            this.exitToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
            this.panel1 = new System.Windows.Forms.Panel();
            ((System.ComponentModel.ISupportInitialize)(this.imageBox3)).BeginInit();
            ((System.ComponentModel.ISupportInitialize)(this.imageBox2)).BeginInit();
            ((System.ComponentModel.ISupportInitialize)(this.imageBox1)).BeginInit();
            this.contextMenuStrip1.SuspendLayout();
            this.SuspendLayout();
            //
            // imageBox3
            //
            this.imageBox3.BackColor = System.Drawing.Color.Transparent;
            this.imageBox3.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Center;
            this.imageBox3.ErrorImage = null;
            this.imageBox3.Image = global::AppLauncher.Properties.Resources20.close;
            this.imageBox3.ImageHover = global::AppLauncher.Properties.Resources20.close2;
            this.imageBox3.ImageNormal = global::AppLauncher.Properties.Resources20.close;
            this.imageBox3.ImageSelected = null;
            this.imageBox3.InitialImage = null;
            this.imageBox3.IsSelected = false;
            this.imageBox3.Location = new System.Drawing.Point(169, 12);
            this.imageBox3.Name = "imageBox3";
            this.imageBox3.Size = new System.Drawing.Size(20, 20);
            this.imageBox3.SizeMode = System.Windows.Forms.PictureBoxSizeMode.CenterImage;
            this.imageBox3.TabIndex = 146;
            this.imageBox3.TabStop = false;
            this.imageBox3.MouseClick += new System.Windows.Forms.MouseEventHandler(this.imageBox3_MouseClick);
            //
            // imageBox2
            //
            this.imageBox2.BackColor = System.Drawing.Color.Transparent;
            this.imageBox2.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Center;
            this.imageBox2.ErrorImage = null;
            this.imageBox2.Image = global::AppLauncher.Properties.Resources20.maximise;
            this.imageBox2.ImageHover = global::AppLauncher.Properties.Resources20.maximise;
            this.imageBox2.ImageNormal = global::AppLauncher.Properties.Resources20.maximise;
            this.imageBox2.ImageSelected = global::AppLauncher.Properties.Resources20.maximise2;
            this.imageBox2.InitialImage = null;
            this.imageBox2.IsSelected = false;
            this.imageBox2.Location = new System.Drawing.Point(139, 12);
            this.imageBox2.Name = "imageBox2";
            this.imageBox2.Size = new System.Drawing.Size(20, 20);
            this.imageBox2.SizeMode = System.Windows.Forms.PictureBoxSizeMode.CenterImage;
            this.imageBox2.TabIndex = 147;
            this.imageBox2.TabStop = false;
            this.imageBox2.MouseClick += new System.Windows.Forms.MouseEventHandler(this.imageBox2_MouseClick);
            //
            // imageBox1
            //
            this.imageBox1.BackColor = System.Drawing.Color.Transparent;
            this.imageBox1.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Center;
            this.imageBox1.ErrorImage = null;
            this.imageBox1.Image = global::AppLauncher.Properties.Resources20.minimise;
            this.imageBox1.ImageHover = global::AppLauncher.Properties.Resources20.minimise2;
            this.imageBox1.ImageNormal = global::AppLauncher.Properties.Resources20.minimise;
            this.imageBox1.ImageSelected = null;
            this.imageBox1.InitialImage = null;
            this.imageBox1.IsSelected = false;
            this.imageBox1.Location = new System.Drawing.Point(109, 12);
            this.imageBox1.Name = "imageBox1";
            this.imageBox1.Size = new System.Drawing.Size(20, 20);
            this.imageBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.CenterImage;
            this.imageBox1.TabIndex = 148;
            this.imageBox1.TabStop = false;
            this.imageBox1.MouseClick += new System.Windows.Forms.MouseEventHandler(this.imageBox1_MouseClick);
            //
            // notifyIcon1
            //
            this.notifyIcon1.ContextMenuStrip = this.contextMenuStrip1;
            this.notifyIcon1.Icon = ((System.Drawing.Icon)(resources.GetObject("notifyIcon1.Icon")));
            this.notifyIcon1.Visible = true;
            this.notifyIcon1.MouseClick += new System.Windows.Forms.MouseEventHandler(this.notifyIcon1_MouseClick);
            this.notifyIcon1.MouseDoubleClick += new System.Windows.Forms.MouseEventHandler(this.notifyIcon1_MouseClick);
            //
            // contextMenuStrip1
            //
            this.contextMenuStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.exitToolStripMenuItem});
            this.contextMenuStrip1.Name = "contextMenuStrip1";
            this.contextMenuStrip1.Size = new System.Drawing.Size(94, 26);
            //
            // exitToolStripMenuItem
            //
            this.exitToolStripMenuItem.Name = "exitToolStripMenuItem";
            this.exitToolStripMenuItem.Size = new System.Drawing.Size(93, 22);
            this.exitToolStripMenuItem.Text = "E&xit";
            this.exitToolStripMenuItem.Click += new System.EventHandler(this.exitToolStripMenuItem_Click);
            //
            // panel1
            //
            this.panel1.BackColor = System.Drawing.Color.Transparent;
            this.panel1.Cursor = System.Windows.Forms.Cursors.SizeNS;
            this.panel1.Location = new System.Drawing.Point(109, 114);
            this.panel1.Margin = new System.Windows.Forms.Padding(0);
            this.panel1.Name = "panel1";
            this.panel1.Size = new System.Drawing.Size(200, 2);
            this.panel1.TabIndex = 149;
            this.panel1.MouseDown += new System.Windows.Forms.MouseEventHandler(this.panel1_MouseDown);
            this.panel1.MouseMove += new System.Windows.Forms.MouseEventHandler(this.panel1_MouseMove);
            this.panel1.MouseUp += new System.Windows.Forms.MouseEventHandler(this.panel1_MouseUp);
            //
            // AForm
            //
            this.ClientSize = new System.Drawing.Size(421, 321);
            this.Controls.Add(this.panel1);
            this.Controls.Add(this.imageBox1);
            this.Controls.Add(this.imageBox2);
            this.Controls.Add(this.imageBox3);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
            this.Name = "AForm";
            ((System.ComponentModel.ISupportInitialize)(this.imageBox3)).EndInit();
            ((System.ComponentModel.ISupportInitialize)(this.imageBox2)).EndInit();
            ((System.ComponentModel.ISupportInitialize)(this.imageBox1)).EndInit();
            this.contextMenuStrip1.ResumeLayout(false);
            this.ResumeLayout(false);

        }

        private void imageBox1_MouseClick(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                //this.WindowState = FormWindowState.Minimized;
                this.Visible = false;
                //notifyIcon1.Visible = true;
            }
        }

        private void imageBox2_MouseClick(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                //this.WindowState = ((this.WindowState == FormWindowState.Maximized) ? FormWindowState.Normal : FormWindowState.Maximized);

                //imageBox2.IsSelected = (this.WindowState == FormWindowState.Maximized);
            }
            else if (e.Button == MouseButtons.Right)
            {
                this.TopMost = !this.TopMost;

                if (this.TopMost)
                {
                    imageBox2.Image = imageBox2.ImageNormal = Properties.Resources20.maximise3;
                }
                else
                {
                    imageBox2.Image = imageBox2.ImageNormal = Properties.Resources20.maximise;
                }
            }
        }

        protected virtual void imageBox3_MouseClick(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                this.Close();
            }
        }

        private void panel1_MouseDown(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                isDragging = true;
                startPosition = e.Location;
            }
        }

        private void panel1_MouseUp(object sender, MouseEventArgs e)
        {
            isDragging = false;
        }

        private void panel1_MouseMove(object sender, MouseEventArgs e)
        {
            if (isDragging)
            {
                this.Size = new Size(this.Width, e.Y - startPosition.Y + this.Height);
            }
        }

        private void exitToolStripMenuItem_Click(object sender, EventArgs e) => this.Close();

        private void notifyIcon1_MouseClick(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                this.Visible = !this.Visible;
            }

            //notifyIcon1.Visible = !this.Visible;
        }

    }
}