using KssSmaPlaLib.Ini;
using KssSmaPlaLib.Input.Gamen;
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 KssSmaPlaLib.Alert.Gamen
{
    public class AlertForm : Form
    {
        private const string INI_KEY_BORDER = "Border";
        private const string INI_KEY_TITLE = "Title";
        private const string INI_KEY_ATTRIBUTE = "Attribute";

        private readonly Timer _autoClose = new Timer();
        private readonly Label _title = new Label();
        private readonly Label _detail = new Label();
        private readonly Timer _pulse = new Timer();
        private ContextMenuStrip PopupMenu;
        private IContainer components;
        private ToolStripMenuItem BorderMenu;
        private ToolStripMenuItem TitleMenu;
        private ToolStripMenuItem ShozokuMenu;
        private ToolStripMenuItem KyoretsuModeMenu;
        private int _pulseStep = 0;

        /// <summary>
        /// コンストラクタ
        /// </summary>
        /// <param name="errorLine">ログのエラー行</param>
        /// <param name="dateTime">日時</param>
        /// <param name="kyouretsu">強烈画面</param>
        /// <param name="autoCloseSec">自動で閉じる秒数</param>
        public AlertForm(
            string errorLine,
            DateTime dateTime,
            bool kyouretsu = true,
            int autoCloseSec = 0)
        {
            InitializeComponent();

            if (kyouretsu || IniHelper.ReadValue(null, this.Name, "KyoretsuMode") == "1")
            {
                // ****** ここ本番強烈処理 ******
                IniHelper.WriteValue(null, this.Name, INI_KEY_BORDER, "1");
                if (string.IsNullOrEmpty(IniHelper.ReadValue(null, this.Name, INI_KEY_BORDER)))
                {
                    FormBorderStyle = FormBorderStyle.None;
                }
                else
                {
                    FormBorderStyle = FormBorderStyle.Sizable;
                }
                TopMost = true;
                //WindowState = FormWindowState.Normal;
                WindowState = FormWindowState.Maximized;
                //Bounds = GetAllScreensBounds(); // 全画面（マルチモニタ）
                // ****** ここ本番強烈処理 ******
            }

            BackColor = Color.FromArgb(220, 0, 0); // 深紅
            Cursor = Cursors.Hand;
            MouseDown += All_MouseDown;

            // タイトル
            _title.Text = IniHelper.ReadValue(null, this.Name, INI_KEY_TITLE, "（タイトル未設定）");
            var attribute = IniHelper.ReadValue(null, this.Name, INI_KEY_ATTRIBUTE, "のぼぼ工房");
            if(!string.IsNullOrEmpty(attribute))
            {
                _title.Text += " - " + attribute;
            }
            _title.Font = new Font("Yu Gothic UI", 72, FontStyle.Bold);
            _title.ForeColor = Color.White;
            _title.AutoSize = true; //false;
            _title.MaximumSize = new Size(Screen.PrimaryScreen.Bounds.Width, 0); // 左記Widthを超えると自動改行
            _title.TextAlign = ContentAlignment.MiddleCenter;
            _title.Dock = DockStyle.Top;
            // 高さはFormLoadにて変更する（フォームのHeightがまだデザイン時のものだから）
            //_title.Height = Height / 3;
            _title.MouseDown += All_MouseDown;

            // 詳細
            _detail.Text = $"[{dateTime:yyyy/MM/dd HH:mm:ss.fff}]\r\n{errorLine}";
            _detail.Font = new Font("Consolas", 28, FontStyle.Regular);
            _detail.ForeColor = Color.White;
            _detail.AutoSize = false;
            _detail.TextAlign = ContentAlignment.MiddleCenter;
            _detail.Dock = DockStyle.Fill;
            _detail.MouseDown += All_MouseDown;

            Controls.Add(_detail);
            Controls.Add(_title);

            // フェードイン風（パルスで脈動）
            _pulse.Interval = 60;
            _pulse.Tick += (_, __) =>
            {
                _pulseStep++;
                //int alpha = 200 + (int)(55 * Math.Sin(_pulseStep / 3.0));

                //BackColor = Color.FromArgb(Math.Clamp(alpha, 180, 255), 120, 0, 0); // ほんのり血の脈動（控えめ）
                // 180〜255にクランプ
                //int a = Math.Min(255, Math.Max(180, alpha));
                //BackColor = Color.FromArgb(a, 120, 0, 0); // ほんのり血の脈動（控えめ）
                int r = Math.Min(255, Math.Max(120, 120 + (int)(60 * Math.Sin(_pulseStep / 3.0))));
                BackColor = Color.FromArgb(255, r, 0, 0);

                //_title.ForeColor = (alpha % 2 == 0) ? Color.White : Color.GhostWhite;
                _title.ForeColor = (r % 2 == 0) ? Color.White : Color.GhostWhite;
                Invalidate();
            };
            _pulse.Start();

            // 自動クローズ（10秒）
            if (autoCloseSec != 0)
            {
                _autoClose.Interval = autoCloseSec * 1000;
                _autoClose.Tick += (_, __) => Close();
                _autoClose.Start();
            }

            KeyPreview = true;
            MouseDown += All_MouseDown;
            Shown += AlertForm_Shown;

            // 前面に確実に
            Activate();
            BringToFront();
            Focus();
        }

        private void AlertForm_Shown(object sender, EventArgs e)
        {
            // タスクバー点滅（アクティブになったらすぐ消えるが、ならなければずっと点滅）
            WindowFlasherUxer.Flash(this.Handle);
        }

        /// <summary>
        /// フォームロード時
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void AlertForm_Load(object sender, EventArgs e)
        {
            // 高さはFormLoadにて変更する（コンストラクタではフォームのHeightがまだデザイン時のものだから）
            _title.Height = Height / 3;
        }

        // マルチスクリーンの時全てを足したサイズになる！
        private Rectangle GetAllScreensBounds()
        {
            int minX = int.MaxValue, minY = int.MaxValue, maxX = int.MinValue, maxY = int.MinValue;
            foreach (var s in Screen.AllScreens)
            {
                var b = s.Bounds;
                minX = Math.Min(minX, b.Left);
                minY = Math.Min(minY, b.Top);
                maxX = Math.Max(maxX, b.Right);
                maxY = Math.Max(maxY, b.Bottom);
            }
            return new Rectangle(minX, minY, maxX - minX, maxY - minY);
        }

        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
            this.PopupMenu = new System.Windows.Forms.ContextMenuStrip(this.components);
            this.BorderMenu = new System.Windows.Forms.ToolStripMenuItem();
            this.TitleMenu = new System.Windows.Forms.ToolStripMenuItem();
            this.ShozokuMenu = new System.Windows.Forms.ToolStripMenuItem();
            this.KyoretsuModeMenu = new System.Windows.Forms.ToolStripMenuItem();
            this.PopupMenu.SuspendLayout();
            this.SuspendLayout();
            // 
            // PopupMenu
            // 
            this.PopupMenu.Font = new System.Drawing.Font("メイリオ", 11F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(128)));
            this.PopupMenu.ImageScalingSize = new System.Drawing.Size(24, 24);
            this.PopupMenu.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.BorderMenu,
            this.TitleMenu,
            this.ShozokuMenu,
            this.KyoretsuModeMenu});
            this.PopupMenu.Name = "PopupMenu";
            this.PopupMenu.Size = new System.Drawing.Size(241, 197);
            this.PopupMenu.Opening += new System.ComponentModel.CancelEventHandler(this.PopupMenu_Opening);
            // 
            // BorderMenu
            // 
            this.BorderMenu.Name = "BorderMenu";
            this.BorderMenu.Size = new System.Drawing.Size(240, 40);
            this.BorderMenu.Text = "ボーダー...";
            this.BorderMenu.Click += new System.EventHandler(this.BorderMenu_Click);
            // 
            // TitleMenu
            // 
            this.TitleMenu.Name = "TitleMenu";
            this.TitleMenu.Size = new System.Drawing.Size(240, 40);
            this.TitleMenu.Text = "タイトル...";
            this.TitleMenu.Click += new System.EventHandler(this.TitleMenu_Click);
            // 
            // ShozokuMenu
            // 
            this.ShozokuMenu.Name = "ShozokuMenu";
            this.ShozokuMenu.Size = new System.Drawing.Size(240, 40);
            this.ShozokuMenu.Text = "所属...";
            this.ShozokuMenu.Click += new System.EventHandler(this.ShozokuMenu_Click);
            // 
            // KyoretsuModeMenu
            // 
            this.KyoretsuModeMenu.Name = "KyoretsuModeMenu";
            this.KyoretsuModeMenu.Size = new System.Drawing.Size(240, 40);
            this.KyoretsuModeMenu.Text = "強烈モード？";
            this.KyoretsuModeMenu.Click += new System.EventHandler(this.KyoretsuModeMenu_Click);
            // 
            // AlertForm
            // 
            this.ClientSize = new System.Drawing.Size(278, 244);
            this.ContextMenuStrip = this.PopupMenu;
            this.Name = "AlertForm";
            this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.AlertForm_FormClosing);
            this.Load += new System.EventHandler(this.AlertForm_Load);
            this.KeyDown += new System.Windows.Forms.KeyEventHandler(this.AlertForm_KeyDown);
            this.PopupMenu.ResumeLayout(false);
            this.ResumeLayout(false);

        }

        /// <summary>
        /// ボーダーメニュークリック時
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void BorderMenu_Click(object sender, EventArgs e)
        {
            using (var frm = new TextInputForm(
                IniHelper.ReadValue(null, this.Name, INI_KEY_BORDER)))
            {
                if (frm.ShowDialog(this) == DialogResult.Cancel) return;
                IniHelper.WriteValue(null, this.Name, INI_KEY_BORDER, frm.EditedText);
            }
        }

        private void All_MouseDown(object sender, MouseEventArgs e)
        {
            if (e.Button != MouseButtons.Left) return;

            this.Close();
        }

        private void AlertForm_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Escape)
            {
                Close();
            }
        }

        /// <summary>
        /// タイトルメニュークリック時
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void TitleMenu_Click(object sender, EventArgs e)
        {
            using (var frm = new TextInputForm(
                IniHelper.ReadValue(null, this.Name, INI_KEY_TITLE)))
            {
                if (frm.ShowDialog(this) == DialogResult.Cancel) return;
                IniHelper.WriteValue(null, this.Name, INI_KEY_TITLE, frm.EditedText);
            }
            _title.Text = IniHelper.ReadValue(null, this.Name, INI_KEY_TITLE, "重大エラー検知");
        }

        /// <summary>
        /// フォーム閉じるとき
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void AlertForm_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (
                MessageBox.Show(
                    this, "アラート画面を閉じますか？",
                    "確認",
                    MessageBoxButtons.YesNo,
                    MessageBoxIcon.Question,
                    MessageBoxDefaultButton.Button2) == DialogResult.No)
            {
                // Noのとき閉じない
                e.Cancel = true;
                return;
            }
        }

        /// <summary>
        /// 所属メニュークリック時
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void ShozokuMenu_Click(object sender, EventArgs e)
        {
            using (var frm = new TextInputForm(
                IniHelper.ReadValue(null, this.Name, INI_KEY_ATTRIBUTE)))
            {
                if (frm.ShowDialog(this) == DialogResult.Cancel) return;
                IniHelper.WriteValue(null, this.Name, INI_KEY_ATTRIBUTE, frm.EditedText);
            }
        }

        /// <summary>
        /// 強烈モードメニュークリック時
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void KyoretsuModeMenu_Click(object sender, EventArgs e)
        {
            IniHelper.WriteValue(null, this.Name, "KyoretsuMode", KyoretsuModeMenu.Checked ? "0" : "1");
        }

        /// <summary>
        /// ポップアップメニュー開くとき
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void PopupMenu_Opening(object sender, CancelEventArgs e)
        {
            KyoretsuModeMenu.Checked = IniHelper.ReadValue(null, this.Name, "KyoretsuMode") == "1";
        }

        //protected override CreateParams CreateParams
        //{
        //    get
        //    {
        //        var cp = base.CreateParams;
        //        cp.ExStyle |= 0x00000080; // WS_EX_TOPMOSTを強調（常に最前面）
        //        return cp;
        //    }
        //}
    }
}