using FWindSoft.WindowsApi;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Interop;
using SysWindow = System.Windows.Window;
namespace FWindSoft.Wpf
{
    /*
     * 一点，窗体自然关闭时取消按钮
     * 如果有取消按钮，则窗体可有标题栏关闭，否则不能
     */
    public static class MessageTip
    {
        private const string DefaultCaption = "提示";
        public static MessageBoxResult Show(string messageBoxText, string caption, MessageBoxButton button)
        {
            return (MessageBoxResult)Show(null, messageBoxText, caption, CreateButtons(button));
        }

        public static MessageBoxResult Show(string messageBoxText, string caption)
        {
            return (MessageBoxResult)Show(null, messageBoxText, caption, CreateButtons(MessageBoxButton.OK));
        }
        public static MessageBoxResult Show(string messageBoxText)
        {
            return (MessageBoxResult)Show(null, messageBoxText, DefaultCaption, CreateButtons(MessageBoxButton.OK));
        }

        public static MessageBoxResult Show(SysWindow owner, string messageBoxText, string caption, MessageBoxButton button)
        {
            return (MessageBoxResult)Show(owner, messageBoxText, caption, CreateButtons(button));
        }

        public static MessageBoxResult Show(SysWindow owner, string messageBoxText, string caption)
        { return (MessageBoxResult)Show(owner, messageBoxText, caption, CreateButtons(MessageBoxButton.OK));
        }
        public static MessageBoxResult Show(SysWindow owner, string messageBoxText)
        {
            string caption = DefaultCaption;
            if (owner != null && !string.IsNullOrEmpty(owner.Title))
                caption = owner.Title;
            return (MessageBoxResult)Show(owner, messageBoxText, caption, CreateButtons(MessageBoxButton.OK));
        }
        #region 核心显示方法

        /// <summary>
        /// 
        /// </summary>
        /// <param name="owner"></param>
        /// <param name="messageBoxText"></param>
        /// <param name="caption"></param>
        /// <param name="buttonItems">如果flag,有2的话，则启用关闭按钮</param>
        /// <returns></returns>
        public static int Show(SysWindow owner, string messageBoxText, string caption, List<TipButtonItem> buttonItems)
        {
            if (buttonItems == null || !buttonItems.Any())
                return -1;
            WinMessageTip tip = new WinMessageTip(buttonItems);
          
            tip.Title = caption;
            if (owner != null)
            {
                  tip.Owner = owner;
            }
            else
            {
                //设置主线程窗体为父窗体
                var handle = Process.GetCurrentProcess().MainWindowHandle;
                if (handle != IntPtr.Zero)
                {
                    var winHelp = new WindowInteropHelper(tip);
                    winHelp.EnsureHandle();
                    winHelp.Owner = handle;
                    //WinAPi.SetParent(winHelp.EnsureHandle(), handle);
                }
            }

            tip.Message = messageBoxText ?? string.Empty;
            if (buttonItems.Any(i => i.Flag == 2))
            {
                tip.DisableUseClose = false;
            }

            var result = tip.ShowDialog();            
            if (result != null && result.Value == true)
            {
                return tip.Flag;
            }
            return 2;
        }
        #endregion


        private static List<TipButtonItem> CreateButtons(MessageBoxButton button)
        {
            List<TipButtonItem> items = new List<TipButtonItem>();
            switch (button)
            {
                case MessageBoxButton.OK:
                    items.Add(new TipButtonItem() { Content = "确定", Flag = 1,IsDefault=true });
                    break;
                case MessageBoxButton.OKCancel:
                    items.Add(new TipButtonItem() { Content = "确定", Flag = 1, IsDefault = true });
                    items.Add(new TipButtonItem() { Content = "取消", Flag = 2 , IsCancel = true });
                    break;
                case MessageBoxButton.YesNoCancel:
                    items.Add(new TipButtonItem() { Content = "是", Flag = 6, IsDefault = true });
                    items.Add(new TipButtonItem() { Content = "否", Flag = 7 });
                    items.Add(new TipButtonItem() { Content = "取消", Flag = 2, IsCancel = true });
                    break;
                case MessageBoxButton.YesNo:
                    items.Add(new TipButtonItem() { Content = "是", Flag = 6, IsDefault = true });
                    items.Add(new TipButtonItem() { Content = "否", Flag = 7, IsCancel = true });
                    break;
                default:
                    break;
            }


            return items;
        }
    }


}