using Bro.Common.Helper;
using Bro.Common.Interface;
using System;
using System.Reflection;
using System.Threading;
using System.Windows.Forms;
using WeifenLuo.WinFormsUI.Docking;

namespace Bro.UI.Model.Winform
{
    public partial class MenuFrmBase : DockContent, IMenuNode, IProcessObserver, ILogOutput
    {
        public Action<string, IProcess> OnUploadProcess { get; set; }
        public event Action<LogMsg> OnLogMsgOutput;
        public string Id { get; set; } = Guid.NewGuid().ToString();

        private IProcess process = null;

        public IProcess Process
        {
            get => process;
            set
            {
                //if (process != value)
                {
                    process = value;

                    _constructionDoneHandle.Wait();
                    OnProcessUpdated();
                }
            }
        }

        ManualResetEventSlim _constructionDoneHandle = new ManualResetEventSlim(false);
        public MenuFrmBase()
        {
            InitializeComponent();

            var dockAttr = GetType().GetCustomAttribute<DockOptionAttribute>();
            if (dockAttr != null)
            {
                FormClosing += MenuFrmBase_FormClosing;
            }

            _constructionDoneHandle.Set();
        }

        protected virtual void MenuFrmBase_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (e.CloseReason != CloseReason.MdiFormClosing)
            {
                e.Cancel = true;

                if (DockHandler.DockPanel != null)
                    Hide();
            }
        }

        #region IProcessObserver
        public virtual void OnProcessUpdated() { }
        public virtual void DownloadProcess(IProcess process)
        {
            Process = process;
        }
        #endregion

        #region ILogOutput
        public virtual void LogDisplay(LogMsg msg)
        {
        }

        protected virtual void LogAsync(LogMsg msg)
        {
            OnLogMsgOutput?.Invoke(msg);
        }

        protected virtual void LogAsync(DateTime dt, string prefix, string msg = "")
        {
            OnLogMsgOutput?.Invoke(new LogMsg(dt, prefix, msg));
        }
        #endregion

        #region Login
        protected bool IsLogin { get; set; }

        public virtual void SetLoginStatus(bool isLogin)
        {
            IsLogin = isLogin;
        }
        #endregion

        protected override string GetPersistString()
        {
            var attr = this.GetType().GetCustomAttribute<MenuNodeAttribute>();

            if (attr == null)
            {
                return base.GetPersistString();
            }

            return $"MenuFrm,{attr.MenuCode},{attr.MenuName}";
        }
    }
}