using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Kingo.Plugin.BGResultManager.Model
{
    public class XZQTreeNode : INotifyPropertyChanged
    {
        /// <summary>
        /// 
        /// </summary>
        ///<remarks>create 王欢  2018-09-29</remarks>
        public event PropertyChangedEventHandler PropertyChanged;
        private void NotifyPropertyChanged(String info)
        {
            if (PropertyChanged != null)
            {
                PropertyChanged(this, new PropertyChangedEventArgs(info));
            }
        }

        /// <summary>
        /// IsChecked
        /// </summary>
        ///<remarks>Update 王欢  2018-09-28</remarks>
        private bool _isChecked;
        public bool IsChecked
        {
            set
            {
                _isChecked = value;
                if (PropertyChanged != null) PropertyChanged.Invoke(this, new PropertyChangedEventArgs("IsChecked"));
                SetIsCheckedByParent(value);
                if (Parent != null) Parent.SetIsCheckedByChild(value);
            }
            get { return this._isChecked; }
        }


        public string XZQMC { get; set; }
        public string XZQDM { get; set; }


        public decimal XH
        {
            get
            {
                decimal xh;
                decimal.TryParse(XZQDM, out xh);
                return xh;
            }
        }


        public string ShowName
        {
            get
            {
                if (string.IsNullOrEmpty(XZQMC))
                {
                    XZQMC = XZQDM;
                }
                return string.Format("{0}[{1}]", XZQMC, XZQDM);
            }
        }


        public object Tag { get; set; }

        public string GroupName { get; set; }

        public bool IsExpanded { get; set; }
        public XZQTreeNode Parent { get; set; }
        /// <summary>
        /// 子节点，默认null
        /// </summary>
        ///<remarks>Update 王欢  2018-09-29</remarks>
        private List<XZQTreeNode> _nodes = new List<XZQTreeNode>();
        public IList<XZQTreeNode> Nodes { get { return _nodes; } set { _nodes = (List<XZQTreeNode>)value; } }

        #region   王欢   2018-09-28

        /// <summary>
        /// 子节点的isChecked改变了, 通知父节点是否要跟着改变 isChecked
        /// </summary>
        /// <param name="value"></param>
        public virtual void SetIsCheckedByChild(bool value)
        {
            if (this._isChecked == value)
            {
                return;
            }

            bool isAllChildrenChecked = this.Nodes.All(c => c.IsChecked == true);
            this._isChecked = isAllChildrenChecked;
            if (PropertyChanged != null) PropertyChanged.Invoke(this, new PropertyChangedEventArgs("IsChecked"));
            if (Parent != null) Parent.SetIsCheckedByChild(value);
        }

        /// <summary>
        /// 父节点isChecked改变了, 所有子节点跟着改变
        /// </summary>
        /// <param name="value"></param>
        public virtual void SetIsCheckedByParent(bool value)
        {
            this._isChecked = value;
            if (PropertyChanged != null) PropertyChanged.Invoke(this, new PropertyChangedEventArgs("IsChecked"));
            if (Nodes == null)
            {
                return;
            }
            foreach (var child in Nodes)
            {
                child.SetIsCheckedByParent(value);
            }
        }
        #endregion


    }
}