using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using MECF.Framework.Common.OperationCenter;
using Prism.Commands;
using Prism.Mvvm;
using Venus_MainPages.Unity;
//using  Venus_MainPages.Unity.SystemConfig;

namespace Venus_MainPages.ViewModels
{
    public class SystemConfigViewModel:BindableBase
    {
        #region 私有字段
        private List<ConfigNode> _ConfigNodes = new List<ConfigNode>();
        private List<ConfigItem> _configItems = null;
        string _CurrentNodeName = string.Empty;

        #endregion

        #region 属性
        public List<ConfigNode> ConfigNodes
        {
            get { return _ConfigNodes; }
            set { _ConfigNodes = value; RaisePropertyChanged("ConfigNodes"); }
        }
        public List<ConfigItem> ConfigItems
        {
            get { return _configItems; }
            set { _configItems = value; RaisePropertyChanged("ConfigItems"); }
        }

        #region 命令

        private DelegateCommand<object> _TreeViewSelectedItemChangedCmd;
        public DelegateCommand<object> TreeViewSelectedItemChangedCmd =>
            _TreeViewSelectedItemChangedCmd ?? (_TreeViewSelectedItemChangedCmd = new DelegateCommand<object>(TreeViewSelectedItemChanged));
        #endregion



        #endregion

        #region 命令
        private DelegateCommand<object> _SetValueCommand;
        public DelegateCommand<object> SetValueCommand =>
            _SetValueCommand ?? (_SetValueCommand = new DelegateCommand<object>(SetValue));
          
        #endregion
        public SystemConfigViewModel()
        {
            ConfigNodes = SystemConfigProvider.Instance.GetConfigTree().SubNodes;
        }

        //protected override void OnInitialize()
        //{
        //    base.OnInitialize();

        //    ConfigNodes = SystemConfigProvider.Instance.GetConfigTree().SubNodes;
        //}

        private void TreeViewSelectedItemChanged(object node)
        {
           var   node2 = (ConfigNode)node;
            _CurrentNodeName = string.IsNullOrEmpty(node2.Path) ? node2.Name : $"{node2.Path}.{node2.Name}";
            ConfigItems = node2.Items;

            GetDataOfConfigItems();
        }

        private void GetDataOfConfigItems()
        {
            if (ConfigItems == null)
                return;

            for (int i = 0; i < ConfigItems.Count; i++)
            {
                string key = String.Format("{0}{1}{2}", _CurrentNodeName, ".", ConfigItems[i].Name);
                ConfigItems[i].CurrentValue = SystemConfigProvider.Instance.GetValueByName(key);

                if (ConfigItems[i].Type == DataType.Bool)
                {
                    bool value;
                    if (bool.TryParse(ConfigItems[i].CurrentValue, out value))
                        ConfigItems[i].BoolValue = value;
                }
                else
                    ConfigItems[i].StringValue = ConfigItems[i].CurrentValue;
            }
        }

        private void SetValue(Object myitem)
        {
            //key ：System.IsSimulatorMode 
            //value: true or false 都是字符串

            //input check
            var item = (ConfigItem)myitem;
            string value;
            if (item.Type == DataType.Bool)
            {
                value = item.BoolValue.ToString().ToLower();
            }
            else
            {
                if (item.TextSaved)
                    return;

                if (item.Type == DataType.Int)
                {
                    int iValue;
                    if (int.TryParse(item.StringValue, out iValue))
                    {
                        if (!double.IsNaN(item.Max) && !double.IsNaN(item.Min))
                        {
                            if (iValue > item.Max || iValue < item.Min)
                            {
                                //DialogBox.ShowWarning(string.Format("The value should be between {0}  and {1}.", ((int)item.Min).ToString(), ((int)item.Max).ToString()));
                                return;
                            }
                        }
                    }
                    else
                    {
                        //DialogBox.ShowWarning("Please input valid data.");
                        return;
                    }
                    value = item.StringValue;
                }
                else if (item.Type == DataType.Double)
                {
                    double fValue;
                    if (double.TryParse(item.StringValue, out fValue))
                    {
                        if (!double.IsNaN(item.Max) && !double.IsNaN(item.Min))
                        {
                            if (fValue > item.Max || fValue < item.Min)
                            {
                                //DialogBox.ShowWarning(string.Format("The value should be between {0}  and {1}.", item.Min.ToString(), item.Max.ToString()));
                                return;
                            }
                        }
                    }
                    else
                    {
                        //DialogBox.ShowWarning("Please input valid data.");
                        return;
                    }
                    value = item.StringValue;
                }
                else
                    value = item.StringValue;
            }

            string key = String.Format("{0}{1}{2}", _CurrentNodeName, ".", item.Name);
            InvokeClient.Instance.Service.DoOperation("System.SetConfig", key, value);

            item.TextSaved = true;

            Reload();
        }

        public void Reload()
        {
            GetDataOfConfigItems();
        }

        public void SaveAll()
        {
            if (ConfigItems == null)
                return;

            ConfigItems.ForEach(item => SetValue(item));
        }
        
    }
}