using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Windows;
using System.Windows.Forms;
using System.Windows.Input;
using System.Xml;
using Aitex.Core.RT.Log;
using Aitex.Core.RT.SCCore;
using Aitex.Core.UI.MVVM;
using Aitex.Core.Utilities;
using Aitex.Sorter.Common;
using MECF.Framework.Common.DataCenter;
using MECF.Framework.Common.OperationCenter;
 using MessageBox = System.Windows.MessageBox;

namespace Aitex.Sorter.UI.ViewModel
{
    public class SystemConfigViewModel : UIViewModelBase
    {
        [IgnorePropertyChange]
        public SCValue ConfigFeedback
        {
            get;
            set;
        }

        [IgnorePropertyChange]
        public SCValue ConfigSetPoint
        {
            get;
            set;
        }

        [IgnorePropertyChange]
        public ICommand SetConfigCommand
        {
            get;
            private set;
        }

        [IgnorePropertyChange]
        public ICommand SetConfig2Command
        {
            get;
            private set;
        }

        [IgnorePropertyChange]
        public ICommand SaveAsConfigCommand
        {
            get;
            private set;
        }

        [IgnorePropertyChange]
        public ICommand LoadConfigCommand
        {
            get;
            private set;
        }

        [IgnorePropertyChange]
        public ICommand SetAllConfigCommand
        {
            get;
            private set;
        }

        public SystemConfigViewModel()
            : base("SystemConfigViewModel")
        {
            SetConfigCommand = new DelegateCommand<object>(SetConfig);
            SetConfig2Command = new DelegateCommand<object>(SetConfig2);
            SaveAsConfigCommand = new DelegateCommand<object>(SaveAsConfig);
            LoadConfigCommand = new DelegateCommand<object>(LoadConfig);
            SetAllConfigCommand = new DelegateCommand<object>(SetAllConfig);

            ConfigFeedback = new SCValue();
            ConfigSetPoint = new SCValue();

            ConfigFeedback.RetrieveAll();
            ConfigSetPoint.RetrieveAll();
        }

        void SetConfig(object param)
        {
            if (!PerformInvokeFunctionCheck(new string[] { "Config", "Set" })) return;
            object[] sc = (object[])param ;

         InvokeClient.Instance.Service.DoOperation("System.SetConfig", sc[0].ToString(), sc[1].ToString());
  

            UpdateConfig();
        }

        void SetConfig2(object param)
        {
            string stringParam = param.ToString();

            string[] values = stringParam.Split(';');
            foreach (var value in values)
            {
                if (string.IsNullOrEmpty(value))
                    continue;

                string[] props = value.Split('.');
                if (props.Length != 3)
                {
                    LOG.Error("Error SetConfig parameter" + param);
                    continue;
                }

                string scName = props[1] + "_" + props[2];
                object scValue = null;

                PropertyInfo[] property = typeof(SCValue).GetProperties();

                foreach (PropertyInfo fiGroup in property)
                {
                    if (fiGroup.Name == props[1])
                    {
                        object objGroup = fiGroup.GetValue(ConfigSetPoint, null);
                        foreach (PropertyInfo fiItem in objGroup.GetType().GetProperties())
                        {
                            if (fiItem.Name == props[2])
                            {
                                scValue = fiItem.GetValue(objGroup, null);
                                InvokeClient.Instance.Service.DoOperation(OperationName.SetConfig , scName, scValue);
                                break;
                            }
                        }
                        break;
                    }
                }
            }

            UpdateConfig();
        }



        private void SaveAsConfig(object param)
        {
            SaveFileDialog sfd = new SaveFileDialog();
            sfd.DefaultExt = ".cfg";
            sfd.Filter = ".cfg|*.*";
            sfd.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory);
            sfd.FileName = string.Format("process_config_{0}.cfg", DateTime.Now.ToString("yyyyMMdd_HHmmssfff"));
            if (sfd.ShowDialog() != DialogResult.OK)
                return;

            XmlDocument xml = new XmlDocument();
            xml.LoadXml(@"<?xml version='1.0' encoding='utf-8'?><Aitex><ProcessConfigs></ProcessConfigs></Aitex>");

            Dictionary<string, object> items = ConfigFeedback.GetValue();
            foreach (var item in items)
            {
                CreateNode(xml, item.Key, item.Value.ToString());
            }

            try
            {
                xml.Save(sfd.FileName);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Save Error", MessageBoxButton.OK, MessageBoxImage.Warning);
            }
        }

        void CreateNode(XmlDocument xmlDoc, string name, string value)
        {
            XmlNode node = xmlDoc.CreateElement("ProcessConfig");
            XmlAttribute attrName = xmlDoc.CreateAttribute("Name");
            attrName.Value = name;
            node.Attributes.Append(attrName);

            XmlAttribute attrValue = xmlDoc.CreateAttribute("Value");
            attrValue.Value = value;
            node.Attributes.Append(attrValue);

            xmlDoc.SelectSingleNode("Aitex/ProcessConfigs").AppendChild(node);
        }

        private void LoadConfig(object param)
        {
            OpenFileDialog ofd = new OpenFileDialog();
            ofd.DefaultExt = ".cfg";
            ofd.Filter = ".cfg|*.*";
            ofd.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory);
            if (ofd.ShowDialog() != DialogResult.OK)
                return;

            XmlDocument xml = new XmlDocument();
            try
            {
                xml.Load(ofd.FileName);

                Dictionary<string, object> items = ConfigSetPoint.GetValue();
                foreach (var item in items)
                {
                    ConfigSetPoint.Update(item.Key, GetNodeValue(xml, item.Key, item.Value.ToString()));
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Open Failed", MessageBoxButton.OK, MessageBoxImage.Warning);
                return;
            }

            InvokeAllPropertyChanged();
        }

        string GetNodeValue(XmlDocument xmlDoc, string configItem, string defaultValue)
        {
            try
            {
                XmlNode node = xmlDoc.SelectSingleNode(string.Format("Aitex/ProcessConfigs/ProcessConfig[@Name='{0}']", configItem));
                if (node != null)
                {
                    return node.Attributes["Value"].InnerText;

                }
            }
            catch (Exception ex)
            {
                LOG.Write(ex);
            }
            return defaultValue;
        }

        private void SetAllConfig(object param)
        {
            Dictionary<string, object> items = ConfigSetPoint.GetValue();
            foreach (var item in items)
            {
                InvokeClient.Instance.Service.DoOperation(OperationName.SetConfig.ToString(), item.Key, item.Value.ToString());
            }


            UpdateConfig();
        }

        public void UpdateConfig()
        {
            ConfigFeedback.Update(QueryDataClient.Instance.Service.PollConfig(ConfigFeedback.GetKeys()));
            ConfigSetPoint.Update(QueryDataClient.Instance.Service.PollConfig(ConfigSetPoint.GetKeys()));

            InvokeAllPropertyChanged();
        }
    }
}