using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using System.Xml;

using Aitex.UI.Charting.ViewModel;
using System.Reflection;
using System.IO;
using DataAnalysisControl.Core;

namespace Aitex.UI.Charting.View
{
    /// <summary>
    /// Interaction logic for LoadPresetDataDialog.xaml
    /// </summary>
    public partial class LoadPresetDataDialog : Window
    {
        public LoadPresetDataDialog()
        {
            InitializeComponent();

            DataSets = new System.Collections.ObjectModel.ObservableCollection<PresetDataItem>();

            Loaded += new RoutedEventHandler(LoadPresetDataDialog_Loaded);
        }

        void LoadPresetDataDialog_Loaded(object sender, RoutedEventArgs e)
        {
            try
            {
                string cfgFilePath = Environment.GetEnvironmentVariable("APPDATA") + "\\DataAnalysis\\ChartingPresetSetting.xml";
                System.IO.FileInfo fi = new System.IO.FileInfo(cfgFilePath);
                if (!fi.Directory.Exists)
                    fi.Directory.Create();

                if (!fi.Exists)
                {
                    //create default xml configuration file
                    Assembly assem = this.GetType().Assembly;
                    Stream stream = assem.GetManifestResourceStream("DataAnalysisControl.Charting.View.ChartingPresetSetting.xml");
                    int length = (int)stream.Length;
                    byte[] arr = new byte[length];
                    stream.Read(arr, 0, length);
                    var xmlStr = ASCIIEncoding.UTF8.GetString(arr);
                    XmlDocument doc = new XmlDocument();
                    doc.LoadXml(xmlStr);
                    doc.Save(cfgFilePath);
                }
                {
                    DataSets.Clear();
                    var doc = new XmlDocument();
                    doc.Load(Environment.GetEnvironmentVariable("APPDATA") + "\\DataAnalysis\\ChartingPresetSetting.xml");
                    foreach (XmlElement item in doc.SelectNodes("/Aitex/DataPreset/Data"))
                    {
                        string displayNameStr = item.HasAttribute("Name") ? item.Attributes["Name"].Value : "";
                        string createTimeStr = item.HasAttribute("CreateTime") ? item.Attributes["CreateTime"].Value : "";
                        if (string.IsNullOrEmpty(createTimeStr))
                            createTimeStr = DateTime.Now.ToString();
                        DataSets.Add(new PresetDataItem() { Name = displayNameStr, CreateTime = createTimeStr });
                    }
                }
            }
            catch (Exception ex)
            {
                CONTEXT.WriteLog(ex);
            }
            grid1.DataContext = this;
        }

        public class PresetDataItem
        {
            public string Name { get; set; }
            public string CreateTime { get; set; }
        }

        public System.Collections.ObjectModel.ObservableCollection<PresetDataItem> DataSets { get; set; }

        private void OnLoadData(object sender, RoutedEventArgs e)
        {
            try
            {
                string settingName = (string)((Button)sender).Tag;
                var doc = new XmlDocument();
                doc.Load(Environment.GetEnvironmentVariable("APPDATA") + "\\DataAnalysis\\ChartingPresetSetting.xml");
                foreach (XmlElement item in doc.SelectNodes(string.Format("/Aitex/DataPreset/Data[@Name='{0}']/Item", settingName)))
                {
                    //preset new item's color,line width, etc
                    string displayNameStr = item.HasAttribute("DisplayName") ? item.Attributes["DisplayName"].Value : "";
                    string dataName = item.InnerText;
                    string lineColorStr = item.HasAttribute("LineColor") ? item.Attributes["LineColor"].Value : "#FF000000";
                    string factorStr = item.HasAttribute("Factor") ? item.Attributes["Factor"].Value : "1.0";
                    string offsetStr = item.HasAttribute("Offset") ? item.Attributes["Offset"].Value : "0.0";
                    string lineWidthStr = item.HasAttribute("LineWidth") ? item.Attributes["LineWidth"].Value : "1";
                    var viewModel = CommonViewModel.Instance;
                    var source = viewModel.CurrentSelectedDataSource;
                    if (source == null)
                    {
                        Close();
                        return;
                    }
                    bool isDataNameLoaded = false;
                    if (source.Datas.ContainsKey(dataName))
                    {
                        foreach (MyLineSeries item1 in viewModel.RenderableSeries)
                        {
                            if (item1.DataSource == source && item1.SeriesName == dataName)
                            {
                                isDataNameLoaded = true;
                                break;
                            }
                        }
                    }
                    if (!isDataNameLoaded)
                        viewModel.AddDataSeries(source.Title, dataName, displayNameStr, (Color)ColorConverter.ConvertFromString(lineColorStr), Convert.ToSingle(factorStr), Convert.ToSingle(offsetStr), (int)(Convert.ToDouble(lineWidthStr) + 0.5));
                }
                Close();
            }
            catch (Exception ex)
            {
                CONTEXT.WriteLog(ex);
            }
        }

        private void OnDeleteData(object sender, RoutedEventArgs e)
        {
            string settingName = (string)((Button)sender).Tag;
            if (MessageBox.Show(string.Format("是否删除预设值的数据组'{0}'？", settingName), "预设值数据", MessageBoxButton.YesNo, MessageBoxImage.Question) == MessageBoxResult.Yes)
            {
                try
                {
                    var doc = new XmlDocument();
                    var fileName = Environment.GetEnvironmentVariable("APPDATA") + "\\DataAnalysis\\ChartingPresetSetting.xml";
                    doc.Load(fileName);
                    var itemNode = doc.SelectSingleNode(string.Format("/Aitex/DataPreset/Data[@Name='{0}']", settingName));
                    if (itemNode != null)
                        itemNode.ParentNode.RemoveChild(itemNode);
                    doc.Save(fileName);
                    LoadPresetDataDialog_Loaded(null, null);
                }
                catch (Exception ex)
                {
                    CONTEXT.WriteLog(ex);
                }
            }
        }

        private void textBox1_TextChanged(object sender, TextChangedEventArgs e)
        {
            button1.IsEnabled = !string.IsNullOrEmpty(textBox1.Text);
        }

        private void SaveCurrentSeriesConfiguration_Click(object sender, RoutedEventArgs e)
        {
            try
            {
                string presetName = textBox1.Text;
                var doc = new XmlDocument();
                var fileName = Environment.GetEnvironmentVariable("APPDATA") + "\\DataAnalysis\\ChartingPresetSetting.xml";
                doc.Load(fileName);
                var testNode = doc.SelectSingleNode(string.Format("/Aitex/DataPreset/Data[@Name='{0}']", presetName));
                if (testNode != null)
                {
                    if (MessageBox.Show(string.Format("预设名称‘{0}’已存在，是否覆盖？", presetName), "保存设置", MessageBoxButton.YesNo, MessageBoxImage.Question) == MessageBoxResult.No)
                        return;
                    testNode.ParentNode.RemoveChild(testNode);
                }


                var newNode = doc.CreateElement("Data");
                doc.SelectSingleNode("/Aitex/DataPreset").AppendChild(newNode);
                newNode.SetAttribute("Name", presetName);
                newNode.SetAttribute("CreateTime", DateTime.Now.ToString());

                List<string> dataName = new List<string>();

                foreach (MyLineSeries series in CommonViewModel.Instance.RenderableSeries)
                {
                    if (dataName.Contains(series.SeriesName))
                        continue;
                    var itemNode = doc.CreateElement("Item");
                    newNode.AppendChild(itemNode);
                    itemNode.SetAttribute("DisplayName", series.DisplayName);
                    itemNode.SetAttribute("LineColor", series.SeriesColor.ToString());
                    itemNode.SetAttribute("Factor", series.Factor.ToString());
                    itemNode.SetAttribute("Offset", series.Offset.ToString());
                    itemNode.SetAttribute("LineWidth", series.LineThickness.ToString());
                    itemNode.InnerText = series.SeriesName;
                    dataName.Add(series.SeriesName);
                }

                doc.Save(fileName);
                LoadPresetDataDialog_Loaded(null, null);
                Close();
            }
            catch (Exception ex)
            {
                CONTEXT.WriteLog(ex);
            }
        }
    }
}