using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
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.Navigation;
using System.Windows.Shapes;
using ESRI.ArcGIS.Geodatabase;
using KGIS.Framework.Utils;
using KGIS.Framework.Utils.Helper;

namespace Kingo.Plugin.MakeTaskPackage.View
{
    /// <summary>
    /// FrmCustomExtent.xaml 的交互逻辑
    /// </summary>
    public partial class FrmXZQSelected : BaseWindow
    {

        public IFeatureClass ImportFeatureClass { get; set; }

        public string CustomLayerPath { get; set; }

        public string CustomLayerName { get; set; }
        public List<string> KeyFieldsList = new List<string>();

        public  Dictionary<string, OSGeo.OGR.Geometry> geometrys = new Dictionary<string, OSGeo.OGR.Geometry> ();
        public string KeyField = "";
        public string WhereStr = "";

        public Action GetCustomXZQInfo;
        public FrmXZQSelected()
        {
            InitializeComponent();
        }

        private void FrmXZQSelected_Loaded(object sender, RoutedEventArgs e)
        {

            if (ImportFeatureClass == null) return;
            IFeatureCursor featureCursor = null;
            try
            {
                DataTable dtNew =null;
                DataTable dtLayer = null;
                if (CustomLayerPath.ToLower().Contains(".gdb") || CustomLayerPath.ToLower().Contains(".mdb"))
                {
                    if(CustomLayerPath.ToLower().Contains(".gdb"))
                        CustomLayerPath = CustomLayerPath.Substring(0, CustomLayerPath.LastIndexOf(".gdb")+4);

                    dtLayer = Common.GdalShapeOperate.Instance.GDBToDataTable(CustomLayerPath, CustomLayerName);
                }
                else
                {
                     dtLayer = Common.GdalShapeOperate.Instance.ShapeToDataTable(CustomLayerPath);
                }

                if (dtLayer != null)
                {
                    dtNew = dtLayer.Clone();
                    foreach (DataRow s in dtLayer.Rows)
                    {
                        dtNew.ImportRow(s);//导入旧数据
                    }

                    if (dtNew != null)
                    {
                        GetCobFields(dtNew);
                        dtNew.Columns.Add("IsValid", typeof(bool));
                        foreach (System.Data.DataRow item in dtNew.Rows)
                        {
                            item["IsValid"] = false;
                        }
                    }
                }


                this.Dispatcher.Invoke(() =>
                {
                    this.gridData.ItemsSource = null;
                    this.gridData.ItemsSource = dtNew;
                    this.gridData.Columns[0].AllowEditing = DevExpress.Utils.DefaultBoolean.True;
                    this.combFields.SelectedIndex = 0;

                    if (this.gridData.Columns["Shape"] != null)
                        this.gridData.Columns["Shape"].Visible = false;

                    if (this.gridData.Columns["SHAPE"] != null)
                        this.gridData.Columns["SHAPE"].Visible = false;
                });
              
            }
            catch (Exception ex)
            {
                LogAPI.Debug(ex);
            }
            finally
            {
                if (featureCursor != null)
                    Marshal.FinalReleaseComObject(featureCursor);
            }
        }


        /// <summary>
        /// 获取下拉列表字段
        /// </summary>
        /// <param name="table"></param>
        private void GetCobFields(DataTable table)
        {
            for (int i = 0; i < table.Columns.Count; i++)
            {

                DataColumn dc = table.Columns[i];
                if (dc.ColumnName.ToLower() == "shape") continue;

                Type fieldType = dc.DataType;
                string whereStr = "";
                switch (fieldType.Name)
                {
                    case "Double":
                    case "Decimal":
                    case "Int32":
                    case "Int64":
                        whereStr = dc.ColumnName + "={0}";
                        break;
                    case "String":
                       whereStr = dc.ColumnName+ "='{0}'";
                        break;
                    default:
                        whereStr = dc.ColumnName + "='{0}'";
                        break;
                }
                AddComboxItem(dc.Caption, dc.ColumnName, whereStr);
            }

        }


        private void AddComboxItem(string name, string code, string whereStr)
        {
            ComboxItemClass itemClass = new ComboxItemClass() { Name = name, Code = code, WhereStr = whereStr };
            this.combFields.Items.Add(itemClass);
        }

        public class ComboxItemClass
        {
            public string Name { get; set; }

            public string Code { get; set; }

            public string WhereStr { get; set; }
        }

        private void btnOK_Click(object sender, RoutedEventArgs e)
        {
            KeyField = (this.combFields.SelectedItem as ComboxItemClass).Code;
            WhereStr = (this.combFields.SelectedItem as ComboxItemClass).WhereStr;

            DataTable dt = this.gridData.ItemsSource as DataTable;
            foreach (DataRow item in dt.Rows)
            {
                if (item["IsValid"].ToString() == "True")
                {
                    if (!KeyFieldsList.Contains(item[KeyField].ToString()))
                        KeyFieldsList.Add(item[KeyField].ToString());
                    if (!geometrys.Keys.Contains(item[KeyField].ToString()))
                        geometrys.Add(item[KeyField].ToString(), item["SHAPE"] as OSGeo.OGR.Geometry);
                }
            }

            Type fieldType = dt.Columns[KeyField].DataType;
            if (fieldType.Name.ToLower() != "double" && fieldType.Name.ToLower() != "decimal")
            {
                var data = (from a in dt.AsEnumerable()
                            group a by a.Field<string>(KeyField)
                                into g
                            where g.Count() > 1
                            select new
                            {
                                value = g.Key
                            }).ToList();

                if (data != null && data.Count != 0)
                {
                    MessageHelper.Show(string.Format("生成文件名称{0}字段值不唯一！请重新选择字段！", KeyField));
                    return;
                }
            }


            if (GetCustomXZQInfo != null)
                GetCustomXZQInfo();
            this.Close();
        }


     
        private void btnCancel_Click(object sender, RoutedEventArgs e)
        {
           
            this.Close();
        }

        private void CheckBox_Click(object sender, RoutedEventArgs e)
        {
            try
            {
                if (gridData.SelectedItem != null)
                {
                    DataRowView dr = (gridData.SelectedItem as DataRowView);
                    if ((sender as CheckBox).IsChecked == true)
                    {
                        dr["IsValid"] = true;
                    }
                    else
                    {
                        dr["IsValid"] = false;
                    }
                }
            }
            catch (Exception ex)
            {
                LogAPI.Debug(ex);
            }
        }
    }
}