using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Reflection;
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;

namespace Tango.FSE.Procedures.Dialogs
{
    /// <summary>
    /// Interaction logic for ResultGridView.xaml
    /// </summary>
    public partial class ResultGridView : UserControl
    {
        public class ResultObject
        {
            public Object V0 { get; set; }
            public Object V1 { get; set; }
            public Object V2 { get; set; }
            public Object V3 { get; set; }
            public Object V4 { get; set; }
            public Object V5 { get; set; }
            public Object V6 { get; set; }
            public Object V7 { get; set; }
            public Object V8 { get; set; }
            public Object V9 { get; set; }
            public Object V10 { get; set; }
            public Object V11 { get; set; }
            public Object V12 { get; set; }
            public Object V13 { get; set; }
            public Object V14 { get; set; }
        }

        public ResultGridView()
        {
            InitializeComponent();

            Loaded += ResultGridView_Loaded;
        }

        private void ResultGridView_Loaded(object sender, RoutedEventArgs e)
        {
            var vm = DataContext as ResultGridViewVM;
            var results = vm.Items;

            List<ResultObject> objects = new List<ResultObject>();

            if (results.Count > 0)
            {
                var model = results.First();

                if (model.GetType().IsValueTypeOrString())
                {
                    grid.Columns.Add(new DataGridTextColumn()
                    {
                        Header = "Values",
                        Binding = new Binding("V0"),
                    });

                    foreach (var item in results)
                    {
                        objects.Add(new ResultObject()
                        {
                            V0 = item,
                        });
                    }
                }
                else
                {
                    int columnCount = 0;

                    //Generate columns
                    foreach (var prop in model.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance))
                    {
                        var att = prop.GetCustomAttribute<DescriptionAttribute>();

                        grid.Columns.Add(new DataGridTextColumn()
                        {
                            Header = att != null ? att.Description : prop.Name,
                            Binding = new Binding($"V{columnCount++}"),
                        });
                    }

                    foreach (var field in model.GetType().GetFields(BindingFlags.Public | BindingFlags.Instance))
                    {
                        var att = field.GetCustomAttribute<DescriptionAttribute>();

                        grid.Columns.Add(new DataGridTextColumn()
                        {
                            Header = att != null ? att.Description : field.Name,
                            Binding = new Binding($"V{columnCount++}"),
                        });
                    }

                    //Generate cells

                    foreach (var item in results)
                    {
                        ResultObject obj = new ResultObject();

                        var properties = model.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance).ToList();
                        var fields = model.GetType().GetFields(BindingFlags.Public | BindingFlags.Instance).ToList();

                        int propCount = 0;

                        for (int i = 0; i < properties.Count; i++)
                        {
                            typeof(ResultObject).GetProperty($"V{i}").SetValue(obj, properties[i].GetValue(item));
                            propCount++;
                        }

                        for (int i = 0; i < fields.Count; i++)
                        {
                            typeof(ResultObject).GetProperty($"V{i + propCount}").SetValue(obj, fields[i].GetValue(item));
                        }

                        objects.Add(obj);
                    }
                }
            }

            grid.ItemsSource = objects;
        }
    }
}