/src/EntityConnector/ShowPool.xaml.cs

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 BurnSystems.EntityConnector;

using System.ComponentModel;



namespace EntityConnector

{

    /// <summary>

    /// Interaktionslogik für ShowPool.xaml

    /// </summary>

    public partial class ShowPool : Window

    {

        public string PoolName

        {

            get;

            set;

        }



        private EntityPool pool;



        private BindingList<Entity> currentEntities;



        public ShowPool()

        {

            InitializeComponent();

        }



        private void Window_Loaded(object sender, RoutedEventArgs e)

        {

            this.pool = new EntityPool("TestPool", "Server=.\\SQLEXPRESS;Database=mb_entity;Trusted_Connection=True;");

            this.currentEntities = new BindingList<Entity>(this.pool.GetAll());

            this.ListEntities.ItemsSource = this.currentEntities;

        }



        private void listItems_SelectionChanged(object sender, SelectionChangedEventArgs e)

        {

            var entity = this.ListEntities.SelectedItem as Entity;

            if (entity == null)

            {

                this.ListProperties.ItemsSource = null;

                return;

            }



            this.ListProperties.ItemsSource = entity.Data;

            if (entity.Data.Count > 0)

            {

                this.ListProperties.SelectedIndex = 0;

            }

            else

            {

                this.PropertyName.Text = string.Empty;

                this.PropertyValue.Text = string.Empty;

            }

        }



        private void ItemProperties_SelectionChanged(object sender, SelectionChangedEventArgs e)

        {

            var selected = this.ListProperties.SelectedItem;



            if (selected != null && selected is KeyValuePair<string, string>)

            {

                var pair = (KeyValuePair<string, string>)selected;

                this.PropertyName.Text = pair.Key;

                this.PropertyValue.Text = pair.Value;

            }

        }



        private void PropertyValue_LostFocus(object sender, RoutedEventArgs e)

        {

            this.SaveChangedText();

        }



        private void PropertyName_LostFocus(object sender, RoutedEventArgs e)

        {

            this.SaveChangedText();

        }



        private void SaveChangedText()

        {

            var entity = this.ListEntities.SelectedItem as Entity;

            if (entity == null)

            {

                return;

            }



            if (string.IsNullOrEmpty(this.PropertyName.Text))

            {

                return;

            }



            entity[this.PropertyName.Text] = this.PropertyValue.Text;

            this.ListEntities.Items.Refresh();

            this.ListProperties.Items.Refresh();



            this.pool.Update(entity);

        }



        private void ButtonAddProperty_Click(object sender, RoutedEventArgs e)

        {

            this.PropertyName.Text = string.Empty;

            this.PropertyValue.Text = string.Empty;

            this.PropertyName.Focus();

        }



        private void ButtonNextProperty_Click(object sender, RoutedEventArgs e)

        {

            var entity = this.ListEntities.SelectedItem as Entity;

            if (entity == null)

            {

                return;

            }



            var currentKey = this.PropertyName.Text;

            var hasMatched = false;

            foreach (var pair in entity.Data)

            {

                if (hasMatched)

                {

                    this.PropertyName.Text = pair.Key;

                    this.PropertyValue.Text = pair.Value;

                    this.PropertyName.Focus();

                    break;

                }



                if (pair.Key == currentKey)

                {

                    hasMatched = true;

                }

            }

        }



        private void ButtonDeleteProperty_Click(object sender, RoutedEventArgs e)

        {

            var entity = this.ListEntities.SelectedItem as Entity;

            if (entity == null)

            {

                return;

            }



            var oldIndex = this.ListProperties.SelectedIndex;



            entity.Data.Remove(this.PropertyName.Text);

            this.ListProperties.Items.Refresh();

            this.ListEntities.Items.Refresh();

            

            this.pool.Update(entity);



            if (entity.Data.Count == 0)

            {

                this.PropertyName.Text = string.Empty;

                this.PropertyValue.Text = string.Empty;

            }

            else

            {

                this.ListProperties.SelectedIndex = oldIndex;

            }

        }



        private void ButtonAddEntity_Click(object sender, RoutedEventArgs e)

        {

            var entity = new Entity();

            this.pool.Add(entity);

            this.currentEntities.Add(entity);



            this.ListEntities.SelectedItem = entity;

            this.ListEntities.ScrollIntoView(entity);

            this.PropertyName.Focus();

        }



        private void ButtonDeleteEntity_Click(object sender, RoutedEventArgs e)

        {

            var entity = this.ListEntities.SelectedItem as Entity;            

            if (entity == null)

            {

                return;

            }



            var oldIndex = this.ListEntities.SelectedIndex;



            this.pool.Delete(entity);

            this.currentEntities.Remove(entity);



            if (this.currentEntities.Count == 0)

            {

                this.PropertyName.Text = string.Empty;

                this.PropertyValue.Text = string.Empty;

            }

            else

            {

                this.ListEntities.SelectedIndex = oldIndex;

            }

        }

    }

}