using bsmd.database;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;

namespace ENI2.Controls
{
    /// <summary>
    /// Interaction logic for SERVTemplatesControl.xaml
    /// </summary>
    public partial class SERVTemplatesControl : UserControl
    {
        private readonly ObservableCollection<SERV_Template> _templates = new ObservableCollection<SERV_Template>();

        public SERVTemplatesControl()
        {
            InitializeComponent();
            this.dataGridSERVTemplates.ItemsSource = _templates;

            var view = CollectionViewSource.GetDefaultView(_templates);
            view.SortDescriptions.Add(new SortDescription(nameof(SERV_Template.ServiceName), ListSortDirection.Ascending));

            _ = LoadTemplatesAsync();

            this.dataGridSERVTemplates.ContextMenu = new ContextMenu();
            MenuItem addItem = new MenuItem
            {
                Header = Properties.Resources.textAdd,
                Icon = new System.Windows.Controls.Image { Source = new System.Windows.Media.Imaging.BitmapImage(new Uri("pack://application:,,,/Resources/add.png")) }
            };
            addItem.Click += AddItem_Click;
            this.dataGridSERVTemplates.ContextMenu.Items.Add(addItem);

            MenuItem delItem = new MenuItem
            {
                Header = Properties.Resources.textDelete,
                Icon = new System.Windows.Controls.Image { Source = new System.Windows.Media.Imaging.BitmapImage(new Uri("pack://application:,,,/Resources/delete.png")) }
            };
            delItem.Click += DelItem_Click;
            this.dataGridSERVTemplates.ContextMenu.Items.Add(delItem);
        }

        private async Task LoadTemplatesAsync()
        {
            List<SERV_Template> items = await DBManagerAsync.GetSERVTemplatesAsync(true);
            foreach (SERV_Template item in items)
            {
                _templates.Add(item);
            }
        }

        private void buttonSave_Click(object sender, RoutedEventArgs e)
        {
            _ = SaveTemplatesAsync();
        }

        private void buttonAdd_Click(object sender, RoutedEventArgs e)
        {
            AddNewTemplate();
        }

        private void dataGridSERVTemplates_CellEditEnding(object sender, DataGridCellEditEndingEventArgs e)
        {
            if (e.Row?.Item is SERV_Template item)
            {
                item.IsDirty = true;
            }
        }

        private void AddItem_Click(object sender, RoutedEventArgs e)
        {
            AddNewTemplate();
        }

        private async void DelItem_Click(object sender, RoutedEventArgs e)
        {
            if (this.dataGridSERVTemplates.SelectedItems.Count > 0)
            {
                if (MessageBox.Show("Are you sure to delete the selected values?", Properties.Resources.textConfirmation, MessageBoxButton.YesNo, MessageBoxImage.Question, MessageBoxResult.No) ==
                    MessageBoxResult.Yes)
                {
                    var selectedItems = new List<SERV_Template>();
                    foreach (SERV_Template item in this.dataGridSERVTemplates.SelectedItems)
                        selectedItems.Add(item);

                    foreach (SERV_Template item in selectedItems)
                    {
                        int result = await DBManagerAsync.DeleteAsync(item);
                        if (result == 1 || item.IsNew)
                        {
                            _templates.Remove(item);
                        }
                    }
                }
            }
        }

        private void AddNewTemplate()
        {
            var item = new SERV_Template
            {
                IsDirty = true
            };
            _templates.Add(item);
            this.dataGridSERVTemplates.SelectedItem = item;
            this.dataGridSERVTemplates.ScrollIntoView(item);
        }

        private async Task SaveTemplatesAsync()
        {
            int totalSaves = 0;
            foreach (SERV_Template item in _templates)
            {
                if (item.IsNew || item.IsDirty)
                {
                    totalSaves += await DBManagerAsync.SaveAsync(item);
                }
            }

            if (totalSaves > 0)
            {
                MessageBox.Show($"{totalSaves} SERV templates saved", "Success", MessageBoxButton.OK, MessageBoxImage.Information);
            }
        }
    }
}