using bsmd.database;
using ENI2.Excel;
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 PortAreaControl.xaml
    /// </summary>
    public partial class PortAreaControl : UserControl
    {
        private readonly ObservableCollection<PortArea> _portAreas = new ObservableCollection<PortArea>();

        public PortAreaControl()
        {
            InitializeComponent();
            this.dataGridPortAreas.ItemsSource = _portAreas;

            var view = CollectionViewSource.GetDefaultView(_portAreas);
            view.SortDescriptions.Add(new SortDescription(nameof(PortArea.Locode), ListSortDirection.Ascending));
            view.SortDescriptions.Add(new SortDescription(nameof(PortArea.Code), ListSortDirection.Ascending));

            _ = LoadPortAreasAsync();

            this.dataGridPortAreas.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.dataGridPortAreas.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.dataGridPortAreas.ContextMenu.Items.Add(delItem);
        }

        private async Task LoadPortAreasAsync()
        {
            List<PortArea> items = await DBManagerAsync.LoadPortAreasAsync(true);
            foreach (PortArea item in items)
            {
                _portAreas.Add(item);
            }
        }

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

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

        private void buttonImport_Click(object sender, RoutedEventArgs e)
        {
            var imported = ExcelLocalImportHelper.ImportPortAreas();
            foreach (var item in imported)
            {
                _portAreas.Add(item);
            }
        }

        private void dataGridPortAreas_CellEditEnding(object sender, DataGridCellEditEndingEventArgs e)
        {
            if (e.Row?.Item is PortArea portArea)
            {
                portArea.IsDirty = true;
            }
        }

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

        private async void DelItem_Click(object sender, RoutedEventArgs e)
        {
            if (this.dataGridPortAreas.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<PortArea>();
                    foreach (PortArea item in this.dataGridPortAreas.SelectedItems)
                        selectedItems.Add(item);

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

        private void AddNewPortArea()
        {
            var item = new PortArea
            {
                IsDirty = true
            };
            _portAreas.Add(item);
            this.dataGridPortAreas.SelectedItem = item;
            this.dataGridPortAreas.ScrollIntoView(item);
        }

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

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