using ModernWpf.Controls;
using DownloadManager.Core.Services;
using DownloadManager.Core.Models;
using System.Windows;
using System.Linq;
using System.Collections.ObjectModel;
using System.Threading.Tasks;

namespace DownloadManager.WPF.Views.Dialogs;

public partial class CategoryManagerDialog : ContentDialog
{
    private readonly ICategoryService _categoryService;
    private ObservableCollection<DownloadCategory> _categories = new();

    public CategoryManagerDialog(ICategoryService categoryService)
    {
        InitializeComponent();
        _categoryService = categoryService;
        CategoryList.ItemsSource = _categories;
        _ = LoadCategoriesAsync();
    }

    private async Task LoadCategoriesAsync()
    {
        _categories.Clear();
        var items = await _categoryService.GetCategoriesAsync();
        foreach (var item in items)
        {
            _categories.Add(item);
        }
    }

    private void CategoryList_SelectionChanged(object sender, System.Windows.Controls.SelectionChangedEventArgs e)
    {
        if (CategoryList.SelectedItem is DownloadCategory selected)
        {
            NameBox.Text = selected.Name;
            ExtensionsBox.Text = selected.Extensions;
            UpdateBtn.IsEnabled = true;
            DeleteBtn.IsEnabled = true;
        }
        else
        {
            NameBox.Text = "";
            ExtensionsBox.Text = "";
            UpdateBtn.IsEnabled = false;
            DeleteBtn.IsEnabled = false;
        }
    }

    private async void AddButton_Click(object sender, RoutedEventArgs e)
    {
        if (string.IsNullOrWhiteSpace(NameBox.Text)) return;
        var cat = new DownloadCategory
        {
            Name = NameBox.Text,
            Extensions = ExtensionsBox.Text,
            SavePath = "" // Varsayılanı boş bırakıyoruz
        };
        await _categoryService.AddCategoryAsync(cat);
        await LoadCategoriesAsync();
        CategoryList.SelectedItem = _categories.FirstOrDefault(c => c.Name == cat.Name);
    }

    private async void UpdateButton_Click(object sender, RoutedEventArgs e)
    {
        if (CategoryList.SelectedItem is DownloadCategory selected && !string.IsNullOrWhiteSpace(NameBox.Text))
        {
            selected.Name = NameBox.Text;
            selected.Extensions = ExtensionsBox.Text;
            await _categoryService.UpdateCategoryAsync(selected);
            await LoadCategoriesAsync();
            CategoryList.SelectedItem = _categories.FirstOrDefault(c => c.Id == selected.Id);
        }
    }

    private async void DeleteButton_Click(object sender, RoutedEventArgs e)
    {
        if (CategoryList.SelectedItem is DownloadCategory selected)
        {
            await _categoryService.DeleteCategoryAsync(selected.Id);
            await LoadCategoriesAsync();
        }
    }
}