using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using DirectoryCreator.Models;
using Microsoft.Win32;
using System.Collections.ObjectModel;
using System.IO;
using System.Text.Json;
using System.Windows;

namespace DirectoryCreator
{
    /// <summary>
    /// Interaction logic for Window1.xaml
    /// </summary>
    public partial class ConfigEditorWindow : Window
    {
        public ConfigEditorWindow()
        {
            InitializeComponent();
        }
    }
}

namespace DirectoryCreator.ViewModels
{

    public partial class ConfigEditorViewModel : ObservableObject
    {
        private readonly Window _window;
        private readonly string _configPath;
        private bool _isNewConfig;

        [ObservableProperty]
        private string configDescription;

        [ObservableProperty]
        private string basePath;

        [ObservableProperty]
        private ObservableCollection<FolderStructureViewModel> folderStructures;

        public ConfigEditorViewModel(Window window, FolderConfig? existingConfig = null, string? configPath = null)
        {
            _window = window;
            _configPath = configPath;
            _isNewConfig = existingConfig == null;

            FolderStructures = new ObservableCollection<FolderStructureViewModel>();

            if (existingConfig != null)
            {
                LoadFromConfig(existingConfig);
            }
            else
            {
                ConfigDescription = "Nueva Configuración";
                BasePath = "";
            }
        }

        private void LoadFromConfig(FolderConfig config)
        {
            ConfigDescription = config.Description;
            BasePath = config.BasePath;

            foreach (var structure in config.FolderStructures)
            {
                var structureVm = new FolderStructureViewModel
                {
                    BasePath = structure.BasePath,
                    Subfolders = new ObservableCollection<SubfolderViewModel>(
                        structure.Subfolders.Select(s => new SubfolderViewModel { Name = s }))
                };
                FolderStructures.Add(structureVm);
            }
        }

        [RelayCommand]
        private void SelectBasePath()
        {
            var dialog = new OpenFolderDialog
            {
                Title = "Seleccionar Carpeta Base"
            };

            if (dialog.ShowDialog() == true)
            {
                BasePath = dialog.FolderName;
            }
        }

        [RelayCommand]
        private void SelectStructurePath(FolderStructureViewModel structure)
        {
            var dialog = new OpenFolderDialog
            {
                Title = "Seleccionar Carpeta Base para la Estructura"
            };

            if (dialog.ShowDialog() == true)
            {
                structure.BasePath = dialog.FolderName;
            }
        }

        [RelayCommand]
        private void AddStructure()
        {
            FolderStructures.Add(new FolderStructureViewModel
            {
                BasePath = "",
                Subfolders = new ObservableCollection<SubfolderViewModel>()
            });
        }

        [RelayCommand]
        private void RemoveStructure(FolderStructureViewModel structure)
        {
            FolderStructures.Remove(structure);
        }

        [RelayCommand]
        private void AddSubfolder(FolderStructureViewModel structure)
        {
            structure.Subfolders.Add(new SubfolderViewModel { Name = "Nueva Subcarpeta" });
        }

        [RelayCommand]
        private void RemoveSubfolder(SubfolderViewModel subfolder)
        {
            foreach (var structure in FolderStructures)
            {
                if (structure.Subfolders.Contains(subfolder))
                {
                    structure.Subfolders.Remove(subfolder);
                    break;
                }
            }
        }

        [RelayCommand]
        private void Save()
        {
            try
            {
                var config = new FolderConfig
                {
                    Description = ConfigDescription,
                    BasePath = BasePath,
                    FolderStructures = FolderStructures.Select(s => new FolderStructure
                    {
                        BasePath = s.BasePath,
                        Subfolders = s.Subfolders.Select(sf => sf.Name).ToList()
                    }).ToList()
                };

                string filePath = _configPath;
                if (_isNewConfig || string.IsNullOrEmpty(filePath))
                {
                    var dialog = new SaveFileDialog
                    {
                        Filter = "Archivos JSON (*.json)|*.json",
                        InitialDirectory = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Configurations"),
                        FileName = "config.json"
                    };

                    if (dialog.ShowDialog() != true)
                        return;

                    filePath = dialog.FileName;
                }

                var jsonString = JsonSerializer.Serialize(config, new JsonSerializerOptions
                {
                    WriteIndented = true
                });

                File.WriteAllText(filePath, jsonString);
                MessageBox.Show("Configuración guardada exitosamente!", "Éxito", MessageBoxButton.OK, MessageBoxImage.Information);
                _window.DialogResult = true;
                _window.Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show($"Error al guardar la configuración: {ex.Message}", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
            }
        }

        [RelayCommand]
        private void Cancel()
        {
            _window.DialogResult = false;
            _window.Close();
        }
    }

    public partial class FolderStructureViewModel : ObservableObject
    {
        [ObservableProperty]
        private string basePath;

        [ObservableProperty]
        private ObservableCollection<SubfolderViewModel> subfolders;
    }

    public partial class SubfolderViewModel : ObservableObject
    {
        [ObservableProperty]
        private string name;
    }
}