//--- LogViewModel.cs ---
using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using NetDocsForLLM.Services;
using NetDocsForLLM.ViewModels;
using Ookii.Dialogs.Wpf;
using System;
using System.Drawing.Printing;
using System.IO;
using System.Reflection.Metadata;
using System.Windows.Controls;
using System.Windows.Forms;
using System.Windows.Media.Media3D;
using System.Windows;
using System.Windows.Threading;
using static System.Net.Mime.MediaTypeNames;
using static System.Windows.Forms.VisualStyles.VisualStyleElement.TrayNotify;

namespace NetDocsForLLM.ViewModels
{
    public class LogViewModel : ObservableObject
    {
        private string _logContent;
        private int _logLevel;
        private readonly DispatcherTimer _refreshTimer;

        public string LogContent
        {
            get => _logContent;
            set => SetProperty(ref _logContent, value);
        }

        public int LogLevel
        {
            get => _logLevel;
            set
            {
                if (SetProperty(ref _logLevel, value))
                {
                    UpdateLogContent();
                }
            }
        }

        public int ErrorCount => AppLogger.ErrorCount;
        public int WarningCount => AppLogger.WarningCount;
        public int TypeCount => AppLogger.TypeCount;
        public int MemberCount => AppLogger.MemberCount;

        public IRelayCommand ClearLogCommand { get; }
        public IRelayCommand SaveLogCommand { get; }
        public IRelayCommand RefreshLogCommand { get; }

        public LogViewModel()
        {
            _logLevel = LogLevel; // Por defecto, mostrar INFO y errores
            _logContent = "";

            ClearLogCommand = new RelayCommand(ClearLog);
            SaveLogCommand = new RelayCommand(SaveLog);
            RefreshLogCommand = new RelayCommand(UpdateLogContent);

            // Crear timer para actualizar el contenido
            _refreshTimer = new DispatcherTimer
            {
                Interval = TimeSpan.FromSeconds(1)
            };

            _refreshTimer.Tick += (s, e) => UpdateProperties();
            _refreshTimer.Start();

            // Suscribirse al evento de actualización de logs
            AppLogger.LogUpdated += OnLogUpdated;

            UpdateLogContent();
        }

        private void OnLogUpdated(object sender, EventArgs e)
        {
            // Este método podría ser llamado desde otro hilo, así que usamos el Dispatcher
            App.Current.Dispatcher.InvokeAsync(() =>
            {
                UpdateLogContent();
                UpdateProperties();
            });
        }

        private void UpdateProperties()
        {
            OnPropertyChanged(nameof(ErrorCount));
            OnPropertyChanged(nameof(WarningCount));
            OnPropertyChanged(nameof(TypeCount));
            OnPropertyChanged(nameof(MemberCount));
        }

        private void UpdateLogContent()
        {
            LogContent = AppLogger.GetContent((LogLevel)_logLevel);
        }

        private void ClearLog()
        {
            AppLogger.Clear();
            UpdateLogContent();
        }

        private void SaveLog()
        {
            var dialog = new VistaSaveFileDialog
            {
                Filter = "Archivos de texto (*.txt)|*.txt|Archivos de log (*.log)|*.log",
                DefaultExt = ".txt",
                Title = "Guardar archivo de log"
            };

            if (dialog.ShowDialog() == true)
            {
                try
                {
                    File.WriteAllText(dialog.FileName, AppLogger.GetContent());
                    AppLogger.LogInfo($"Log guardado en: {dialog.FileName}");
                }
                catch (Exception ex)
                {
                    AppLogger.LogError($"Error al guardar el log: {ex.Message}");
                }
            }
        }
    }
}