using System;
using System.Globalization;
using System.Linq;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Data.Converters;
using Avalonia.Interactivity;
using Avalonia.Markup.Xaml;
using Avalonia.Media;
using Avalonia.VisualTree;
using Project_Periodensystem.Persistence;
using Project_Periodensystem.View.Converters;

namespace Project_Periodensystem.View
{
    // Converter to map element series to a color
    public class SeriesToColorConverter
    {
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if (value == null) return new SolidColorBrush(Colors.Gray);
            
            return value.ToString() switch
            {
                "Nichtmetall" => new SolidColorBrush(Color.Parse("#3e6418")),
                "Metall" => new SolidColorBrush(Color.Parse("#711019")),
                "Post-Übergangsmetall" => new SolidColorBrush(Color.Parse("#555555")),
                "Halbmetall" => new SolidColorBrush(Color.Parse("#015146")),
                "Edelgas" => new SolidColorBrush(Color.Parse("#3a2151")),
                "Halogen" => new SolidColorBrush(Color.Parse("#846011")),
                "Alkalimetall" => new SolidColorBrush(Color.Parse("#6c3b01")),
                "Erdalkalimetall" => new SolidColorBrush(Color.Parse("#846011")),
                "Lanthanoid" => new SolidColorBrush(Color.Parse("#402c17")),
                "Actinoid" => new SolidColorBrush(Color.Parse("#732e4c")),
                _ => new SolidColorBrush(Color.Parse("#222222"))
            };
        }
    }

    public partial class PeriodicTablePage : UserControl
    {
        private readonly Grid? periodicGrid;

        public PeriodicTablePage()
        {
            InitializeComponent();
            periodicGrid = this.Find<Grid>("PeriodicGrid");
            InitializePeriodicTable();
        }

        private void InitializeComponent()
        {
            AvaloniaXamlLoader.Load(this);
        }

        private void InitializePeriodicTable()
        {
            try
            {
                Logger.Log("Initialisiere PeriodicTable...");
                
                // Prüfen ob das Grid gefunden wurde
                if (periodicGrid == null)
                {
                    Logger.Log("FEHLER: PeriodicGrid nicht gefunden!");
                    return;
                }

                // Prüfen ob Elemente vorhanden sind
                if (PeriodicTableData.Elements == null || !PeriodicTableData.Elements.Any())
                {
                    Logger.Log("FEHLER: Keine Elemente in PeriodicTableData!");
                    return;
                }

                var converter = new SeriesToColorConverter();
                // Elemente hinzufügen
                foreach (var element in PeriodicTableData.Elements)
                {
                    Logger.Log($"Füge Element hinzu: {element.Symbol} ({element.Row},{element.Column})");
                    
                    var border = new Border
                    {
                        Width = 58,
                        Height = 58,
                        Margin = new Thickness(1),
                        CornerRadius = new CornerRadius(4),
                        BorderThickness = new Thickness(1),
                        BorderBrush = new SolidColorBrush(Colors.Gray),
                        Background = converter.Convert(element.Series, typeof(IBrush), null!, CultureInfo.CurrentCulture) as IBrush // Hier wird die Farbe gesetzt
                    };

                    var stackPanel = new StackPanel();
                    
                    // Symbol
                    stackPanel.Children.Add(new TextBlock
                    {
                        Text = element.Symbol,
                        FontSize = 20,
                        Foreground = new SolidColorBrush(Colors.White),
                        HorizontalAlignment = Avalonia.Layout.HorizontalAlignment.Center
                    });

                    // Atomic Number
                    stackPanel.Children.Add(new TextBlock
                    {
                        Text = element.AtomicNumber.ToString(),
                        FontSize = 12,
                        Foreground = new SolidColorBrush(Colors.White),
                        HorizontalAlignment = Avalonia.Layout.HorizontalAlignment.Center
                    });

                    border.Child = stackPanel;

                    // Position setzen
                    Grid.SetRow(border, Math.Max(0, element.Row - 1));
                    Grid.SetColumn(border, Math.Max(0, element.Column - 1));
                    
                    periodicGrid.Children.Add(border);
                    Logger.Log($"Element {element.Symbol} wurde hinzugefügt");
                }

                Logger.Log("PeriodicTable wurde initialisiert");
            }
            catch (Exception ex)
            {
                Logger.Log($"FEHLER beim Initialisieren des PeriodicTable: {ex.Message}");
                Logger.Log($"StackTrace: {ex.StackTrace}");
            }
        }

        private void AboutButton_Click(object? sender, RoutedEventArgs e)
        {
            try
            {
                Logger.Log("AboutButton wurde geklickt");
                var mainWindow = this.FindAncestorOfType<MainWindow>();
                if (mainWindow != null)
                {
                    Logger.Log("Navigation zu About Page");
                    mainWindow.ShowAbout();
                }
                else
                {
                    Logger.Log("FEHLER: MainWindow nicht gefunden");
                }
            }
            catch (Exception ex)
            {
                Logger.Log($"FEHLER im AboutButton_Click: {ex.Message}");
            }
        }
    }
}