using Avalonia;
using Avalonia.Controls;
using Avalonia.Media;
using Avalonia.VisualTree;
using Project_Periodensystem.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using static Project_Periodensystem.Model.AppTheme;

namespace Project_Periodensystem.View
{
    public partial class MainWindow : Window
    {
        private ContentControl? mainContent;
        public static AppTheme CurrentTheme { get; set; } = AppTheme.Dark;
        
        public static Dictionary<AppTheme, (string Background, string Foreground)> ThemeColors { get; } = new()
        {
            { AppTheme.Dark, ("#2F2F2F", "#FFFFFF") },    // Dunkles Anthrazit & Weiß
            { AppTheme.Light, ("#FFFFFF", "#000000") },   // Weiß & Schwarz
            { AppTheme.Classic, ("#E8E8E8", "#000000") }  // Stylisches Grau & Schwarz
        };

        public MainWindow()
        {
            InitializeComponent();
            mainContent = this.FindControl<ContentControl>("MainContent");
            ShowLandingPage();
        }

        public void ShowLandingPage()
        {
            mainContent!.Content = new LandingPage();
            UpdateTheme(AppTheme.Dark);
        }

        public void ShowPeriodicTable()
        {
            mainContent!.Content = new PeriodicTablePage();
            UpdateTheme(AppTheme.Dark);
        }

        public void ShowAboutPage()
        {
            mainContent!.Content = new AboutPage();
            UpdateTheme(AppTheme.Dark);
        }

        public void UpdateTheme(AppTheme theme)
        {
            CurrentTheme = theme;
            if (mainContent?.Content is UserControl control)
            {
                var (background, foreground) = ThemeColors[theme];
                control.Background = new SolidColorBrush(Color.Parse(background));
                
                // Update text colors for all direct TextBlocks
                foreach (var textBlock in control.GetVisualDescendants().OfType<TextBlock>())
                {
                    var parent = textBlock.Parent;
                    if (parent == null || 
                        parent is Button || 
                        parent?.GetType().ToString().Contains("ElementTile") == true)
                    {
                        continue;
                    }
                    
                    textBlock.Foreground = new SolidColorBrush(Color.Parse(foreground));
                }
            }
        }
    }
}