using Avalonia;
using Avalonia.Controls;
using Avalonia.Input;
using Avalonia.Media;
using JdeScoping.ConfigManager.ViewModels.Forms;
using JdeScoping.ConfigManager.ViewModels.PipelineSteps;

namespace JdeScoping.ConfigManager.Views.Controls;

public partial class PipelineStepCard : UserControl
{
    public static readonly StyledProperty<string> StepColorProperty =
        AvaloniaProperty.Register<PipelineStepCard, string>(nameof(StepColor), "#3B82F6");

    public PipelineStepCard()
    {
        InitializeComponent();
        PointerPressed += OnPointerPressed;
        PropertyChanged += OnPropertyChangedHandler;
        DataContextChanged += OnDataContextChanged;
    }

    /// <summary>
    /// Gets or sets the step color for the icon background.
    /// </summary>
    public string StepColor
    {
        get => GetValue(StepColorProperty);
        set => SetValue(StepColorProperty, value);
    }

    private void OnPropertyChangedHandler(object? sender, AvaloniaPropertyChangedEventArgs e)
    {
        if (e.Property == StepColorProperty)
        {
            UpdateIconColor();
        }
    }

    private void OnDataContextChanged(object? sender, EventArgs e)
    {
        UpdateIconColor();
        UpdateSelectionState();

        if (DataContext is PipelineStepViewModelBase vm)
        {
            vm.PropertyChanged += (s, e) =>
            {
                if (e.PropertyName == nameof(PipelineStepViewModelBase.IsSelected))
                {
                    UpdateSelectionState();
                }
            };
        }
    }

    private void UpdateIconColor()
    {
        var iconBg = this.FindControl<Border>("IconBackground");
        if (iconBg != null && !string.IsNullOrEmpty(StepColor))
        {
            if (Color.TryParse(StepColor, out var color))
            {
                iconBg.Background = new SolidColorBrush(color);
            }
        }
    }

    private void UpdateSelectionState()
    {
        var cardBorder = this.FindControl<Border>("CardBorder");
        if (cardBorder != null && DataContext is PipelineStepViewModelBase vm)
        {
            if (vm.IsSelected)
            {
                cardBorder.BorderBrush = new SolidColorBrush(Color.Parse("#3B82F6"));
                cardBorder.Background = new SolidColorBrush(Color.Parse("#1E2A3A"));
            }
            else
            {
                cardBorder.BorderBrush = new SolidColorBrush(Color.Parse("#3D4550"));
                cardBorder.Background = new SolidColorBrush(Color.Parse("#1A1F26"));
            }
        }
    }

    private void OnPointerPressed(object? sender, PointerPressedEventArgs e)
    {
        // Find the PipelineEditorViewModel from the visual tree
        var parent = this.Parent;
        while (parent != null)
        {
            if (parent is UserControl uc && uc.DataContext is PipelineEditorViewModel editorVm)
            {
                if (DataContext is PipelineStepViewModelBase stepVm)
                {
                    editorVm.SelectedStep = stepVm;
                }
                break;
            }
            parent = parent.Parent;
        }

        e.Handled = true;
    }
}