using System.Globalization;
using System.Windows.Data;
using Brush = System.Windows.Media.Brush;
using Brushes = System.Windows.Media.Brushes;

namespace WebhookServer.Gui.Converters;

public sealed class NullToBoolConverter : IValueConverter
{
    public object Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
        => value is not null;

    public object ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
        => throw new NotSupportedException();
}

public sealed class HookUrlConverter : IMultiValueConverter
{
    public object Convert(object[] values, Type targetType, object? parameter, CultureInfo culture)
    {
        if (values.Length < 2) return "";
        var slug = values[0] as string ?? "";
        var baseUrl = values[1] as string ?? "";
        if (string.IsNullOrEmpty(baseUrl) || string.IsNullOrEmpty(slug)) return "";
        return $"{baseUrl.TrimEnd('/')}/hook/{slug}";
    }

    public object[] ConvertBack(object? value, Type[] targetTypes, object? parameter, CultureInfo culture)
        => throw new NotSupportedException();
}

public sealed class InvertBoolConverter : IValueConverter
{
    public object Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
        => value is bool b && !b;

    public object ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
        => value is bool b && !b;
}

public sealed class StringEqualsConverter : IValueConverter
{
    public object Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
        => string.Equals(value as string, parameter as string, StringComparison.OrdinalIgnoreCase);

    public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
        => (value is bool b && b) ? parameter : Binding.DoNothing;
}

public sealed class BoolToBrushConverter : IValueConverter
{
    public Brush TrueBrush { get; set; } = Brushes.SeaGreen;
    public Brush FalseBrush { get; set; } = Brushes.IndianRed;

    public object Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
        => (value is bool b && b) ? TrueBrush : FalseBrush;

    public object ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
        => throw new NotSupportedException();
}