using System.Globalization;
using System.Windows.Data;
using System.Windows.Media;
using System.Windows;

namespace CtrEditor
{
    public class VerticalPositionConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is double altura && double.TryParse(parameter?.ToString(), out double factor))
            {
                return altura * factor;
            }
            return 0;
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }

    public class HalfWidthConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is double width)
            {
                return (width / 2.0) - (double.Parse(parameter.ToString()) / 2.0);
            }
            return 0;
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }

    public class WidthPercentageConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is double width)
            {
                return width * 0.25;
            }
            return 0;
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }

    public class LevelToHeightMultiConverter : IMultiValueConverter
    {
        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
        {
            if (values[0] is float level && values[1] is double containerHeight)
            {
                return containerHeight * (level / 100);
            }
            return 0;
        }

        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }


    public class BrushToColorNameConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if (value is SolidColorBrush brush)
            {
                if (brush == Brushes.Red) return "Rojo";
                if (brush == Brushes.Blue) return "Azul";
                if (brush == Brushes.Black) return "Negro";
                if (brush == Brushes.Green) return "Verde";
                if (brush == Brushes.Gray) return "Gris";
            }
            return "Unknown";
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if (value is string colorName)
            {
                switch (colorName)
                {
                    case "Rojo":
                        return Brushes.Red;
                    case "Azul":
                        return Brushes.Blue;
                    case "Negro":
                        return Brushes.Black;
                    case "Verde":
                        return Brushes.Green;
                    case "Gris":
                        return Brushes.Gray;
                }
            }
            return Brushes.Transparent;
        }
    }

    public class PixelToMeter
    {
        // Instancia privada estática, parte del patrón Singleton
        private static PixelToMeter? _instance;
        public UnitConverter calc = new UnitConverter(0.01f);

        // Propiedad pública estática para acceder a la instancia
        public static PixelToMeter Instance
        {
            get
            {
                if (_instance == null)
                {
                    _instance = new PixelToMeter();
                }
                return _instance;
            }
        }
    }

    public class MeterToPixelConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value == null) return 0; // Aseguramos que el valor no sea nulo

            // Convertimos el valor de entrada en un número flotante
            float meters = System.Convert.ToSingle(value);

            float factor = 1; // Valor por defecto del factor

            // Si el parámetro no es nulo, intentamos convertirlo a float
            if (parameter != null)
            {
                string paramStr = parameter.ToString();

                // Normalizamos el parámetro para asegurar que el punto sea el separador decimal
                paramStr = paramStr.Replace(',', '.');

                // Utilizamos CultureInfo.InvariantCulture para evitar problemas con el separador decimal
                if (float.TryParse(paramStr, NumberStyles.Any, CultureInfo.InvariantCulture, out float parsedFactor))
                {
                    factor = parsedFactor; // Asignamos el factor parseado si la conversión es exitosa
                }
            }

            // Calculamos los píxeles llamando a la instancia de PixelToMeter y multiplicamos por el factor
            return PixelToMeter.Instance.calc.MetersToPixels(meters) * factor;
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value == null) return 0; // Aseguramos que el valor no sea nulo

            // Convertimos el valor de entrada en un número flotante
            float pixels = System.Convert.ToSingle(value);

            float factor = 1; // Valor por defecto del factor

            // Si el parámetro no es nulo, intentamos convertirlo a float
            if (parameter != null)
            {
                string paramStr = parameter.ToString();

                // Normalizamos el parámetro para asegurar que el punto sea el separador decimal
                paramStr = paramStr.Replace(',', '.');

                // Utilizamos CultureInfo.InvariantCulture para evitar problemas con el separador decimal
                if (float.TryParse(paramStr, NumberStyles.Any, CultureInfo.InvariantCulture, out float parsedFactor))
                {
                    factor = parsedFactor; // Asignamos el factor parseado si la conversión es exitosa
                }
            }

            return PixelToMeter.Instance.calc.PixelsToMeters(pixels) * factor;
        }
    }

    public class MarginConverter : IMultiValueConverter
    {
        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
        {
            if (values.Length == 4 &&
                values[0] is double left &&
                values[1] is double top &&
                values[2] is double right &&
                values[3] is double bottom)
            {
                return new Thickness(PixelToMeter.Instance.calc.MetersToPixels((float)left), PixelToMeter.Instance.calc.MetersToPixels((float)top), PixelToMeter.Instance.calc.MetersToPixels((float)right), PixelToMeter.Instance.calc.MetersToPixels((float)bottom));
            }
            return new Thickness();
        }

        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
        {
            throw new NotSupportedException("ConvertBack is not supported.");
        }
    }

    public class DistanceToMarginConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is double distance)
            {
                return new Thickness(0, 0, 0, PixelToMeter.Instance.calc.MetersToPixels((float)distance)); // Ajustar Bottom a 'distance'
            }
            return new Thickness();
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            throw new NotSupportedException("ConvertBack is not supported.");
        }
    }

    public class FloatToFormattedStringConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is float floatValue)
            {
                return floatValue.ToString("0.00", culture); // Formatear a dos decimales
            }
            return value; // Devolver el valor original si no es un float
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is string stringValue && float.TryParse(stringValue, NumberStyles.Float, culture, out float result))
            {
                return result;
            }
            return value; // Devolver el valor original si no se puede convertir
        }
    }

    public class DoubleToFormattedStringConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is double floatValue)
            {
                return floatValue.ToString("0.00", culture); // Formatear a dos decimales
            }
            return value; // Devolver el valor original si no es un float
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is string stringValue && double.TryParse(stringValue, NumberStyles.Float, culture, out double result))
            {
                return result;
            }
            return value; // Devolver el valor original si no se puede convertir
        }
    }


    public class UnitConverter
    {
        // La escala representa cuántos metros hay en un píxel
        public float Scale { get; private set; }


        public UnitConverter(float scale)
        {
            if (scale <= 0)
                throw new ArgumentException("Scale must be greater than zero.");

            Scale = scale;
        }

        // Convierte una distancia en metros a píxeles
        public float MetersToPixels(float meters)
        {
            return meters / Scale;
        }

        // Convierte una distancia en píxeles a metros
        public float PixelsToMeters(float pixels)
        {
            return pixels * Scale;
        }

        // Configurar o ajustar la escala
        public void SetScale(float newScale)
        {
            if (newScale <= 0)
                throw new ArgumentException("Scale must be greater than zero.");

            Scale = newScale;
        }
    }
}