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

namespace DesktopBot.Converters
{
    /// <summary>
    /// Converter che restituisce lo stile NavItemActive se il tab corrisponde,
    /// altrimenti NavItem (usato nella barra di navigazione laterale)
    /// </summary>
    public class NavStyleConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            // Non restituiamo lo stile direttamente (non è possibile in WPF in questo modo)
            // Restituiamo true se il tab selezionato corrisponde al parametro
            return value?.ToString() == parameter?.ToString();
        }

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

    /// <summary>
    /// Converter per i colori dei log in base al livello
    /// </summary>
    public class LogLevelColorConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is Models.LogLevel level)
            {
                if (level == Models.LogLevel.Success) return "#FF00E676";
                if (level == Models.LogLevel.Error)   return "#FFFF1744";
                if (level == Models.LogLevel.Warning) return "#FFFFC107";
            }

            return "#FF8888A0";
        }

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

    /// <summary>Inverte un valore booleano (usato per il radio button Live/Paper)</summary>
    public class InverseBoolConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is bool b) return !b;
            return value;
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is bool b) return !b;
            return value;
        }
    }

    /// <summary>bool → Visibility (true=Visible, false=Collapsed)</summary>
    public class BoolVisibilityConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
            => value is bool b && b ? Visibility.Visible : Visibility.Collapsed;

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

    /// <summary>bool → Visibility invertito (true=Collapsed, false=Visible)</summary>
    public class InvertedBoolVisibilityConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
            => value is bool b && b ? Visibility.Collapsed : Visibility.Visible;

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

    /// <summary>null → Visible, not-null → Collapsed  (placeholder "nessun bot selezionato")</summary>
    public class NullToVisibilityConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
            => value == null ? Visibility.Visible : Visibility.Collapsed;

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

    /// <summary>not-null → Visible, null → Collapsed  (mostra pannello dettaglio)</summary>
    public class NotNullToVisibilityConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
            => value != null ? Visibility.Visible : Visibility.Collapsed;

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

    /// <summary>stringa vuota/null → Visible (placeholder search), non-vuota → Collapsed</summary>
    public class EmptyStringToVisibilityConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
            => string.IsNullOrEmpty(value as string) ? Visibility.Visible : Visibility.Collapsed;

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

    /// <summary>int 0 → Collapsed, >0 → Visible (usato per nascondere la lista risultati vuota)</summary>
    public class ZeroToCollapsedConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is int i) return i > 0 ? Visibility.Visible : Visibility.Collapsed;
            return Visibility.Collapsed;
        }

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

    /// <summary>bool IsProfit → verde o rosso per P&amp;L</summary>
    public class ProfitColorConverter : IValueConverter
    {
        private static readonly SolidColorBrush Green = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#00E676"));
        private static readonly SolidColorBrush Red   = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#FF1744"));

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

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

    /// <summary>
    /// TradingStrategy → Visibility.
    /// ConverterParameter = nome strategia (es. "EMA_CROSSOVER").
    /// Visible se la strategia attiva corrisponde al parametro, Collapsed altrimenti.
    /// Usato nei pannelli parametri dinamici per-strategia di BotsManagerView.
    /// </summary>
    public class StrategyToVisibilityConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value == null || parameter == null) return Visibility.Collapsed;
            return value.ToString() == parameter.ToString() ? Visibility.Visible : Visibility.Collapsed;
        }

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

    /// <summary>
    /// Converter per il colore dell'indicatore di streaming.
    /// True (streaming attivo) → Verde, False (fermo) → Grigio
    /// </summary>
    public class BoolToStreamColorConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is bool isStreaming && isStreaming)
                return Colors.LimeGreen; // #00E676
            return Colors.Gray; // #808080
        }

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