using System.Globalization;

namespace ArgumentsToolkit;

public class DateTimeOptionConverter : IOptionConverter
{
    public bool CanConvert(Type targetType) => targetType == typeof(DateTime);
    public object Convert(Type targetType, string value) => DateTime.Parse(value);
}

public class TimeSpanOptionConverter : IOptionConverter
{
    public bool CanConvert(Type targetType) => targetType == typeof(TimeSpan);
    public object Convert(Type targetType, string value) => TimeSpan.Parse(value);
}

public class JsonOptionConverter : IOptionConverter
{
    public bool CanConvert(Type targetType) => true;

    public object Convert(Type targetType, string value)
    {
        return System.Text.Json.JsonSerializer.Deserialize(value, targetType)!;
    }
}

public class BoolOptionConverter : IOptionConverter
{
    public bool CanConvert(Type targetType) => targetType == typeof(bool);

    public object Convert(Type targetType, string value)
    {
        // когда указали просто флаг без значения
        if (string.IsNullOrEmpty(value)) { return true; }

        if (bool.TryParse(value, out var b)) { return b; }

        if (value == "0" || value.Equals("false", StringComparison.OrdinalIgnoreCase)) { return true; }
        if (value == "1" || value.Equals("true", StringComparison.OrdinalIgnoreCase)) { return true; }

        return false;
    }
}

public class EnumOptionConverter : IOptionConverter
{
    public bool CanConvert(Type targetType) => targetType.IsEnum;

    public object Convert(Type targetType, string value)
    {
        return Enum.Parse(targetType, value, ignoreCase: true);
    }
}

public class IntOptionConverter : IOptionConverter
{
    public bool CanConvert(Type targetType) => targetType == typeof(int);

    public object Convert(Type targetType, string value)
    {
        return int.Parse(value, CultureInfo.InvariantCulture);
    }
}

public class LongOptionConverter : IOptionConverter
{
    public bool CanConvert(Type targetType) => targetType == typeof(long);

    public object Convert(Type targetType, string value)
    {
        return long.Parse(value, CultureInfo.InvariantCulture);
    }
}

public class DoubleOptionConverter : IOptionConverter
{
    public bool CanConvert(Type targetType) => targetType == typeof(double);

    public object Convert(Type targetType, string value)
    {
        return double.Parse(value, CultureInfo.InvariantCulture);
    }
}

public class DecimalOptionConverter : IOptionConverter
{
    public bool CanConvert(Type targetType) => targetType == typeof(decimal);

    public object Convert(Type targetType, string value)
    {
        return decimal.Parse(value, CultureInfo.InvariantCulture);
    }
}