using System;
using System.ComponentModel;
using System.Globalization;
 
#nullable disable
namespace Microsoft.Maui.Controls
{
	public class FlowDirectionConverter : TypeConverter
	{
		public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType)
			=> sourceType == typeof(string);
 
		public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType)
			=> destinationType == typeof(string);
 
		public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
		{
			var strValue = value?.ToString();
 
			if (strValue != null)
			{
				if (Enum.TryParse(strValue, out FlowDirection direction))
					return direction;
 
				if (strValue.Equals("ltr", StringComparison.OrdinalIgnoreCase))
					return FlowDirection.LeftToRight;
				if (strValue.Equals("rtl", StringComparison.OrdinalIgnoreCase))
					return FlowDirection.RightToLeft;
				if (strValue.Equals("inherit", StringComparison.OrdinalIgnoreCase))
					return FlowDirection.MatchParent;
			}
			throw new InvalidOperationException($"Cannot convert \"{strValue}\" into {typeof(FlowDirection)}");
		}
 
		public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
		{
			if (value is not FlowDirection direction)
				throw new NotSupportedException();
			return direction.ToString();
		}
	}
}