using RhythmBase.Components;
using System.Diagnostics.CodeAnalysis;

namespace RDTKEditor.Models
{
	internal enum RDPropertyType
	{
		Bool,
		Integer,
		Float,
		Expression,
		IntegerPair,
		FloatPair,
		ExpressionPair,
		String,
		Color,
		Enum,
	}
	internal interface IRDTKPropertyVerifier
	{
		RDPropertyType Type { get; }
		bool TryParse(string value, out object result);
		string ToString(object value);
	}
	internal class RDTKPropertyVerifierEnum(Type enumType) : IRDTKPropertyVerifier
	{
		public RDPropertyType Type => RDPropertyType.Enum;
		public Type EnumType { get; set; } = enumType;
		public bool TryParse(string value, out object result)
		{
			if (Enum.TryParse(EnumType, value, out object v))
			{
				result = v;
				return true;
			}
			result = null;
			return false;
		}
		public string ToString(object value) => value?.ToString() ?? "null";
	}
	internal class RDTKPropertyVerifierBool : IRDTKPropertyVerifier
	{
		public RDPropertyType Type => RDPropertyType.Bool;
		public bool TryParse(string value, out object result)
		{
			var t = bool.TryParse(value, out bool v);
			result = v;
			return t;
		}
		public string ToString(object value) => (bool)value ? "true" : "false";
	}
	internal class RDTKPropertyVerifierDefault : IRDTKPropertyVerifier
	{
		public RDPropertyType Type { get; set; }
		public bool TryParse(string value, out object result)
		{
			result = value;
			return true;
		}
		public string ToString(object value) => value?.ToString() ?? "null";
	}
	internal struct RDTKProperty(object value)
	{
		public event EventHandler<object?>? PropertyChanged = null;
		private object _value = value;
		public string Name { get; set; } = "";
		public string Description { get; set; } = "";
		public RDPropertyType Type { get; set; }
		public IRDTKPropertyVerifier Verifier { get; set; } = new RDTKPropertyVerifierDefault();
		public string Value
		{
			readonly get => Verifier.ToString(_value);
			set
			{
				if (Verifier.TryParse(value, out object result))
				{
					_value = result;
				}
			}
		}
		public void OnChanged(object value)
		{
			if (_value == value) return;
			if (Verifier.TryParse(value?.ToString()??"", out object result))
			{
				_value = result;
				PropertyChanged?.Invoke(this, value);
			}
		}
	}
	internal class RDTKView
	{

		private RDLevel? Level { get; set; }
		public RDTKView()
		{
		}
		public RDTKViewMessage UpdateLevelByPath(string path)
		{
			try
			{
				Level = RDLevel.Read(path);
				return new()
				{
					Message = "关卡已加载。",
					Level = RDTKViewMessageLevel.Info,
					Details = $"关卡路径：{path}",
				};
			}
			catch (Exception ex)
			{
				return new()
				{
					Message = ex.Message,
					Level = RDTKViewMessageLevel.Error,
					Details = ex.StackTrace ?? "",
				};
			}
		}
		public RDTKViewMessage SaveLevelByPath(string path)
		{
			try
			{
				Level?.Write(path);

				return new()
				{
					Message = "关卡已加载。",
					Level = RDTKViewMessageLevel.Info,
					Details = $"关卡路径：{path}",
				};



			}
			catch (Exception ex)
			{
				return new()
				{
					Message = ex.Message,
					Level = RDTKViewMessageLevel.Error,
					Details = ex.StackTrace ?? "",
				};
			}
		}
	}
}