using UnityExplorer.Inspectors;

namespace UnityExplorer.CacheObject
{
 public class CacheMethod : CacheMember
 {
 public MethodInfo MethodInfo { get; }
 public override Type DeclaringType => MethodInfo.DeclaringType;
 public override bool CanWrite => false;
 public override bool IsStatic => MethodInfo.IsStatic;

 public override bool ShouldAutoEvaluate => false;

 public CacheMethod(MethodInfo mi)
 {
 this.MethodInfo = mi;
 }

 public override void SetInspectorOwner(ReflectionInspector inspector, MemberInfo member)
 {
 base.SetInspectorOwner(inspector, member);

 Arguments = MethodInfo.GetParameters();
 if (MethodInfo.IsGenericMethod)
 GenericArguments = MethodInfo.GetGenericArguments();
 }

 protected override object TryEvaluate()
 {
 try
 {
 MethodInfo methodInfo = MethodInfo;
 if (methodInfo.IsGenericMethod)
 methodInfo = MethodInfo.MakeGenericMethod(Evaluator.TryParseGenericArguments());

 object ret;
 if (HasArguments)
 ret = methodInfo.Invoke(DeclaringInstance, Evaluator.TryParseArguments());
 else
 ret = methodInfo.Invoke(DeclaringInstance, ArgumentUtility.EmptyArgs);
 LastException = null;
 return ret;
 }
 catch (Exception ex)
 {
 LastException = ex;
 return null;
 }
 }

 protected override void TrySetValue(object value) => throw new NotImplementedException("You can't set a method");
 }
}