// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.

using System.Collections.Generic;
using System.Diagnostics;
using System.Globalization;
using System.Reflection.Context.Custom;

namespace System.Reflection.Context.Virtual
{
    internal sealed partial class VirtualPropertyInfo
    {
        private sealed class PropertySetter : PropertySetterBase
        {
            private readonly Action<object, object?> _setter;
            private readonly ParameterInfo _valueParameter;
            private readonly IEnumerable<Attribute> _attributes;

            public PropertySetter(VirtualPropertyBase property, Action<object, object?> setter, IEnumerable<Attribute>? setterAttributes)
                : base(property)
            {
                Debug.Assert(null != setter);

                _setter = setter;
                _valueParameter = new VirtualParameter(this, property.PropertyType, "value", 0);
                _attributes = setterAttributes ?? CollectionServices.Empty<Attribute>();
            }

            public override ParameterInfo[] GetParameters()
            {
                return new ParameterInfo[] { _valueParameter };
            }

            public override object? Invoke(object? obj, BindingFlags invokeAttr, Binder? binder, object?[]? parameters, CultureInfo? culture)
            {
                // invokeAttr, binder, and culture are ignored, similar to what runtime reflection does with the default binder.

                if (parameters == null || parameters.Length != 1)
                    throw new TargetParameterCountException();

                object? value = parameters[0];

                if (obj == null)
                    throw new TargetException(SR.Target_InstanceMethodRequiresTarget);

                if (!ReflectedType!.IsInstanceOfType(obj))
                    throw new TargetException(SR.Target_ObjectTargetMismatch);

                if (ReturnType.IsInstanceOfType(value))
                    throw new ArgumentException(SR.Format(SR.Argument_ObjectArgumentMismatch, value.GetType(), ReturnType));

                _setter(obj, value);

                return null;
            }

            public override object[] GetCustomAttributes(Type attributeType, bool inherit)
            {
                return CollectionServices.IEnumerableToArray(AttributeUtils.FilterCustomAttributes(_attributes, attributeType), attributeType);
            }

            public override object[] GetCustomAttributes(bool inherit)
            {
                return CollectionServices.IEnumerableToArray(_attributes, typeof(Attribute));
            }

            public override IList<CustomAttributeData> GetCustomAttributesData()
            {
                return CollectionServices.Empty<CustomAttributeData>();
            }

            public override bool IsDefined(Type attributeType, bool inherit)
            {
                return GetCustomAttributes(attributeType, inherit).Length > 0;
            }
        }
    }
}