// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
#nullable disable
 
#pragma warning disable RS0030 // Do not used banned APIs: CodeStyleOption<T>
 
using System;
using System.Xml.Linq;
using Roslyn.Utilities;
 
namespace Microsoft.CodeAnalysis.CodeStyle
{
    /// <inheritdoc cref="CodeStyleOption2{T}"/>
    public sealed class CodeStyleOption<T> : ICodeStyleOption, IEquatable<CodeStyleOption<T>>
    {
        private readonly CodeStyleOption2<T> _codeStyleOptionImpl;
        public static CodeStyleOption<T> Default => new(default, NotificationOption.Silent);
 
        internal CodeStyleOption(CodeStyleOption2<T> codeStyleOptionImpl)
            => _codeStyleOptionImpl = codeStyleOptionImpl;
 
        public CodeStyleOption(T value, NotificationOption notification)
            : this(new CodeStyleOption2<T>(value, new NotificationOption2(notification.Severity)))
        {
        }
 
        public T Value
        {
            get => _codeStyleOptionImpl.Value;
 
            [Obsolete("Modifying a CodeStyleOption<T> is not supported.", error: true)]
            set => throw new InvalidOperationException();
        }
 
        object ICodeStyleOption.Value => this.Value;
        NotificationOption2 ICodeStyleOption.Notification => _codeStyleOptionImpl.Notification;
        ICodeStyleOption ICodeStyleOption.WithValue(object value) => new CodeStyleOption<T>((T)value, Notification);
        ICodeStyleOption ICodeStyleOption.WithNotification(NotificationOption2 notification) => new CodeStyleOption<T>(Value, (NotificationOption)notification);
        ICodeStyleOption ICodeStyleOption.AsInternalCodeStyleOption() => _codeStyleOptionImpl;
        ICodeStyleOption ICodeStyleOption.AsPublicCodeStyleOption() => this;
 
        public NotificationOption Notification
        {
            get => (NotificationOption)_codeStyleOptionImpl.Notification;
 
            [Obsolete("Modifying a CodeStyleOption<T> is not supported.", error: true)]
            set => throw new InvalidOperationException();
        }
 
        internal CodeStyleOption2<T> UnderlyingOption => _codeStyleOptionImpl;
 
        public XElement ToXElement() => _codeStyleOptionImpl.ToXElement();
 
        public static CodeStyleOption<T> FromXElement(XElement element)
            => new(CodeStyleOption2<T>.FromXElement(element));
 
        public bool Equals(CodeStyleOption<T> other)
            => _codeStyleOptionImpl.Equals(other?._codeStyleOptionImpl);
 
        public override bool Equals(object obj)
            => obj is CodeStyleOption<T> option &&
               Equals(option);
 
        public override int GetHashCode()
            => _codeStyleOptionImpl.GetHashCode();
    }
}