// 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
 
using System.ComponentModel;
using Microsoft.CodeAnalysis.Options;
 
namespace Microsoft.VisualStudio.LanguageServices.Implementation.Options;
 
internal sealed class PerLanguageOptionBinding<T> : INotifyPropertyChanged
{
    private readonly OptionStore _optionStore;
    private readonly PerLanguageOption2<T> _option;
    private readonly string _languageName;
 
    public event PropertyChangedEventHandler PropertyChanged;
 
    public PerLanguageOptionBinding(OptionStore optionStore, PerLanguageOption2<T> option, string languageName)
    {
        _optionStore = optionStore;
        _option = option;
        _languageName = languageName;
 
        _optionStore.OptionChanged += (sender, e) =>
        {
            if (e.Option == _option)
            {
                PropertyChanged?.Raise(this, new PropertyChangedEventArgs(nameof(Value)));
            }
        };
    }
 
    public T Value
    {
        get
        {
            return _optionStore.GetOption<T>(_option, _languageName);
        }
 
        set
        {
            _optionStore.SetOption(_option, _languageName, value);
        }
    }
}