// 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.
 
using System;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.EditAndContinue;
using Microsoft.CodeAnalysis.Host.Mef;
 
namespace Microsoft.VisualStudio.LanguageServices.Xaml;
 
/// <summary>
/// Exports <see cref="IXamlEditAndContinueSolutionProvider"/> for the XAML Language Service in Visual Studio.
/// </summary>
[Export(typeof(IXamlEditAndContinueSolutionProvider))]
internal sealed class XamlEditAndContinueSolutionProvider : IXamlEditAndContinueSolutionProvider, IDisposable
{
    private readonly IEnumerable<IEditAndContinueSolutionProvider> _editAndContinueSolutionProviders;
 
    [ImportingConstructor]
    [Obsolete(MefConstruction.ImportingConstructorMessage, error: true)]
    public XamlEditAndContinueSolutionProvider([ImportMany] IEnumerable<IEditAndContinueSolutionProvider> editAndContinueSolutionProviders)
    {
        _editAndContinueSolutionProviders = editAndContinueSolutionProviders;
 
        foreach (var provider in _editAndContinueSolutionProviders)
        {
            provider.SolutionCommitted += OnEditAndContinueSolutionCommitted;
        }
    }
 
    public event Action<Solution>? SolutionCommitted;
 
    public void Dispose()
    {
        foreach (var provider in _editAndContinueSolutionProviders)
        {
            provider.SolutionCommitted -= OnEditAndContinueSolutionCommitted;
        }
    }
 
    private void OnEditAndContinueSolutionCommitted(Solution solution)
    {
        SolutionCommitted?.Invoke(solution);
    }
}