// 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.Immutable;
using System.Composition;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.CodeFixes;
using Microsoft.CodeAnalysis.CSharp.UseNameofInAttribute;
using Microsoft.CodeAnalysis.Diagnostics;
using Microsoft.CodeAnalysis.Editing;
using Microsoft.CodeAnalysis.Host.Mef;
using Microsoft.CodeAnalysis.Shared.Extensions;

namespace Microsoft.CodeAnalysis.CSharp.CodeFixes.UseNameofInAttribute;

[ExportCodeFixProvider(LanguageNames.CSharp, Name = PredefinedCodeFixProviderNames.UseNameofInAttribute), Shared]
[method: ImportingConstructor]
[method: Obsolete(MefConstruction.ImportingConstructorMessage, error: true)]
internal sealed class CSharpUseNameofInAttributeCodeFixProvider() : SyntaxEditorBasedCodeFixProvider
{
    public override ImmutableArray<string> FixableDiagnosticIds { get; } = [IDEDiagnosticIds.UseNameofInAttributeDiagnosticId];

    public override async Task RegisterCodeFixesAsync(CodeFixContext context)
    {
        RegisterCodeFix(
            context,
            CSharpAnalyzersResources.Use_nameof,
            nameof(CSharpAnalyzersResources.Use_nameof));
    }

    protected override async Task FixAllAsync(
        Document document,
        ImmutableArray<Diagnostic> diagnostics,
        SyntaxEditor editor,
        CancellationToken cancellationToken)
    {
        foreach (var diagnostic in diagnostics)
        {
            var expression = diagnostic.Location.FindNode(getInnermostNodeForTie: true, cancellationToken);
            var name = diagnostic.Properties[CSharpUseNameofInAttributeDiagnosticAnalyzer.NameKey];
            Contract.ThrowIfNull(name);

            editor.ReplaceNode(
                expression,
                editor.Generator.NameOfExpression(editor.Generator.IdentifierName(name)).WithTriviaFrom(expression));
        }
    }
}