// 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.Composition;
using System.Text.Json;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.CodeActions;
using Microsoft.CodeAnalysis.CodeFixes;
using Microsoft.CodeAnalysis.CodeRefactorings;
using Microsoft.CodeAnalysis.Host.Mef;
using Microsoft.CodeAnalysis.Options;
using Roslyn.LanguageServer.Protocol;
using Roslyn.Utilities;
 
namespace Microsoft.CodeAnalysis.LanguageServer.Handler.CodeActions;
 
[ExportCSharpVisualBasicStatelessLspService(typeof(CodeActionFixAllResolveHandler)), Shared]
[Method("codeAction/resolveFixAll")]
[method: ImportingConstructor]
[method: Obsolete(MefConstruction.ImportingConstructorMessage, error: true)]
internal sealed class CodeActionFixAllResolveHandler(
    ICodeFixService codeFixService,
    ICodeRefactoringService codeRefactoringService,
    IGlobalOptionService globalOptions) : ILspServiceDocumentRequestHandler<RoslynFixAllCodeAction, RoslynFixAllCodeAction>
{
    private readonly ICodeFixService _codeFixService = codeFixService;
    private readonly ICodeRefactoringService _codeRefactoringService = codeRefactoringService;
    private readonly IGlobalOptionService _globalOptions = globalOptions;
 
    public bool MutatesSolutionState => false;
 
    public bool RequiresLSPSolution => true;
 
    public TextDocumentIdentifier GetTextDocumentIdentifier(RoslynFixAllCodeAction request)
        => GetCodeActionResolveData(request).TextDocument;
 
    public async Task<RoslynFixAllCodeAction> HandleRequestAsync(RoslynFixAllCodeAction request, RequestContext context, CancellationToken cancellationToken)
    {
        var document = context.GetRequiredDocument();
        Contract.ThrowIfNull(request.Data);
        var data = GetCodeActionResolveData(request);
        Assumes.Present(data);
 
        var codeActions = await CodeActionHelpers.GetCodeActionsAsync(
            document,
            data.Range,
            _codeFixService,
            _codeRefactoringService,
            request.Scope,
            cancellationToken).ConfigureAwait(false);
 
        Contract.ThrowIfNull(data.CodeActionPath);
        var codeActionToResolve = CodeActionHelpers.GetCodeActionToResolve(data.CodeActionPath, codeActions, isFixAllAction: true);
 
        var fixAllCodeAction = (FixAllCodeAction)codeActionToResolve;
        Contract.ThrowIfNull(fixAllCodeAction);
 
        var operations = await fixAllCodeAction.GetOperationsAsync(document.Project.Solution, CodeAnalysisProgress.None, cancellationToken).ConfigureAwait(false);
        var edit = await CodeActionResolveHelper.GetCodeActionResolveEditsAsync(context, data, operations, cancellationToken).ConfigureAwait(false);
 
        request.Edit = edit;
        return request;
    }
 
    private static CodeActionResolveData GetCodeActionResolveData(RoslynFixAllCodeAction request)
    {
        var resolveData = JsonSerializer.Deserialize<CodeActionResolveData>((JsonElement)request.Data!, ProtocolConversions.LspJsonSerializerOptions);
        Contract.ThrowIfNull(resolveData, "Missing data for fix all code action resolve request");
        return resolveData;
 
    }
}