// 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.Collections.Generic;
using System.Linq;
using Microsoft.CodeAnalysis.CSharp.Symbols;
using Microsoft.CodeAnalysis.CSharp.Syntax;
using Microsoft.CodeAnalysis.DocumentationComments;
using Microsoft.CodeAnalysis.LanguageService;
using Microsoft.CodeAnalysis.Shared.Extensions;
using Microsoft.CodeAnalysis.SignatureHelp;
 
namespace Microsoft.CodeAnalysis.CSharp.SignatureHelp;
 
internal sealed partial class ObjectCreationExpressionSignatureHelpProvider
{
    private static SignatureHelpItem ConvertNormalTypeConstructor(
        IMethodSymbol constructor,
        BaseObjectCreationExpressionSyntax objectCreationExpression,
        SemanticModel semanticModel,
        IStructuralTypeDisplayService structuralTypeDisplayService,
        IDocumentationCommentFormattingService documentationCommentFormattingService)
    {
        var position = objectCreationExpression.SpanStart;
        var item = CreateItem(
            constructor, semanticModel, position,
            structuralTypeDisplayService,
            constructor.IsParams(),
            constructor.GetDocumentationPartsFactory(semanticModel, position, documentationCommentFormattingService),
            GetNormalTypePreambleParts(constructor, semanticModel, position),
            GetSeparatorParts(),
            GetNormalTypePostambleParts(),
            constructor.Parameters.Select(p => Convert(p, semanticModel, position, documentationCommentFormattingService)).ToList());
 
        return item;
    }
 
    private static IList<SymbolDisplayPart> GetNormalTypePreambleParts(
        IMethodSymbol method,
        SemanticModel semanticModel,
        int position)
    {
        var result = new List<SymbolDisplayPart>();
 
        result.AddRange(method.ContainingType.ToMinimalDisplayParts(semanticModel, position));
        result.Add(Punctuation(SyntaxKind.OpenParenToken));
 
        return result;
    }
 
    private static IList<SymbolDisplayPart> GetNormalTypePostambleParts()
        => [Punctuation(SyntaxKind.CloseParenToken)];
}