// 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 Microsoft.CodeAnalysis.Editing;
using Microsoft.CodeAnalysis.LanguageService;
using Microsoft.CodeAnalysis.Snippets.SnippetProviders;
using Microsoft.CodeAnalysis.Text;
 
namespace Microsoft.CodeAnalysis.Snippets
{
    internal abstract class AbstractIfSnippetProvider : AbstractConditionalBlockSnippetProvider
    {
        public override string Identifier => "if";
 
        public override string Description => FeaturesResources.if_statement;
 
        public override ImmutableArray<string> AdditionalFilterTexts { get; } = ImmutableArray.Create("statement");
 
        protected override Func<SyntaxNode?, bool> GetSnippetContainerFunction(ISyntaxFacts syntaxFacts) => syntaxFacts.IsIfStatement;
 
        protected override TextChange GenerateSnippetTextChange(Document document, int position)
        {
            var generator = SyntaxGenerator.GetGenerator(document);
            var ifStatement = generator.IfStatement(generator.TrueLiteralExpression(), Array.Empty<SyntaxNode>());
 
            return new TextChange(TextSpan.FromBounds(position, position), ifStatement.ToFullString());
        }
    }
}