// 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.Threading.Tasks;
using Microsoft.CodeAnalysis.CodeStyle;
using Microsoft.CodeAnalysis.CSharp.CodeStyle;
using Microsoft.CodeAnalysis.CSharp.NewLines.ConstructorInitializerPlacement;
using Microsoft.CodeAnalysis.Editor.UnitTests.CodeActions;
using Xunit;
 
namespace Microsoft.CodeAnalysis.Editor.CSharp.UnitTests.NewLines.ConstructorInitializerPlacement
{
    using Verify = CSharpCodeFixVerifier<
        ConstructorInitializerPlacementDiagnosticAnalyzer,
        ConstructorInitializerPlacementCodeFixProvider>;
 
    public class ConstructorInitializerPlacementTests
    {
        [Fact]
        public async Task TestNotWithOptionOff()
        {
            var code =
                """
                class C
                {
                    public C() :
                        base()
                    {
                    }
                }
                """;
 
            await new Verify.Test
            {
                TestCode = code,
                FixedCode = code,
                Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterColonInConstructorInitializer, CodeStyleOption2.TrueWithSilentEnforcement } }
            }.RunAsync();
        }
 
        [Fact]
        public async Task TestSimpleCase()
        {
            var code =
                """
                class C
                {
                    public C() [|:|]
                        base()
                    {
                    }
                }
                """;
 
            var fixedCode =
                """
                class C
                {
                    public C()
                        : base()
                    {
                    }
                }
                """;
 
            await new Verify.Test
            {
                TestCode = code,
                FixedCode = fixedCode,
                Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterColonInConstructorInitializer, CodeStyleOption2.FalseWithSuggestionEnforcement } }
            }.RunAsync();
        }
 
        [Fact]
        public async Task TestNotOnSameLine1()
        {
            var code =
                """
                class C
                {
                    public C() : base()
                    {
                    }
                }
                """;
 
            await new Verify.Test
            {
                TestCode = code,
                FixedCode = code,
                Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterColonInConstructorInitializer, CodeStyleOption2.FalseWithSuggestionEnforcement } }
            }.RunAsync();
        }
 
        [Fact]
        public async Task TestNotOnSameLine2()
        {
            var code =
                """
                class C
                {
                    public C()
                        : base()
                    {
                    }
                }
                """;
 
            await new Verify.Test
            {
                TestCode = code,
                FixedCode = code,
                Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterColonInConstructorInitializer, CodeStyleOption2.FalseWithSuggestionEnforcement } }
            }.RunAsync();
        }
 
        [Fact]
        public async Task TestNotWithColonTrailingComment()
        {
            var code =
                """
                class C
                {
                    public C() : //comment
                        base()
                    {
                    }
                }
                """;
 
            await new Verify.Test
            {
                TestCode = code,
                FixedCode = code,
                Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterColonInConstructorInitializer, CodeStyleOption2.FalseWithSuggestionEnforcement } }
            }.RunAsync();
        }
 
        [Fact]
        public async Task TestWithCloseParenTrailingComment1()
        {
            var code =
                """
                class C
                {
                    public C() /*comment*/ [|:|]
                        base()
                    {
                    }
                }
                """;
            var fixedCode =
                """
                class C
                {
                    public C() /*comment*/ 
                        : base()
                    {
                    }
                }
                """;
 
            await new Verify.Test
            {
                TestCode = code,
                FixedCode = fixedCode,
                Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterColonInConstructorInitializer, CodeStyleOption2.FalseWithSuggestionEnforcement } }
            }.RunAsync();
        }
 
        [Fact]
        public async Task TestWithColonLeadingComment1()
        {
            var code =
                """
                class C
                {
                    public C()
                        // comment
                        [|:|]
                        base()
                    {
                    }
                }
                """;
            var fixedCode =
                """
                class C
                {
                    public C()
                        // comment
                        
                        : base()
                    {
                    }
                }
                """;
 
            await new Verify.Test
            {
                TestCode = code,
                FixedCode = fixedCode,
                Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterColonInConstructorInitializer, CodeStyleOption2.FalseWithSuggestionEnforcement } }
            }.RunAsync();
        }
 
        [Fact]
        public async Task TestWithLeadingComment()
        {
            var code =
                """
                class C
                {
                    public C() [|:|]
                        // comment
                        base()
                    {
                    }
                }
                """;
            var fixedCode =
                """
                class C
                {
                    public C()
                        // comment
                        : base()
                    {
                    }
                }
                """;
 
            await new Verify.Test
            {
                TestCode = code,
                FixedCode = fixedCode,
                Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterColonInConstructorInitializer, CodeStyleOption2.FalseWithSuggestionEnforcement } }
            }.RunAsync();
        }
 
        [Fact]
        public async Task TestWithLeadingDirective()
        {
            var code =
                """
                class C
                {
                    public C() :
                #if true
                        base()
                    {
                    }
                #endif
                }
                """;
 
            await new Verify.Test
            {
                TestCode = code,
                FixedCode = code,
                Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterColonInConstructorInitializer, CodeStyleOption2.FalseWithSuggestionEnforcement } }
            }.RunAsync();
        }
    }
}