// 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.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.Test.Utilities;
using Roslyn.LanguageServer.Protocol;
using Roslyn.Test.Utilities;
using Xunit;
using Xunit.Abstractions;
using LSP = Roslyn.LanguageServer.Protocol;
 
namespace Microsoft.CodeAnalysis.LanguageServer.UnitTests.OnAutoInsert;
 
[Trait(Traits.Feature, Traits.Features.AutomaticCompletion)]
public sealed partial class OnAutoInsertTests(ITestOutputHelper testOutputHelper) : AbstractOnAutoInsertTests(testOutputHelper)
{
    [Theory, CombinatorialData]
    public Task OnAutoInsert_CommentCharacter(bool mutatingLspWorkspace)
        => VerifyCSharpMarkupAndExpected("/", """
            class A
            {
                ///{|type:|}
                void M()
                {
                }
            }
            """, """
            class A
            {
                /// <summary>
                /// $0
                /// </summary>
                void M()
                {
                }
            }
            """, mutatingLspWorkspace);
 
    [Theory, CombinatorialData]
    public Task OnAutoInsert_CommentCharacter_WithComment(bool mutatingLspWorkspace)
        => VerifyCSharpMarkupAndExpected("/", """
            class A
            {
                ///{|type:|} This is an existing comment
                void M()
                {
                }
            }
            """, """
            class A
            {
                /// <summary>
                /// $0This is an existing comment
                /// </summary>
                void M()
                {
                }
            }
            """, mutatingLspWorkspace);
 
    [Theory, CombinatorialData]
    public Task OnAutoInsert_CommentCharacter_WithComment_NoSpace(bool mutatingLspWorkspace)
        => VerifyCSharpMarkupAndExpected("/", """
            class A
            {
                ///{|type:|}This is an existing comment
                void M()
                {
                }
            }
            """, """
            class A
            {
                /// <summary>
                /// $0This is an existing comment
                /// </summary>
                void M()
                {
                }
            }
            """, mutatingLspWorkspace);
 
    [Theory, CombinatorialData]
    public Task OnAutoInsert_CommentCharacter_VB(bool mutatingLspWorkspace)
        => VerifyCSharpMarkupAndExpected("'", """
            Class A
                '''{|type:|}
                Sub M()
                End Sub
            End Class
            """, """
            Class A
                ''' <summary>
                ''' $0
                ''' </summary>
                Sub M()
                End Sub
            End Class
            """, mutatingLspWorkspace, languageName: LanguageNames.VisualBasic);
 
    [Theory, CombinatorialData]
    public Task OnAutoInsert_ParametersAndReturns(bool mutatingLspWorkspace)
        => VerifyCSharpMarkupAndExpected("/", """
            class A
            {
                ///{|type:|}
                string M(int foo, bool bar)
                {
                }
            }
            """, """
            class A
            {
                /// <summary>
                /// $0
                /// </summary>
                /// <param name="foo"></param>
                /// <param name="bar"></param>
                /// <returns></returns>
                string M(int foo, bool bar)
                {
                }
            }
            """, mutatingLspWorkspace);
 
    [Theory, CombinatorialData]
    public Task OnAutoInsert_CommentCharacterInsideMethod_Ignored(bool mutatingLspWorkspace)
        => VerifyNoResult("/", """
            class A
            {
                void M()
                {
                    ///{|type:|}
                }
            }
            """, mutatingLspWorkspace);
 
    [Theory, CombinatorialData]
    public Task OnAutoInsert_VisualBasicCommentCharacter_Ignored(bool mutatingLspWorkspace)
        => VerifyNoResult("'", """
            class A
            {
                '''{|type:|}
                void M()
                {
                }
            }
            """, mutatingLspWorkspace);
 
    [Theory, CombinatorialData]
    public Task OnAutoInsert_EnterKey(bool mutatingLspWorkspace)
        => VerifyCSharpMarkupAndExpected("\n", """
            class A
            {
                /// <summary>
                /// Foo
                /// </summary>
            {|type:|}
                void M()
                {
                }
            }
            """, """
            class A
            {
                /// <summary>
                /// Foo
                /// </summary>
                /// $0
                void M()
                {
                }
            }
            """, mutatingLspWorkspace);
 
    [Theory, CombinatorialData]
    public Task OnAutoInsert_EnterKey2(bool mutatingLspWorkspace)
        => VerifyCSharpMarkupAndExpected("\n", """
            class A
            {
                /// <summary>
                /// Foo
            {|type:|}
                /// </summary>
                void M()
                {
                }
            }
            """, """
            class A
            {
                /// <summary>
                /// Foo
                /// $0
                /// </summary>
                void M()
                {
                }
            }
            """, mutatingLspWorkspace);
 
    [Theory, CombinatorialData]
    public Task OnAutoInsert_EnterKey3(bool mutatingLspWorkspace)
        => VerifyCSharpMarkupAndExpected("\n", """
            class A
            {
                ///
            {|type:|}
                string M(int foo, bool bar)
                {
                }
            }
            """, """
            class A
            {
                /// <summary>
                /// $0
                /// </summary>
                /// <param name="foo"></param>
                /// <param name="bar"></param>
                /// <returns></returns>
                string M(int foo, bool bar)
                {
                }
            }
            """, mutatingLspWorkspace);
 
    [Theory, CombinatorialData]
    public Task OnAutoInsert_BraceFormatting(bool mutatingLspWorkspace)
        => VerifyCSharpMarkupAndExpected("\n", """
            class A
            {
                void M() {{|type:|}
                }
            }
            """, """
            class A
            {
                void M()
                {
                    $0
                }
            }
            """, mutatingLspWorkspace, useVSCapabilities: false);
 
    [Theory, CombinatorialData]
    public Task OnAutoInsert_BraceFormattingWithTabs(bool mutatingLspWorkspace)
        => VerifyCSharpMarkupAndExpected("\n", """
            class A
            {
                void M() {{|type:|}
                }
            }
            """, """
            class A
            {
                void M()
            	{
            		$0
            	}
            }
            """, mutatingLspWorkspace, insertSpaces: false, tabSize: 4, useVSCapabilities: false);
 
    [Theory, CombinatorialData]
    public Task OnAutoInsert_BraceFormattingInsideMethod(bool mutatingLspWorkspace)
        => VerifyCSharpMarkupAndExpected("\n", """
            class A
            {
                void M()
                {
                    if (true) {{|type:|}
                    }
                }
            }
            """, """
            class A
            {
                void M()
                {
                    if (true)
                    {
                        $0
                    }
                }
            }
            """, mutatingLspWorkspace, useVSCapabilities: false);
 
    [Theory, CombinatorialData]
    public Task OnAutoInsert_BraceFormattingNoResultInInterpolation(bool mutatingLspWorkspace)
        => VerifyNoResult("\n", """
            class A
            {
                void M()
                {
                    var s = $"Hello {{|type:|}
                    }
            }
            """, mutatingLspWorkspace, useVSCapabilities: false);
 
    [Theory, CombinatorialData, WorkItem("https://devdiv.visualstudio.com/DevDiv/_workitems/edit/1260219")]
    public Task OnAutoInsert_BraceFormattingDoesNotInsertExtraEmptyLines(bool mutatingLspWorkspace)
        => VerifyNoResult("\n", """
            class A
            {
                void M()
                {
 
                    {|type:|}
                }
            }
            """, mutatingLspWorkspace, useVSCapabilities: false);
 
    [Theory, CombinatorialData, WorkItem("https://devdiv.visualstudio.com/DevDiv/_workitems/edit/1260219")]
    public Task OnAutoInsert_BraceFormattingDoesNotMoveCaretOnEnterInsideBraces(bool mutatingLspWorkspace)
        => VerifyNoResult("\n", """
            class A
            {
                void M()
                {{|type:|}
 
 
                }
            }
            """, mutatingLspWorkspace, useVSCapabilities: false);
 
    [Theory, CombinatorialData]
    public Task OnAutoInsert_BraceFormattingOnNewLine(bool mutatingLspWorkspace)
        => VerifyCSharpMarkupAndExpected("\n", """
            class A
            {
                void M() {{|type:|}
                    
                }
            }
            """, """
            class A
            {
                void M()
                {
                    $0
                }
            }
            """, mutatingLspWorkspace, useVSCapabilities: false);
 
    [Theory, CombinatorialData]
    public Task OnAutoInsert_NoBraceFormattingForVS(bool mutatingLspWorkspace)
        => VerifyNoResult("\n", """
            class A
            {
                void M() {{|type:|}
                }
            }
            """, mutatingLspWorkspace, useVSCapabilities: true);
 
    [Theory, CombinatorialData]
    public Task OnAutoInsert_BraceFormattingForRazorVS(bool mutatingLspWorkspace, bool useVSCapabilities)
        => VerifyCSharpMarkupAndExpected("\n", """
            class A
            {
                void M() {{|type:|}
                }
            }
            """, """
            class A
            {
                void M()
                {
                    $0
                }
            }
            """, mutatingLspWorkspace, serverKind: WellKnownLspServerKinds.RazorLspServer, useVSCapabilities: useVSCapabilities);
}