// 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 System.Xml.Linq;
using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.Test.Utilities;
using Microsoft.VisualStudio.IntegrationTest.Utilities;
using Roslyn.VisualStudio.IntegrationTests;
using Xunit;
 
namespace Roslyn.VisualStudio.NewIntegrationTests.CSharp
{
    [Trait(Traits.Feature, Traits.Features.AddMissingReference)]
    public class CSharpAddMissingReference : AbstractEditorTest
    {
        private const string FileInLibraryProject1 = @"Public Class Class1
    Inherits System.Windows.Forms.Form
    Public Sub goo()
 
    End Sub
End Class
 
Public Class class2
    Public Sub goo(ByVal x As System.Windows.Forms.Form)
 
    End Sub
 
    Public Event ee As System.Windows.Forms.ColumnClickEventHandler
End Class
 
Public Class class3
    Implements System.Windows.Forms.IButtonControl
 
    Public Property DialogResult() As System.Windows.Forms.DialogResult Implements System.Windows.Forms.IButtonControl.DialogResult
        Get
 
        End Get
        Set(ByVal Value As System.Windows.Forms.DialogResult)
 
        End Set
    End Property
 
    Public Sub NotifyDefault(ByVal value As Boolean) Implements System.Windows.Forms.IButtonControl.NotifyDefault
 
    End Sub
 
    Public Sub PerformClick() Implements System.Windows.Forms.IButtonControl.PerformClick
 
    End Sub
End Class
";
        private const string FileInLibraryProject2 = @"Public Class Class1
    Inherits System.Xml.XmlAttribute
    Sub New()
        MyBase.New(Nothing, Nothing, Nothing, Nothing)
    End Sub
    Sub goo()
 
    End Sub
    Public bar As ClassLibrary3.Class1
End Class
";
        private const string FileInLibraryProject3 = @"Public Class Class1
    Public Enum E
        E1
        E2
    End Enum
 
    Public Function Goo() As ADODB.Recordset
        Dim x As ADODB.Recordset = Nothing
        Return x
    End Function
 
 
End Class
";
        private const string FileInConsoleProject1 = @"
class Program
{
    static void Main(string[] args)
    {
        var y = new ClassLibrary1.class2();
        y.goo(null);
 
        y.ee += (_, __) => { };
 
        var x = new ClassLibrary1.Class1();
 
        ClassLibrary1.class3 z = null;
 
        var a = new ClassLibrary2.Class1();
        var d = a.bar;
    }
}
";
 
        private const string ClassLibrary1Name = "ClassLibrary1";
        private const string ClassLibrary2Name = "ClassLibrary2";
        private const string ClassLibrary3Name = "ClassLibrary3";
        private const string ConsoleProjectName = "ConsoleApplication1";
 
        protected override string LanguageName => LanguageNames.CSharp;
 
        public CSharpAddMissingReference()
        {
        }
 
        public override async Task InitializeAsync()
        {
            await base.InitializeAsync();
            await TestServices.SolutionExplorer.CreateSolutionAsync("ReferenceErrors", solutionElement: XElement.Parse(
                "<Solution>" +
               $"   <Project ProjectName=\"{ClassLibrary1Name}\" ProjectTemplate=\"{WellKnownProjectTemplates.WinFormsApplication}\" Language=\"{LanguageNames.VisualBasic}\">" +
                "       <Document FileName=\"Class1.vb\"><![CDATA[" +
                FileInLibraryProject1 +
                "]]>" +
                "       </Document>" +
                "   </Project>" +
               $"   <Project ProjectName=\"{ClassLibrary2Name}\" ProjectReferences=\"{ClassLibrary3Name}\" ProjectTemplate=\"{WellKnownProjectTemplates.ClassLibrary}\" Language=\"{LanguageNames.VisualBasic}\">" +
                "       <Document FileName=\"Class1.vb\"><![CDATA[" +
               FileInLibraryProject2 +
                "]]>" +
                "       </Document>" +
                "   </Project>" +
               $"   <Project ProjectName=\"{ClassLibrary3Name}\" ProjectTemplate=\"{WellKnownProjectTemplates.ClassLibrary}\" Language=\"{LanguageNames.VisualBasic}\">" +
                "       <Document FileName=\"Class1.vb\"><![CDATA[" +
               FileInLibraryProject3 +
                "]]>" +
                "       </Document>" +
                "   </Project>" +
               $"   <Project ProjectName=\"{ConsoleProjectName}\" ProjectReferences=\"{ClassLibrary1Name};{ClassLibrary2Name}\" ProjectTemplate=\"{WellKnownProjectTemplates.ConsoleApplication}\" Language=\"{LanguageNames.CSharp}\">" +
                "       <Document FileName=\"Program.cs\"><![CDATA[" +
               FileInConsoleProject1 +
                "]]>" +
                "       </Document>" +
               "   </Project>" +
                "</Solution>"), HangMitigatingCancellationToken);
        }
 
        [IdeFact]
        public async Task VerifyAvailableCodeActions()
        {
            var consoleProject = ConsoleProjectName;
            await TestServices.SolutionExplorer.OpenFileAsync(consoleProject, "Program.cs", HangMitigatingCancellationToken);
            await TestServices.Editor.PlaceCaretAsync("y.goo", charsOffset: 1, HangMitigatingCancellationToken);
            await TestServices.Editor.InvokeCodeActionListAsync(HangMitigatingCancellationToken);
            await TestServices.EditorVerifier.CodeActionAsync("Add reference to 'System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.", applyFix: false, cancellationToken: HangMitigatingCancellationToken);
            await TestServices.Editor.PlaceCaretAsync("y.ee", charsOffset: 1, HangMitigatingCancellationToken);
            await TestServices.Editor.InvokeCodeActionListAsync(HangMitigatingCancellationToken);
            await TestServices.EditorVerifier.CodeActionAsync("Add reference to 'System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.", applyFix: false, cancellationToken: HangMitigatingCancellationToken);
            await TestServices.Editor.PlaceCaretAsync("a.bar", charsOffset: 1, HangMitigatingCancellationToken);
            await TestServices.Editor.InvokeCodeActionListAsync(HangMitigatingCancellationToken);
            await TestServices.EditorVerifier.CodeActionAsync("Add project reference to 'ClassLibrary3'.", applyFix: false, cancellationToken: HangMitigatingCancellationToken);
        }
 
        [IdeFact]
        public async Task InvokeSomeFixesInCSharpThenVerifyReferences()
        {
            var consoleProject = ConsoleProjectName;
            await TestServices.SolutionExplorer.OpenFileAsync(consoleProject, "Program.cs", HangMitigatingCancellationToken);
            await TestServices.Editor.PlaceCaretAsync("y.goo", charsOffset: 1, HangMitigatingCancellationToken);
            await TestServices.Editor.InvokeCodeActionListAsync(HangMitigatingCancellationToken);
            await TestServices.EditorVerifier.CodeActionAsync("Add reference to 'System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.", applyFix: true, cancellationToken: HangMitigatingCancellationToken);
            await TestServices.SolutionExplorerVerifier.AssemblyReferencePresentAsync(
                projectName: consoleProject,
                assemblyName: "System.Windows.Forms",
                assemblyVersion: "4.0.0.0",
                assemblyPublicKeyToken: "b77a5c561934e089",
                HangMitigatingCancellationToken);
            await TestServices.Editor.PlaceCaretAsync("a.bar", charsOffset: 1, HangMitigatingCancellationToken);
            await TestServices.Editor.InvokeCodeActionListAsync(HangMitigatingCancellationToken);
            await TestServices.EditorVerifier.CodeActionAsync("Add project reference to 'ClassLibrary3'.", applyFix: true, cancellationToken: HangMitigatingCancellationToken);
            await TestServices.SolutionExplorerVerifier.ProjectReferencePresentAsync(
                projectName: consoleProject,
                referencedProjectName: ClassLibrary3Name,
                HangMitigatingCancellationToken);
        }
    }
}