﻿// 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.

#nullable disable

using System;
using System.Collections.Immutable;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.CodeActions;
using Microsoft.CodeAnalysis.CodeFixes;
using Microsoft.CodeAnalysis.CodeFixes.Configuration.ConfigureCodeStyle;
using Microsoft.CodeAnalysis.CSharp.Diagnostics.TypeStyle;
using Microsoft.CodeAnalysis.Diagnostics;
using Microsoft.CodeAnalysis.Editor.UnitTests.Diagnostics;
using Microsoft.CodeAnalysis.Editor.UnitTests.Workspaces;
using Microsoft.CodeAnalysis.Test.Utilities;
using Roslyn.Test.Utilities;
using Xunit;

namespace Microsoft.CodeAnalysis.Editor.CSharp.UnitTests.Diagnostics.Configuration.ConfigureCodeStyle
{
    public abstract partial class MultipleCodeStyleOptionConfigurationTests : AbstractSuppressionDiagnosticTest
    {
        protected abstract int OptionIndex { get; }

        protected override ImmutableArray<CodeAction> MassageActions(ImmutableArray<CodeAction> actions)
        {
            Assert.Single(actions);
            var nestedActionForOptionIndex = ((AbstractConfigurationActionWithNestedActions)actions[0]).NestedCodeActions[OptionIndex];
            return base.MassageActions(ImmutableArray.Create(nestedActionForOptionIndex));
        }

        protected internal override string GetLanguage() => LanguageNames.CSharp;

        protected override ParseOptions GetScriptOptions() => Options.Script;

        internal override Tuple<DiagnosticAnalyzer, IConfigurationFixProvider> CreateDiagnosticProviderAndFixer(Workspace workspace)
        {
            /*
                csharp_style_var_elsewhere
                csharp_style_var_for_built_in_types
                csharp_style_var_when_type_is_apparent                
             */
            return new Tuple<DiagnosticAnalyzer, IConfigurationFixProvider>(
                        new CSharpUseExplicitTypeDiagnosticAnalyzer(), new ConfigureCodeStyleOptionCodeFixProvider());
        }

        [Trait(Traits.Feature, Traits.Features.CodeActionsConfiguration)]
        public class VarElsewhere_TrueConfigurationTests : MultipleCodeStyleOptionConfigurationTests
        {
            protected override int OptionIndex => 0;

            protected override int CodeActionIndex => 0;

            [ConditionalFact(typeof(IsEnglishLocal))]
            public async Task ConfigureEditorconfig_Empty_True()
            {
                var input = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
        <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        [|var obj = new Program1();|]
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig""></AnalyzerConfigDocument>
    </Project>
</Workspace>";

                var expected = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
         <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        var obj = new Program1();
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig"">[*.cs]

# IDE0008: Use explicit type
csharp_style_var_elsewhere = true
</AnalyzerConfigDocument>
    </Project>
</Workspace>";

                await TestInRegularAndScriptAsync(input, expected, CodeActionIndex);
            }

            [Fact]
            public async Task ConfigureEditorconfig_RuleExists_True()
            {
                var input = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
        <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        [|var obj = new Program1();|]
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig"">[*.cs]    # Comment1
csharp_style_var_elsewhere = false:suggestion    ; Comment2
csharp_style_var_for_built_in_types = true:suggestion    ; Comment3
</AnalyzerConfigDocument>
    </Project>
</Workspace>";

                var expected = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
         <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        var obj = new Program1();
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig"">[*.cs]    # Comment1
csharp_style_var_elsewhere = true:suggestion    ; Comment2
csharp_style_var_for_built_in_types = true:suggestion    ; Comment3
</AnalyzerConfigDocument>
    </Project>
</Workspace>";

                await TestInRegularAndScriptAsync(input, expected, CodeActionIndex);
            }

            [Fact]
            public async Task ConfigureEditorconfig_RuleExists_True_WithoutSeveritySuffix()
            {
                var input = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
        <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        [|var obj = new Program1();|]
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig"">[*.cs]    # Comment1
csharp_style_var_elsewhere = false    ; Comment2
csharp_style_var_for_built_in_types = true    ; Comment3
</AnalyzerConfigDocument>
    </Project>
</Workspace>";

                var expected = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
         <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        var obj = new Program1();
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig"">[*.cs]    # Comment1
csharp_style_var_elsewhere = true    ; Comment2
csharp_style_var_for_built_in_types = true    ; Comment3
</AnalyzerConfigDocument>
    </Project>
</Workspace>";

                await TestInRegularAndScriptAsync(input, expected, CodeActionIndex);
            }

            [ConditionalFact(typeof(IsEnglishLocal))]
            public async Task ConfigureEditorconfig_InvalidHeader_True()
            {
                var input = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
        <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        [|var obj = new Program1();|]
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig"">[*.vb]
csharp_style_var_elsewhere = false:suggestion
</AnalyzerConfigDocument>
    </Project>
</Workspace>";

                var expected = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
        <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        var obj = new Program1();
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig"">[*.vb]
csharp_style_var_elsewhere = false:suggestion

[*.cs]

# IDE0008: Use explicit type
csharp_style_var_elsewhere = true
</AnalyzerConfigDocument>
    </Project>
</Workspace>";

                await TestInRegularAndScriptAsync(input, expected, CodeActionIndex);
            }

            [Fact]
            public async Task ConfigureEditorconfig_MaintainSeverity_True()
            {
                var input = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
        <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        [|var obj = new Program1();|]
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig"">[*.{vb,cs}]
csharp_style_var_elsewhere = false:suggestion
</AnalyzerConfigDocument>
    </Project>
</Workspace>";

                var expected = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
         <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        var obj = new Program1();
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig"">[*.{vb,cs}]
csharp_style_var_elsewhere = true:suggestion
</AnalyzerConfigDocument>
    </Project>
</Workspace>";

                await TestInRegularAndScriptAsync(input, expected, CodeActionIndex);
            }

            [ConditionalFact(typeof(IsEnglishLocal))]
            public async Task ConfigureEditorconfig_InvalidRule_True()
            {
                var input = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
        <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        [|var obj = new Program1();|]
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig"">[*.cs]
csharp_style_var_when_type_is_apparent_error = false:suggestion
</AnalyzerConfigDocument>
    </Project>
</Workspace>";

                var expected = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
        <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        var obj = new Program1();
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig"">[*.cs]
csharp_style_var_when_type_is_apparent_error = false:suggestion

# IDE0008: Use explicit type
csharp_style_var_elsewhere = true
</AnalyzerConfigDocument>
    </Project>
</Workspace>";

                await TestInRegularAndScriptAsync(input, expected, CodeActionIndex);
            }
        }

        [Trait(Traits.Feature, Traits.Features.CodeActionsConfiguration)]
        public class VarForBuiltInTypes_FalseConfigurationTests : MultipleCodeStyleOptionConfigurationTests
        {
            protected override int OptionIndex => 1;

            protected override int CodeActionIndex => 1;

            [ConditionalFact(typeof(IsEnglishLocal))]
            public async Task ConfigureEditorconfig_Empty_False()
            {
                var input = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
        <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        [|var obj = new Program1();|]
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig""></AnalyzerConfigDocument>
    </Project>
</Workspace>";

                var expected = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
         <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        var obj = new Program1();
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig"">[*.cs]

# IDE0008: Use explicit type
csharp_style_var_for_built_in_types = false
</AnalyzerConfigDocument>
    </Project>
</Workspace>";

                await TestInRegularAndScriptAsync(input, expected, CodeActionIndex);
            }

            [Fact]
            public async Task ConfigureEditorconfig_RuleExists_False()
            {
                var input = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
        <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        [|var obj = new Program1();|]
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig"">[*.cs]
csharp_style_var_for_built_in_types = true:silent
</AnalyzerConfigDocument>
    </Project>
</Workspace>";

                var expected = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
         <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        var obj = new Program1();
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig"">[*.cs]
csharp_style_var_for_built_in_types = false:silent
</AnalyzerConfigDocument>
    </Project>
</Workspace>";

                await TestInRegularAndScriptAsync(input, expected, CodeActionIndex);
            }

            [Fact]
            public async Task ConfigureEditorconfig_RuleExists_False_WithoutSeveritySuffix()
            {
                var input = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
        <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        [|var obj = new Program1();|]
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig"">[*.cs]
csharp_style_var_for_built_in_types = true
</AnalyzerConfigDocument>
    </Project>
</Workspace>";

                var expected = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
         <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        var obj = new Program1();
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig"">[*.cs]
csharp_style_var_for_built_in_types = false
</AnalyzerConfigDocument>
    </Project>
</Workspace>";

                await TestInRegularAndScriptAsync(input, expected, CodeActionIndex);
            }

            [ConditionalFact(typeof(IsEnglishLocal))]
            public async Task ConfigureEditorconfig_InvalidHeader_False()
            {
                var input = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
        <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        [|var obj = new Program1();|]
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig"">[*.vb]
csharp_style_var_for_built_in_types = true:silent
</AnalyzerConfigDocument>
    </Project>
</Workspace>";

                var expected = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
        <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        var obj = new Program1();
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig"">[*.vb]
csharp_style_var_for_built_in_types = true:silent

[*.cs]

# IDE0008: Use explicit type
csharp_style_var_for_built_in_types = false
</AnalyzerConfigDocument>
    </Project>
</Workspace>";

                await TestInRegularAndScriptAsync(input, expected, CodeActionIndex);
            }

            [Fact]
            public async Task ConfigureEditorconfig_MaintainSeverity_False()
            {
                var input = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
        <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        [|var obj = new Program1();|]
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig"">[*.{vb,cs}]
csharp_style_var_for_built_in_types = true:suggestion
</AnalyzerConfigDocument>
    </Project>
</Workspace>";

                var expected = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
         <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        var obj = new Program1();
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig"">[*.{vb,cs}]
csharp_style_var_for_built_in_types = false:suggestion
</AnalyzerConfigDocument>
    </Project>
</Workspace>";

                await TestInRegularAndScriptAsync(input, expected, CodeActionIndex);
            }

            [ConditionalFact(typeof(IsEnglishLocal))]
            public async Task ConfigureEditorconfig_InvalidRule_False()
            {
                var input = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
        <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        [|var obj = new Program1();|]
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig"">[*.cs]
csharp_style_var_for_built_in_types_error = false:silent
</AnalyzerConfigDocument>
    </Project>
</Workspace>";

                var expected = @"
<Workspace>
    <Project Language=""C#"" AssemblyName=""Assembly1"" CommonReferences=""true"">
        <Document FilePath=""z:\\file.cs"">
class Program1
{
    static void Main()
    {
        // { csharp_style_var_when_type_is_apparent, csharp_style_var_for_built_in_types, csharp_style_var_elsewhere }
        var obj = new Program1();
    }
}
        </Document>
        <AnalyzerConfigDocument FilePath=""z:\\.editorconfig"">[*.cs]
csharp_style_var_for_built_in_types_error = false:silent

# IDE0008: Use explicit type
csharp_style_var_for_built_in_types = false
</AnalyzerConfigDocument>
    </Project>
</Workspace>";

                await TestInRegularAndScriptAsync(input, expected, CodeActionIndex);
            }
        }
    }
}
