// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
#nullable disable
 
using System.Collections.Immutable;
using Microsoft.AspNetCore.Razor.Language.CodeGeneration;
using Xunit;
 
namespace Microsoft.AspNetCore.Razor.Language.Extensions;
 
public class MetadataAttributeTargetExtensionTest
{
    [Fact]
    public void WriteRazorCompiledItemAttribute_RendersCorrectly()
    {
        // Arrange
        var extension = new MetadataAttributeTargetExtension()
        {
            CompiledItemAttributeName = "global::TestItem",
        };
        using var context = TestCodeRenderingContext.CreateRuntime();
 
        var node = new RazorCompiledItemAttributeIntermediateNode()
        {
            TypeName = "Foo.Bar",
            Kind = "test",
            Identifier = "Foo/Bar",
        };
 
        // Act
        extension.WriteRazorCompiledItemAttribute(context, node);
 
        // Assert
        var csharp = context.CodeWriter.GetText().ToString();
        Assert.Equal(
@"[assembly: global::TestItem(typeof(Foo.Bar), @""test"", @""Foo/Bar"")]
",
            csharp,
            ignoreLineEndingDifferences: true);
    }
 
    [Fact]
    public void WriteRazorSourceChecksumAttribute_RendersCorrectly()
    {
        // Arrange
        var extension = new MetadataAttributeTargetExtension()
        {
            SourceChecksumAttributeName = "global::TestChecksum",
        };
        using var context = TestCodeRenderingContext.CreateRuntime();
 
        var node = new RazorSourceChecksumAttributeIntermediateNode()
        {
            ChecksumAlgorithm = CodeAnalysis.Text.SourceHashAlgorithm.Sha256,
            Checksum = ImmutableArray.Create((byte)'t', (byte)'e', (byte)'s', (byte)'t'),
            Identifier = "Foo/Bar",
        };
 
        // Act
        extension.WriteRazorSourceChecksumAttribute(context, node);
 
        // Assert
        var csharp = context.CodeWriter.GetText().ToString();
        Assert.Equal(
@"[global::TestChecksum(@""Sha256"", @""74657374"", @""Foo/Bar"")]
",
            csharp,
            ignoreLineEndingDifferences: true);
    }
 
    [Fact]
    public void WriteRazorCompiledItemAttributeMetadata_RendersCorrectly()
    {
        // Arrange
        var extension = new MetadataAttributeTargetExtension()
        {
            CompiledItemMetadataAttributeName = "global::TestItemMetadata",
        };
        using var context = TestCodeRenderingContext.CreateRuntime();
 
        var node = new RazorCompiledItemMetadataAttributeIntermediateNode
        {
            Key = "key",
            Value = "value",
        };
 
        // Act
        extension.WriteRazorCompiledItemMetadataAttribute(context, node);
 
        // Assert
        var csharp = context.CodeWriter.GetText().ToString().Trim();
        Assert.Equal(
"[global::TestItemMetadata(\"key\", \"value\")]",
            csharp,
            ignoreLineEndingDifferences: true);
    }
 
    [Fact]
    public void WriteRazorCompiledItemAttributeMetadata_EscapesKeysAndValuesCorrectly()
    {
        // Arrange
        var extension = new MetadataAttributeTargetExtension()
        {
            CompiledItemMetadataAttributeName = "global::TestItemMetadata",
        };
        using var context = TestCodeRenderingContext.CreateRuntime();
 
        var node = new RazorCompiledItemMetadataAttributeIntermediateNode
        {
            Key = "\"test\" key",
            Value = @"""test"" value",
        };
 
        // Act
        extension.WriteRazorCompiledItemMetadataAttribute(context, node);
 
        // Assert
        var csharp = context.CodeWriter.GetText().ToString().Trim();
        Assert.Equal(
"[global::TestItemMetadata(\"\\\"test\\\" key\", \"\\\"test\\\" value\")]",
            csharp,
            ignoreLineEndingDifferences: true);
    }
}