// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Globalization;
using Xunit;
 
namespace Microsoft.AspNetCore.Razor.Language.IntegrationTests;
 
public class ComponentBindIntegrationTest : RazorIntegrationTestBase
{
    internal override RazorFileKind? FileKind => RazorFileKind.Component;
 
    internal override bool UseTwoPhaseCompilation => true;
 
    [Fact]
    public void BindDuplicates_ReportsDiagnostic()
    {
        // Arrange
        AdditionalSyntaxTrees.Add(Parse(@"
using System;
using Microsoft.AspNetCore.Components;
 
namespace Test
{
    [BindElement(""div"", ""value"", ""myvalue2"", ""myevent2"")]
    [BindElement(""div"", ""value"", ""myvalue"", ""myevent"")]
    public static class BindAttributes
    {
    }
}"));
 
        // Act
        var result = CompileToCSharp(@"
<div @bind-value=""@ParentValue"" />
@functions {
    public string ParentValue { get; set; } = ""hi"";
}");
 
        // Assert
        var diagnostic = Assert.Single(result.RazorDiagnostics);
        Assert.Equal("RZ9989", diagnostic.Id);
        Assert.Equal("""
            The attribute '@bind-value' was matched by multiple bind attributes. Duplicates:
            Test.BindAttributes
            Test.BindAttributes
            """,
            diagnostic.GetMessage(CultureInfo.CurrentCulture));
    }
 
    [Fact]
    public void BindFallback_InvalidSyntax_TooManyParts()
    {
        // Arrange & Act
        var generated = CompileToCSharp(@"
<input type=""text"" @bind-first-second-third=""Text"" />
@functions {
    public string Text { get; set; } = ""text"";
}");
 
        // Assert
        var diagnostic = Assert.Single(generated.RazorDiagnostics);
        Assert.Equal("RZ9991", diagnostic.Id);
    }
 
    [Fact]
    public void BindFallback_InvalidSyntax_TrailingDash()
    {
        // Arrange & Act
        var generated = CompileToCSharp(@"
<input type=""text"" @bind-first-=""Text"" />
@functions {
    public string Text { get; set; } = ""text"";
}");
 
        // Assert
        var diagnostic = Assert.Single(generated.RazorDiagnostics);
        Assert.Equal("RZ9991", diagnostic.Id);
    }
 
    [Fact]
    public void Bind_InvalidUseOfDirective_DoesNotThrow()
    {
        // We're looking for VS crash issues. Meaning if the parser returns
        // diagnostics we don't want to throw.
        var generated = CompileToCSharp(@"
@using Microsoft.AspNetCore.Components.Web
<input type=""text"" @bind=""@page"" />
@functions {
    public string page { get; set; } = ""text"";
}");
 
        // Assert
        Assert.Collection(
            generated.RazorDiagnostics,
            d => Assert.Equal("RZ2005", d.Id),
            d => Assert.Equal("RZ1011", d.Id));
    }
}