// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Net.Http;
using System.Reflection;
using Microsoft.AspNetCore.InternalTesting;
using Xunit.Abstractions;
 
namespace Microsoft.AspNetCore.Mvc.FunctionalTests;
 
public class FlushPointTest : LoggedTest
{
    protected override void Initialize(TestContext context, MethodInfo methodInfo, object[] testMethodArguments, ITestOutputHelper testOutputHelper)
    {
        base.Initialize(context, methodInfo, testMethodArguments, testOutputHelper);
        Factory = new MvcTestFixture<RazorWebSite.Startup>(LoggerFactory);
        Client = Factory.CreateDefaultClient();
    }
 
    public override void Dispose()
    {
        Factory.Dispose();
        base.Dispose();
    }
 
    public MvcTestFixture<RazorWebSite.Startup> Factory { get; private set; }
    public HttpClient Client { get; private set; }
 
    [Fact]
    public async Task FlushPointsAreExecutedForPagesWithLayouts()
    {
        var expected = @"<title>Page With Layout</title>
 
RenderBody content
 
 
    <span>Content that takes time to produce</span>
 
";
 
        // Act
        var body = await Client.GetStringAsync("http://localhost/FlushPoint/PageWithLayout");
 
        // Assert
        Assert.Equal(expected, body, ignoreLineEndingDifferences: true);
    }
 
    [Fact]
    public async Task FlushFollowedByLargeContent()
    {
        // Arrange
        var expected = new string('a', 1024 * 1024);
 
        // Act
        var document = await Client.GetHtmlDocumentAsync("http://localhost/FlushPoint/FlushFollowedByLargeContent");
 
        // Assert
        var largeContent = document.RequiredQuerySelector("#large-content");
        Assert.StartsWith(expected, largeContent.TextContent);
    }
 
    [Fact]
    public async Task FlushInvokedInComponent()
    {
        var expected = new string('a', 1024 * 1024);
 
        // Act
        var document = await Client.GetHtmlDocumentAsync("http://localhost/FlushPoint/FlushInvokedInComponent");
 
        // Assert
        var largeContent = document.RequiredQuerySelector("#large-content");
        Assert.StartsWith(expected, largeContent.TextContent);
    }
 
    [Fact]
    public async Task FlushPointsAreExecutedForPagesWithoutLayouts()
    {
        var expected = @"Initial content
 
Secondary content
 
Inside partial
 
After flush inside partial<form action=""/FlushPoint/PageWithoutLayout"" method=""post"">" +
            @"<input id=""Name1"" name=""Name1"" type=""text"" value="""" />" +
            @"<input id=""Name2"" name=""Name2"" type=""text"" value="""" /></form>";
 
        // Act
        var body = await Client.GetStringAsync("http://localhost/FlushPoint/PageWithoutLayout");
 
        // Assert
        Assert.Equal(expected, body, ignoreLineEndingDifferences: true);
    }
 
    [Theory]
    [InlineData("PageWithPartialsAndViewComponents", "FlushAsync invoked inside RenderSection")]
    [InlineData("PageWithRenderSection", "FlushAsync invoked inside RenderSectionAsync")]
    public async Task FlushPointsAreExecutedForPagesWithComponentsPartialsAndSections(string action, string title)
    {
        var expected = $@"<title>{ title }</title>
RenderBody content
 
 
partial-content
 
Value from TaskReturningString
<p>section-content</p>
    component-content
    <span>Content that takes time to produce</span>
 
More content from layout
";
 
        // Act
        var body = await Client.GetStringAsync("http://localhost/FlushPoint/" + action);
 
        // Assert
        Assert.Equal(expected, body, ignoreLineEndingDifferences: true);
    }
 
    [Fact]
    public async Task FlushPointsNestedLayout()
    {
        // Arrange
        var expected = @"Inside Nested Layout
<title>Nested Page With Layout</title>
 
 
 
    <span>Nested content that takes time to produce</span>
";
 
        // Act
        var body = await Client.GetStringAsync("http://localhost/FlushPoint/PageWithNestedLayout");
 
        // Assert
        Assert.Equal(expected, body, ignoreLineEndingDifferences: true);
    }
}