using BuildFlow.Infrastructure.Messaging;
using FluentAssertions;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using RabbitMQ.Client;
using Xunit;

namespace BuildFlow.Rag.Tests;

/// <summary>RabbitMQ 连接注册的凭据 fail-closed 行为测试。</summary>
public sealed class RabbitMqExtensionsTests
{
    [Theory]
    [InlineData(null)]
    [InlineData("")]
    [InlineData("REPLACE_IN_SECRETS")]
    public void MissingOrPlaceholderPasswordIsRejected(string? password)
    {
        var configuration = BuildConfiguration(password);
        var services = new ServiceCollection();
        services.AddRabbitMq(configuration);

        var act = () => services.BuildServiceProvider().GetRequiredService<IConnectionFactory>();

        act.Should()
            .Throw<InvalidOperationException>()
            .WithMessage("*RabbitMq:Password*");
    }

    [Fact]
    public void ConfiguredPasswordIsUsedWithoutFallback()
    {
        var configuration = BuildConfiguration("configured-secret");
        var services = new ServiceCollection();
        services.AddRabbitMq(configuration);

        var factory = services.BuildServiceProvider().GetRequiredService<IConnectionFactory>();

        factory.Password.Should().Be("configured-secret");
    }

    private static IConfiguration BuildConfiguration(string? password)
        => new ConfigurationBuilder()
            .AddInMemoryCollection(new Dictionary<string, string?>
            {
                ["RabbitMq:Host"] = "rabbitmq.test",
                ["RabbitMq:Port"] = "5672",
                ["RabbitMq:Username"] = "buildflow",
                ["RabbitMq:Password"] = password,
            })
            .Build();
}