namespace BuildFlow.Architecture.Tests;

using Xunit;

/// <summary>
/// BuildFlow 低代码按钮权限架构约束。按钮运行时需要查 platform 权限时，
/// 必须通过目标模块 CQRS Query 调用，不能在 Host 注册 in-process service bridge。
/// </summary>
public class BuildFlowButtonCqrsArchitectureTests
{
    [Fact]
    public void BuildFlowButtonPermissionShouldNotUseHostServiceBridge()
    {
        var repoRoot = FindRepoRoot();
        var sourceFiles = Directory
            .EnumerateFiles(Path.Combine(repoRoot.FullName, "src"), "*.cs", SearchOption.AllDirectories)
            .Where(path => !ContainsPathSegment(path, "bin") && !ContainsPathSegment(path, "obj"))
            .Select(path => new
            {
                RelativePath = Path.GetRelativePath(repoRoot.FullName, path).Replace('\\', '/'),
                Text = File.ReadAllText(path),
            })
            .Where(file =>
                file.Text.Contains("IBuildFlowButtonPermissionChecker", StringComparison.Ordinal) ||
                file.Text.Contains("InProcessBuildFlowButtonPermissionChecker", StringComparison.Ordinal))
            .Select(file => file.RelativePath)
            .Order(StringComparer.Ordinal)
            .ToArray();

        Assert.True(
            sourceFiles.Length == 0,
            "BuildFlow 按钮权限不能通过 Host service/interface bridge 串联 platform；请在 workflow 命令处理链路中通过 IMediator 发送 platform Query。当前残留：" +
            Environment.NewLine +
            string.Join(Environment.NewLine, sourceFiles));
    }

    private static DirectoryInfo FindRepoRoot()
    {
        var current = new DirectoryInfo(AppContext.BaseDirectory);
        while (current is not null)
        {
            if (File.Exists(Path.Combine(current.FullName, "BuildFlow.slnx")))
            {
                return current;
            }

            current = current.Parent;
        }

        throw new InvalidOperationException("无法定位 BuildFlow.slnx，架构测试无法确定仓库边界。");
    }

    private static bool ContainsPathSegment(string path, string segment)
    {
        return path.Split(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar)
            .Any(part => string.Equals(part, segment, StringComparison.Ordinal));
    }
}