using System.Diagnostics;
using System.Runtime.CompilerServices;

namespace ZB.MOM.WW.Theme.Tests;

/// <summary>
/// Theme-008: nav-state.js must not stack toggle listeners when Blazor's enhanced-navigation DOM
/// sync strips its marker attribute. Runs <c>nav-state.test.js</c> under Node (a DOM stub, no
/// jsdom); silently passes only when Node is not installed.
/// </summary>
public class NavStateScriptTests
{
    private static string Here([CallerFilePath] string path = "") => Path.GetDirectoryName(path)!;

    [Fact]
    public void NavState_does_not_stack_listeners_or_persist_the_transient_reveal()
    {
        var script = Path.GetFullPath(Path.Combine(Here(), "..", "..", "src", "ZB.MOM.WW.Theme", "wwwroot", "js", "nav-state.js"));
        var test = Path.Combine(Here(), "nav-state.test.js");

        Process? node;
        try
        {
            node = Process.Start(new ProcessStartInfo("node", $"\"{test}\" \"{script}\"")
            {
                RedirectStandardOutput = true,
                RedirectStandardError = true,
            });
        }
        catch (System.ComponentModel.Win32Exception)
        {
            return; // Node not available on this machine.
        }

        Assert.NotNull(node);
        using (node)
        {
            var output = node.StandardOutput.ReadToEnd() + node.StandardError.ReadToEnd();
            node.WaitForExit();
            Assert.True(node.ExitCode == 0, output);
        }
    }
}