namespace Backend;

public sealed class LanderConfig
{
    public string CliPath  { get; set; } = "publish/GameCli/GameCli";
    public string ModelPath { get; set; } = "models/ppo_lander.onnx";
}

/// <summary>
/// Walks up from <see cref="AppContext.BaseDirectory"/> to find the repo root
/// (marker file: <c>GameCli.sln</c>) and resolves the configured paths against it.
/// </summary>
public static class PathResolver
{
    public static string RepoRoot()
    {
        var dir = AppContext.BaseDirectory;
        while (dir is not null)
        {
            if (File.Exists(Path.Combine(dir, "GameCli.sln"))) return dir;
            var parent = Directory.GetParent(dir);
            if (parent is null) break;
            dir = parent.FullName;
        }
        throw new InvalidOperationException(
            "could not locate repo root (no GameCli.sln found in any ancestor)");
    }

    public static string Resolve(string relativeOrAbsolute)
    {
        if (Path.IsPathRooted(relativeOrAbsolute)) return relativeOrAbsolute;
        return Path.GetFullPath(Path.Combine(RepoRoot(), relativeOrAbsolute));
    }
}