namespace Nonemm.App.Configuration;

/// Where the operator's files live. Windows keeps them under Documents the way
/// N1MM does; everywhere else follows the XDG configuration directory.
public sealed class UserPaths
{
    public UserPaths(string root)
    {
        Root = root;
        Databases = Path.Combine(root, "Databases");
        UserDefinedContests = Path.Combine(root, "UserDefinedContests");
        SupportFiles = Path.Combine(root, "SupportFiles");
    }

    public static UserPaths Default() => new(DefaultRoot());

    public string Root { get; }

    public string Databases { get; }

    public string UserDefinedContests { get; }

    public string SupportFiles { get; }

    public string SettingsFile => Path.Combine(Root, "settings.json");

    public string CountryFile => Path.Combine(SupportFiles, "wl_cty.dat");

    public string CallDatabaseFile => Path.Combine(SupportFiles, "MASTER.SCP");

    /// The published list of cluster nodes, kept as the page it was downloaded
    /// from so a later version can read more out of it.
    public string ClusterListFile => Path.Combine(SupportFiles, "cluster-list.html");

    public void CreateFolders()
    {
        Directory.CreateDirectory(Root);
        Directory.CreateDirectory(Databases);
        Directory.CreateDirectory(UserDefinedContests);
        Directory.CreateDirectory(SupportFiles);
    }

    private static string DefaultRoot() =>
        OperatingSystem.IsWindows()
            ? Path.Combine(
                Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments),
                "Nonemm")
            : Path.Combine(
                Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
                "nonemm");
}