using GB5Shared.DTO.Framework.Login;

namespace ComplianceBLL.GSTR9;

public interface IGSTR9BLL
{
    // returnPeriod is MMYYYY, same shape as every other GST period in this module (e.g. "062026") —
    // GSTR9 only cares about the year component (annual return), so the month is parsed and discarded.
    Task<string> GetGSTR9DataAsync(string gstin, string returnPeriod, LoginDTO login, CancellationToken ct);
    Task<string> GetGSTR9PreviewAsync(string gstin, string returnPeriod, LoginDTO login, CancellationToken ct);
}