using GB5Shared.DTO.Framework.Login;

namespace MMBLL.StockCostApport;

public interface IStockCostApportBLL
{
    /// <summary>
    /// Apportions a post-GRN charge (freight, duty, handling) to the stock positions
    /// of all items on the referenced GRN document, proportionally by item value.
    /// Updates TSTOCKPOSITION.AverageValue and recomputes AverageCost prospectively.
    /// Historical TSTOCKLEDGER records are NOT retroactively changed.
    /// </summary>
    Task<string> ApportionChargeAsync(
        int grnObjectTypeId, int grnObjectId,
        decimal totalChargeAmount, int chargeAccountId,
        LoginDTO login, CancellationToken ct);
}