using GB5Shared.DTO.Framework.Login;
using MMDAL.DTO.StockValuation;
using System.Data.Common;

namespace MMDAL.CustomCode.FifoLayerCost;

public interface IFifoLayerCostDAL
{
    Task CreateCostLayerAsync(
        long costLayerId, int itemId, int skuId, int storeId, int ouid,
        decimal quantity, decimal unitCost,
        int objectTypeId, int objectId, long stockLedgerId,
        DateOnly layerDate,
        LoginDTO login, DbTransaction tx, CancellationToken ct);

    /// <summary>
    /// Returns slices consumed from open cost layers for this issue quantity.
    /// isLifo=false → FIFO; isLifo=true → LIFO.
    /// </summary>
    Task<List<FifoAllocationDTO>> AllocateLayersAsync(
        int itemId, int skuId, int storeId, int ouid,
        decimal issueQty, bool isLifo,
        LoginDTO login, CancellationToken ct);

    /// <summary>
    /// Decrements TCOSTLAYER.RemainingQuantity for a consumed slice.
    /// Marks ISFULLYCONSUMED=1 when remaining drops to zero.
    /// </summary>
    Task ConsumeLayerAsync(
        long costLayerId, decimal consumedQty,
        LoginDTO login, DbTransaction tx, CancellationToken ct);

    /// <summary>
    /// Records each layer consumption in TCOSTLAYERDETAIL for audit.
    /// </summary>
    Task InsertLayerConsumptionAsync(
        long costLayerDetailId, long costLayerId, long issueStockLedgerId,
        decimal consumedQuantity, decimal unitCost,
        LoginDTO login, DbTransaction tx, CancellationToken ct);

    Task<List<StockCostLayerDTO>> GetOpenCostLayersAsync(
        int itemId, int skuId, int storeId, int ouid,
        LoginDTO login, CancellationToken ct);
}