using System.Data.Common;
using GB5Shared.DTO.Framework.Criteria;
using GB5Shared.DTO.Framework.Login;
using CRMSalesDAL.DTO.Deal;

namespace CRMSalesDAL.CustomCode.Deal;

public interface IDealDAL
{
    Task<string> GetDeal(int dealId, LoginDTO loginDTO, CancellationToken ct);
    Task<string> GetSelectListDeal(CriteriaDTO criteriaDTO, LoginDTO loginDTO, CancellationToken ct);

    /// <summary>Current persisted Stage, or null if the Deal does not exist yet — used by DealBLL
    /// to detect a stage change on Update without loading the full row.</summary>
    Task<byte?> GetDealStage(int dealId, LoginDTO loginDTO, CancellationToken ct);

    // Transactional write overloads — called from BaseEntityAppService.ExecuteSaveAsync's
    // persistFunc so the save participates in the single pipeline transaction.
    Task<int> SaveDeal(DealDTO dealDTO, LoginDTO loginDTO, DbTransaction tx, CancellationToken ct);
    Task<int> UpdateDeal(DealDTO dealDTO, LoginDTO loginDTO, DbTransaction tx, CancellationToken ct);
    Task<string> DeleteDeal(int dealId, LoginDTO loginDTO, CancellationToken ct);
}