using GB5Shared.DTO.Framework.Login;
using WiDAL.CustomCode.EmployeeLeaveLink;

namespace WiBLL.EmployeeLeaveLink;

public class EmployeeLeaveLinkBLL : IEmployeeLeaveLinkBLL
{
    private readonly IEmployeeLeaveLinkDAL _dal;

    public EmployeeLeaveLinkBLL(IEmployeeLeaveLinkDAL dal) => _dal = dal;

    public async Task<HashSet<int>> GetApprovedLeaveEmployeeIdsAsync(
        IEnumerable<int> employeeIds, DateOnly leaveDate, LoginDTO login, CancellationToken ct)
    {
        var rows = await _dal.GetApprovedLeaveForDateAsync(employeeIds, leaveDate, login, ct).ConfigureAwait(false);
        return rows.Select(r => r.EmployeeId).ToHashSet();
    }
}