using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
using GB5Shared.DTO.Framework.Login;

namespace GB5Shared.ValidationCriteria
{
    /// <summary>
    /// Shared evaluator any module's eligibility check calls instead of writing its own gating join.
    /// EntityType follows GB5Shared.DTO.Framework.Taxonomy.TaxonomyEntityTypeConstant's numbering.
    /// </summary>
    public interface IValidationCriteriaEvaluator
    {
        /// <summary>Returns only the criteria that are NOT currently met for this employee/entity —
        /// an empty list means fully eligible. entityStepId = -1 for entity-level only, or -2 for
        /// "all levels" (entity-level + every step).</summary>
        Task<List<ValidationCriteriaResultDTO>> GetUnmetValidationCriteriaAsync(
            short entityType, int entityId, int entityStepId, int employeeId, LoginDTO login, CancellationToken ct);
    }
}