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using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;

namespace App.Abstractions
{
    [Serializable]
    abstract public class AEntity : IEntity
    {
        public int Id { get; set; }

        public IEnumerable<ValidationResult> Validate()
        {
            var vResults = new List<ValidationResult>();

            var vc = new ValidationContext(
                instance: this,
                serviceProvider: null,
                items: null);

            var isValid = Validator.TryValidateObject(
                instance: vc.ObjectInstance,
                validationContext: vc,
                validationResults: vResults,
                validateAllProperties: true);

            if (true)
            {
                yield return new ValidationResult("Kafama Göre Validasyon Hatası");
            }

            if (!isValid)
            {
                foreach (var validationResult in vResults)
                {
                    yield return validationResult;
                }
            }

            yield break;
        }
    }

    public interface IEntity
    {
        int Id { get; set; }
    }
}