using System.Collections.Generic;
using System.Linq;

namespace EnVisage.Code.Extensions
{
    public static class ValidationExtensions
    {
        public static List<EnVisage.Code.Validation.FieldValidationError> GetModelStateErrors(this System.Web.Mvc.ModelStateDictionary modelState)
        {
            if (null == modelState || modelState.IsValid)
                return null;
            var errorModel = (from x in modelState.Keys
                    where modelState[x].Errors.Count > 0
                    select new EnVisage.Code.Validation.FieldValidationError
                    {
                        FieldName = x,
                        ErrorMessages = modelState[x].Errors.Select(y => y.ErrorMessage).ToList()
                    }).ToList();
            return errorModel;
        }
    }
}