using System.ComponentModel.DataAnnotations;

namespace Landmark.OLA.Models
{
    public static class ModelValidator
    {
        public static bool TryValidate(Object data)
        {
            try
            {
                Validate(data);
                return true;
            }
            catch(Exception)
            {
                return false;
            }

        }

        //TODO #231: This will not validate properties of the object passed in - a valid Individual with an invalid Address will be deemed valid.
        //Controllers do validate all properties.
        public static void Validate(Object data)
        {
            //https://stackoverflow.com/a/3783328/266594
            var validationResults = new List<ValidationResult>(); //Can use this to inform user of exact problems
            var vc = new ValidationContext(data, null, null);
            var isValid = Validator.TryValidateObject(data, vc, validationResults, true);

            if (!isValid)
            {
                string validationProblems = String.Join('\n', validationResults);
                throw new ArgumentException($"{data.GetType()} data is invalid: \n {validationProblems}");
            }
        }
    }
}