// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.

using System.ComponentModel.DataAnnotations;

namespace Microsoft.AspNet.Mvc.IntegrationTests
{
    public class ProductValidatorAttribute : ValidationAttribute
    {
        protected override ValidationResult IsValid(object value, ValidationContext validationContext)
        {
            var product = value as ProductViewModel;
            if (product != null)
            {
                if (!product.Country.Equals("USA") || string.IsNullOrEmpty(product.Name))
                {
                    return new ValidationResult("Product must be made in the USA if it is not named.");
                }
                else
                {
                    return null;
                }
            }
            var software = value as SoftwareViewModel;
            if (software != null)
            {
                if (!software.Country.Equals("USA") || string.IsNullOrEmpty(software.Name))
                {
                    return new ValidationResult("Product must be made in the USA if it is not named.");
                }
                else
                {
                    return null;
                }
            }

            return new ValidationResult("Expected either ProductViewModel or SoftwareViewModel instance but got "
                + value.GetType() + " instance");
        }
    }
}