using System;
using System.Collections.Generic;
using System.Web.Mvc;

namespace EnVisage.Models.ValidationAttributes.Scenarios
{
    public class DateForStartOfChangeValidatorAttribute : ValidationAttributeBase, IClientValidatable
    {
        public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context)
        {
            var rule = new ModelClientValidationRule
            {
                ErrorMessage = ErrorMessage,
                ValidationType = "dateforstartofchange"
            };

            var hasActuals = ((bool?)GetPropertyValue("HasActuals", metadata, context) ?? false);
            var actualsEndDate = ((long?)GetPropertyValue("ActualsEndDate", metadata, context) ?? 0);

            rule.ValidationParameters["hasactuals"] = Convert.ToInt32(hasActuals);
            rule.ValidationParameters["actualsenddate"] = actualsEndDate;
            rule.ValidationParameters["scenariostartdateproperty"] = "StartDate";
            rule.ValidationParameters["scenarioenddateproperty"] = "EndDate";

            yield return rule;
        }
    }
}