using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using LCU.Shared.Collections.RepoApiLib.Models;
using LCU.Shared.Collections.RepoApiLib.WebServices.AutoIMS;

namespace LCU.API.Collections.RepoApi.Models.Requests
{
    public class AuctionAssignmentPostRequest : IValidatableObject
    {
        [Required]
        public Shared.Collections.RepoApiLib.Models.AuctionAssignment AuctionAssignment { get; set; }

        [Required]
        public IReadOnlyCollection<Collateral> Collaterals { get; set; }

        [Required]
        public VehicleLocation VehicleLocation { get; set; }

        [Required]
        public int? PrimaryCollateralId { get; set; }

        public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
        {
            var failedValidations = new List<ValidationResult>();

            if (this.Collaterals.Count == 0)
            {
                failedValidations.Add(new ValidationResult("There must be at least one collateral when creating an auction assignment."));
            }

            var primaryCollateral = Collaterals.Where(collateral => collateral.CollateralId == PrimaryCollateralId).FirstOrDefault();
            if (primaryCollateral == null)
            {
                failedValidations.Add(new ValidationResult("Collaterals must contain a piece of Collateral with a CollateralID that matches the PrimaryCollateralId."));
            }

            return failedValidations;
        }
    }
}