aidanmorgan

namespace WhiskeyRecommender.Persistence
{
    /// <summary>
    /// A <see cref="IUnitOfWork"/> wraps a database transaction and provides access to the objects via a repository pattern.
    /// 
    /// This class implements <see cref="IDisposable"/> to allow use inside <c>using</c> blocks, and should automatically
    /// close the database transaction (without saving) when disposed.
    /// </summary>
    public interface IUnitOfWork : IDisposable
    {

aidanmorgan

namespace WhiskeyRecommender.Persistence
{
    /// <summary>
    /// Simple base interface that defines standard operations that are performed by all repositories in the system.
    /// </summary>
    public interface IRepository<T>
    {
        /// <summary>
        /// Returns an instance of <c>T</c> that has the provided id.
        /// </summary>

aidanmorgan

namespace WhiskeyRecommender.Persistence
{
    /// <summary>
    /// A simple factory interface that is used for creating implementations of the <see cref="IUnitOfWork"/> interface.
    /// </summary>
    public interface IUnitOfWorkFactory
    {
        /// <summary>
        /// Create a new <see cref="IUnitOfWork"/> with the provided name.
        /// </summary>

aidanmorgan

    public interface IWhiskeyRepository : IRepository<Whiskey>
    {
        /// <summary>
        /// Creates a new <see cref="Whiskey"/> instance, associates it with the provided <see cref="Distillery"/> and returns the new instance.
        /// </summary>
        Whiskey Create(Distillery d, WhiskeyType type);

        /// <summary>
        /// Adds the provided <see cref="Whiskey"/> to the database, associating it with the provided <see cref="Distillery"/>.
        /// </summary>

aidanmorgan

        public Whiskey Create(Distillery d, WhiskeyType type)
        {
            Whiskey w = new Whiskey
                            {
                                Type = type
                            };

            Add(d, w);

            return w;

aidanmorgan

        public RatingDTO GetUserRatingForWhiskey(Guid userId, Guid whiskeyId)
        {
            using(IUnitOfWork uow = _unitOfWorkFactory.Create("RatingService.GetUserRatingForWhiskey"))
            {
                User u = uow.UserRepository.FindById(userId);
                Whiskey w = uow.WhiskeyRepository.FindById(whiskeyId);

                if(u == null)
                {
                    throw new ArgumentException(string.Format("No User with id {0} exists.", userId));

aidanmorgan

        public RatingDTO Create(Guid userId, Guid whiskeyId, int score, string review = "")
        {
            using(IUnitOfWork uow = _unitOfWorkFactory.Create("RatingService.Create"))
            {
                Rating r = uow.RatingRepository.All().Where(x => x.ReviewOf.Id == whiskeyId && x.ReviewedBy.Id == userId).FirstOrDefault();

                Whiskey w = uow.WhiskeyRepository.FindById(whiskeyId);
                User u = uow.UserRepository.FindById(userId);

                // there is no existing Rating in the system, so create a new one.))

aidanmorgan

    public class WhiskeyDTO
    {

        public static WhiskeyDTO Create(Whiskey w)
        {
            WhiskeyDTO dto = new WhiskeyDTO();
            dto.Name = w.Name;
            dto.Id = w.Id;
            dto.Description = w.Description;
            dto.Type = WhiskeyTypeDTO.Create(w.Type);

aidanmorgan

        public IList<WhiskeyDTO> FindWhiskeyForRegion(Guid regionId)
        {
            using (IUnitOfWork uow = _factory.Create("WhiskeyService.FindWhiskeyForRegion"))
            {
                Region r = uow.RegionRepository.FindById(regionId);
                IList<WhiskeyDTO> result = new List<WhiskeyDTO>();

                if (r == null)
                {
                    throw new ArgumentException(string.Format("Cannot find whiskey for Region {0} as it does not exist.", regionId), "regionId");

aidanmorgan

    public interface IServiceFactory
    {
        IAchievementService CreateAchivementService(ServiceContext context);
        IDistilleryService CreateDistilleryService(ServiceContext context);
        IRatingService CreateRatingService(ServiceContext context);
        IRecommendationService CreateRecommendationService(ServiceContext context);
        IUserService CreateUserService(ServiceContext context);
        IRegionService CreateRegionService(ServiceContext context);
        IWhiskeyService CreateWhiskeyService(ServiceContext context);
        IWhiskeyTypeService CreateWhiskeyTypeService(ServiceContext context);