CategoryPreviewConverter.cs

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using System.Linq;
using PhotoSharingApp.Portable.DataContracts;
using PhotoSharingApp.Universal.Models;

namespace PhotoSharingApp.Universal.ContractModelConverterExtensions
{
    /// <summary>
    /// Helper class to convert between <see cref="CategoryPreview" />
    /// and <see cref="CategoryPreviewContract" /> classes.
    /// </summary>
    public static class CategoryPreviewConverter
    {
        /// <summary>
        /// Converts the given category preview data model to a contract.
        /// </summary>
        /// <param name="category">The category preview data model.</param>
        /// <returns>The category preview contract.</returns>
        public static CategoryPreviewContract ToDataContract(this CategoryPreview category)
        {
            return new CategoryPreviewContract
            {
                Id = category.Id,
                Name = category.Name,
                PhotoThumbnails = category.PhotoThumbnails.Select(t => t.ToDataContract()).ToList()
            };
        }

        /// <summary>
        /// Converts the given category preview contract to the category preview data model.
        /// </summary>
        /// <param name="categoryPreviewContract">The category preview data contract.</param>
        /// <returns>The category preview data model.</returns>
        public static CategoryPreview ToDataModel(this CategoryPreviewContract categoryPreviewContract)
        {
            return new CategoryPreview
            {
                Id = categoryPreviewContract.Id,
                Name = categoryPreviewContract.Name,
                PhotoThumbnails = categoryPreviewContract.PhotoThumbnails.Select(t => t.ToDataModel()).ToList()
            };
        }
    }
}