using System.Linq;
using Nancy;
using Nancy.ModelBinding;
using Sony.Filtr.Applications;
using Sony.Filtr.Contracts.Entities.Genre;
using Sony.Filtr.Core.Genres;

namespace Sony.Filtr.AdminAPI.Modules.PublicData
{
    public class TagModule : BaseModule
    {
        public TagModule(ApplicationInstanceManager applicationInstanceManager, GenreManager genreManager) : base(applicationInstanceManager)
        {
            Get["GetTags", "/{countryCode}/tags"] = parameters =>
            {
                var genres = genreManager.GetGenres(CurrentApplication);
                return Response.AsJson(genres);
            };

            Get["GetSingleTag", "/{countryCode}/tags/{genreName}"] = parameters =>
            {
                var genreName = (string)parameters.GenreName;
                if (string.IsNullOrWhiteSpace(genreName))
                    return HttpStatusCode.BadRequest;

                var genre = genreManager.GetGenre(CurrentApplication, genreName);
                if (genre == null)
                    return HttpStatusCode.NotFound;

                return Response.AsJson(genre);
            };
            Put["UpdateTag", "/{countryCode}/tags/{genreName}"] = parameters =>
            {
                var genreName = (string)parameters.GenreName;
                if (string.IsNullOrWhiteSpace(genreName))
                    return HttpStatusCode.BadRequest;

                var genre = this.Bind<Genre>();
                var app = CurrentApplication;

                //Dupe-check. There can only exist one genre for a specific name in a market. If one exists we treat this as an update.
                var existingGenre = genreManager.GetGenre(CurrentApplication, genreName);

                if (existingGenre != null)
                    genre.ID = existingGenre.ID;

                genre.Name = genreName;
                genre.ApplicationID = app.ID;

                genre = genreManager.SaveGenre(genre);

                return Response.AsJson(genre);
            };

            Delete["DeleteTag", "/{countryCode}/tags/{genreName}"] = parameters =>
            {
                var genreName = (string)parameters.GenreName;
                var existingGenre = genreManager.GetGenre(CurrentApplication, genreName);
                if (existingGenre == null)
                    return HttpStatusCode.NotFound;

                genreManager.DeleteGenre(existingGenre);

                return HttpStatusCode.NoContent;
            };
        }
    }
}