using System.Collections.Generic;
using System.Linq;
using Nancy;
using Sony.Filtr.AdminAPI.Utility;
using Sony.Filtr.AdminSearch;
using Sony.Filtr.AdminSearch.Models;
using Sony.Filtr.Applications;
using Sony.Filtr.Contracts.Definitions;
using Sony.Filtr.Contracts.Entities.Buzz;
using Sony.Filtr.Utility;

namespace Sony.Filtr.AdminAPI.Modules.AppleMusic
{
    public class AppleMusicSearchModule : BaseModule
    {
        public AppleMusicSearchModule(ApplicationInstanceManager applicationInstanceManager, AdminSearchManager adminSearchManager) : base(applicationInstanceManager)
        {
            Get["GetAppleMusicSearchResults", "/appleMusic/search/", true] = async (parameters, cx) =>
            {
                var searchTerm = (string)Request.Query.search;
                if (string.IsNullOrWhiteSpace(searchTerm))
                {
                    return HttpStatusCode.BadRequest;
                }

                var limit = Maybe.ToIntOrFallback((string)Request.Query.limit, 10);

                var searchBuzzUsersTask = adminSearchManager.SearchBuzzUsersAsync(searchTerm, MusicService.AppleMusic, limit);
                var searchAppleMusicPlaylistResultTask = adminSearchManager.SearchAppleMusicPlaylistAsync(searchTerm, limit);

                var buzzUsers = await searchBuzzUsersTask;
                var appleMusicPlaylists = await searchAppleMusicPlaylistResultTask;

                var resultModel = BuildSearchResultViewModel(appleMusicPlaylists, buzzUsers);

                return Response.AsJson(resultModel);
            };
        }

        private SearchResultViewModel BuildSearchResultViewModel(List<AppleMusicPlaylistIndexItem> playlistSearchResults, List<BuzzUser> buzzUsers)
        {
            var resultModel = new SearchResultViewModel()
            {
                Playlists = playlistSearchResults.Select(BuildPlaylist).ToList(),
                Users = buzzUsers.Select(BuildUser).ToList()
            };

            return resultModel;
        }

        private AppleMusicSearchUserViewModel BuildUser(BuzzUser buzzUser)
        {
            return new AppleMusicSearchUserViewModel()
            {
                Name = string.IsNullOrWhiteSpace(buzzUser.DisplayName) ? buzzUser.Username : buzzUser.DisplayName,
                CountryCode = buzzUser.CountryCode,
                CuratorId = buzzUser.Username,
                ImageUrl = ImageUrlUtility.GetAbsoluteImageUrl(buzzUser.Image),
            };
        }

        private AppleMusicSearchPlaylistViewModel BuildPlaylist(AppleMusicPlaylistIndexItem playlist)
        {
            return new AppleMusicSearchPlaylistViewModel()
            {
                Name = playlist.Name,
                PlaylistId = playlist.PlaylistId,
                CountryCode = playlist.CountryCode,
                Image = playlist.ArtworkUrl,
                AccountName = playlist.Curator,
            };
        }
    }

    public class SearchResultViewModel
    {
        public List<AppleMusicSearchPlaylistViewModel> Playlists { get; set; }

        public List<AppleMusicSearchUserViewModel> Users { get; set; }
    }

    public class AppleMusicSearchUserViewModel
    {
        public string Name { get; set; }
        public string CuratorId { get; set; }
        public string CountryCode { get; set; }

        public string ImageUrl { get; set; }
    }
    public class AppleMusicSearchPlaylistViewModel
    {
        public string Name { get; set; }
        public string PlaylistId { get; set; }
        public string Image { get; set; }
        public string CountryCode { get; set; }

        public string AccountName { get; set; }
    }
}