using System;
using System.Collections.Generic;
using Marr.Data;
using Marr.Data.Mapping;
using NzbDrone.Common.Reflection;
using NzbDrone.Core.Blacklisting;
using NzbDrone.Core.Configuration;
using NzbDrone.Core.DataAugmentation.Scene;
using NzbDrone.Core.Datastore.Converters;
using NzbDrone.Core.Datastore.Extensions;
using NzbDrone.Core.Download;
using NzbDrone.Core.Download.Pending;
using NzbDrone.Core.Indexers;
using NzbDrone.Core.Instrumentation;
using NzbDrone.Core.Jobs;
using NzbDrone.Core.MediaFiles;
using NzbDrone.Core.Profiles.Delay;
using NzbDrone.Core.RemotePathMappings;
using NzbDrone.Core.Notifications;
using NzbDrone.Core.Organizer;
using NzbDrone.Core.Parser.Model;
using NzbDrone.Core.Profiles.Qualities;
using NzbDrone.Core.Qualities;
using NzbDrone.Core.Restrictions;
using NzbDrone.Core.RootFolders;
using NzbDrone.Core.ArtistStats;
using NzbDrone.Core.SeriesStats;
using NzbDrone.Core.Tags;
using NzbDrone.Core.ThingiProvider;
using NzbDrone.Core.Tv;
using NzbDrone.Common.Disk;
using NzbDrone.Core.Authentication;
using NzbDrone.Core.Extras.Metadata;
using NzbDrone.Core.Extras.Metadata.Files;
using NzbDrone.Core.Extras.Others;
using NzbDrone.Core.Extras.Subtitles;
using NzbDrone.Core.Messaging.Commands;
using NzbDrone.Core.Music;
using NzbDrone.Core.Languages;
using NzbDrone.Core.Profiles.Languages;

namespace NzbDrone.Core.Datastore
{
    public static class TableMapping
    {
        private static readonly FluentMappings Mapper = new FluentMappings(true);

        public static void Map()
        {
            RegisterMappers();

            Mapper.Entity<Config>().RegisterModel("Config");
            Mapper.Entity<RootFolder>().RegisterModel("RootFolders").Ignore(r => r.FreeSpace);
            Mapper.Entity<ScheduledTask>().RegisterModel("ScheduledTasks");

            Mapper.Entity<IndexerDefinition>().RegisterDefinition("Indexers")
                  .Ignore(i => i.Enable)
                  .Ignore(i => i.Protocol)
                  .Ignore(i => i.SupportsRss)
                  .Ignore(i => i.SupportsSearch)
                  .Ignore(d => d.Tags);

            Mapper.Entity<NotificationDefinition>().RegisterDefinition("Notifications")
                  .Ignore(i => i.SupportsOnGrab)
                  .Ignore(i => i.SupportsOnDownload)
                  .Ignore(i => i.SupportsOnUpgrade)
                  .Ignore(i => i.SupportsOnRename);
            
            Mapper.Entity<MetadataDefinition>().RegisterDefinition("Metadata")
                  .Ignore(d => d.Tags);

            Mapper.Entity<DownloadClientDefinition>().RegisterDefinition("DownloadClients")
                  .Ignore(d => d.Protocol)
                  .Ignore(d => d.Tags);

            Mapper.Entity<SceneMapping>().RegisterModel("SceneMappings");

            Mapper.Entity<History.History>().RegisterModel("History")
                  .AutoMapChildModels();

            Mapper.Entity<Series>().RegisterModel("Series")
                  .Ignore(s => s.RootFolderPath)
                  .Relationship()
                  .HasOne(s => s.Profile, s => s.ProfileId)
                  .HasOne(s => s.LanguageProfile, s => s.LanguageProfileId);


            Mapper.Entity<EpisodeFile>().RegisterModel("EpisodeFiles")
                  .Ignore(f => f.Path)
                  .Relationships.AutoMapICollectionOrComplexProperties()
                  .For("Episodes")
                  .LazyLoad(condition: parent => parent.Id > 0, 
                            query: (db, parent) => db.Query<Episode>().Where(c => c.EpisodeFileId == parent.Id).ToList())
                  .HasOne(file => file.Series, file => file.SeriesId);

            Mapper.Entity<Episode>().RegisterModel("Episodes")
                  .Ignore(e => e.SeriesTitle)
                  .Ignore(e => e.Series)
                  .Ignore(e => e.HasFile)
                  .Relationship()
                  .HasOne(episode => episode.EpisodeFile, episode => episode.EpisodeFileId);

            Mapper.Entity<Artist>().RegisterModel("Artists")
                  .Ignore(s => s.RootFolderPath)
                  .Relationship()
                  .HasOne(a => a.Profile, a => a.ProfileId)
                  .HasOne(s => s.LanguageProfile, s => s.LanguageProfileId);

            Mapper.Entity<Album>().RegisterModel("Albums");

            Mapper.Entity<TrackFile>().RegisterModel("TrackFiles")
                  .Ignore(f => f.Path)
                  .Relationships.AutoMapICollectionOrComplexProperties()
                  .For("Tracks")
                  .LazyLoad(condition: parent => parent.Id > 0,
                            query: (db, parent) => db.Query<Track>().Where(c => c.TrackFileId == parent.Id).ToList()) // TODO: Figure what the hell to do here
                  .HasOne(file => file.Artist, file => file.ArtistId); 

            Mapper.Entity<Track>().RegisterModel("Tracks")
                  //.Ignore(e => e.SeriesTitle)
                  .Ignore(e => e.Album)
                  .Ignore(e => e.HasFile)
                  .Relationship()
                  // TODO: Need to implement ArtistId to Artist.Id here
                  .HasOne(track => track.TrackFile, track => track.TrackFileId); // TODO: Check lazy load for artists

            Mapper.Entity<QualityDefinition>().RegisterModel("QualityDefinitions")
                  .Ignore(d => d.Weight);

            Mapper.Entity<Profile>().RegisterModel("Profiles");
            Mapper.Entity<LanguageProfile>().RegisterModel("LanguageProfiles");
            Mapper.Entity<Log>().RegisterModel("Logs");
            Mapper.Entity<NamingConfig>().RegisterModel("NamingConfig");
            Mapper.Entity<AlbumStatistics>().MapResultSet();
            Mapper.Entity<Blacklist>().RegisterModel("Blacklist");
            Mapper.Entity<MetadataFile>().RegisterModel("MetadataFiles");
            Mapper.Entity<SubtitleFile>().RegisterModel("SubtitleFiles");
            Mapper.Entity<OtherExtraFile>().RegisterModel("ExtraFiles");

            Mapper.Entity<PendingRelease>().RegisterModel("PendingReleases")
                  .Ignore(e => e.RemoteEpisode);

            Mapper.Entity<RemotePathMapping>().RegisterModel("RemotePathMappings");
            Mapper.Entity<Tag>().RegisterModel("Tags");
            Mapper.Entity<Restriction>().RegisterModel("Restrictions");

            Mapper.Entity<DelayProfile>().RegisterModel("DelayProfiles");
            Mapper.Entity<User>().RegisterModel("Users");
            Mapper.Entity<CommandModel>().RegisterModel("Commands")
                .Ignore(c => c.Message);

            Mapper.Entity<IndexerStatus>().RegisterModel("IndexerStatus");
        }

        private static void RegisterMappers()
        {
            RegisterEmbeddedConverter();
            RegisterProviderSettingConverter();

            MapRepository.Instance.RegisterTypeConverter(typeof(int), new Int32Converter());
            MapRepository.Instance.RegisterTypeConverter(typeof(double), new DoubleConverter());
            MapRepository.Instance.RegisterTypeConverter(typeof(DateTime), new UtcConverter());
            MapRepository.Instance.RegisterTypeConverter(typeof(bool), new BooleanIntConverter());
            MapRepository.Instance.RegisterTypeConverter(typeof(Enum), new EnumIntConverter());
            MapRepository.Instance.RegisterTypeConverter(typeof(Quality), new QualityIntConverter());
            MapRepository.Instance.RegisterTypeConverter(typeof(List<ProfileQualityItem>), new EmbeddedDocumentConverter(new QualityIntConverter()));
            MapRepository.Instance.RegisterTypeConverter(typeof(QualityModel), new EmbeddedDocumentConverter(new QualityIntConverter()));
            MapRepository.Instance.RegisterTypeConverter(typeof(Dictionary<string, string>), new EmbeddedDocumentConverter());
            MapRepository.Instance.RegisterTypeConverter(typeof(List<int>), new EmbeddedDocumentConverter());
            MapRepository.Instance.RegisterTypeConverter(typeof(Language), new LanguageIntConverter());
            MapRepository.Instance.RegisterTypeConverter(typeof(List<string>), new EmbeddedDocumentConverter());
            MapRepository.Instance.RegisterTypeConverter(typeof(List<ProfileLanguageItem>), new EmbeddedDocumentConverter(new LanguageIntConverter()));
            MapRepository.Instance.RegisterTypeConverter(typeof(ParsedEpisodeInfo), new EmbeddedDocumentConverter());
            MapRepository.Instance.RegisterTypeConverter(typeof(ReleaseInfo), new EmbeddedDocumentConverter());
            MapRepository.Instance.RegisterTypeConverter(typeof(HashSet<int>), new EmbeddedDocumentConverter());
            MapRepository.Instance.RegisterTypeConverter(typeof(OsPath), new OsPathConverter());
            MapRepository.Instance.RegisterTypeConverter(typeof(Guid), new GuidConverter());
            MapRepository.Instance.RegisterTypeConverter(typeof(Command), new CommandConverter());
            MapRepository.Instance.RegisterTypeConverter(typeof(TimeSpan), new TimeSpanConverter());
            MapRepository.Instance.RegisterTypeConverter(typeof(TimeSpan?), new TimeSpanConverter());
        }

        private static void RegisterProviderSettingConverter()
        {
            var settingTypes = typeof(IProviderConfig).Assembly.ImplementationsOf<IProviderConfig>();

            var providerSettingConverter = new ProviderSettingConverter();
            foreach (var embeddedType in settingTypes)
            {
                MapRepository.Instance.RegisterTypeConverter(embeddedType, providerSettingConverter);
            }
        }

        private static void RegisterEmbeddedConverter()
        {
            var embeddedTypes = typeof(IEmbeddedDocument).Assembly.ImplementationsOf<IEmbeddedDocument>();

            var embeddedConvertor = new EmbeddedDocumentConverter();
            var genericListDefinition = typeof(List<>).GetGenericTypeDefinition();

            foreach (var embeddedType in embeddedTypes)
            {
                var embeddedListType = genericListDefinition.MakeGenericType(embeddedType);

                MapRepository.Instance.RegisterTypeConverter(embeddedType, embeddedConvertor);
                MapRepository.Instance.RegisterTypeConverter(embeddedListType, embeddedConvertor);
            }
        }
    }
}
