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//
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//////////////////////////////////////////////////////////////////////////////

#pragma once

#include <musikcore/config.h>
#include <musikcore/library/track/Track.h>
#include <musikcore/library/LocalLibrary.h>

#include <filesystem>

namespace musik { namespace core {

    class IndexerTrack: public Track {
        public:
            IndexerTrack(int64_t trackId);
            virtual ~IndexerTrack();

            /* ITagStore */
            void SetValue(const char* metakey, const char* value) override;
            void ClearValue(const char* metakey) override;
            bool Contains(const char* metakey) override;
            void SetThumbnail(const char *data, long size) override;
            bool ContainsThumbnail() override;
            void SetReplayGain(const musik::core::sdk::ReplayGain& replayGain) override;

            /* ITrack */
            std::string GetString(const char* metakey) override;
            int GetString(const char* key, char* dst, int size) override;
            long long GetInt64(const char* key, long long defaultValue = 0LL) override;
            int GetInt32(const char* key, unsigned int defaultValue = 0) override;
            double GetDouble(const char* key, double defaultValue = 0.0f) override;
            std::string Uri() override;
            int Uri(char* dst, int size) override;
            musik::core::sdk::ReplayGain GetReplayGain() override;
            musik::core::sdk::MetadataState GetMetadataState() override;

            MetadataIteratorRange GetValues(const char* metakey) override;
            MetadataIteratorRange GetAllValues() override;
            TrackPtr Copy() override;
            int64_t GetId() override;
            void SetId(int64_t trackId) noexcept override { this->trackId = trackId; }
            void SetMetadataState(musik::core::sdk::MetadataState state)  override;

            bool NeedsToBeIndexed(
                const std::filesystem::path &file,
                db::Connection &dbConnection);

            bool Save(
                db::Connection &dbConnection,
                std::string libraryDirectory);

            static void OnIndexerStarted(db::Connection &dbConnection);
            static void OnIndexerFinished(db::Connection &dbConnection);

        protected:
            friend class Indexer;
            static std::mutex sharedWriteMutex;

        private:
            int64_t trackId;

        private:
            class InternalMetadata {
                public:
                    InternalMetadata();
                    ~InternalMetadata();

                    Track::MetadataMap metadata;
                    std::shared_ptr<musik::core::sdk::ReplayGain> replayGain;
                    char *thumbnailData;
                    int thumbnailSize;
            };

            InternalMetadata *internalMetadata;

            int64_t SaveThumbnail(
                db::Connection& connection,
                const std::string& libraryDirectory);

            int64_t GetThumbnailId();

            int64_t SaveGenre(db::Connection& connection);

            int64_t SaveArtist(db::Connection& connection);

            int64_t SaveAlbum(db::Connection& connection, int64_t thumbnailId);

            int64_t SaveSingleValueField(
                db::Connection& connection,
                const std::string& trackMetadataKeyName,
                const std::string& fieldTableName);

            int64_t SaveMultiValueField(
                db::Connection& connection,
                const std::string& tracksTableColumnName,
                const std::string& fieldTableName,
                const std::string& junctionTableName,
                const std::string& junctionTableForeignKeyColumnName);

            int64_t SaveNormalizedFieldValue(
                db::Connection& dbConnection,
                const std::string& tableName,
                const std::string& fieldValue,
                bool isAggregatedValue,
                const std::string& relationJunctionTableName = "",
                const std::string& relationJunctionTableColumn = "");

            void SaveDirectory(
                db::Connection& dbConnection,
                const std::string& filename);

            void SaveReplayGain(db::Connection& dbConnection);

            void ProcessNonStandardMetadata(db::Connection& connection);
    };

} }
