using DigitalData.Modules.Database;
using DigitalData.Modules.Logging;
using EnvelopeGenerator.Common;

namespace EnvelopeGenerator.Web.Services
{
    public class DatabaseService
    {
        public MSSQLServer MSSQL { get; set; }

        private EnvelopeModel envelopeModel;
        private DocumentModel documentModel;
        private ElementModel elementModel;

        private readonly LogConfig _logConfig;
        private readonly Logger _logger;


        public DatabaseService(LoggingService Logging, IConfiguration Config)
        {
            _logConfig = Logging.LogConfig;
            _logger = Logging.LogConfig.GetLogger();

            _logger.Debug("Establishing MSSQL Database connection..");
            MSSQL = new MSSQLServer(_logConfig, Config["Config:ConnectionString"]);

            if (MSSQL.DBInitialized == true)
            {
                _logger.Debug("MSSQL Connection: [{0}]", MSSQL.CurrentConnectionString);

                var state = GetState();
                InitializeModels(state);
            }
            else
            {
                _logger.Warn("Connection could not be established!");


            }
        }

        public State GetState()
        {
            return new State
            {
                Database = MSSQL,
                LogConfig = _logConfig,
                UserId = 2 // TODO
            };
        }

        public void InitializeModels(State state)
        {
            envelopeModel = new(state);
            documentModel = new(state);
            elementModel = new(state);
        }

        public Envelope LoadEnvelope(string envelopeReceiverId)
        {
           Tuple<string, string> result = Helpers.DecodeEnvelopeReceiverId(envelopeReceiverId);
            var envelopeUuid = result.Item1;
            var receiverSignature = result.Item2;

            Envelope envelope = envelopeModel.GetByUuid(envelopeUuid);
            List<EnvelopeDocument> documents = (List<EnvelopeDocument>)documentModel.List(envelope.Id);

            envelope.Documents = documents;

            return envelope;
        }

        public List<Envelope> LoadEnvelopes()
        {
            return (List<Envelope>)envelopeModel.List();
        }

        public EnvelopeDocument LoadDocument(int pDocumentId)
        {
            return documentModel.GetById(pDocumentId);
        }

    }
}