using EnvelopeGenerator.Common;
using EnvelopeGenerator.Web.Services;

namespace EnvelopeGenerator.Web.Handler
{
    public class FileHandler
    {
        public async static Task<IResult> HandleFile(HttpContext ctx, DatabaseService database, LoggingService logging)
        {
            var logger = logging.LogConfig.GetLogger("FileHandler");
            string envelopeKey = (string)ctx.Request.RouteValues["envelopeKey"];

            logger.Info("Downloading file with EnvelopeKey [{0}]", envelopeKey);

            Tuple<string, string> result = Helpers.DecodeEnvelopeReceiverId(envelopeKey);
            logger.Info("EnvelopeUUID: [{0}]", result.Item1);
            logger.Info("ReceiverSignature: [{0}]", result.Item2);

            EnvelopeResponse response = database.LoadEnvelope(envelopeKey);
            var envelope = response.Envelope;
            logger.Info("Envelope [{0}] loaded", envelope.Id);
            logger.Info("Contains [{0}] documents", envelope.Documents.Count);
            logger.Info("Contains [{0}] receivers", envelope.Receivers.Count);

            var document = envelope.Documents.First();
            var bytes = await File.ReadAllBytesAsync(document.Filepath);
            logger.Info("Serving file, size: [{0}]", bytes.Length);

            return Results.File(bytes);

        }

        public static Task<IResult> HandleGetData(HttpContext ctx, DatabaseService database, LoggingService logging)
        {
            var logger = logging.LogConfig.GetLogger("FileHandler");
            string envelopeKey = (string)ctx.Request.RouteValues["envelopeKey"];

            logger.Info("Fetching data for envelope with EnvelopeKey [{0}]", envelopeKey);

            Tuple<string, string> result = Helpers.DecodeEnvelopeReceiverId(envelopeKey);
            logger.Info("EnvelopeUUID: [{0}]", result.Item1);
            logger.Info("ReceiverSignature: [{0}]", result.Item2);

            var response = database.LoadEnvelope(envelopeKey);
            var envelope = response.Envelope;
            logger.Info("Envelope [{0}] loaded", envelope.Id);
            logger.Info("Contains [{0}] documents", envelope.Documents.Count);
            logger.Info("Contains [{0}] receivers", envelope.Receivers.Count);

            
            return Task.FromResult(Results.Json(response));
        }

    }
}