using DigitalData.Modules.Logging;
using EnvelopeGenerator.Common;
using EnvelopeGenerator.Web.Services;
using Microsoft.AspNetCore.Mvc;
using NLog;
using static EnvelopeGenerator.Web.Constants;

namespace EnvelopeGenerator.Web.Controllers
{
    public class EnvelopeController : Controller
    {
        private readonly DatabaseService database;
        private readonly LoggingService logging;
        private readonly Logger logger;
        private readonly ApiService api;

        public EnvelopeController(DatabaseService database, LoggingService logging, ApiService api)
        {
            this.database = database;
            this.logging = logging;
            this.logger = logging.LogConfig.GetLoggerFor(GetType().Name);
            this.api = api;
        }

        [HttpGet]
        [Route("api/envelope/{envelopeKey}")]
        public IActionResult Get(string envelopeKey)
        {
            try
            {
                logger.Info("Handling envelope loading.");

                EnvelopeResponse r = api.EnsureValidEnvelopeKey(envelopeKey);

                // Return the envelope and additional data as json
                return Json(r);

            }
            catch (Exception e)
            {
                // Better error handling & reporting
                logger.Error(e);
                return Problem(
                    statusCode: 500,
                    detail: e.Message,
                    type: ErrorType.ServerError.ToString());

            }
        }

        [HttpPost]
        [Route("api/envelope/{envelopeKey}")]
        public async Task<IActionResult> Update(string envelopeKey)
        {
            try
            {
                logger.Info("Handling envelope saving.");

                EnvelopeResponse r = api.EnsureValidEnvelopeKey(envelopeKey);      

                var Request = ControllerContext.HttpContext.Request;
                var document = api.GetDocument(Request, envelopeKey);

                string? annotationData = await api.EnsureValidAnnotationData(Request);

                if (annotationData == null)
                {
                    throw new ArgumentNullException("AnnotationData");
                }

                database.InsertDocumentStatus(new DocumentStatus()
                {
                    EnvelopeId = r.Envelope.Id,
                    ReceiverId = r.Receiver.Id,
                    Value = annotationData,
                    Status = Common.Constants.DocumentStatus.Signed
                });

                return Ok();
            }
            catch (Exception e)
            {
                // Better error handling & reporting
                logger.Error(e);
                return Problem(
                    statusCode: 500,
                    detail: e.Message,
                    type: ErrorType.ServerError.ToString());
            }
        }
    }
}