using EnvelopeGenerator.Common;
using EnvelopeGenerator.Web.Services;
using Microsoft.AspNetCore.Mvc;

namespace EnvelopeGenerator.Web.Controllers
{
    public class EnvelopeController : BaseController
    {
        private readonly EnvelopeService envelopeService;
        private readonly ActionService actionService;

        public EnvelopeController(DatabaseService database, LoggingService logging, EnvelopeService envelope) : base(database, logging)
        {
            envelopeService = envelope;
            actionService = database.Services?.actionService;
        }

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

                // Validate Envelope Key and load envelope
                envelopeService.EnsureValidEnvelopeKey(envelopeKey);
                EnvelopeResponse response = envelopeService.LoadEnvelope(envelopeKey);
            
                if (envelopeService.ReceiverAlreadySigned(response.Envelope, response.Receiver.Id) == true)
                {
                    return Problem(statusCode: 403);
                }          

                logger.Debug("Loaded envelope [{0}] for receiver [{1}]", response.Envelope.Id, response.Envelope.Id);
                return Json(response);
            }
            catch (Exception e)
            {
                return ErrorResponse(e);
            }
        }

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

                // Validate Envelope Key and load envelope
                envelopeService.EnsureValidEnvelopeKey(envelopeKey);
                EnvelopeResponse response = envelopeService.LoadEnvelope(envelopeKey);

                // Again check if receiver has already signed
                if (envelopeService.ReceiverAlreadySigned(response.Envelope, response.Receiver.Id) == true)
                {
                    return Problem(statusCode: 403);
                }

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

                string annotationData = await envelopeService.EnsureValidAnnotationData(Request);

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

                var signResult = actionService?.SignEnvelope(response.Envelope, response.Receiver);

                return Ok(new object());
            }
            catch (Exception e)
            {
                return ErrorResponse(e);
            }
        }
    }
}