using EnvelopeGenerator.Common;
using EnvelopeGenerator.Web.Models;
using EnvelopeGenerator.Web.Services;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Primitives;
using System.Diagnostics;

namespace EnvelopeGenerator.Web.Controllers
{
    public class HomeController : BaseController
    {
        private readonly EnvelopeService _envelopeService;

        public HomeController(DatabaseService databaseService, LoggingService loggingService, EnvelopeService envelopeService): base(databaseService, loggingService)
        {
            _envelopeService = envelopeService;
        }

        [HttpGet]
        [Route("/")]
        public IActionResult Index()
        {
            return View();
        }

        [HttpPost]
        [Route("/")]
        public IActionResult DebugEnvelopes()
        {
            try
            {
                StringValues passwordFromForm = HttpContext.Request.Form["password"];
                string passwordFromConfig = database.GetAppSetting("Config:AdminPassword");

                if (passwordFromConfig == null)
                {
                    ViewData["error"] = "No admin password configured!";
                    return View("Index");
                }

                if (passwordFromForm.Count != 1)
                {
                    ViewData["error"] = "No admin password configured!";
                    return View("Index");
                }

                string password = passwordFromForm[0];

                if (password == null)
                {
                    ViewData["error"] = "No password supplied!";
                    return View("Index");
                }

                if (password != passwordFromConfig)
                {
                    ViewData["error"] = "Wrong Password!";
                    return View("Index");
                }

                List<Envelope> envelopes = _envelopeService.LoadEnvelopes();

                return View(envelopes);
            } 
            catch (Exception e)
            {
                ViewData["error"] = "Unknown error!";
                return View("Index");
            }         
        }

        [HttpGet]
        [Route("/EnvelopeKey/{EnvelopeReceiverId}")]
        public IActionResult ShowEnvelope()
        {
            string envelopeKey = (string)HttpContext.Request.RouteValues["EnvelopeReceiverId"];
            EnvelopeResponse response = _envelopeService.LoadEnvelope(envelopeKey);

            if (response.Envelope.UseAccessCode)
            {               
                bool accessCodeAlreadyRequested = database.Models.receiverModel.AccessCodeAlreadyRequested(response.Receiver.Email, response.Envelope.Id);

                if (!accessCodeAlreadyRequested)
                {
                    // Send email with password
                    bool actionResult = database.Services.actionService.RequestAccessCode(response.Envelope, response.Receiver);
                    bool result = database.Services.emailService.SendDocumentAccessCodeReceivedEmail(response.Envelope, response.Receiver);
                }

                return Redirect($"/EnvelopeKey/{envelopeKey}/Locked");
            } 
            else
            {
                ViewData["EnvelopeKey"] = envelopeKey;
                return View();
            }      
        }

        [HttpPost]
        [Route("/EnvelopeKey/{EnvelopeReceiverId}/Locked")]
        public IActionResult ShowEnvelopePost()
        {
            string envelopeKey = (string)HttpContext.Request.RouteValues["EnvelopeReceiverId"];

            StringValues accessCodeFromForm = HttpContext.Request.Form["access_code"];

            if (accessCodeFromForm.Count == 0)
            {
                return Redirect($"/EnvelopeKey/{envelopeKey}/Locked");
            }

            if (accessCodeFromForm.Count > 1)
            {
                return Redirect($"/EnvelopeKey/{envelopeKey}/Locked");
            }          

            EnvelopeResponse response = _envelopeService.LoadEnvelope(envelopeKey);
            string accessCode = response.Receiver.AccessCode;

            if (string.IsNullOrEmpty(accessCodeFromForm[0]))
            {
                return Redirect($"/EnvelopeKey/{envelopeKey}/Locked");
            }

            if (accessCode.Equals(accessCodeFromForm[0], StringComparison.Ordinal))
            {
                bool actionResult = database.Services.actionService.EnterCorrectAccessCode(response.Envelope, response.Receiver);
                ViewData["EnvelopeKey"] = envelopeKey;
                return View("ShowEnvelope");
            } 
            else
            {
                bool actionResult = database.Services.actionService.EnterIncorrectAccessCode(response.Envelope, response.Receiver);
                return Redirect($"/EnvelopeKey/{envelopeKey}/Locked");

            }
        }

        [HttpGet]
        [Route("/EnvelopeKey/{EnvelopeReceiverId}/Locked")]
        public IActionResult EnvelopeLocked()
        {
            ViewData["EnvelopeKey"] = HttpContext.Request.RouteValues["EnvelopeReceiverId"];

            return View();
        }



        [HttpGet]
        [Route("/EnvelopeKey/{EnvelopeReceiverId}/Success")]
        public IActionResult EnvelopeSigned()
        {
            ViewData["EnvelopeKey"] = HttpContext.Request.RouteValues["EnvelopeReceiverId"];

            return View();
        }


        [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
        public IActionResult Error()
        {
            return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
        }
    }
}