using System.Web.Mvc;
using Newtonsoft.Json;
using Orchard;
using Orchard.Data;
using Orchard.Email.Models;
using Orchard.Localization;
using Orchard.Security;
using Orchard.UI.Admin;
using Orchard.UI.Notify;
using Orchard.Workflows.Models;
using Upgrade.Services;

namespace Upgrade.Controllers {
    [Admin]
    public class MessagingController : Controller {
        private readonly IUpgradeService _upgradeService;
        private readonly IOrchardServices _orchardServices;
        private readonly IRepository<ActivityRecord> _repository;

        public MessagingController(
            IUpgradeService upgradeService,
            IOrchardServices orchardServices,
            IRepository<ActivityRecord> repository) {
            _upgradeService = upgradeService;
            _orchardServices = orchardServices;
            _repository = repository;
        }

        public Localizer T { get; set; }

        public ActionResult Index() {
            var found = false;
            _upgradeService.ExecuteReader("SELECT * FROM " + _upgradeService.GetPrefixedTableName("Orchard_Workflows_ActivityRecord")  + " WHERE Name = 'SendEmail'",
                (reader, connection) => {
                    found = true;
                });

            if (!found) {
                _orchardServices.Notifier.Warning(T("This step is unnecessary as no Send Email activities were found."));
            }

            return View();
        }

        [HttpPost, ActionName("Index")]
        public ActionResult IndexPOST() {
            if (!_orchardServices.Authorizer.Authorize(StandardPermissions.SiteOwner, T("Not allowed to upgrade.")))
                return new HttpUnauthorizedResult();

            _upgradeService.ExecuteReader("SELECT * FROM " + _upgradeService.GetPrefixedTableName("Orchard_Workflows_ActivityRecord") + " WHERE Name = 'SendEmail'",
                (reader, connection) => {
                    var record = _repository.Get((int) reader["Id"]);

                    if (record == null) {
                        return;
                    }

                    var state = JsonConvert.DeserializeAnonymousType(record.State, new {
                        Body = "",
                        Subject = "",
                        Recipient = "",
                        RecipientOther = "",
                    });

                    var newState = new EmailMessage {
                        Body = state.Body,
                        Subject = state.Subject
                    };

                    if (!newState.Body.StartsWith("<p ")) {
                        newState.Body =
                            newState.Body
                            + System.Environment.NewLine;
                    }

                    if (state.Recipient == "owner") {
                        newState.Recipients = "{Content.Author.Email}";
                    }
                    else if (state.Recipient == "author") {
                        newState.Recipients = "{User.Current.Email}";
                    }
                    else if (state.Recipient == "admin") {
                        newState.Recipients = "{Site.SuperUser.Email}";
                    }
                    else if (state.Recipient == "other") {
                        newState.Recipients = state.RecipientOther;
                    }

                    record.State = JsonConvert.SerializeObject(newState);
                });

            _orchardServices.Notifier.Information(T("Email activities updated successfully"));

            return RedirectToAction("Index");
        }
    }
}