using EnVisage.Code.Hubs.Notifications;
using EnVisage.Models;
using Microsoft.AspNet.SignalR;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Web;
using System.Web.Script.Serialization;

namespace EnVisage.Code.Hubs.Notifications
{
   public class NotificationRouter
    {
        private enum Route{
            Send=1,
            Remove=2
        }
        public static void removeNotification(NotificationModel notification)
        {
            if (notification.Actions == null)
                return;
            foreach (NotificationControlModel ncm in notification.Actions)
            {
                switch (ncm.HowToSend)
                {
                    case NotificationHowToSend.Email:
                        //remove notification email here
                        break;
                    case NotificationHowToSend.Text:
                        //remove text here
                        break;
                    case NotificationHowToSend.Web:
                        processClientNotification(notification, Route.Remove);
                        break;
                    default:
                        //remove client update as default
                        break;
                }
            }
        }
        public static void sentNotification(NotificationModel notification)
        {
            foreach (NotificationControlModel ncm in notification.Actions) {
                switch (ncm.HowToSend)
                {
                    case NotificationHowToSend.Email:
                        string emailAddress = getUserEmail(notification.ParentId);
                        if (emailAddress != null)
                            MailManager.SendMessage(notification.title, emailAddress, notification.description);
                        break;
                    case NotificationHowToSend.Text:
                        //send text here
                        break;
                    case NotificationHowToSend.Web:
                        processClientNotification(notification,Route.Send);
                        break;
                    default:
                        //send client update as default
                        break;
                }
            }
        }
        private static string getUserEmail(Guid UserID)
        {
            var DbContext = new EnVisageEntities();
            AspNetUser User=DbContext.AspNetUsers.Find(UserID.ToString());
            if (User != null)
                return User.Email;
            return null;
        }
        private static void processClientNotification(NotificationModel notification, Route task)
        {
            switch (notification.type)
            {
                case NotificationType.Task:
                    if (task == Route.Remove)
                    {
                        ClientNotificationHub h = new ClientNotificationHub();
                        h.TaskFinished(notification.Id, notification);
                       
                    }
                    else
                    {
                        ClientNotificationHub h = new ClientNotificationHub();
                        h.TaskStarted(notification.Id, notification);
                        
                    }
                    break;
                case NotificationType.System:
                    //send client notification for system
                    break;
                case NotificationType.User:
                    if (task == Route.Remove)
                    {
                        ClientNotificationHub h = new ClientNotificationHub();
                        h.TaskFinished(notification.Id, notification);

                    }
                    else
                    {
                        ClientNotificationHub h = new ClientNotificationHub();
                        h.TaskStarted(notification.Id, notification);

                    }
                    break;
                case NotificationType.Workflow:
                    //send client notification for workflow
                    break;
                default:
                    //send client update as default
                    break;
            }
        }
    }
}