using System;
using System.Linq;
using System.Globalization;
using System.Text;
using System.Collections.Generic;
using System.Threading.Tasks;
using Microsoft.Extensions.Logging;
using Microsoft.EntityFrameworkCore;
using AyaNova.Util;
using AyaNova.Models;
//using System.Diagnostics;


namespace AyaNova.Biz
{

    //This class handles word breaking, processing keywords and searching for results
    public static class NotifyEventProcessor
    {
        private static ILogger log = AyaNova.Util.ApplicationLogging.CreateLogger("NotifyEventProcessor");

        //Add operations message 
        public static async Task AddOpsProblemEvent(string message, Exception ex = null)
        {
            if (string.IsNullOrWhiteSpace(message) && ex == null)
                return;

            //Log as a backup in case there is no one to notify and also for the record and support
            if (ex != null)
            {
                log.LogError(ex, $"Ops problem notification: \"{message}\"");
                message += $"\nException error: {ExceptionUtil.ExtractAllExceptionMessages(ex)}";
            }
            else
                log.LogWarning($"Ops problem notification: \"{message}\"");

            await AddEvent(new NotifyEvent() { EventType = NotifyEventType.ServerOperationsProblem, Message = message });
        }


        public static async Task AddEvent(NotifyEvent ev)
        {
            //iterate subs, figure out who gets this event
            //add to table for any that do

            try
            {

                log.LogTrace("Notify set to RUNNING state and starting now");


                using (AyContext ct = AyaNova.Util.ServiceProviderProvider.DBContext)
                {
                    //select all jobs with no deliver date or deliver date no longer in future

                    //### PLAN if it's an smtp delivery that fails and it's to someone who can be delivered in app then it should send an inapp notification of 
                    //delivery failure and still delete the smtp delivery
                    //If it's not possible to notify the person via in app of the failed smtp then perhaps it notifies OPS personnel and biz admin personnel
                    //NEW NOTIFICATION SUBSCRIPTION EVENT TYPE:
                    //OPERATIONS_PROBLEMS - backup, notifications, out of memory, what have you, anyone can subscribe to it regardless of rights
                    //this is just to let people know there is a problem


                }
            }
            catch (Exception ex)
            {

            }
            finally
            {
                log.LogTrace("Notify is done setting to not running state and tagging lastRun timestamp");
                lastRun = DateTime.UtcNow;
                NotifyIsRunning = false;
            }


        }

    }//eoc

}//eons