chaosbot/ChaosBot/Discord/Services/ExperienceHandler.cs

using System;
using System.Linq;
using System.Reflection;
using ChaosBot.Models;
using ChaosBot.Repositories;
using Microsoft.EntityFrameworkCore;
using NLog;

namespace ChaosBot.Discord.Services
{
    public class ExperienceHandler
    {
        private static readonly ILogger _logger = Program.Logger;

        public static async void addXP(ulong DiscordGuildId, ulong DiscordUserId)
        {
            try
            {
                using (ChaosbotContext dbContext = new ChaosbotContext())
                {
                    IQueryable<Experience> ctxUser = dbContext.ExperiencePoints;
                    IQueryable<Experience> usrXp = ctxUser
                        .Where(p => p.DiscordGuildId.Equals(DiscordGuildId))
                        .Where(p => p.DiscordUserId.Equals(DiscordUserId));

                    Experience usrNewXp;
                    if (usrXp.Any())
                    {
                        usrNewXp = usrXp.First();
                        usrNewXp.Amount = usrNewXp.Amount + Convert.ToUInt64(ConfigurationRepository.GetValue<string>("Experience:PerMsg", DiscordGuildId, "0"));
                    }
                    else
                    {
                        usrNewXp = new Experience();
                        usrNewXp.Amount = Convert.ToUInt64(ConfigurationRepository.GetValue<string>("Experience:PerMsg", DiscordGuildId, "0"));
                    }
                    usrNewXp.DiscordGuildId = DiscordGuildId;
                    usrNewXp.DiscordUserId = DiscordUserId;

                    await dbContext.ExperiencePoints.Upsert(usrNewXp)
                        .On(x => new { x.DiscordGuildId, x.DiscordUserId}).RunAsync();
                }
            }
            catch (Exception ex)
            {
                _logger.Error(
                    $"{MethodBase.GetCurrentMethod().ReflectedType.FullName}: Exception [{ex}] thrown, <[{ex.Message}]>.");
            }
        }
    }
}