using MediatR;
using Sledgemapper.Api.Data;
using Sledgemapper.Shared.Entities;
using System.Linq;
using System.Text.Json;
using System.Threading;
using System.Threading.Tasks;

namespace Sledgemapper.Api.Handlers
{
    public class SaveDeleteOverlay : INotificationHandler<DeleteOverlayNotification>
    {
        private readonly MyDbContext _dbcontext;

        public SaveDeleteOverlay(MyDbContext dbcontext) => _dbcontext = dbcontext;

        public async Task Handle(DeleteOverlayNotification notification, CancellationToken cancellationToken)
        {
            var jsonString = JsonSerializer.Serialize<Overlay>(notification.Overlay);
            var session = _dbcontext.Sessions.First(m=>m.SessionName== notification.SessionName);

            _dbcontext.MapLogs.Add(new Sledgemapper.Api.Models.MapLog
            {
                Operation = "D",
                SessionId = session.SessionId,
                Type = "O",
                Timestamp = notification.Timestamp,
                Object = jsonString,
                UserId=notification.UserId
            });

            await _dbcontext.SaveChangesAsync();
        }
    }
}