using Serilog;
using System;
using System.Linq;
using System.Threading.Tasks;
namespace LCU.Api.Internal.MaidBotApi.Services;

public class LogDistributionService : ILogDistributionService
{
    private readonly IEventLogService _eventLogService;
    private readonly ILoggingMatrixService _loggingMatrixService;
    private readonly INotificationsApiService _notificationsApiService;

    public LogDistributionService(IEventLogService eventLogService,
                                  ILoggingMatrixService loggingMatrixService,
                                  INotificationsApiService notificationsApiService)
    {
        _eventLogService = eventLogService;
        _loggingMatrixService = loggingMatrixService;
        _notificationsApiService = notificationsApiService;
    }

    public async Task HandleLogDistribution()
    {
        try
        {
            var eventLogs = await _eventLogService.GetAsync();
            if(eventLogs == null || !eventLogs.Any())
            {
                return;
            }

            var loggingMatrixs = await _loggingMatrixService.GetActiveAsync();
            if (loggingMatrixs == null || !loggingMatrixs.Any())
            {
                return;
            }

            foreach (var loggingMatrix in loggingMatrixs)
            {
                var matrixEventLogs = eventLogs.Where(eventLog => eventLog.Application == loggingMatrix.Application &&
                                                                  eventLog.Level == loggingMatrix.Level &&
                                                                  eventLog.Group == loggingMatrix.Group).ToList();

                if (!matrixEventLogs.Any())
                {
                    continue;
                }

                await _notificationsApiService.SendNotificationAsync(loggingMatrix, matrixEventLogs);
            }

            _eventLogService.DeleteMany(eventLogs.ToList());
        }
        catch (Exception exception)
        {
            Log.Error(exception, "Failure to Handle Log Distribution.");            
        }
    }
}