using System;
using System.Threading;
using System.Threading.Tasks;

namespace Pingerino.Services.Interfaces
{
    public interface IPingService : IDisposable
    {
        event EventHandler<PingResultEventArgs> PingCompleted;
        event EventHandler<NetworkStatisticsEventArgs> StatisticsUpdated;
        
        System.Threading.Tasks.Task StartPingingAsync(string ipAddress, int intervalMs, CancellationToken cancellationToken = default);
        System.Threading.Tasks.Task StopPingingAsync();
        System.Threading.Tasks.Task<PingResult> PingOnceAsync(string ipAddress, CancellationToken cancellationToken = default);
        void ClearStatistics();
        NetworkStatistics GetCurrentStatistics();
        bool IsRunning { get; }
    }

    public class PingResultEventArgs : EventArgs
    {
        public PingResult Result { get; }
        public DateTime Timestamp { get; }

        public PingResultEventArgs(PingResult result, DateTime timestamp)
        {
            Result = result;
            Timestamp = timestamp;
        }
    }

    public class NetworkStatisticsEventArgs : EventArgs
    {
        public NetworkStatistics Statistics { get; }

        public NetworkStatisticsEventArgs(NetworkStatistics statistics)
        {
            Statistics = statistics;
        }
    }

    public class PingResult
    {
        public string IpAddress { get; set; }
        public bool IsSuccess { get; set; }
        public long RoundTripTime { get; set; }
        public string Status { get; set; }
        public string ErrorMessage { get; set; }
    }

    public class NetworkStatistics
    {
        public double Jitter { get; set; }
        public double PacketLoss { get; set; }
        public long MaxPing { get; set; }
        public long MinPing { get; set; }
        public double AveragePing { get; set; }
        public double MaxJitter { get; set; }
        public double MinJitter { get; set; }
        public double AverageJitter { get; set; }
        public double MaxPacketLoss { get; set; }
        public double MinPacketLoss { get; set; }
        public double AveragePacketLoss { get; set; }
        public int TotalPings { get; set; }
        public int SuccessfulPings { get; set; }
    }
}