using System;
using System.Threading.Tasks;
using Comal.TaskScheduler.Shared;
using InABox.IPC;
using InABox.Clients;
using InABox.Core;
using InABox.Rpc;

namespace PRSServer
{
    internal class ScheduleEngine : Engine<ScheduleServerProperties>
    {
        private readonly Scheduler scheduler = new();

        private void CheckConnection()
        {
            // Wait for server connection
            while (!Client.Ping())
            {
                Logger.Send(LogType.Error, "", "Database server unavailable. Trying again in 30 seconds...");
                Task.Delay(30_000).Wait();
                Logger.Send(LogType.Information, "", "Retrying connection...");
            }

            ClientFactory.SetBypass();
        }

        public override void Run()
        {
            try
            {
                if (string.IsNullOrWhiteSpace(Properties.Server))
                {
                    Logger.Send(LogType.Error, "", "Server is blank!");
                    return;
                }

                var transport = new RpcClientPipeTransport(DatabaseServerProperties.GetPipeName(Properties.Server));
                ClientFactory.SetClientType(typeof(RpcClient<>), Platform.SchedulerEngine, Version, transport);

                CheckConnection();

                Logger.Send(LogType.Information, "", "Starting Scheduler: ");
                scheduler.Start();
            }
            catch (Exception ex)
            {
                Logger.Send(LogType.Error, "", "Error: " + ex.Message + "\n" + ex.StackTrace);
                throw ex;
            }
        }

        public override void Stop()
        {
            scheduler.Stop();
        }
    }
}