using Applications.FDC;
using Edge.Core.Processor;using Edge.Core.IndustryStandardInterface.Pump;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace VeederRootAtgConsoleDispenserInterfaceApp
{
    public class App : IAppProcessor
    {
        public string MetaConfigName { get; set; }
        private bool isStopped = false;

        

        public void Init(IEnumerable<IProcessor> processors)
        {
            var fdcServerApp = processors.OfType<FdcServerHostApp>().FirstOrDefault();
            if (fdcServerApp == null) throw new ArgumentNullException("Can't find the FdcServerHostApp from processors");
            var veederRootAtgConsoleHandler = processors.OfType<VeederRoot_ATG_Console.Handler>().FirstOrDefault();
            if (veederRootAtgConsoleHandler == null) throw new ArgumentNullException("Can't find the VeederRoot_ATG_Console.Handler from processors");
            fdcServerApp.OnStateChange += async (s, a) =>
            {
                if (this.isStopped) return;
                var pump = s as IFdcPumpController;
                if (a.NewPumpState == Wayne.FDCPOSLibrary.LogicalDeviceState.FDC_AUTHORISED)
                    await veederRootAtgConsoleHandler.NotifyFuelTrxEventToAtgConsoleAsync(
                            new VeederRoot_ATG_Console.MessageEntity.DispenserInterface.Outgoing.StartEventReportRequest(
                                9, 0, 0, (byte)pump.PumpId));
            };
            fdcServerApp.OnCurrentFuellingStatusChange += async (s, a) =>
            {
                if (this.isStopped) return;
                var pump = s as IFdcPumpController;
                if (a.Transaction.Finished == true)
                    await veederRootAtgConsoleHandler.NotifyFuelTrxEventToAtgConsoleAsync(
                            new VeederRoot_ATG_Console.MessageEntity.DispenserInterface.Outgoing.StopEventReportRequest(
                                1, 0, 0, (byte)pump.PumpId,
                                VeederRoot_ATG_Console.MessageEntity.DispenserInterface.Outgoing.StopEventReportRequest.FuelingInfo.SingleProductDispensed,
                                new List<Tuple<byte, double, double>>() {
                                    new Tuple<byte, double, double>(
                                        9,
                                        a.Transaction.VolumeTotalizer??-1,
                                        a.Transaction.Volumn) })
                                );
            };
        }

        public async Task<bool> Start()
        {
            this.isStopped = false;
            return true;
        }

        public async Task<bool> Stop()
        {
            this.isStopped = true;
            return true;
        }
    }
}