using System;
using System.Collections.Generic;
using System.Linq;
using Wayne.Lib;
using Wayne.Lib.StateEngine;
using Wayne.Lib.StateEngine.Generic;
using WayneChina_IcCardReader_SinoChem.MessageEntity.Incoming;
using WayneChina_IcCardReader_SinoChem.MessageEntity.Outgoing;

namespace SinochemInternetPlusApp.States.Shared
{
    class Fueling : State<FuelingPoint>
    {
        private byte sqNo;

        protected override void Enter(StateEntry stateEntry, ref Transition transition)
        {
            base.Enter(stateEntry, ref transition);
            MultiFusionsSupport.UpdateJyInfoToTargetFusionWhenFuelingStarted(Main.CurrentNozzleId, Main.DebugLogger); // should be busy
        }

        protected override void HandleEvent(StateEngineEvent stateEngineEvent, ref Transition transition)
        {
            base.HandleEvent(stateEngineEvent, ref transition);

            if (stateEngineEvent.Type is EventType)
            {
                switch ((EventType)stateEngineEvent.Type)
                {
                    case EventType.NozzleReplaced:
                        MultiFusionsSupport.CopyJyInfoToTargetFusion(Main.CurrentNozzleId, Main.DebugLogger); // should be free
                        
                        if (Main.CurrentEpsTrx != null )
                        {
                            var epsTrxModel = EpsTransactionQuery.RefreshEpsTrx(Main.CurrentEpsTrx.Model.id);
                            
                            Main.DebugLogger.Add($"NozzleReplaced, CurrentEpsTrx.jihao = {Main.CurrentEpsTrx.Model.jihao}, " +
                                $"epsTrxModel.jihao = {epsTrxModel.jihao}, CurrentNozzleId: {Main.CurrentNozzleId}");

                            var associateNozzles = Main.Eps.GetFp(Main.CurrentNozzleId)?.AssociatedNozzles.ToList();
                            if (epsTrxModel.jihao != Main.CurrentNozzleId && !associateNozzles.Contains(epsTrxModel.jihao))
                            {
                                Main.DebugLogger.Add("nozzle Id not match, indoor pay");
                                Main.CurrentEpsTrx.Model.car_number = null;
                                Main.CurrentEpsTrx = null;
                            }
                        }
                        transition = new Transition(this, TransitionType.NozzleReplaced);
                        stateEngineEvent.Handled = true;
                        break;

                    case EventType.DisplayResponseReceived:
                        stateEngineEvent.Handled = true;
                        break;
                    case EventType.ReaderStateChanged:
                        Main.DebugLogger.Add("Unexpected reader state change in Fueling");
                        var e = stateEngineEvent as GenericEvent<CardReaderStateEventArgs>;
                        if (e != null && e.EventArgs != null)
                        {
                            if (e.EventArgs.CardReaderState.State == CardReaderState.CardInserted)
                            {
                                Main.DebugLogger.Add("Unexpected card inserted event in Fueling");
                                e.Handled = true;
                                transition = new Transition(this, TransitionType.CardInserted);
                            }
                            else if (e.EventArgs.CardReaderState.State == CardReaderState.Idle)
                            {
                                Main.DebugLogger.Add("Unexpected card removed event in Fueling");
                                e.Handled = true;
                                Main.RemovePendingBalanceResult();
                                return;
                            }
                        }

                        break;
                    case EventType.OnlineVerification:
                        Main.DebugLogger.Add("Unexpected online verification in Fueling");
                        stateEngineEvent.Handled = true;
                        var result = new CardOnlineVerificationResultRequest(VerificationResult.Failure, 0, "处理错误");
                        Main.SendCommand(result, out sqNo);
                        break;

                    case EventType.CardReaderAck:
                        GenericEvent<CardReaderAckEventArgs> ackEvent = stateEngineEvent as GenericEvent<CardReaderAckEventArgs>;
                        if (ackEvent != null && ackEvent.EventArgs != null)
                        {
                            if (ackEvent.EventArgs.Ack.MessageSeqNumber == sqNo)
                            {
                                Main.DebugLogger.Add("Card reader ack received in Fueling");
                                ackEvent.Handled = true;
                                transition = new Transition(this, TransitionType.Done);
                            }
                        }
                        break;
                }
            }
        }    
    }
}