using System;
using System.Collections.Generic;
using Wayne.Lib;
using Wayne.Lib.StateEngine;
using Wayne.Lib.StateEngine.Generic;

namespace SinochemInternetPlusApp.States.Shared
{
    class AuthorizePump : TimeoutState<FuelingPoint>
    {
        protected override void Enter(StateEntry stateEntry, ref Transition transition)
        {
            base.Enter(stateEntry, ref transition);

            ClearExpiredLastTrx();

            Main.AuthorizePumpAsync(0); // auth unlimited amount
        }

        protected override void HandleNonTimeoutEvent(StateEngineEvent stateEngineEvent, ref Transition transition)
        {
            if (stateEngineEvent.Type is EventType)
            {
                switch ((EventType)stateEngineEvent.Type)
                {
                    case EventType.PumpAuthOk:
                        var genericEvent = stateEngineEvent as GenericEvent<GenericEventArg<string>>;
                        if (genericEvent != null && Main.CurrentEpsTrx != null)
                        {
                            Main.DebugLogger.Add($"Current jihao: {Main.CurrentEpsTrx.Model.jihao}");

                            Main.CurrentEpsTrx.Model.auth_time = genericEvent.EventArgs.Arg;
                            Main.CurrentEpsTrx.Model.trx_status = EpsTrxStatus.Fueling;
                            Main.CurrentEpsTrx.SaveToDb();
                        }
                        //}
                        transition = new Transition(this, TransitionType.PumpAuthOk);
                        stateEngineEvent.Handled = true;
                        break;
                    case EventType.PumpAuthFailed:
                        transition = new Transition(this, TransitionType.PumpAuthFailed);
                        stateEngineEvent.Handled = true;
                        break;
                }
            }
        }

        protected override void Timeout(ref Transition transition)
        {
            transition = new Transition(this, TransitionType.Timeout);
        }

        protected override int TimeoutInterval =>
            TimeoutValues.GetValueInMilliSec(TimeoutValues.FuelingPoint.Shared_AuthorizePump, 10);

        private int expiredTrxInterval = TimeoutValues.GetValueInSec(TimeoutValues.FuelingPoint.__FP_Shared_AuthorizePump_ClearLastTrx, 30 * 60);

        private void ClearExpiredLastTrx()
        {
            if (Main.CurrentEpsTrx != null)
            {
                Main.DebugLogger.Add($"expired interval value is: {expiredTrxInterval}");

                DateTime oldEnoughDatetime = DateTime.Now.AddSeconds(-1 * expiredTrxInterval);
                Main.DebugLogger.Add($" ClearExpiredLastTrx Main.CurrentEpsTrx.Model.created_time: {Main.CurrentEpsTrx.Model.created_time}, " +
                    $"oldEnoughDatetime: {oldEnoughDatetime}");

                if (Main.CurrentEpsTrx.Model.created_time < oldEnoughDatetime)
                {
                    Main.DebugLogger.Add("Set CurrentEpsTrx to null");
                    Main.CurrentEpsTrx = null;
                }
            }
        }
    }
}