using System;
using System.Globalization;
using Wayne.Lib;
using Wayne.Lib.Log;

namespace Wayne.ForecourtControl.Fusion
{
    /*internal*/
    public class FUSIONFuelling : IFuellingEx
    {
        // Fields
        private decimal amount;
        private long authorizationId;
        private DateTime completionDateTime;
        private int completionReason;
        private int fuelGrade;
        private int transactionId;
        private int fuellingSequenceNumber;
        private int fuelPeriodId;
        private FUSIONManager manager;
        private int nfsFillingType;
        private FUSIONPump nfsPump;
        private INozzle nozzle;
        private PresetType presetType;
        private decimal presetValue;
        private decimal price;
        private PriceGroup priceGroup;
        private decimal quantity;
        private int reservedBy;
        private int authorizedBy;
        private FuellingState state;
        private FuellingType type;
        private ushort _CRC;
        private string signedReceiptLines;
        private string signedReceiptLinesWide;
        private byte reservingDeviceId;
        private FuellingType reservingType;
        internal string origMessageXml = null;
        private readonly DebugLogger debugLogger;

        // Methods
        internal FUSIONFuelling(FUSIONManager manager, FUSIONPump pump)
        {
            this.manager = manager;
            this.nfsPump = pump;
            this.fuelGrade = 1;
            this.presetType = PresetType.Amount;
            this.priceGroup = ForecourtControl.PriceGroup.Unknown;
            this.WritableReservedBy = 0;
            this.WritableAuthorizedBy = 0;
            this.WritableState = FuellingState.Unknown;
            debugLogger = manager.DebugLogger;
        }

        internal void Dispose()
        {
            this.manager = null;
        }

        private void DebugLog(string s)
        {
            if (debugLogger.IsActive())
                debugLogger.Add(s);
        }

        /// <summary>
        /// Gets the orig message XML.
        /// </summary>
        /// <value>
        /// The orig message XML.
        /// </value>
        public string OrigMessageXml
        {
            get { return origMessageXml; }
        }

        public void ReserveAsync(EventHandler<AsyncCompletedEventArgs> fuellingReserveCompleted, object userToken)
        {
            // call LockFuelSaleTrx
            // this.WritableReservedBy = this.manager.Id;
            this.manager.ifsfManager.LockFuelSaleTrx(((FUSIONPump)(this.Pump)).realId, this.TransactionId, (int)(this.AuthorizationId), fuellingReserveCompleted, userToken, this);
        }

        private void SendFillingRequest(EventHandler<AsyncCompletedEventArgs> requestCompleted, object userToken, ushort fid)
        {
            throw new NotImplementedException("SendFillingRequest - TODO");
        }

        public void SetAsPaidAsync(EventHandler<AsyncCompletedEventArgs> requestCompleted, object userToken)
        {
            // call ClearFuelSaleTrx
            DebugLog(string.Format("SetAsPaidAsync: transactionId={0}, fuellingSequenceNumber={1}, State={2}", this.transactionId, this.fuellingSequenceNumber, State));
            this.manager.ifsfManager.ClearFuelSaleTrx(((FUSIONPump)(this.Pump)).realId, this.TransactionId, (int)(this.AuthorizationId), "", requestCompleted, userToken, this);
        }

        public void SetAsPaidAsync(string note, EventHandler<AsyncCompletedEventArgs> requestCompleted, object userToken)
        {
            // call ClearFuelSaleTrx
            DebugLog(string.Format("SetAsPaidAsync: transactionId={0}, fuellingSequenceNumber={1}, State={2}", this.transactionId, this.fuellingSequenceNumber, State));
            this.manager.ifsfManager.ClearFuelSaleTrx(((FUSIONPump)(this.Pump)).realId, this.TransactionId, (int)(this.AuthorizationId), note, requestCompleted, userToken, this);
        }

        public override string ToString()
        {
            return this.ToString("", CultureInfo.InvariantCulture);
        }

        public string ToString(IFormatProvider provider)
        {
            return this.ToString("", provider);
        }

        public string ToString(string format)
        {
            return this.ToString(format, CultureInfo.InvariantCulture);
        }

        public string ToString(string format, IFormatProvider provider)
        {
            return ("Fuelling, Pump=" + this.nfsPump.Id.ToString(CultureInfo.InvariantCulture) + " SqN=" + this.fuellingSequenceNumber.ToString(CultureInfo.InvariantCulture) + " AuthId=" + this.authorizationId.ToString(CultureInfo.InvariantCulture));
        }

        public void TransferAsync(EventHandler<AsyncCompletedEventArgs> requestCompleted, object userToken)
        {
            // does nothing on transfer operation but setting fuelling on state Transferred
            DebugLog(string.Format("TransferAsync: transactionId={0}, fuellingSequenceNumber={1}, State={2}", this.transactionId, this.fuellingSequenceNumber, State));
            if (this.State != FuellingState.Transferred)
            {
                this.WritableState = FuellingState.Transferred;
                this.nfsPump.FireFuellingStateChange(this, this.WritableState);
            }
            if (requestCompleted != null)
                requestCompleted(this, new AsyncCompletedEventArgs(true, userToken));
        }

        public void UndoTransferAsync(EventHandler<AsyncCompletedEventArgs> requestCompleted, object userToken)
        {
            // does nothing on undotransfer operation but resetting fuelling on state PayableTransaction
            if (this.State == FuellingState.Transferred)
                this.WritableState = FuellingState.PayableTransaction;
            if (requestCompleted != null)
                requestCompleted(this, new AsyncCompletedEventArgs(true, userToken));
        }

        public void UnreserveAsync(EventHandler<AsyncCompletedEventArgs> requestCompleted, object userToken)
        {
            // call UnlockFuelSaleTrx
            //this.WritableReservedBy = 0;
            this.manager.ifsfManager.UnlockFuelSaleTrx(((FUSIONPump)(this.Pump)).realId, this.TransactionId, (int)(this.AuthorizationId), requestCompleted, userToken, this);
        }

        // Properties
        public decimal Amount
        {
            get
            {
                return this.amount;
            }
        }

        public long AuthorizationId
        {
            get
            {
                return this.authorizationId;
            }
        }

        public DateTime CompletionDateTime
        {
            get
            {
                return this.completionDateTime;
            }
        }

        public int CompletionReason
        {
            get
            {
                return this.completionReason;
            }
        }

        private bool Disposed
        {
            get
            {
                return (this.manager == null);
            }
        }

        public int FuelGrade
        {
            get
            {
                if (manager.FuelGradeShift != 0)
                    return this.fuelGrade + manager.FuelGradeShift;
                else
                    return this.fuelGrade;
            }
        }

        public int TransactionId
        {
            get
            {
                return this.transactionId;
            }
        }

        public int FuellingSequenceNumber
        {
            get
            {
                return this.fuellingSequenceNumber;
            }
        }

        public int FuelPeriodId
        {
            get
            {
                return this.fuelPeriodId;
            }
        }

        internal int NfsFillingType
        {
            get
            {
                return this.nfsFillingType;
            }
            set
            {
                this.nfsFillingType = value;
            }
        }

        public INozzle Nozzle
        {
            get
            {
                return this.nozzle;
            }
        }

        public PresetType PresetType
        {
            get
            {
                return this.presetType;
            }
        }

        public decimal PresetValue
        {
            get
            {
                return this.presetValue;
            }
        }

        public decimal Price
        {
            get
            {
                return this.price;
            }
        }

        public int PriceGroup
        {
            get
            {
                return (int)this.priceGroup;
            }
        }

        public IPump Pump
        {
            get
            {
                return this.nfsPump;
            }
        }

        public PumpAccumulatorReading PumpAccumulator
        {
            get
            {
                return null;
            }
        }

        public decimal Quantity
        {
            get
            {
                return this.quantity;
            }
        }

        public int ReservedBy
        {
            get
            {
                return this.reservedBy;
            }
        }

        public int AuthorizedBy
        {
            get
            {
                return this.authorizedBy;
            }
        }

        public FuellingState State
        {
            get
            {
                return this.state;
            }
        }

        public FuellingType Type
        {
            get
            {
                return this.type;
            }
        }

        public ushort CRC
        {
            get
            {
                return this._CRC;
            }
        }

        public string SignedReceiptLines
        {
            get
            {
                return this.signedReceiptLines;
            }
        }
        
        public string SignedReceiptLinesWide
        {
            get
            {
                return this.signedReceiptLinesWide;
            }
        }

        public byte ReservingDeviceId
        {
            get { return reservingDeviceId; }
        }

        internal decimal WritableAmount
        {
            get
            {
                return this.amount;
            }
            set
            {
                this.amount = value;
            }
        }

        internal long WritableAuthorizationId
        {
            get
            {
                return this.authorizationId;
            }
            set
            {
                this.authorizationId = value;
            }
        }

        internal DateTime WritableCompletionDateTime
        {
            get
            {
                return this.completionDateTime;
            }
            set
            {
                this.completionDateTime = value;
            }
        }

        internal int WritableCompletionReason
        {
            get
            {
                return this.completionReason;
            }
            set
            {
                this.completionReason = value;
            }
        }

        internal int WritableFuelGrade
        {
            get
            {
                return this.fuelGrade;
            }
            set
            {
                this.fuelGrade = value;
            }
        }

        internal int WritableTransactionId
        {
            get
            {
                return this.transactionId;
            }
            set
            {
                this.transactionId = value;
            }
        }

        internal int WritableFuellingSequenceNumber
        {
            get
            {
                return this.fuellingSequenceNumber;
            }
            set
            {
                this.fuellingSequenceNumber = value;
            }
        }

        internal int WritableFuelPeriodId
        {
            get
            {
                return this.fuelPeriodId;
            }
            set
            {
                this.fuelPeriodId = value;
            }
        }

        internal INozzle WritableNozzle
        {
            get
            {
                return this.nozzle;
            }
            set
            {
                this.nozzle = value;
            }
        }

        internal PresetType WritablePresetType
        {
            get
            {
                return this.presetType;
            }
            set
            {
                this.presetType = value;
            }
        }

        internal decimal WritablePresetValue
        {
            get
            {
                return this.presetValue;
            }
            set
            {
                this.presetValue = value;
            }
        }

        internal decimal WritablePrice
        {
            get
            {
                return this.price;
            }
            set
            {
                this.price = value;
            }
        }

        internal PriceGroup WritablePriceGroup
        {
            get
            {
                return this.priceGroup;
            }
            set
            {
                this.priceGroup = value;
            }
        }

        internal decimal WritableQuantity
        {
            get
            {
                return this.quantity;
            }
            set
            {
                this.quantity = value;
            }
        }

        internal int WritableReservedBy
        {
            get
            {
                return this.reservedBy;
            }
            set
            {
                this.reservedBy = value;
            }
        }

        internal int WritableAuthorizedBy
        {
            get
            {
                return this.authorizedBy;
            }
            set
            {
                this.authorizedBy = value;
            }
        }

        internal FuellingState WritableState
        {
            get
            {
                return this.state;
            }
            set
            {
                this.state = value;
            }
        }

        internal FuellingType WritableType
        {
            get
            {
                return this.type;
            }
            set
            {
                this.type = value;
            }
        }

        internal ushort WritableCRC
        {
            get
            {
                return this._CRC;
            }
            set
            {
                this._CRC = value;
            }
        }

        internal string WritableSignedReceiptLines
        {
            get
            {
                return this.signedReceiptLines;
            }
            set
            {
                this.signedReceiptLines = value;
            }
        }

        internal string WritableSignedReceiptLinesWide
        {
            get
            {
                return this.signedReceiptLinesWide;
            }
            set
            {
                this.signedReceiptLinesWide = value;
            }
        }

        internal byte WritableReservingDeviceId
        {
            get { return reservingDeviceId; }
            set { reservingDeviceId = value; }
        }

        internal FuellingType WritableReservingType
        {
            get { return reservingType; }
            set { reservingType = value; }
        }

        public int convertStatus(int status)
        {
            // TODO
            return status;
        }

        #region IFuelling Members


        public byte PriceRevision
        {
            get { return 0; }
        }

        #endregion
    }
}