using Edge.Core.Parser.BinaryParser.Util;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Wayne_Pump_Dart.MessageEntity.Incoming
{
    /// <summary>
    /// The pump sends this transaction if Request Total Counters is received.
    /// </summary>
    public class PumpParameters_TransactionData
    {
        private TransactionData transactionData;
        public PumpParameters_TransactionData(TransactionData transactionData)
        {
            if (transactionData.TransactionNumber != 0x07)
                throw new ArgumentException("PumpParameters_TransactionData must have transaction number 0x07");
            if (transactionData.Length != 51)
                throw new ArgumentException("TotalCounters_TransactionData must have length 51");
            this.transactionData = transactionData;
        }

        /// <summary>
        /// Number of decimals in volume (0-8)
        /// </summary>
        public byte VolumeDecimalPoint { get { return this.transactionData.RawData.Skip(22).First(); } }

        /// <summary>
        /// Number of decimals in amount  (0-8)
        /// </summary>
        public byte AmountDecimalPoint { get { return this.transactionData.RawData.Skip(23).First(); } }

        /// <summary>
        /// Number of decimals in unit price (0-4)
        /// </summary>
        public byte UnitPriceDecimalPoint { get { return this.transactionData.RawData.Skip(24).First(); } }


        /// <summary>
        /// Maximum amount
        /// </summary>
        public int MaxAmount { get { return this.transactionData.RawData.Skip(30).Take(4).GetBCD(); } }

        /// <summary>
        /// Existing grade per nozzle number
        /// </summary>
        public string Grade
        {
            get { return this.transactionData.RawData.Skip(36).Take(15).ToArray().GetBCDString(); }
        }
    }
}