using System;
using System.Collections.Generic;
using log4net;
using TracingDB.Entities;

namespace TracingDB
{
	public class BatteryAndFlowtubeInfo
	{
        static readonly ILog log = LogManager.GetLogger(typeof(BatteryAndFlowtubeInfo));

        /// Constants
        public const string VitzrocellBatteryPartNr = "68118221";
        public const string TadiranBatteryPartNr = "68117469";

        public string PcbNumber;            /// Unique PCB number of the water meter
		public string BattSapPartNr;        /// Battery SAP part number
		public int BattBatchNr;             /// Batch number (purchase order)
		public string BattMMYY;             /// Production date
		public string BattSupplier;         /// Supplier
        public string FlowtubeSapPartNr;    /// Flowtube SAP part number
        public bool IsPorexFlowtube;        ///
        public string PrintedInfo;          /// 'T', 'Vi', '-', 'T/P', 'Vi/P' or '-/P'
        public DateTime TimeStamp;          /// Record creation time

        bool complete { get { return (PcbNumber != null) && (BattSapPartNr != null) && (BattBatchNr != 0) && (BattMMYY != null) && (BattSupplier != null); } }


		public BatteryAndFlowtubeInfo()
		{
            TimeStamp = DateTime.Now;
            PrintedInfo = "-";
		}


		/// <summary>
		/// Search MySQL DB and get battery info, add it into the record.
		/// </summary>
		/// <returns>true when successful</returns>
        public static BatteryAndFlowtubeInfo GetBatteryAndFlowtubeInfo(string pcbNumber, IList<WMPart> parts, string porexSapNumbers)
		{
            if (string.IsNullOrEmpty(pcbNumber))
            {
                log.ErrorFormat("Invalid PcbBr, no battery info.");
                return null;
            }

            BatteryAndFlowtubeInfo info = new BatteryAndFlowtubeInfo() { PcbNumber = pcbNumber };

			try
			{
                bool error = false;

                foreach (var part in parts)
				{
                    if (part.CodeLocation == CodeLocation.OnPart)
                    {
                        if (porexSapNumbers.Contains(part.Name))
                        {
                            info.IsPorexFlowtube = true;
                            info.FlowtubeSapPartNr = part.Name;
                        }
                    }

                    if (!string.IsNullOrEmpty(part.OraDBType))
                    {
                        string[] oraItems = part.OraDBType.Split(new char[] { ' ' });
                        string oraType = oraItems[0];
                        string oraDescr = (oraItems.Length > 1) ? oraItems[1] : string.Empty;

                        if ((oraType == "Batt") || (oraType == "Batt1") || (oraType == "Batt2"))
                        {
                            if (info.BattSapPartNr != null) { error = true; break; }
                            info.BattSapPartNr = part.Name;
                            int battBatchNr;
                            info.BattBatchNr = int.TryParse(part.Code, out battBatchNr) ? battBatchNr : 1;
                            info.BattSupplier = oraDescr;           /// Should be "TADIRAN" or "VITZROCELL"
                        }
                    }

                    if (part.CodeType == CodeType.DateMMYY)
                    {
                        if (info.BattMMYY != null) { error = true; break; }
                        info.BattMMYY = part.Code;
                    }
				}

                if (error || !info.complete)
				{
                    log.ErrorFormat("Battery info. for PcbNr={0} wasn't found in MySQL database", info.PcbNumber);
                    return null;
				}

                ///
                /// Set battery information printed on labels
                ///
                if (info.BattSupplier == "VITZROCELL")
                {
                    info.PrintedInfo = "Vi";
                }
                else if (info.BattSupplier == "TADIRAN")
                {
                    info.PrintedInfo = "T";
                }

                ///
                /// Append Porex flowtube info in case of a Porex flowtube
                ///
                if (info.IsPorexFlowtube) { info.PrintedInfo += "/P"; }

                return info;
            }
			catch (Exception exc)
			{
				log.ErrorFormat("Battery info. for PcbNr={0} wasn't found in MySQL database: {1}",
                                info.PcbNumber, exc.Message);
                return null;
            }
		}


		public override string ToString()
		{
			return string.Format("PcbNr={0}, Battery={1}/{2}/{3} {4}, Time={5}", PcbNumber, BattBatchNr, BattMMYY, BattSupplier, (IsPorexFlowtube ? "porex" : ""), TimeStamp);
		}
	}
}