///
/// Copyright (c) 2015-2020 Sensus Slovensko a.s.
///
using System;
using System.Collections.Generic;
using log4net;
using System.Globalization;
using System.Threading;
using Results.Output.Printers.Label;

namespace TBF.BenchControl.Output.Printers.Label
{
	public class Printer : ComponentBase, IOperation, GenericDevices.IResultsPrinter
	{
		private static readonly ILog log = LogManager.GetLogger(typeof(Printer));
		public override string ToString() { return string.Format("LabelPrinter({0})", Cfg.ToString(1)); }

		readonly PrinterCfg printerCfg;

		public bool SupressPrinting { get { return (printerCfg.NrOfCopies == 0); } }

		/// <summary> Data to print </summary>
		Results.Entities.Batch batch;

		///
		/// Items to print
		///
		IList<Results.WMeterRsltItemSpec> commonItems;


		public Printer() { }

		public Printer(Generic.IComponentCfg cfg)
			: base(cfg)
		{
			printerCfg = cfg as PrinterCfg;
			ApplyConfig();
			log.Warn(this.ToString());
		}

		void ApplyConfig()
		{
			commonItems = Results.WMeterRsltItemSpec.FromStrArray(printerCfg.ItemsToPrint);
		}


		#region Configuration Change Handling

		public static void OnCfgChange(object sender, CfgChangeArgs args)
		{
			if (CfgChangeHandler == null) return;
			try { CfgChangeHandler(sender, args); }
			catch (Exception e) { log.Error("CfgChangeHandler(...) failed", e); }
		}

		public static event EventHandler<CfgChangeArgs> CfgChangeHandler;

		public override void StartChangeHandler()
		{
			CfgChangeHandler += delegate(object sender, CfgChangeArgs args)
			{
				PrinterCfg newCfg = args.Cfg as PrinterCfg;
				if (newCfg != null && newCfg.Name.Equals(Name))
				{
					if (args.Command == CfgChangeCmd.CfgChange)
					{
						printerCfg.Template = newCfg.Template;
						printerCfg.PageOrientation = newCfg.PageOrientation;
						printerCfg.PaperWidth = newCfg.PaperWidth;
						printerCfg.PaperHeight = newCfg.PaperHeight;
						printerCfg.ItemsToPrint = newCfg.ItemsToPrint;
						printerCfg.FontFamily = newCfg.FontFamily;
						printerCfg.FontSize = newCfg.FontSize;
						printerCfg.FontStyle = newCfg.FontStyle;
						printerCfg.Culture = newCfg.Culture;
						printerCfg.NrOfCopies = newCfg.NrOfCopies;
						printerCfg.GoodOnly = newCfg.GoodOnly;
                        printerCfg.BarcodeType = newCfg.BarcodeType;
                        printerCfg.BarcodeLeft = newCfg.BarcodeLeft;
                        printerCfg.BarcodeTop = newCfg.BarcodeTop;
                        printerCfg.BarcodeWidth = newCfg.BarcodeWidth;
                        printerCfg.BarcodeHeight = newCfg.BarcodeHeight;

						ApplyConfig();
					}
				}
			};
		}

		#endregion Configuration Change Handling


		/// <summary>
		/// Prints the test cycle results, Events:  Event.ResultsPrinted
		/// </summary>
		/// <param name="batch">Batch results to print</param>
		/// <returns>Reference to the operation</returns>
        public IOperation ProcessResultsOp(Results.Entities.Batch batch)
		{
			this.batch = batch;
			return this;
		}

		/// <summary>Start this operation</summary>
		public void Start()
		{
            CultureInfo oriCulture = Thread.CurrentThread.CurrentCulture;

            if (printerCfg.Culture != Culture.system)
            {
                Thread.CurrentThread.CurrentCulture = new CultureInfo(printerCfg.Culture.ToString());
            }

            foreach (var wm in batch.WaterMeters)
            {
                if (wm != null && (!printerCfg.GoodOnly || wm.Passed))
                {
                    PrintResults(batch, wm, string.Format("{0}-{1}", batch.BatchNr, wm.WMPosition));
                }
            }

            Thread.CurrentThread.CurrentCulture = oriCulture;
		}

		/// <summary>Run this operation</summary>
		/// <returns>Event.ResultsPrinted</returns>
		public Event Run()
		{
			return Event.ResultsPrinted;
		}

		/// <summary>Stop this operation</summary>
		public void Stop()
		{
		}


		void PrintResults(Results.Entities.Batch batch, Results.Entities.WaterMeter wm, string documentName)
		{
			LabelPrinterCfg cfg = new LabelPrinterCfg
			{
				Template = printerCfg.Template,
				PageOrientation = printerCfg.PageOrientation,
				PaperWidth = printerCfg.PaperWidth,
				PaperHeight = printerCfg.PaperHeight,
				ItemsToPrint = printerCfg.ItemsToPrint,
				FontFamily = printerCfg.FontFamily,
				FontSize = printerCfg.FontSize,
				FontStyle = printerCfg.FontStyle,
                CultureInfo = (printerCfg.Culture == Culture.system) ? Thread.CurrentThread.CurrentCulture : new CultureInfo(printerCfg.Culture.ToString()),
				GoodOnly = printerCfg.GoodOnly,
                BarcodeType = printerCfg.BarcodeType,
                BarcodeLeft = printerCfg.BarcodeLeft,
                BarcodeTop = printerCfg.BarcodeTop,
                BarcodeWidth = printerCfg.BarcodeWidth,
                BarcodeHeight = printerCfg.BarcodeHeight,
            };

			for (int i = 1; i <= printerCfg.NrOfCopies; i++)
			{
				string docNameEx = string.Format(((printerCfg.NrOfCopies == 1) ? "{0}" : "{0}_{1}"), documentName, i);
				new Results.Output.Printers.Label.LabelPrintDocument(batch, cfg, wm, docNameEx).Print();
			}
		}
	}
}