///
/// Copyright (c) 2017-2020 Sensus Slovensko a.s.
///
using System;
using System.Collections.Generic;
using System.Drawing.Printing;
using System.Globalization;
using System.Threading;
using Results.Output.Printers.Enhanced;
using log4net;

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

		readonly PrinterCfg printerCfg;

		public bool SupressPrinting { get { return printerCfg.SupressPrinting; } }

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

		///
		/// Items to print
		///
		string header;
		IList<Results.WMeterRsltItemSpec> commonItems;
		IList<Results.WMeterRsltItemSpec> testItems;
		string footer;


		public Printer() { }

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


		void ApplyConfig()
		{
			header = string.IsNullOrEmpty(printerCfg.Header) ? string.Empty : printerCfg.Header.Replace("~", Environment.NewLine);
			commonItems = Results.WMeterRsltItemSpec.FromStrArray(printerCfg.CommonItems);
			testItems = Results.WMeterRsltItemSpec.FromStrArray(printerCfg.SelectedItems);	/// TestID info will be overwritten later on
			footer = string.IsNullOrEmpty(printerCfg.Footer) ? string.Empty : printerCfg.Footer.Replace("~", Environment.NewLine);
		}


		#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.PageOrientation = newCfg.PageOrientation;
                        printerCfg.Template = newCfg.Template;
                        printerCfg.TopMargin = newCfg.TopMargin;
						printerCfg.BottomMargin = newCfg.BottomMargin;
						printerCfg.LeftMargin = newCfg.LeftMargin;

						printerCfg.TitFntFml = newCfg.TitFntFml;
						printerCfg.TitFntSz  = newCfg.TitFntSz;
						printerCfg.TitFntSty = newCfg.TitFntSty;
						printerCfg.HdrFntFml = newCfg.HdrFntFml;
						printerCfg.HdrFntSz  = newCfg.HdrFntSz;
						printerCfg.HdrFntSty = newCfg.HdrFntSty;
						printerCfg.BodyFntFml = newCfg.BodyFntFml;
						printerCfg.BodyFntSz  = newCfg.BodyFntSz;
						printerCfg.BodyFntSty = newCfg.BodyFntSty;
                        printerCfg.FooterFntFml = newCfg.FooterFntFml;
                        printerCfg.FooterFntSz = newCfg.FooterFntSz;
                        printerCfg.FooterFntSty = newCfg.FooterFntSty;

                        printerCfg.GoodOnly = newCfg.GoodOnly;
                        printerCfg.SupressPrinting = newCfg.SupressPrinting;
						printerCfg.Culture = newCfg.Culture;
						printerCfg.CommonItems = newCfg.CommonItems;
						printerCfg.SelectedItems = newCfg.SelectedItems;
						printerCfg.Header = newCfg.Header;
						printerCfg.Footer = newCfg.Footer;

                        printerCfg.DocName = newCfg.DocName;
                        printerCfg.NrOfCopies = newCfg.NrOfCopies;

                        printerCfg.BarcodeType = newCfg.BarcodeType;
                        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());
            }

            string documentName;
            try
            {
                if (string.IsNullOrEmpty(printerCfg.DocName)) throw (new Exception());
                documentName = string.Format(printerCfg.DocName, batch.StartTime, batch.EndTime, batch.BatchNr);
            }
            catch
            {
                documentName = string.Format("{0:yyyyMMdd-HHmm}", batch.EndTime);
            }

            PrintResults(batch, documentName);

            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, string documentName)
        {
            if (batch.WaterMeters.Count > 0)
            {
                EnhancedPrinterCfg cfg = new EnhancedPrinterCfg
                    {
                        PageOrientation = printerCfg.PageOrientation,
                        Template = printerCfg.Template,
                        TopMargin = printerCfg.TopMargin,
                        BottomMargin = printerCfg.BottomMargin,
                        LeftMargin = printerCfg.LeftMargin,
                        TitFntFml = printerCfg.TitFntFml,
                        TitFntSz = printerCfg.TitFntSz,
                        TitFntSty = printerCfg.TitFntSty,
                        HdrFntFml = printerCfg.HdrFntFml,
                        HdrFntSz = printerCfg.HdrFntSz,
                        HdrFntSty = printerCfg.HdrFntSty,
                        BodyFntFml = printerCfg.BodyFntFml,
                        BodyFntSz = printerCfg.BodyFntSz,
                        BodyFntSty = printerCfg.BodyFntSty,
                        FooterFntFml = printerCfg.FooterFntFml,
                        FooterFntSz = printerCfg.FooterFntSz,
                        FooterFntSty = printerCfg.FooterFntSty,
                        GoodOnly = printerCfg.GoodOnly,
                        SupressPrinting = printerCfg.SupressPrinting,
                        CultureInfo = (printerCfg.Culture == Culture.system) ? Thread.CurrentThread.CurrentCulture : new CultureInfo(printerCfg.Culture.ToString()),
                        Header = printerCfg.Header,
                        CommonItems = printerCfg.CommonItems,
                        TestItems = printerCfg.SelectedItems,
                        Footer = printerCfg.Footer,
                        BarcodeType = printerCfg.BarcodeType,
                        BarcodeWidth = printerCfg.BarcodeWidth,
                        BarcodeHeight = printerCfg.BarcodeHeight,
                    };

                for (int i = 1; i <= printerCfg.NrOfCopies; i++)
                {
                    string docName = string.Format(((printerCfg.NrOfCopies == 1) ? "{0}" : "{0}-{1}"), documentName, i);
                    new Results.Output.Printers.Enhanced.EnhancedPrintDocument(batch, cfg, docName).Print();
                }
            }
        }
    }
}