using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Results.Entities;
using NHibernate;
using log4net;
using Oracle.DataAccess.Client; // ODP.NET Oracle managed provider
using Oracle.DataAccess.Types;
using TBF.BenchControl.DB.SensusOracle;

namespace TBF.Forms
{
	public partial class PreviousResultsDlg : Form
	{
		static readonly ILog log = LogManager.GetLogger(typeof(PreviousResultsDlg));

		ISession session;
		int currentBatchNr;
		IList<Batch> batches;


		public PreviousResultsDlg()
		{
			InitializeComponent();
			currentBatchNr = Program.LocalSettings.BatchNr;

			SendAgainHandler += delegate(object sndr, PreviousResultIdEventArgs args)
			{
				if (InvokeRequired) { Invoke(new EventHandler<PreviousResultIdEventArgs>(DoSendAgain), sndr, args); }
				else DoSendAgain(sndr, args);
			};

		}

		private void PreviousResultsDlg_Load(object sender, EventArgs e)
		{
			Localize();

			session = Results.DB.CreateSession();

			batches = session.QueryOver<Batch>()
				.WhereRestrictionOn(x => x.BatchNr)
				.IsBetween(Math.Max(1, currentBatchNr - 25))
				.And(Math.Max(1, currentBatchNr - 1))
				.OrderBy(x => x.BatchNr).Asc
				.List<Batch>();

			Redraw();
		}

		void Localize()
		{
			Text = "Predošlé výsledky";
			closeButton.Text = TBF.Resources.Strings.CloseBtnText;
		}


		public event EventHandler<PreviousResultIdEventArgs> SendAgainHandler;

		/// <summary>
		/// Called from PreviousResultCtrl when 'Send again' button pressed.
		/// </summary>
		public void OnSendAgain(object sender, PreviousResultIdEventArgs data)
		{
			if (SendAgainHandler == null) return;
			try { SendAgainHandler(sender, data); }
			catch (Exception e) { log.Error("SendAgainHandler(...) failed", e); }
		}

		public void DoSendAgain(object sender, PreviousResultIdEventArgs data)
		{
			foreach (var b in batches)
			{
				if (b.BatchNr == data.BatchNr)
				{
#if IPERLST
					//System.IO.StreamWriter logger;
					//string fname = "C:\\TBF\\Logs\\test.log";
					//try { logger = new System.IO.StreamWriter(System.IO.File.Create(fname)); }
					//catch
					//{
					//    logger = null;
					//    log.ErrorFormat("Was not able to open LU log file {0}", fname);
					//}
					//Database.WriteLogsToDisk(logger, b);

					OracleConnection conn = (Database.DBCfg.DBUsed == DBUsed.Production)
						? new OracleConnection("Data Source=STARA01.WORLD;User Id=deltachef;Password=deltachef;")
						: new OracleConnection("Data Source=STARA_TEST.WORLD;User Id=deltachef;Password=deltachef;");

					if (Database.WriteResultsToDatabase(conn, b, true) == Retv.OK)
					{
						b.RsltsSent = true;							/// Result was successfully sent						
						session.SaveOrUpdate(b);					/// Update MySQL DB
						session.Flush();
						(sender as PreviousResultCtrl).Sent = true;	/// Update UI
						Redraw();
					}
					else
					{
						MessageBox.Show("Nepodarilo sa uložiť, pozrite log-súbor",
										"Chyba",
										MessageBoxButtons.OK,
										MessageBoxIcon.Error);
					}
#endif
				}
			}
		}


		void Redraw()
		{
			SuspendLayout();

			flowLayoutPanel1.FlowDirection = FlowDirection.TopDown;
			flowLayoutPanel1.Controls.Clear();

			if (batches == null || batches.Count == 0) return;

			foreach (var b in batches)
			{
				int passedCount = 0;
				int failedCount = 0;
				foreach (var wm in b.WaterMeters)
				{
					if (wm.Passed) { passedCount++; } else { failedCount++; }
				}

				if (passedCount + failedCount == 0) continue;


				flowLayoutPanel1.Controls.Add(new PreviousResultCtrl( this,
																		b.BatchNr,
																		b.StartTime,
																		b.EndTime,
																		b.ProcedureName,
																		b.WaterMeters[0].PurchaseOrder,
																		passedCount,
																		failedCount,
																		b.RsltsSent));
			}

			ResumeLayout();
		}

		private void closeButton_Click(object sender, EventArgs e)
		{
			DialogResult = DialogResult.Cancel;
			Close();
		}
	}
}