using Sarand.PatientMgr.Core.App;
using Sarand.Core.Base;
using Sarand.Core.IO;
using Sarand.PatientMgr.Win.Dbas.App;
using Sarand.PatientMgr.Win.Forms.App;
using Sarand.Win.Dbas.Base;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Sarand.PatientMgr.App
{
	//=======================================================================
	class SaPatientMgrApp : SacsStateItem, IDisposable
	{
		//-------------------------------------------------------------------
		// Data members.
		private static SaPatientMgrApp app = null;
		private readonly PropertySet properties;
		private SpmSessionProfile_Desktop sessionProfile;

		//-------------------------------------------------------------------
		// Construction.
		public SaPatientMgrApp (String initialLogMessage)
		{
			app = this;
			SpmSystem_WinDbas.InitStatics();

			// Locate properties file:
			String propertiesFilePath = FileUtil.LocateFileRelative("SaPatientMgr.cfg", new List<String> { "Bin" });
			properties = PropertySet.GetPropertiesFromFile(propertiesFilePath);
			if (properties != null)
			{
				//properties.Dump();

				Spm.Site Site = EnumUtil.ParseEnum(properties.GetPropertyValue("Config", "Site"), Spm.Site.Unknown);

				// Default logger properties.
				Logger.LogFilenamePrefix = "SPM-DSK";
				Logger.LogFolder = properties.GetPropertyValue("Logging", "Folder");
#if DEBUG
				Logger.ConsoleLevel = SaMessageLevel.Trace;
#endif
				Logger.LogFileLevel = EnumUtil.StartsWith(properties.GetPropertyValue("Logging", "Level"), SaMessageLevel.Info);
				Logger.Info(initialLogMessage, true);
				Logger.Info("Logging level: " + Logger.LogFileLevel);

				// Configure extended logging.
				List<String> extendedLoggingOptions = StringList.Split(properties.GetPropertyValue("Logging", "ExtendedLogging"));
				if (!extendedLoggingOptions.IsEmpty())
					Logger.Info("Extended logging: " + extendedLoggingOptions.Concat(","));
			}
			else SetErrorState("Properties file not found");

			SessionContext = new SpmSessionContext_Desktop(0, Site);
			InitGlobals();
			//SpmGlobals.DbConsole.VerifyDatabaseSchema();

			// Login the current windows user.
			SpmGlobals.Application.GetSecurityConsole(SessionContext).LoginAuthenticatedUser();
		}
		public void Dispose ()
		{
			app = null;
			DeinitGlobals();
		}

		//-------------------------------------------------------------------
		// Properties.
		public Spm.Site Site { get; } = Spm.Site.Unknown;
		public SpmSessionContext SessionContext { get; }

		//-------------------------------------------------------------------
		//                          I n s t a n c e
		//-------------------------------------------------------------------
		public static SaPatientMgrApp getInstance ()
		{
			return app;
		}

		//-------------------------------------------------------------------
		//                           G l o b a l s
		//-------------------------------------------------------------------
		private void InitGlobals ()
		{
			// System.
			SpmGlobals.System = new SpmSystem_WinDbas(properties);

			// Database.
			SacsDatabase database = OpenDatabase();
			//SpmGlobals.DbConsole = new LogisticsMgrDbConsoleDbas();

			// Global application.
			SpmGlobals.Application = new SpmApplication_Desktop(properties, SessionContext, database);

			// Session profile.
			sessionProfile = new SpmSessionProfile_Desktop(SessionContext);
			SpmGlobals_Win.SessionProfile = sessionProfile;
		}
		private SacsDatabase OpenDatabase ()
		{
			SacsDatabaseConsole.OdbcConfig config = new SacsDatabaseConsole.OdbcConfig();
			config.location = properties.GetPropertyValue("Scheduling", "DataSource");
			config.user = properties.GetPropertyValue("Scheduling", "DataUser");
			config.pword = properties.GetPropertyValue("Scheduling", "DataPword");
			Logger.Trace("PatientMgrApp OpenDatabase Location=" + config.location);

			SacsDatabase database = SacsDatabaseConsole.OpenOdbcDatabase(config);

			bool catalogDatabase = true;
			if (catalogDatabase)
			{
				foreach (String tableName in database.GetTableNames())
				{
					database.GetTableDfn(tableName);
				}
			}
			return database;
		}

		//-------------------------------------------------------------------
		private void DeinitGlobals ()
		{
			if (SpmGlobals_Win.SessionProfile != null)
				SpmGlobals_Win.SessionProfile.StoreProperties();
			SpmGlobals.clear();
		}

		//-------------------------------------------------------------------
	}
	//=======================================================================
}