using System;
using System.Collections.Generic;
using Sarand.Net.Standard.Base.App;
using Sarand.Net.Standard.Base.Core;
using Sarand.Net.Standard.Base.Dbas;
using Sarand.Net.Standard.Base.Interfaces;
using Sarand.Net.Standard.Dbas.Base;
using Sarand.Net.Standard.Dbas.Data;

namespace Sarand.Net.Standard.Dbas.Interfaces
{
	//=======================================================================
	public partial class SaInterfaceMgr_Dbas : SaInterfaceMgr
	{
		//-------------------------------------------------------------------
		// Data members.

		//-------------------------------------------------------------------
		// Static initialisation.
		static SaInterfaceMgr_Dbas ()
		{
		}

		//-------------------------------------------------------------------
		// Construction.
		internal SaInterfaceMgr_Dbas (SaInterfaceConsole_Dbas interfaceConsole) :
			base(interfaceConsole)
		{
			Database = interfaceConsole.Database;
			DbInfo = new DbDataItem.DatabaseInfo(interfaceConsole.Database);

			// Verify Interface table names.
			// NB Some databases omit the 'Sa' prefix.
			if (!Database.TableExists(TableName_Interface) && !Database.TableExists(TableName_InterfaceDataItem) && !Database.TableExists(TableName_InterfaceProcess) && !Database.TableExists(TableName_InterfaceProcessDataItem) && !Database.TableExists(TableName_InterfaceProcessMessage))
			{
				if (Database.TableExists("Interface") && Database.TableExists("InterfaceDataItem") && Database.TableExists("InterfaceProcess") && Database.TableExists("InterfaceProcessDataItem") && Database.TableExists("InterfaceProcessMessage"))
				{
					TableName_Interface = "Interface";
					TableName_InterfaceProcess = "InterfaceProcess";
					TableName_InterfaceProcessMessage = "InterfaceProcessMessage";
					TableName_InterfaceDataItem = "InterfaceDataItem";
					TableName_InterfaceProcessDataItem = "InterfaceProcessDataItem";
					SaLogger.Info(GetType().Name+".CTR Switching to Interface table names without 'Sa' prefix");
				}
			}
		}

		//-------------------------------------------------------------------
		// Properties.
		internal ISacsDatabase Database { get; }
		private DbDataItem.DatabaseInfo DbInfo { get; }
		public String TableName_Interface { get; } = SaInterfaceDbDfn.GetTableName(SaInterfaceDbDfn.TableIdx.SaInterface);
		public String TableName_InterfaceProcess { get; } = SaInterfaceDbDfn.GetTableName(SaInterfaceDbDfn.TableIdx.SaInterfaceProcess);
		public String TableName_InterfaceProcessMessage { get; } = SaInterfaceDbDfn.GetTableName(SaInterfaceDbDfn.TableIdx.SaInterfaceProcessMessage);
		public String TableName_InterfaceDataItem { get; } = SaInterfaceDbDfn.GetTableName(SaInterfaceDbDfn.TableIdx.SaInterfaceDataItem);
		public String TableName_InterfaceProcessDataItem { get; } = SaInterfaceDbDfn.GetTableName(SaInterfaceDbDfn.TableIdx.SaInterfaceProcessDataItem);
		public override bool DatabaseIsValid { get { return (Database != null && Database.GetTableNames().Contains(TableName_Interface) && Database.GetTableNames().Contains(TableName_InterfaceProcess)); } }
		public override bool CanUpdateDatabase { get { return DatabaseIsValid; } }

		//-------------------------------------------------------------------
		// Utilities.
		public override bool ColumnExists (SaInterfaceDbDfn.ColumnIdx columnIdx)
		{
			SaInterfaceDbDfn.TableIdx tableIdx = SaInterfaceDbDfn.GetTableForColumn(columnIdx);
			String tableName = SaInterfaceDbDfn.GetTableName(tableIdx, false);
			switch (tableIdx)
			{
				// Ensure correct table name used - with/without 'Sa' prefix.
				case SaInterfaceDbDfn.TableIdx.SaInterface: tableName = TableName_Interface; break;
				case SaInterfaceDbDfn.TableIdx.SaInterfaceProcess: tableName = TableName_InterfaceProcess; break;
				case SaInterfaceDbDfn.TableIdx.SaInterfaceProcessMessage: tableName = TableName_InterfaceProcessMessage; break;
				case SaInterfaceDbDfn.TableIdx.SaInterfaceDataItem: tableName = TableName_InterfaceDataItem; break;
				case SaInterfaceDbDfn.TableIdx.SaInterfaceProcessDataItem: tableName = TableName_InterfaceProcessDataItem; break;
			}
			String columnName = SaInterfaceDbDfn.GetColumnName(columnIdx, false);
			return Database.ColumnExists(tableName, columnName);
		}

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