/*

* Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

/**

 @file

 @internalComponent

 @released

*/

#include "dbsqldumper.h"

#include "dbhtmltags.h"

#include "dbsqlconstants.h"

#include <e32test.h>

#include <s32mem.h>

_LIT(KErrorMessage, "DBSqlDumper Failed");	

const TInt KMaxPathLength = 100;

const TInt KBufferLength = 80;

/**

Class constructor

*/

CDbStructure::CDbStructure()

	{

	Init();	

	}

/**

Class destructor

*/

CDbStructure::~CDbStructure()	

	{

	iColumnsIndex.Reset();

	iNumColumns.Reset();	

	}

/**

Initialize table structure (number of tables, number of column in each table)

*/

void CDbStructure::Init()

	{	

	iTablesIndex = KInitialValue;

	iNumTables = KNumOfTables;

	iColumnsIndex.Reset();

	iNumColumns.Reset();

	//columns in pref table

	iColumnsIndex.Append(KInitialValue);

	iNumColumns.Append(KNumColInPrefTable);

	//columns in contact table

	iColumnsIndex.Append(KInitialValue);

	iNumColumns.Append(KNumColInContactTable);

	//columns in group table

	iColumnsIndex.Append(KInitialValue);

	iNumColumns.Append(KNumColInGroupTable);

	//columns in comm-address table

	iColumnsIndex.Append(KInitialValue);

	iNumColumns.Append(KNumColInCommTable);

	//columns in predictive search tables

	const TInt KAmountOfPredictiveSearchTables = 10;

	for (TInt i = 0; i < KAmountOfPredictiveSearchTables; ++i)

		{

		iColumnsIndex.Append(KInitialValue);

		iNumColumns.Append(KNumColInPredSearchTable);

		}

	}

/**

Moves the cursor forward to the next table

@return ETrue if the cursor can be moved to the next index or EFalse if the cursor

		is already at the end

*/		

TBool CDbStructure::NextTable()

	{

	++iTablesIndex;

	return iTablesIndex < iNumTables;

	}

/**

Return current table name in the cursor

*/	

const TDesC& CDbStructure::TableName()

	{

	return TableName(iTablesIndex);

	}

/**

Returns name of the table located at specified position in the table array

*/

const TDesC& CDbStructure::TableName(TInt aTableIndex)

	{

	switch(aTableIndex)

		{

		case EContactPrefTableName:

			{

			return KSqlContactPrefTableName;	

			}

		case EContactTableName:

			{

			return KSqlContactTableName;

			}

		case EContactGroupTableName:

			{

			return KSqlContactGroupTableName;	

			}

		case EContactCommAddressTableName:

			{

			return KSqlContactCommAddrTableName;		

			}

		case KContactPredSearchTable0Name:

			return KSqlContactPredSearchTable0;

		case KContactPredSearchTable1Name:

			return KSqlContactPredSearchTable1;

		case KContactPredSearchTable2Name:

			return KSqlContactPredSearchTable2;

		case KContactPredSearchTable3Name:

			return KSqlContactPredSearchTable3;

		case KContactPredSearchTable4Name:

			return KSqlContactPredSearchTable4;

		case KContactPredSearchTable5Name:

			return KSqlContactPredSearchTable5;

		case KContactPredSearchTable6Name:

			return KSqlContactPredSearchTable6;

		case KContactPredSearchTable7Name:

			return KSqlContactPredSearchTable7;

		case KContactPredSearchTable8Name:

			return KSqlContactPredSearchTable8;

		case KContactPredSearchTable9Name:

			return KSqlContactPredSearchTable9;

		default:

			{

			return KNullText;

			} 

		}

	}

/**

Moves the cursor forward to the next column in the specified table

@return ETrue if the cursor can be moved to the next index or EFalse if the cursor

		is already at the end

*/

TBool CDbStructure::NextColumn(TInt aTableIndex)

	{

	++iColumnsIndex[aTableIndex];

	return iColumnsIndex[aTableIndex] < iNumColumns[aTableIndex];

	}

/**

Return current column name for the specified table

@param	aTableIndex table index for which column name has to be returned

*/	

const TDesC& CDbStructure::Column(TInt aTableIndex)

	{

	return Column(aTableIndex, iColumnsIndex[aTableIndex]);	

	}

/**	

Return name of the column located at specified pozition in the specified table

*/

const TDesC& CDbStructure::Column(TInt aTableIndex, TInt aColumnIndex)

	{

	switch(aTableIndex)

		{

		case EContactPrefTableName: //columns in preference table

			switch(aColumnIndex)

				{

				case 0:

					{

					return KPrefPrefId;	

					}

				case 1:

					{

					return KPrefSchemaVersion;	

					}

				case 2:

					{

					return KPrefDatabaseUid;	

					}

				case 3:

					{

					return KPrefPrefCreationDate;	

					}

				case 4:

					{

					return KPrefMachineId;	

					}

				case 5:

					{

					return KPrefPreferredOrder;	

					}

				case 6:

					{

					return KPrefferredTemplateId;

					}

				}

			break;	

		case EContactTableName: //columns in contact table

			switch(aColumnIndex)

				{

				case 0:

					{

					return KContactId;

					}

				case 1:

					{

					return KContactTemplateId;

					}

				case 2:

					{

					return KContactTypeFlags;

					}

				case 3:

					{

					return KContactAccessCount;

					}

				case 4:

					{

					return KContactLastModified;

					}

				case 5:

					{

					return KContactGuidString;

					}

				case 6:

					{

					return KContactFirstName;

					}

				case 7:

					{

					return KContactLastName;

					}

				case 8:

					{

					return KContactCompanyName;

					}

				case 9:

					{

					return KContactFirstNamePrn;

					}

				case 10:

					{

					return KContactLastNamePrn;

					}

				case 11:

					{

					return KContactCompanyNamePrn;

					}

				case 12:

					{

					return KContactTextFieldHeader;

					}

				case 13:

					{

					return KContactBinaryFieldHeader;

					}

				case 14:

					{

					return KContactTextFields;

					}

				case 15:

					{

					return KContactBinaryFields;

					}

				}

			break;	

		case EContactGroupTableName: //columns in group table

			switch(aColumnIndex)

				{

				case 0:

					{

					return KGroupContactGroupId;

					}

				case 1:

					{

					return KGroupContactGroupId;

					}

				case 2:

					{

					return KGroupContactGroupMemberId;

					}

				}

			break;				

		case EContactCommAddressTableName: //columns in comm-address table

			switch(aColumnIndex)

				{

				case 0: 

					{

					return KCommAddrId;

					}

				case 1:

					{

					return KCommAddrType;

					}

				case 2:

					{

					return KCommAddrValue;

					}

				case 3:

					{

					return KCommAddrExtraValue;

					}

				case 4:

					{

					return KCommAddrContactId;

					}

				}

			break;

		case KContactPredSearchTable0Name: //columns in predictive search tables

		case KContactPredSearchTable1Name:

		case KContactPredSearchTable2Name:

		case KContactPredSearchTable3Name:

		case KContactPredSearchTable4Name:

		case KContactPredSearchTable5Name:

		case KContactPredSearchTable6Name:

		case KContactPredSearchTable7Name:

		case KContactPredSearchTable8Name:

		case KContactPredSearchTable9Name:

			switch(aColumnIndex)

				{

				case 0:

					return KPredSearchContactId;

				case 1:

					return KPredSearchNameAsNumber;

				case 2:

					return KPredSearchNameAsNumber2;

				case 3:

					return KPredSearchNameAsNumber3;

				case 4:

					return KPredSearchNameAsNumber4;

				case 5:

					return KPredSearchFirstName;

				case 6:

					return KPredSearchLastName;

				}

			break;

		}

		return KNullText;

	}

/**

Check if current column is the last column

*/	

TBool CDbStructure::IsLastColumn(TInt aTableIndex)

	{

	return iColumnsIndex[aTableIndex] == (iNumColumns[aTableIndex]-1);

	}

/**

Return number of columns specified table has

*/

TInt CDbStructure::ColumnNo(TInt aTableIndex)

	{

	return 	iNumColumns[aTableIndex];

	}

/**

Class destructor

*/	

CDbSqlDumper::~CDbSqlDumper()

	{

	delete iBuffer;

	iTableNames.Reset();

	iFile.Close();

	iDatabase.Close();

	iFsSession.Close();

	delete iDbStructure;

	}

/**

Second phase constructor for CDbSqlDumper class

@param  aDbName name of the database to be dumped.

@param	aOutputDir directory where html file will be generated		

*/	

void CDbSqlDumper::ConstructL(const TDesC& aDbName, const TDesC& aOutputDir)

	{

	// Output File Name	

	_LIT(KOutputFile,"DbDump.html");

	TBuf<KMaxPathLength> path(aOutputDir);

	path.Append(KOutputFile);

	User::LeaveIfError(iFsSession.Connect() );

	iDatabase.OpenL(aDbName);

	User::LeaveIfError(iFile.Replace(iFsSession, path, EFileWrite) );

	iBuffer = HBufC8::NewL(KBufferLength);

	iDbStructure = new (ELeave) CDbStructure();

	while(iDbStructure->NextTable())

		{

		iTableNames.AppendL(&(iDbStructure->TableName()));		

		}	

	}

/**

Return a concrete CDbSqlDumper object

@param  aDbName name of the database to be dumped.

@param	aOutputDir directory where html file will be generated		

*/	

CDbSqlDumper* CDbSqlDumper::NewLC(const TDesC& aDbName, const TDesC& aOutputDir)

	{

	CDbSqlDumper* self = new (ELeave) CDbSqlDumper();

	CleanupStack::PushL(self);

	self->ConstructL(aDbName, aOutputDir);

	return self;

	}

/**

Utility method used to build sql string. The result sql string will be

used to select from specified table

@param	aTableIndex	table index in the table array

*/	

void CDbSqlDumper::PrepareSQLStatementL(TInt aTableIndex)

	{

	//calculate the space needed to build the saq string

	iDbStructure->Init();

	TInt size = KSQLSelect().Size();

	while(iDbStructure->NextColumn(aTableIndex))

		{

		size += iDbStructure->Column(aTableIndex).Size() + 1;

		}

	size += KFrom().Size() + iDbStructure->TableName(aTableIndex).Size();	

	HBufC* sqlString = HBufC::NewLC( size );

	TPtr buffer = sqlString->Des();

	iDbStructure->Init();

	buffer.Append(KSQLSelect);

	while(iDbStructure->NextColumn(aTableIndex))

		{

		buffer.Append(iDbStructure->Column(aTableIndex));

		if(!iDbStructure->IsLastColumn(aTableIndex))	

			{

			buffer.Append(KComma);	

			}

		else	

			{

			buffer.Append(KSpace);	

			}		

		}

	buffer.Append(KFrom);	

	buffer.Append(iDbStructure->TableName(aTableIndex) );

	User::LeaveIfError(iSqlStatement.Prepare(iDatabase, buffer));

	CleanupStack::PopAndDestroy(sqlString);

	}

/**

Outputs one table values. Fetch all selected rows and output them in the

html file

@param	aTableIndex	table index in the table array

@leave  if there is an error at sql level, it will be forwarded

*/	

void CDbSqlDumper::OutputTableToFileL(TInt aTableIndex) 

	{

	TInt err;

	iFile.Write(KTable);

	OutputTableNameToFile(aTableIndex);

	OutputTableColHeadingsToFile(aTableIndex);

	PrepareSQLStatementL(aTableIndex);

	// output the table's rows

	while ((err =iSqlStatement.Next()) == KSqlAtRow )

		{

		iFile.Write(KRow);

		OutputTableColDataToFileL(aTableIndex);

		iFile.Write(KRowEnd);	

		}

	// check if there were any error

	if(err != KSqlAtEnd) 

		{

		iSqlStatement.Close();

		User::Leave(err);	

		}

	iSqlStatement.Close();

	iFile.Write(KTableEnd);

	}

/**

Outputs the table name in the html file

@param	aTableIndex	table index in the table array