// Copyright (c) 1998-2009 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:

//

// MSVC++ up to 5.0 has problems with expanding inline functions

// This disables the mad warnings for the whole project

#if defined(NDEBUG) && defined(__VC32__) && _MSC_VER<=1100

#pragma warning(disable : 4710)			// function not expanded. MSVC 5.0 is stupid

#endif

#include <d32dbms.h>

#include <s32file.h>

#include <e32test.h>

#include <e32math.h>

#include <hal.h>

static RTest TheTest(_L("t_dbcomp"));

static RFs   TheFs;

//T_BENCH.DB file is created by T_BENCH test and is used by the current test (T_COMP).

//T_COMP test will delete T_BENCH.DB at the end as it is no more needed.

//If you want to rerun T_COMP test again, you have to ensure that T_BENCH.DB file exists -

//run T_BENCH test again.

TFileName TheBenchDbFileName;

TFileName TheCompressedFileName;

TFileName TheDecompressedFileName;

RDbNamedDatabase TheCompDb;

RDbNamedDatabase TheCopyDb;

RDbTable 		 TheTable1, TheTable2;

///////////////////////////////////////////////////////////////////////////////////////

static void CloseAll()

	{

	TheTable2.Close();

	TheTable1.Close();

	TheCopyDb.Close();

	TheCompDb.Close();

	}

///////////////////////////////////////////////////////////////////////////////////////

//Delete "aFullName" file.

static void DeleteFile(const TDesC& aFullName)

	{

	RFs fsSession;

	TInt err = fsSession.Connect();

	if(err == KErrNone)

		{

		TEntry entry;

		if(fsSession.Entry(aFullName, entry) == KErrNone)

			{

			err = fsSession.SetAtt(aFullName, 0, KEntryAttReadOnly);

			if(err != KErrNone) 

				{

				TheTest.Printf(_L("Error %d changing \"%S\" file attributes.\n"), err, &aFullName);

				}

			err = fsSession.Delete(aFullName);

			if(err != KErrNone) 

				{

				TheTest.Printf(_L("Error %d deleting \"%S\" file.\n"), err, &aFullName);

				}

			}

		fsSession.Close();

		}

	else

		{

		TheTest.Printf(_L("Error %d connecting file session. File: %S.\n"), err, &aFullName);

		}

	}

///////////////////////////////////////////////////////////////////////////////////////

static void DestroyTestEnv()

	{

	CloseAll();

	DeleteFile(TheDecompressedFileName);

	DeleteFile(TheCompressedFileName);

	DeleteFile(TheBenchDbFileName);

	TheFs.Close();

	}

///////////////////////////////////////////////////////////////////////////////////////

//Tests macros and functions.

//If (!aValue) then the test will be panicked, the test data files will be deleted.

static void Check(TInt aValue, TInt aLine)

	{

	if(!aValue)

		{

		DestroyTestEnv();

		TheTest(EFalse, aLine);

		}

	}

//If (aValue != aExpected) then the test will be panicked, the test data files will be deleted.

static void Check(TInt aValue, TInt aExpected, TInt aLine)

	{

	if(aValue != aExpected)

		{

		TheTest.Printf(_L("*** Expected error: %d, got: %d\r\n"), aExpected, aValue);

		DestroyTestEnv();

		TheTest(EFalse, aLine);

		}

	}

//Use these to test conditions.

#define TEST(arg) ::Check((arg), __LINE__)

#define TEST2(aValue, aExpected) ::Check(aValue, aExpected, __LINE__)

//////////////////////////////////////////////////////

static TInt TheCounterFreq = -10000000;

const TInt KMicroSecIn1Sec = 1000000;

TUint32 CalcTickDiff(TUint32 aStartTicks, TUint32 aEndTicks)

	{

	TInt64 diffTicks = (TInt64)aEndTicks - (TInt64)aStartTicks;

	if(diffTicks < 0)

		{

		diffTicks = KMaxTUint32 + diffTicks + 1;

		}

	return (TUint32)diffTicks;

	}

//Prints aFastCount parameter (converted to us)

void PrintFcDiffAsUs(const TDesC& aFormatStr, TUint32 aFastCount)

	{

	if(TheCounterFreq <= 0)

		{

		TEST2(HAL::Get(HAL::EFastCounterFrequency, TheCounterFreq), KErrNone);

		TheTest.Printf(_L("Counter frequency=%d Hz\r\n"), TheCounterFreq);

		}

	double v = ((double)aFastCount * KMicroSecIn1Sec) / (double)TheCounterFreq;

	TInt v2 = (TInt)v;

	TheTest.Printf(aFormatStr, v2);

	}

///////////////////////////////////////////////////////////////////////////////////////

//

// Prepare the test directory.

//

void CreateTestEnv()

    {

	TInt err = TheFs.Connect();

	TheTest(err == KErrNone);

	err = TheFs.MkDirAll(TheBenchDbFileName);

	TEST(err == KErrNone || err == KErrAlreadyExists);

	TUint dummy;

	err = TheFs.Att(TheBenchDbFileName, dummy);

	if(err != KErrNone)

		{

		TheTest.Printf(_L("*** The %S file does not exist, err=%d. Run \"T_BENCH\" test first!\r\n"), &TheBenchDbFileName, err);

		TEST2(err, KErrNone);

		}

	}

///////////////////////////////////////////////////////////////////////////////////////

//

// Compress the database

//

void CompressL(const TDesC& aSource, const TDesC& aTarget, TBool aCompress)

	{

	CFileMan* man = CFileMan::NewL(TheFs);

	TInt err = man->Copy(aSource, aTarget);

	delete man;

	User::LeaveIfError(err);

	User::LeaveIfError(TheFs.SetAtt(aTarget, 0, KEntryAttReadOnly));

	CFileStore* store = CFileStore::OpenLC(TheFs, aTarget, EFileRead|EFileWrite);

	TUint32 fc = User::FastCounter();

	if(aCompress)

		{

		RDbStoreDatabase::CompressL(*store, store->Root());

		}

	else

		{

		RDbStoreDatabase::DecompressL(*store, store->Root());

		}

	TUint32 time = CalcTickDiff(fc, User::FastCounter());

	PrintFcDiffAsUs(_L(" %d us\r\n"), time);

	store->CompactL();

	store->CommitL();

	CleanupStack::PopAndDestroy(store);

	}

void CheckTableL(RDbDatabase& aDatabase, RDbDatabase& aCopy, const TDesC& aTable)

	{

	TheTest.Printf(_L("Processing table %S\n"), &aTable);

	TInt err = TheTable1.Open(aDatabase, aTable, RDbRowSet::EReadOnly);

	TEST2(err, KErrNone);

	err = TheTable2.Open(aCopy, aTable, RDbRowSet::EReadOnly);

	TEST2(err, KErrNone);

	TInt columns = TheTable1.ColCount();

	while(TheTable1.NextL())

		{

		TheTable1.GetL();

		TEST(TheTable2.NextL());

		TheTable2.GetL();

		for(TInt ii=1;ii<=columns;++ii)

			{

			if(TDbCol::IsLong(TheTable1.ColType(ii)))

				{

				TInt len = TheTable1.ColSize(ii);

				TEST2(len, TheTable2.ColSize(ii));

				RDbColReadStream strm1;

				strm1.OpenLC(TheTable1, ii);

				RDbColReadStream strm2;

				strm2.OpenLC(TheTable2, ii);

				TBuf8<512> buf1;

				TBuf8<512> buf2;

				while(len)

					{

					TInt block = Min(512, len);

					strm1.ReadL(buf1, block);

					strm2.ReadL(buf2, block);

					TEST(buf1 == buf2);

					len -= block;

					}

				CleanupStack::PopAndDestroy(2);

				}

			else

				{

				TEST(TheTable1.ColDes8(ii) == TheTable2.ColDes8(ii));

				}

			}

		}

	TheTable2.Close();

	TheTable1.Close();

	}

void CheckL(const TDesC& aSource, const TDesC& aTarget)

	{

	TInt err = TheCompDb.Open(TheFs, aSource, KNullDesC, RDbNamedDatabase::EReadOnly);

	TEST2(err, KErrNone);

	err = TheCopyDb.Open(TheFs, aTarget, KNullDesC, RDbNamedDatabase::EReadOnly);

	TEST2(err, KErrNone);

	CDbTableNames* tables = TheCompDb.TableNamesL();

	for(TInt ii=0;ii<tables->Count();++ii)

		{

		CheckTableL(TheCompDb, TheCopyDb, (*tables)[ii]);

		}

	delete tables;

	TheCopyDb.Close();

	TheCompDb.Close();

	}

/**

@SYMTestCaseID          SYSLIB-DBMS-CT-0593

@SYMTestCaseDesc        Database compression tests.

@SYMTestPriority        Medium

@SYMTestActions         Tests for RDbStoreDatabase::CompressL(),RDbStoreDatabase::DecompressL() functions

@SYMTestExpectedResults Test must not fail

@SYMREQ                 REQ0000

*/

void Test(const TDesC& aSource, const TDesC& aTarget, TBool aCompress)

	{

	TRAPD(err, CompressL(aSource, aTarget, aCompress));

	TEST2(err, KErrNone);

	TheTest.Printf(_L("Checking database"));

	TRAP(err, CheckL(aSource, aTarget));

	TEST2(err, KErrNone);

	}

void DoTests()

	{

	TheTest.Start(_L(" @SYMTestCaseID:SYSLIB-DBMS-CT-0593 Compressing..."));

	Test(TheBenchDbFileName, TheCompressedFileName, ETrue);

	TheTest.Next(_L("Decompressing..."));

	Test(TheCompressedFileName, TheDecompressedFileName, EFalse);

	}

//Usage: "t_comp [<drive letter>:]]"

TInt E32Main()

    {

	TheTest.Title();

	CTrapCleanup* tc = CTrapCleanup::New();

	TheTest(tc != NULL);

	TBuf<256> cmdline;

	User::CommandLine(cmdline);

	TParse parse;

	_LIT(KBenchDbFile, "C:\\DBMS-TST\\T_BENCH.DB");

	parse.Set(cmdline, &KBenchDbFile, 0);

	TheBenchDbFileName.Copy(parse.FullName());

	_LIT(KCompressedFile, "C:\\DBMS-TST\\T_COMP.DB1");

	parse.Set(cmdline, &KCompressedFile, 0);

	TheCompressedFileName.Copy(parse.FullName());

	_LIT(KDecompressedFile, "C:\\DBMS-TST\\T_COMP.DB2");

	parse.Set(cmdline, &KDecompressedFile, 0);

	TheDecompressedFileName.Copy(parse.FullName());

	__UHEAP_MARK;

	CreateTestEnv();

	DoTests();

	DestroyTestEnv();

	delete tc;

	__UHEAP_MARKEND;

	TheTest.End();

	TheTest.Close();

	return 0;

    }