/*

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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 "sisexpression.h"

#include "utility.h"

#include <hal_data.h>

#define LANGUAGE_VARIABLE	L"LANGUAGE"

const SKeyword KVariables [] =

	{

		{L"MANUFACTURER",				HALData::EManufacturer},

		{L"MANUFACTURERHARDWAREREV",	HALData::EManufacturerHardwareRev},

		{L"MANUFACTURERSOFTWAREREV",	HALData::EManufacturerSoftwareRev},

		{L"MANUFACTURERSOFTWAREBUILD",	HALData::EManufacturerSoftwareBuild},

		{L"MODEL",						HALData::EModel},

		{L"MACHINEUID",					HALData::EMachineUid},

		{L"DEVICEFAMILY",				HALData::EDeviceFamily},

		{L"DEVICEFAMILYREV",			HALData::EDeviceFamilyRev},

		{L"CPU",						HALData::ECPU},

		{L"CPUARCH",					HALData::ECPUArch},

		{L"CPUABI",						HALData::ECPUABI},

		{L"CPUSPEED",					HALData::ECPUSpeed},

		//{L"SystemStartupReason",		HALData::ESystemStartupReason},

		//{L"SystemException",			HALData::ESystemException},

		{L"SYSTEMTICKPERIOD",			HALData::ESystemTickPeriod},

		{L"MEMORYRAM",					HALData::EMemoryRAM},

		{L"MEMORYRAMFREE",				HALData::EMemoryRAMFree},

		{L"MEMORYROM",					HALData::EMemoryROM},

		{L"MEMORYPAGESIZE",				HALData::EMemoryPageSize},

		//{L"PowerGood",				HALData::EPowerGood},

		//{L"PowerBatteryGood",			HALData::EPowerBatteryGood},

		{L"POWERBACKUP",				HALData::EPowerBackup},

		//{L"PowerBackupGood",			HALData::EPowerBackupGood},

		//{L"PowerExternal",				HALData::EPowerExternal},

		{L"KEYBOARD",					HALData::EKeyboard},

		{L"KEYBOARDDEVICEKEYS",			HALData::EKeyboardDeviceKeys},

		{L"KEYBOARDAPPKEYS",			HALData::EKeyboardAppKeys},

		{L"KEYBOARDCLICK",				HALData::EKeyboardClick},

		//{L"KeyboardClickState",		HALData::EKeyboardClickState},

		//{L"KeyboardClickVolume",		HALData::EKeyboardClickVolume},

		{L"KEYBOARDCLICKVOLUMEMAX",		HALData::EKeyboardClickVolumeMax},

		{L"DISPLAYXPIXELS",				HALData::EDisplayXPixels},

		{L"DISPLAYYPIXELS",				HALData::EDisplayYPixels},

		{L"DISPLAYXTWIPS",				HALData::EDisplayXTwips},

		{L"DISPLAYYTWIPS",				HALData::EDisplayYTwips},

		{L"DISPLAYCOLORS",				HALData::EDisplayColors},

		//{L"DisplayState",				HALData::EDisplayState},

		//{L"DisplayContrast",			HALData::EDisplayContrast},

		{L"DISPLAYCONTRASTMAX",			HALData::EDisplayContrastMax},

		{L"BACKLIGHT",					HALData::EBacklight},

		//{L"BacklightState",			HALData::EBacklightState},

		{L"PEN",						HALData::EPen},

		{L"PENX",						HALData::EPenX},

		{L"PENY",						HALData::EPenY},

		{L"PENDISPLAYON",				HALData::EPenDisplayOn},

		{L"PENCLICK",					HALData::EPenClick},

		//{L"PenClickState",			HALData::EPenClickState},

		//{L"PenClickVolume",			HALData::EPenClickVolume},

		{L"PENCLICKVOLUMEMAX",			HALData::EPenClickVolumeMax},

		{L"MOUSE",						HALData::EMouse},

		{L"MOUSEX",						HALData::EMouseX},

		{L"MOUSEY",						HALData::EMouseY},

		//{L"MouseState",				HALData::EMouseState},

		//{L"MouseSpeed",				HALData::EMouseSpeed},

		//{L"MouseAcceleration",		HALData::EMouseAcceleration},

		{L"MOUSEBUTTONS",				HALData::EMouseButtons},

		//{L"MouseButtonState",			HALData::EMouseButtonState},

		//{L"CaseState",					HALData::ECaseState},

		{L"CASESWITCH",					HALData::ECaseSwitch},

		//{L"CaseSwitchDisplayOn",		HALData::ECaseSwitchDisplayOn},

		//{L"CaseSwitchDisplayOff",		HALData::ECaseSwitchDisplayOff},

		{L"LEDS",						HALData::ELEDs},

		//{L"LEDmask",					HALData::ELEDmask},

		{L"INTEGRATEDPHONE",			HALData::EIntegratedPhone},

		{L"DISPLAYBRIGHTNESS",			HALData::EDisplayBrightness},

		{L"DISPLAYBRIGHTNESSMAX",		HALData::EDisplayBrightnessMax},

		{L"KEYBOARDBACKLIGHTSTATE",		HALData::EKeyboardBacklightState},

		{L"ACCESSORYPOWER",				HALData::EAccessoryPower},

		{L"SYSTEMDRIVE",				HALData::ESystemDrive},

		{L"FPHARDWARE",					HALData::EHardwareFloatingPoint},		

		{L"NUMHALATTRIBUTES",			HALData::ENumHalAttributes},

		{LANGUAGE_VARIABLE,				EVarLanguage},

		{L"REMOTEINSTALL",				EVarRemoteInstall},

		{NULL,							0}

	};

struct TExpressionFeatures

	{

	bool			iLeftNeeded;

	bool			iRightNeeded;

	bool			iStringNeeded;

	bool			iNumberNeeded;

	const wchar_t*	iName;

	};

static TExpressionFeatures expressionFeatures[] =

	{

		// Left	Right	String	Number	Name

		{true,	true,	false,	false,	L"="		},	 //EBinOpEqual

		{true,	true,	false,	false,	L"<>"		},	//EBinOpNotEqual

		{true,	true,	false,	false,	L">"		},	//EBinOpGreaterThan

		{true,	true,	false,	false,	L"<"		},	//EBinOpLessThan

		{true,	true,	false,	false,	L">="		},	//EBinOpGreaterThanOrEqual

		{true,	true,	false,	false,	L"<="		},	//EBinOpLessThanOrEqual

		{true,	true,	false,	false,	L"AND"		},	//ELogOpAnd

		{true,	true,	false,	false,	L"OR"		},	//ELogOpOr

		{false,	true,	false,	false,	L"NOT"		},	//EUnaryOpNot

		{false,	false,	true,	false,	L"exists"	},	//EFuncExists

		{true,	true,	false,	false,	L"appprop"	},	//EFuncAppProperties

		{false,	true,	false,	false,	L"package"	},	//EFuncDevProperties

		{false,	false,	true,	false,	L""			},	//EPrimTypeString

		{false,	false,	false,	true,	L"option"	},	//EPrimTypeOption

		{false,	false,	false,	true,	L""			},	//EPrimTypeVariable

		{false,	false,	false,	true,	L""			}	//EPrimTypeNumber

	};

TExpressionFeatures* findExpressionFeature (TUint32 aOperator)

	{

	if(aOperator <= CSISExpression::EOpNone ||aOperator >= CSISExpression::EOpUnknown)

		{

		return NULL;

		}

	return &expressionFeatures[aOperator-1];

	}

void CSISExpression::InsertMembers ()

	{

	InsertMember (iOperator);

	InsertMember (iInteger);

	InsertMember (iString);

	InsertMember (iLeaf);

	}

CSISExpression::CSISExpression (const CSISExpression& aExpression) :

		CStructure <CSISFieldRoot::ESISExpression> (aExpression),

		iOperator (aExpression.iOperator),

		iInteger (aExpression.iInteger),

		iString (aExpression.iString),

		iLeaf (aExpression.iLeaf)					

	{ 

	InsertMembers (); 

	}

void CSISExpression::Verify (const TUint32 aLanguages) const

	{

	CStructure <CSISFieldRoot::ESISExpression>::Verify (aLanguages);

	assert (iLeaf.size () < 3);

	CSISException::ThrowIf (	static_cast <TOperator> (iOperator.Value ()) > EOpUnknown,

								CSISException::EVerification,

								"illegal or unknown operator");

	}

CSISExpression& CSISExpression::operator = (const CSISExpression& aExpression)

	{

	iOperator = aExpression.iOperator;

	iInteger = aExpression.iInteger;

	iString = aExpression.iString;

	iLeaf.clear ();

	iLeaf.assign (aExpression.iLeaf.begin (), aExpression.iLeaf.end ());

	return *this;

	}

void CSISExpression::SetOperator (const TOperator aOperator, const CSISExpression& aLHS)	

	{

	switch (aOperator)

		{

	case EBinOpEqual :

	case EBinOpNotEqual :

	case EBinOpGreaterThan :

	case EBinOpLessThan :

	case EBinOpGreaterThanOrEqual :

	case EBinOpLessThanOrEqual :

	case ELogOpAnd :

	case ELogOpOr :

	case EFuncAppProperties :

		{

		AddLeaf (aLHS);

		AddLeaf ();

		break;

		}

	case EUnaryOpNot :

	case EFuncDevProperties :

		{

		AddLeaf (aLHS);

		break;

		}

	case EPrimTypeString :

	case EFuncExists :

		{

		iString.SetRequired(true);

		break;

		}

	case EPrimTypeVariable :

	case EPrimTypeOption :

	case EPrimTypeNumber :

		{

		break;

		}

	default :

		{

		assert (false);	

		}

		}

	iOperator = aOperator; 

	assert (iLeaf.size () < 3);

	}

void CSISExpression::SetLanguageComparision (const TInt32 aValue)

	{

	AddLeaf ();

	AddLeaf ();

	LHS ().SetOperator (EPrimTypeVariable);

	LHS ().SetLanguage ();

	RHS ().SetOperator (EPrimTypeNumber);

	RHS ().SetNumeric (aValue);

	iOperator =	EBinOpEqual;

	}

void CSISExpression::SetLanguage ()

	{

	iOperator =	EPrimTypeVariable;

	iInteger = EVarLanguage;

	}

void CSISExpression::SetVariable (const std::wstring& aIdentifier)

	{

	SetOperator (CSISExpression::EPrimTypeVariable);

	SetValue (static_cast <TUint32> (IdentifyUCKeyword (KVariables, aIdentifier, L"unknown variable")));

	}

void CSISExpression::AddPackageEntry(std::wostream& aStream, bool aVerbose) const

	{

	TExpressionFeatures* features = findExpressionFeature (iOperator);

	if(NULL == features)

		{

		aStream << L"UNKNOWN";

		return;

		}

	if (features->iLeftNeeded)

		{

		aStream << L"(";

		if(iOperator.Value() == EFuncExists)

			{

			aStream << L"\"";

			}

		LHS().AddPackageEntry(aStream, aVerbose);

		if(iOperator.Value() == EFuncExists)

			{

			aStream << L"\"";

			}

		aStream << L")";

		}

	std::wstring versionStr = iString.GetString().substr(0,KFuncVersionPrefix.length());

	std::wstring supportedLanguageStr = iString.GetString().substr(0,KFuncSupportedLanguagePrefix.length());

	if((iOperator.Value() == EFuncExists) && (versionStr == KFuncVersionPrefix))

		{

		WriteVersionCondition (aStream, aVerbose);

		}

	else if ((iOperator.Value() == EFuncExists) && (supportedLanguageStr == KFuncSupportedLanguagePrefix))

		{

		WriteSupportedLanguageCondition (aStream, aVerbose);

		}

	else

		{	

		aStream << features->iName;

		}

	if (features->iRightNeeded)

		{

		aStream << L"(";

		if(iOperator.Value() == EFuncExists)

			{

			aStream << L"\"";

			}

		RHS().AddPackageEntry(aStream, aVerbose);

		if(iOperator.Value() == EFuncExists)

			{

			aStream << L"\"";

			}

		aStream << L")";

		}

	if (features->iStringNeeded)

		{

		if(((iOperator.Value() == EFuncExists) && (versionStr != KFuncVersionPrefix)) && ((iOperator.Value() == EFuncExists) && (supportedLanguageStr != KFuncSupportedLanguagePrefix)))

			{

			aStream << L"(";

			if(iOperator.Value() == EFuncExists)

				{

				aStream << L"\"";

				}

			iString.AddPackageEntry(aStream, aVerbose);

			if(iOperator.Value() == EFuncExists)

				{

				aStream << L"\"";

				}

			aStream << L")";

			}

		}

	if (features->iNumberNeeded)

		{

		if(iOperator.Value() == EPrimTypeVariable)

			{

			if(iInteger.Value() == EVarLanguage)

				{

				aStream << L"LANGUAGE";

				}

			else

				{

				for (int i=0; KVariables[i].iName != NULL; ++i)

					{

					if (KVariables[i].iId == iInteger)

						{

						aStream << KVariables[i].iName;

						}

					}

				}

			}

		else

			{

			aStream << iInteger;

			}

		}

	}

void CSISExpression::WriteVersionCondition(std::basic_ostream<wchar_t>& aStream, bool aVerbose) const

	{

	std::wstring parseString = iString.GetString().substr(KFuncVersionPrefix.length());

	std::wstring outputArgs;

	try

		{

		// *** Parse Package UID Argument ***

		std::wstring packageUidStr;

		if(!ExtractNextToken(parseString,packageUidStr))

			{

			throw "Failed to Parse Package UID";

			}

		// Package UID format checking

		packageUidStr[1] = tolower(packageUidStr[1]);

		if(packageUidStr.find(L"0x") != 0 || packageUidStr.length() != 10)

			{

			throw "Invalid Package UID Format";

			}

		// Check that the UID string can be converted to Hexadecimal

		if(!IsHexadecimal(packageUidStr.substr(2)))

			{

			throw "Package UID contains non hexadecimal characters";

			}

		// Update Condition Output 

		outputArgs.append(packageUidStr);

		outputArgs.append(L",");

		// *** Parse Relational Operator ***

		std::wstring relationOpStr;

		if(!ExtractNextToken(parseString,relationOpStr))

			{

			throw "Failed to Parse the Relational Operator";

			}

		// Update the condition argument string as necessary depending on the operator code

		if(relationOpStr == L"ET") 

			{

			outputArgs.append(L"=");

			}

		else if(relationOpStr == L"LT")

			{

			outputArgs.append(L"<");

			}

		else if(relationOpStr == L"LE") 

			{

			outputArgs.append(L"<=");

			}

		else if(relationOpStr == L"GT")

			{

			outputArgs.append(L">");

			}

		else if(relationOpStr == L"GE") 

			{

			outputArgs.append(L">=");

			}

		else if(relationOpStr == L"NE")

			{

			outputArgs.append(L"<>");

			}

		else 

			{

			// If the operator is not recognised, throw an exception

			throw "Invalid Relational Operator";

			}

		// Update Condition Output

		outputArgs.append(L",");

		// *** Parse Major Version Component ***

		std::wstring vMajorStr;

		if(!ExtractNextToken(parseString,vMajorStr))

			{

			throw "Failed to parse the MAJOR version component";

			}

		// Check and convert the wstring to an integer

		TInt vMajor;

		if(!IsDecimal(vMajorStr,vMajor))

			{

			throw "MAJOR version component contains non numeric characters (0-9)";

			}

		// Check the Major component value lies within range

		if(vMajor < 0 || vMajor > 127)

			{

			throw "MAJOR version component out of range (0 - 127)";

			}

		// Update Condition Output

		outputArgs.append(vMajorStr);

		outputArgs.append(L",");

		// *** Parse Minor Version Component ***

		std::wstring vMinorStr;

		if(!ExtractNextToken(parseString,vMinorStr))

			{

			throw "Failed to parse the MINOR version component";

			}

		// Check and convert the wstring to an integer

		TInt vMinor;

		if(!IsDecimal(vMinorStr,vMinor))

			{

			throw "MINOR version component contains non numeric characters (0-9)";

			}

		// Check the Minor component value lies within range

		if(vMinor < 0 || vMinor > 99)

			{

			throw "MINOR version component out of range (0 - 99)";

			}

		// Update Condition Output

		outputArgs.append(vMinorStr);

		outputArgs.append(L",");

		// *** Parse Build Version Component ***

		std::wstring vBuildStr(parseString); 

		// Check and convert the wstring to an integer

		TInt vBuild;

		if(!IsDecimal(vBuildStr,vBuild))

			{

			throw "BUILD version component contains non numeric characters (0-9)";

			}

		// Check the Build component value lies within range

		if(vBuild < 0 || vBuild > 32767)

			{

			throw "BUILD version component out of range (0 - 32767)";

			}

		// Update Condition Output

		outputArgs.append(vBuildStr);

		// Output the successfully parsed version condition to the stream

		aStream << L"version(";

		aStream << outputArgs;

		aStream << L")";

		}

	catch(const char* aWarnMsg) 

		{

		// Convert Char* into a wstring 

		TInt bufferLength = strlen(aWarnMsg);

		wchar_t* buffer = new wchar_t[bufferLength+1];

		mbstowcs(buffer,aWarnMsg,bufferLength+1);

		std::wstring msgString(buffer);