/*

* 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: 

*

*/

#pragma warning (disable: 4786)

// System includes

#include <iostream>

#include <fstream>

#include <hal_data.h>

#include <algorithm>

// User includes

#include "stringutils.h"

#include "is_utils.h"

#include "configmanager.h"

// Enumerations

enum TConfigAttributeFlag

    {

    EConfigFlagTypeNotSupported = 1,

    EConfigFlagTypeNumeric      = 2,

    EConfigFlagTypeBoolean      = 4,

    EConfigFlagTypeYesNo        = 8,

	EConfigFlagTypeString		= 16

    };

// Structures

struct ConfigAttribute

	{

	const wchar_t* iName;

	TUint32 iId;

    TUint32 iFlags;

	};

// Constants

const std::string KConfigAttributeHexPrefix = "0x";

const std::string KConfigAttributeValueTrue = "TRUE";

const std::string KConfigAttributeValueFalse = "FALSE";

const std::string KConfigAttributeValueYes = "YES";

const std::string KConfigAttributeValueNo = "NO";

const ConfigAttribute KConfigAttributes[] =

	{

    // HAL entries

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	{L"POWERBACKUP",				HALData::EPowerBackup,                  EConfigFlagTypeNumeric | EConfigFlagTypeBoolean | EConfigFlagTypeYesNo },

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

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

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

	{L"KEYBOARDCLICK",				HALData::EKeyboardClick,                EConfigFlagTypeNumeric | EConfigFlagTypeBoolean | EConfigFlagTypeYesNo },

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

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

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

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

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

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

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

	{L"BACKLIGHT",					HALData::EBacklight,                    EConfigFlagTypeNumeric | EConfigFlagTypeBoolean | EConfigFlagTypeYesNo },

	{L"PEN",						HALData::EPen,                          EConfigFlagTypeNumeric | EConfigFlagTypeBoolean | EConfigFlagTypeYesNo },

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

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

	{L"PENDISPLAYON",				HALData::EPenDisplayOn,                 EConfigFlagTypeNumeric | EConfigFlagTypeBoolean | EConfigFlagTypeYesNo },

	{L"PENCLICK",					HALData::EPenClick,                     EConfigFlagTypeNumeric | EConfigFlagTypeBoolean | EConfigFlagTypeYesNo },

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

	{L"MOUSE",						HALData::EMouse,                        EConfigFlagTypeNumeric | EConfigFlagTypeBoolean | EConfigFlagTypeYesNo },

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

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

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

	{L"CASESWITCH",					HALData::ECaseSwitch,                   EConfigFlagTypeNumeric | EConfigFlagTypeBoolean | EConfigFlagTypeYesNo },

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

	{L"INTEGRATEDPHONE",			HALData::EIntegratedPhone,              EConfigFlagTypeNumeric | EConfigFlagTypeBoolean | EConfigFlagTypeYesNo },

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

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

	{L"KEYBOARDBACKLIGHTSTATE",		HALData::EKeyboardBacklightState,       EConfigFlagTypeNumeric | EConfigFlagTypeBoolean | EConfigFlagTypeYesNo },

	{L"ACCESSORYPOWER",				HALData::EAccessoryPower,               EConfigFlagTypeNumeric | EConfigFlagTypeBoolean | EConfigFlagTypeYesNo },

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

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

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

    // Custom entries for Interpretsis only

	{L"LANGUAGE",					KVariableLanguage,                      EConfigFlagTypeNumeric },

	{L"DRIVE",						KVariableDrive,							EConfigFlagTypeString },

	{L"DEVICE_SUPPORTED_LANGUAGE",	KVariableDevSupLng,						EConfigFlagTypeNumeric }

	};

ConfigManager::ConfigManager(const CParameterList& aParamList)

    {

	const std::wstring& fileName = aParamList.ConfigFileName();

    if ( FileExists( fileName ) )

        {

    	std::string fName;

        //

        std::ifstream stream;

	    stream.open( fName.c_str(), std::ios::binary );

        //

        try

            {

            ReadFile( stream );

            stream.close();

            }

        catch( const ConfigManagerException& e )

            {

            stream.close();

            throw e;

            }

        }

	// Add the Rom drive and System drive definition to the DriveMap

	// So all the drives info. will be available from ConfigManager

	AddRomAndSystemDrives(aParamList);

    }

ConfigManager::~ConfigManager()

    {

	// Clean up iDrives

	for( DrivesMap::iterator it=iDrives.begin(); it != iDrives.end(); it++ )

        {

        DriveAttributes* entry = it->second;

		delete entry;

        }

	iDeviceSupportedLanguages.clear();

	iMatchingSupportedLanguages.clear();

    }

void ConfigManager::AddRomAndSystemDrives(const CParameterList& aParamList)

	{

	if ( aParamList.IsFlagSet(CParameterList::EFlagsZDriveSet)) 

		{

		CheckAndAddDrive('z', aParamList.RomDrivePath());

		}

	if ( IsTargetDrivePresent('z') )

		{

		if (aParamList.IsFlagSet(CParameterList::EFlagsRomRofsLogFilesSet) &&

			aParamList.IsFlagSet(CParameterList::EFlagsDisableZDriveChecksSet) == 0 )

			{

			// z drive is set via ROM/ROFS logs, otherwise, command parser would have throw an exception

			std::stringstream err;

			err << "Cannot specify both -r option in command line and define the directory "

				<< "representing the ROM drive in config file";

			throw ConfigManagerException( ConfigManagerException::ETypeDriveError, err.str());

			}

		}

	else

		{

		if (!aParamList.IsFlagSet(CParameterList::EFlagsDisableZDriveChecksSet))

			{

			// z drive defiend by ROM/ROFS logs

			if (aParamList.IsFlagSet(CParameterList::EFlagsRomRofsLogFilesSet))

				{

				CheckAndAddDrive('z', L"");

				}

			else

				{

				// z drive is not set via config.ini or by -z option

				std::stringstream err;

				err << "Missing -r option and the ROM drive representing directory is not defined; "

					<< "Must specify one of them (BUT not both)";

				throw ConfigManagerException( ConfigManagerException::ETypeDriveError, err.str());

				}

			}

		}

	if (aParamList.IsFlagSet(CParameterList::EFlagsCDriveSet)) 

		{

		CheckAndAddDrive(aParamList.SystemDriveLetter(), aParamList.SystemDrivePath());

		}

	if ( !IsTargetDrivePresent(aParamList.SystemDriveLetter()) )

		{

		std::stringstream err;

		err << "The directory representing the system drive is not defined";

		throw ConfigManagerException( ConfigManagerException::ETypeDriveError, err.str());

		}

	}

void ConfigManager::SetValue( TUint32 aKey, TUint32 aValue )

    {

    iValues[ aKey ] = aValue;

    }

bool ConfigManager::ValueExists( TUint32 aKey ) const

    {

    ConfigurationMap::const_iterator it = iValues.find( aKey );

    bool found = ( it != iValues.end() );

    return found;

    }

TUint32 ConfigManager::ValueById( TUint32 aKey ) const

    {

    assert( ValueExists( aKey ) );

    ConfigurationMap::const_iterator it = iValues.find( aKey );

    const TUint32 ret = it->second;

    return ret;

    }

void ConfigManager::ReadFile( std::ifstream& aStream )

    {

    int lineNumber = 1;

    std::string line;

    //

    while( std::getline( aStream, line ) )

        {

        ProcessLine( line, lineNumber++ );

        }

    }

void ConfigManager::ProcessLine( const std::string& aLine, int aLineNumber )

    {

	std::string line = aLine;

    // Strip comments

	std::string::size_type commentPos = line.find( "//" );

    if ( commentPos != std::string::npos )

        {

        line = line.substr( 0, commentPos );

        }

    if  ( line.length() )

        {

    	std::string::size_type breakPos = line.find( "=" );

        if ( breakPos != std::string::npos )

            {

        	std::string value = line.substr( breakPos + 1 );

            line = line.substr( 0, breakPos );

            // Trim & tidy up before the conversion phase

            line = StringUtils::TrimWhiteSpace( line );

            value = StringUtils::TrimWhiteSpace( value );

            if ( line.length() && value.length() )

                {

                ConvertLineData( line, value, aLineNumber );

                }

            }

        }

    }

std::vector<TInt>& ConfigManager::GetDeviceSupportedLanguages()

	{

		return iDeviceSupportedLanguages;

	}

void ConfigManager::ConvertLineData( const std::string& aKey, std::string& aValue, int aLineNumber )

    {

    const ConfigAttribute* attrib = AttributeByName( aKey );

    if ( attrib )

        {

        // Now try to convert the value string according to the attribute's

        // conversion specification.

        if ( attrib->iFlags & EConfigFlagTypeNotSupported )

            {

            throw ConfigManagerException( ConfigManagerException::ETypeKeywordNotSupported, 

                                          aKey,

                                          aValue,

                                          aLineNumber );

            }

        else

            {

            TUint32 num = 0;

            // First try numeric conversion, since this satsifies most of

            // the entries. Then try bool / yes / no

            if ( ( attrib->iFlags & EConfigFlagTypeNumeric ) && TryStringToNumeric( aValue, num ) )

                {

            	if ( attrib->iId == KVariableDevSupLng )

            		{

            		if ( !AddDeviceSupportedLanguage(num))

            			{

    					throw ConfigManagerException( ConfigManagerException::ETypeDuplicateDefinition, 

    													aKey, aValue, aLineNumber );

    					}

                	return;

            		}

                }

            else if ( ( attrib->iFlags & EConfigFlagTypeBoolean ) && TryStringToBool( aValue, num ) )

                {

                }

            else if ( ( attrib->iFlags & EConfigFlagTypeYesNo ) && TryStringToYesNo( aValue, num ) )

                {

                }

			else if ( ( attrib->iFlags & EConfigFlagTypeString ) && (attrib->iId == KVariableDrive) )

				{

	            DriveAttributes* newDrive = new DriveAttributes();

				int driveLetter = ConvertToDriveAttributes(StringUtils::ToLower(aValue), newDrive);

				if (driveLetter == 0)

					{

					delete newDrive;

					throw ConfigManagerException( ConfigManagerException::ETypeInvalidValueForKey, 

													aKey, aValue, aLineNumber );

					}

				if ( !IsDirectory(newDrive->iDir) )

					{

					delete newDrive;

					throw ConfigManagerException( ConfigManagerException::ETypeInvalidDirectory, 

													aKey, aValue, aLineNumber );

					}

				if (!AddDrive(newDrive, driveLetter))

					{

					delete newDrive;

					throw ConfigManagerException( ConfigManagerException::ETypeDuplicateDefinition, 

													aKey, aValue, aLineNumber );

					}

				return;

				}

            else

                {

                throw ConfigManagerException( ConfigManagerException::ETypeInvalidValueForKey, 

                                              aKey,

                                              aValue,

                                              aLineNumber );

                }

            // Assume okay if got here.

            if ( !ValueExists( attrib->iId ) )

                {

                SetValue( attrib->iId, num );

                }

            else

                {

                throw ConfigManagerException( ConfigManagerException::ETypeDuplicateDefinition, 

                                              aKey,

                                              aValue,

                                              aLineNumber );

                }

            }

        }

	else

		{ 

	 	// DEF117196

	 	// Config files can be created by the licensee from HAL HDA files. It is cumbersome if they 

	 	// produce an error and halt if there is an attribute defined in the config file which is not 

	 	// relevant to interpretsis.

	 	// Instead a warning is produced.

		std::ostringstream stream;

    	stream << "Unsupported keyword at line " << aLineNumber << " of ini file [" << aKey << " = " << aValue << "] ";

    	stream << std::endl;

		LWARN( finalMessage );

		}

    }

std::string ConfigManager::AttributeNameById( TUint32 aId )

    {

	std::string ret = "Unknown/Unsupported attribute";

    //

    const int attributeCount = sizeof( KConfigAttributes ) / sizeof( ConfigAttribute );

	for( int i=0; i<attributeCount; i++ )

		{

		if  ( KConfigAttributes[i].iId == aId )

			{

			std::wstring entry( KConfigAttributes[i].iName );

			}

		}

    //

    return ret;

    }

const ConfigAttribute* ConfigManager::AttributeByName( const std::string& aName )

    {

	std::string upperCased( aName );

    upperCased = StringUtils::ToUpper( upperCased );

    std::wstring searchFor;

    //

    const int attributeCount = sizeof( KConfigAttributes ) / sizeof( ConfigAttribute );

    const ConfigAttribute* ret = NULL;

    //

	for( int i=0; i<attributeCount; i++ )

		{

		if  ( KConfigAttributes[i].iName == searchFor )

			{

			ret = &KConfigAttributes[i];

			break;

			}

		}

    //

    return ret;

    }

bool ConfigManager::TryStringToNumeric( const std::string& aText, TUint32& aNumber )

    {

    bool convertedOk = false;

    //

    std::istringstream stringStream( aText );

    // Check for hex prefix

    if ( aText.length() > 2 && aText.substr( 0, 2 ) == KConfigAttributeHexPrefix )

        {

        // Skip 0x prefix

        stringStream.ignore( 2 );

        stringStream >> std::hex >> aNumber;

        convertedOk = ( !stringStream.fail() );

        }

    else

        {

        stringStream >> aNumber;

        convertedOk = ( !stringStream.fail() );

        }

    //

    return convertedOk;

    }

bool ConfigManager::TryStringToBool( const std::string& aText, TUint32& aNumber )

    {

    bool convertedOk = false;

    //

    std::string text = StringUtils::ToUpper( aText );

    if ( text == KConfigAttributeValueTrue )

        {

        aNumber = true;

        convertedOk = true;

        }

    else if ( text == KConfigAttributeValueFalse )

        {

        aNumber = false;

        convertedOk = true;

        }

    //

    return convertedOk;

    }

bool ConfigManager::TryStringToYesNo( const std::string& aText, TUint32& aNumber )

    {

    bool convertedOk = false;

    //

    std::string text = StringUtils::ToUpper( aText );

    if ( text == KConfigAttributeValueYes )

        {

        aNumber = true;

        convertedOk = true;

        }

    else if ( text == KConfigAttributeValueNo )

        {

        aNumber = false;

        convertedOk = true;

        }

    //

    return convertedOk;

    }

int ConfigManager::ConvertToDriveAttributes( const std::string& aString, DriveAttributes* aDrive)

    {

	std::string::const_iterator it = aString.begin();

	std::string::const_iterator end = aString.end();

	std::string::const_iterator currentPos = it;

	int driveLetter = 0;

	if (currentPos != end)

        {

		std::string temp;

        currentPos = std::find(it, end, ' ');

		if (currentPos == end)

			{

			return 0;

			}

		// Set the drive representation location

		temp =  StringUtils::TrimWhiteSpace( std::string(currentPos, end) );

		it = temp.begin();

		end = temp.end();

		// Look for the next 'space' if found

		currentPos = std::find(it, end, ' ');

		if (currentPos - it != 1)

			{

			// The drive letter is more than one character