/*

* Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).

* 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: 

*

*/

#include "options.h"

#include <iostream>

#include <windows.h>

void Options::DisplayError (const Exceptions& aErr)

	{

	const char* msg;

	switch (aErr)

		{

		case EUnknownOption:

			msg = "Unknown option specified";

			DisplayUsage ();

			break;

		case EMissingRegistryEntry:

			msg = "One of the registry entry (PkgUID ,PkgName and VendorName ) not specified";

			DisplayUsage ();

			break;

		case EMissingPkgUID:

			msg = "Package UID not specified ";

			DisplayUsage ();

			break;

		case EInvalidOption:

			msg = "Invalid option specified ";

			DisplayUsage ();

			break;

		case EInvalidPackageUID:

			msg = "Invalid Package UID";

			break;

		case ESetEnvironmentVariable:

			msg = "Set the environment variable or \nspecify registry file path";

			break;

		case EInvalidFile:

			msg = "Registry format not supported .";

			break;

		default:

			msg = "Unknown error";

			break;

		}

	cerr << CommandName () << ": Error : " << msg << endl;

	}

void Options::DisplayVersion()

	{

	cout << "\nDumpSWIRegistry Utility   Version " << KMajorVersion << '.' \

			<< setw(2) << KMinorVersion << setfill('0') <<  "\nCopyright (c) 2005-2006 Symbian Software Limited . All rights reserved.\n\n" << flush;

	}

void Options::DisplayUsage()

	{

	cout << "Usage: DumpSWIRegistryTool [-v] [-h] [RegistryPath] [-p PackageUid] "  

			"\n\t\t\t[-r PackageUid PackageName VendorName] \n\n" \

			" -v		specifies the version of the tool \n" \

			" -h		Prints the help message\n" \

			" -p		interpret package information by specifying packageuid \n\n" \

			" -r		Displays controller information about a particular package ,"

			"\n\t\twhen it's registry entry(package uid,package name & vendor name"

			"\n\t\t)are specified."

			"\n\t\tThe registry entry can be chosen from the information displayed"

			"\n\t\tby -p option.\n\n" \

			"RegistryPath	swiregistry path - OPTIONAL if Environment PATH is set \n" \

			"PackageUid	UID of the package.  \n" \

			"PackageName	Name of the package obtained when -p option is used \n" \

			"VendorName	Name of the vendor obtained when -p option is used \n\n" \

			"Set the environment variable DUMPSWIREGISTRY to the sisregistry path - DEFAULT: \n" \

			"DUMPSWIREGISTRY=\\epoc32\\<platform>\\c\\sys\\install\\sisregistry\\ \n" \

			"All inputs must be specified in the same order as mentioned above. \n\n" << flush;

	}

Options::Options (int argc, char** argv)

	:iVersion (false),

	iHelpFlag (false),

	iPkgUIDSpecified (false),

	iRegistryEntrySpecified (false)

	{

	int argCount = argc;

	const char* buffer = getenv("DUMPSWIREGISTRY");

	if(buffer)

		{

		string regPath(buffer);

		iRegistryFilePath = regPath;

		}

	++argv;

	//check whether the first argument is a registry path

	if((**argv != '-') && (**argv != '/'))

		{

		iRegistryFilePath = *argv;

		++argv;

		--argc;

		} 

	if(*argv != NULL)

		{

		if ((**argv != '-') && (**argv != '/'))

			{

			throw EInvalidOption;

			}

		switch ((*argv)[1])

			{

			case 'h':

			case 'H':

			case '?':

				{

				iHelpFlag = true;

				DisplayUsage();

				break;

				}

			case 'v':

			case 'V':

				{

				iVersion = true;

				DisplayVersion();

				break;

				}

			case 'p':

			case 'P':

				{

				iPkgUIDSpecified = true;

				if(iRegistryFilePath.length() == 0)

					{

					throw ESetEnvironmentVariable;

					}

				if(argc !=3)

					{

					throw EInvalidOption;

					}

				iPkgUID = *++argv;

				break;

				}

			case 'r':

			case 'R':

				{

				iRegistryEntrySpecified = true;

				if(iRegistryFilePath.length() == 0)

					{

					throw ESetEnvironmentVariable;

					}

				if(argc != 5)

					{

					throw EInvalidOption;

					}

			iPkgUID = *++argv;

			iPkgName = *++argv;

			iVendorName = *++argv;

			break;

			}

			default:

				{

				throw EInvalidOption;

				}

			}

		}

	else

		{

		throw EInvalidOption;

		}

	CheckCmdLineExceptions();

	}

void Options::CheckCmdLineExceptions() 

	{

	//if -p is specified 

	if (iPkgUIDSpecified)

		{

		if(iPkgUID.length()==0)

			{

			throw EMissingPkgUID;	

			}

		//check whether a valid pkg uid is specified

		else if((iPkgUID.length()<8) || (iPkgUID.length()>8))

			{

			throw EInvalidPackageUID;

			}

		else

			{

			//handles both ways of specifying registrypath(for instance:\c\sys\install\sisregistry or \c\sys\install\sisregistry\)

			int pos = iRegistryFilePath.find_last_of("\\" ,iRegistryFilePath.length());

			if(pos != (iRegistryFilePath.length()-1))

				{

				iRegistryFilePath.append("\\");

				}

			iRegistryFilePath.append(iPkgUID);

			iPkgUID = iRegistryFilePath;			

			}

		}

	//if -r is specified and any one of the entries are missing

	if(iRegistryEntrySpecified)

		{

		if(((iRegistryFilePath.length())== 0) || ((iPkgName.length())== 0) || ((iVendorName.length())== 0))

			{

			throw EMissingRegistryEntry;

			}

		else

			{

			int pos = iRegistryFilePath.find_last_of("\\" , iRegistryFilePath.length());

			if(pos != (iRegistryFilePath.length()-1))

				{

				iRegistryFilePath.append("\\");

				}

			iRegistryFilePath.append(iPkgUID);

			}

		}

	}

Options::~Options()

	{

	}