#include <windows.h>

#include <fstream>
#include <iostream>
#include <string>

using namespace std;

void replace_all ( std::string & str, std::string const & pattern, std::string const & replacement ) {

	std::string::size_type start = str.find( pattern, 0 );

	while ( start != str.npos ) {
		str.replace( start, pattern.size(), replacement );
		start = str.find( pattern, start+replacement.size() );
	}

}

void show_help() {

	cout << "WirkXXX - Windows Release Kit for GreenstoneXXX" << endl;
	cout << "Helps you to create releases from the Repository" << endl << endl;

	cout << "usage: wirkXXX [args]" << endl;
	cout << "	-sim" << endl;
	cout << "		simulation only, don't actually do anything" << endl << endl;

	cout << "	-help" << endl;
	cout << "		show this help screen" << endl << endl;

	cout << "	-from <target>" << endl;
	cout << "		start execution from the target with the given target address" << endl << endl;

	cout << "	-to <target>" << endl;
	cout << "		stop execution just before the target with the given target address" << endl << endl;

	cout << "	-descend <target>" << endl;
	cout << "		execute only the target with the given address, including subtargets" << endl << endl;

	cout << "	-cp" << endl;
	cout << "		show the classpath being used by wirkXXX" << endl << endl;

}


int main(int argc, char** argv ) {

	string classpath, command;
	
	//some checks
	bool ok = true;
	if ( getenv( "JAVA_HOME" ) == NULL ) {
		cerr << "Please set JAVA_HOME before running wirkXXX" << endl;
		ok = false;
	}
	if ( getenv( "WIRKXXX_HOME" ) == NULL ) {
		cerr << "Please set WIRKXXX_HOME before running wirkXXX" << endl;
		ok = false;
	}
	if ( !ok ) {
		return -1;
	}

	//load environment variables
	string JAVA_HOME = getenv( "JAVA_HOME" );
	string WIRKXXX_HOME = getenv( "WIRKXXX_HOME" );
	putenv( ("ANT_HOME=" + WIRKXXX_HOME + "\\core\\ant").c_str() );
	
	//get the pwd
	string pwd;
	system( "CD > cd.dat" );
	ifstream file( "cd.dat" ) ;
	getline(file, pwd);
	file.close();
	system( "del cd.dat" );
		
	//create the command
	command = WIRKXXX_HOME + "\\core\\ant\\bin\\ant.bat -f \"" + WIRKXXX_HOME + "\\ant-scripts\\build.xml\" -addressing \"-Dwirk3.home=" + WIRKXXX_HOME + "\"";

	//pass on the arguments
	string a;
	bool simMode = false;
	for ( int i=0; i < argc; i++ ) {
		a = argv[i];
		
		if ( a.compare("-help") == 0 || a.compare("--help") == 0 ) {
			show_help();
			return 0;
		} else if ( a.compare("-cp") == 0 || a.compare("--cp") == 0 ) {
			cout << classpath;
			return 0;
		} else if ( a.compare("-sim") == 0) {
			command = command + " " + a;
			simMode = true;
		} else {
			command = command + " " + a;
		}

	}

	//set the basedir in the command
	command = command + " \"-Dbasedir=" + pwd + "\"";

	cout
		<< "O-----------------------------------------O" << endl
		<< "|                                         |" << endl
		<< "|   WiRKXXX                                 |" << endl
		<< "|   Windows Release Kit for GreenstoneXXX   |" << endl
		<< "|                                         |" << endl
		<< "O-----------------------------------------O" << endl
		;
	
	cout << "pwd: " << pwd << endl;
	cout << "command: " << command << endl;

	system( command.c_str() );
	
	return 0;

}