#include <iostream>
#include <fstream>
#include <iomanip>
using namespace std;

#include "mywrapper.h"

bool extract_bundled_file( const char[], int, char* );

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

	string tempdir = (string)argv[0] + ".tmp"; //temporary directory where we will store extracted files
	string jarfile = tempdir + "/greenstone3.jar"; //where we will store the jar file
	bool succeeded = false;

	//create the temp folder
	cout << "Creating temp directory" << endl;
	succeeded = ( 0 == system( ("mkdir " + tempdir).c_str() ) );
	if ( !succeeded ) {
		cout << "Failed to write to create the temp directory '" << tempdir << "'" << endl;
		cout << "Check that it does not already exist and try again" << endl;
		cout << "Exiting" << endl;
		return 1;
	}

	//extract files
	cout << "Extracting JAR file..." << endl;
	succeeded = extract_bundled_file( greenstone3jar, sizeof(greenstone3jar), (char*)jarfile.c_str() );
	if ( !succeeded ) {
		cout << "failed" << endl;
		cout << "Failed to extract the JAR file to '" << jarfile << "'" << endl;
		cout << "The JAR file may have been bundled with this executable incorrectly" << endl;
		cout << "Or this program may not have sufficient file permissions to write it to disk" << endl;
		cout << "Exiting" << endl;
		return 1;
	}

	//run the jar
	cout << "Running the jar" << endl;
	system( ("java -jar " + jarfile).c_str() );

	//delete the temp files
	cout << "Deleting the temp directory" << endl;
	system( ("rm -rf " + tempdir).c_str() );
	system( "rm ant.install.log" );


	return 0;

}

bool extract_bundled_file( const char data[], int size, char* filename ) {

	//delete the file if it exists
	remove( filename );

	//open the file
	fstream binary_file( filename, ios::out|ios::binary );
	if ( !binary_file.good() ) {
		binary_file.close();
		return false;
	}

	//write the file
	binary_file.write( data, size );
	if ( !binary_file.good() ) {
		binary_file.close();
		return false;
	}

	//close the file
	binary_file.close();
	if ( !binary_file.good() ) {
		binary_file.close();
		return false;
	}

	return true;

}