#include <iostream>
#include <string>
#include <vector>
#include <map>
#include <fstream>
#include <getopt.h>
#include <cstdlib>

using namespace std;

string getHelpString(){
    return "\nUsage : Blang input-file [OPTION]\n\n"
    "  -o output\t\tWrite output to file.\n"
    "  -l lib\t\tSearch the library named library.\n"
    "  -L dir\t\tadd all the libraries in the folder dir.\n"
    "  -v\t\t\tShow version then exit\n"
    "  -h\t\t\tShow help then exit\n";
}

string getVersionString(){
    string str;
/*
    str += "g1m-assembler-mkg1m version ";
    str += BLANG_VERSION;
    str += " release ";
    str += BLANG_RELEASE;
*/
    return str;
}

int main(int argc,char *argv[])
{
	vector<string> outputFiles;
	vector<string> inputFiles;
	vector<string> CLibraries;
	vector<string> CLibraryDir;

	int c;
	opterr = 0; // disable getopt error

	int option_index = 0;
	static struct option long_options[] = {
            {"version", no_argument, 0,  'v' },
            {"help",  	no_argument, 0,  'h' },
            {"input",	required_argument, 0,  'i' },
            {"output",	required_argument, 0,  'o' },
            {0,         0,                 0,  0 }
        };

	while ((c = getopt_long(argc, argv, "o:i:l:L:vh", long_options,&option_index)) != -1){
		switch (c){
			case 'o':
				outputFiles.push_back(optarg);	//get output files
				break;
			case 'i':
				inputFiles.push_back(optarg);	//get input files
				break;
			case 'l':
				CLibraries.push_back(optarg);	//get input files
				break;
			case 'L':
				CLibraryDir.push_back(optarg);	//get input files
				break;
			case 'v':
				cout << getVersionString();
				return 0;
			case 'h':
				cout << getHelpString();
				return 0;
			case '?':
				if (optopt == 'o')
					fprintf (stderr, "Option -%c requires an argument.\n", optopt);
				else if (isprint (optopt))
					fprintf (stderr, "Unknown option `-%c'.\n", optopt);
				else
					fprintf (stderr,"Unknown option character `\\x%x'.\n",optopt);
				return 1;
			default:
				return 1;
		}
	}

	//get input files
	for (int index = optind; index < argc; index++)
		inputFiles.push_back(argv[index]);

	if(inputFiles.empty()){
		fprintf (stderr, "No input file\n");
		return 1;
	}

    return 0;
}