#include "parse_args.hpp"



void usage() {

    cout << "\n   +-++-++-+ +-+ +-++-++-++-++-+"
            "\n   |w||3||b| |-| |C||r||4||c||k|"
            "\n   +-++-++-+ +-+ +-++-++-++-++-+\n\n"
            "\n     -h                 this screen"
            "\n     -v                 be verbose"
            "\n     -s*                single hash"
            "\n     -f*                file of hashes"
            "\n     -t* [NUM(1-5)]     check NUM amount of sites for each hash"
            "\n\n  * requires an argument\n\n";

    exit(-1);

}



int set_top(char *x) {

    string t = x;

    if((t.length() == 1) && (isdigit(x[0])) && ((atoi(x) <= 3) && (atoi(x) > 0))) {
         return(atoi(x));
    }
    else {
         cout << "\n\n~! -t value is invalid !~\n\n";
         return(false);
    }

}



options parse_args(int arg_count, char **arg_values) {

    if(arg_count > 5) usage();

    int o;
    options ops = { 0, "", "" };

    while((o = getopt(arg_count, arg_values, "hvrt:s:f:")) != -1)
    {
         switch(o)
         {
              case 'h': usage();
              case 'v': VERBOSE = true; break;
              case 'r': RANDOMIZE = true; break;
              case 't': if(!((ops.top = set_top(optarg)))) usage(); else break;
              case 's': ops.single_hash = optarg; break;
              case 'f': ops.file_loc = optarg; break;
              case '?': usage();
              default: usage();
         }
    }

    if(((ops.file_loc.empty()) && (ops.single_hash.empty())) || ((!ops.file_loc.empty()) && (!ops.single_hash.empty()))) usage();

    return(ops);

}