/*  cfetch is my try to implement a neofetch/fastfetch/commiefetch clone in C.
*   Copyright (C) 2026  Anser <https://codeberg.org/Anser/cfetch>
*
*  cfetch is free software: you can redistribute it and/or modify it 
*  under the terms of the GNU General Public License as published by the 
*  Free Software Foundation, either version 3 of the License, 
*  or (at your option) any later version.
*
*  cfetch is distributed in the hope that it will be useful, but 
*  WITHOUT ANY WARRANTY; without even the implied warranty of 
*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
*  See the GNU General Public License for more details.
*
*  You should have received a copy of the GNU General Public License along 
*  with this program. If not, see <https://www.gnu.org/licenses/>. 
*/

#include "../include/cfetch.h"

#define COMMAND(large, small) \
        (!strcmp(argv[i], large) || !strcmp(argv[i], small))

void parse_cmd(int argc, char **argv)
{
        for (int i = 1; i < argc; i++) {
                if (argv[i][0] != '-')
                {
                        fprintf(stderr, 
                                        "Error: invalid option: \"%s\". An option must start with `-`\n", 
                                        argv[i]); 
                        print_help();
                        exit(1);
                }
                if (COMMAND("--help", "-h")) {
                        print_help();
                        exit(1);
                } 
                if (COMMAND("--version", "-v")) {
                        printf("cfetch version: 0.1.1\n");
                        exit(0);
                } else {
                        fprintf(stderr, 
                                        "Error: invalid option: \"%s\"\n", 
                                        argv[i]); 
                        print_help();
                        exit(1);
                }
        }

        return;
}

void parse_args(int argc, char **argv)
{
        if (argc == 1) {
                return;
        }

        parse_cmd(argc, argv);
        return;
}

void print_help()
{
        printf("\ncfetch, the neofetch/commifetch clone!\n");
        printf("\nusage: cfetch\t [-v | --version] [-h | --help]\n");  
        printf(" -v --version\t prints the current version of cfetch.\n");
        printf(" -h --help\t prints the helper menu of cfetch.\n");
}