typedef enum {
    OP_APPEND,
    OP_READ,
    OP_DELETE,
    OP_LIST,
    OP_REFORMAT,
    OP_CREATE_FS
} operation_t;

int main(int argc, char** argv) {
    char file[PATH_MAX];
    bool file_arg_set = false;
    operation_t operation = OP_LIST;

    if (argc > 1) {
        int i = 1;
        // iterate over all args
        for (; i < argc; i++) {
            const size_t length = strlen(argv[i]);
            const char *arg = argv[i];

            // it's a flag
            if (arg[0] == '-') {
                // long-name flag
                if (arg[1] == '-') {
                    // we can't use switch-case for strings
                    if (strcmp(arg, "--append") == 0) operation = OP_APPEND;
                    if (strcmp(arg, "--read") == 0) operation = OP_READ;
                    if (strcmp(arg, "--delete") == 0) operation = OP_DELETE;
                    if (strcmp(arg, "--list") == 0) operation = OP_LIST;
                    if (strcmp(arg, "--reformat") == 0) operation = OP_REFORMAT;
                    if (strcmp(arg, "--create") == 0) operation = OP_CREATE_FS;
                }
                    // short-name flag
                else {
                    int k = 1;
                    for (; k < length; k++) {
                        switch (arg[k]) {
                            case 'a':
                                operation = OP_APPEND;
                                break;
                            case 'r':
                                operation = OP_READ;
                                break;
                            case 'd':
                                operation = OP_DELETE;
                                break;
                            case 'l':
                                operation = OP_LIST;
                                break;
                            case 'R':
                                operation = OP_REFORMAT;
                                break;
                            case 'C':
                                operation = OP_CREATE_FS;
                                break;
                        }
                    }
                }
            } else {
                memcpy(file, arg, length + 1);
                file_arg_set = true;
            }
        }
    }

    switch (operation) {
        case OP_APPEND: {
            /* */
            break;
        }
        case OP_LIST: {
            /* */
            break;
        }
        case OP_READ: {
            /* */
            break;
        }
        case OP_DELETE: {
            /* */
            break;
        }
        case OP_REFORMAT: {
            /* */
            break;
        }
        default:
            break;
    }

}