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#include "shell.h"

/**
 * get_filename - takes in first argument and returns its filename
 *
 * @arg: first tokenized argument
 * Return: filename
 */
char *get_filename(char *arg)
{
        char *str = NULL, *token = NULL, *last_token, *mod_token = NULL;
        size_t i, len;
        int j;

        str = _strdup(arg);
        token = strtok(str, "/");
        while (token != NULL)
        {
                last_token = token;
                token = strtok(NULL, "/");
        }
        len = _strlen(last_token) + 2;
        mod_token = malloc(sizeof(char) * len);
        if (mod_token == NULL)
        {
            perror("Malloc failed")
        }
        /*inserting character at first position*/
        *mod_token = '/';
        j = 0;
        for (i = 1; i < len - 1; i++)
        {
                *(mod_token + i) = last_token[j];
                j++;
        }
        *(mod_token + i) = '\0';
        free(str);
        /*Remember to free mod_token after using it*/
        return (mod_token);
}