cd.c

/*
** EPITECH PROJECT, 2019
** PSU_minishell2_2018
** File description:
** cd
*/

#include "../../include/my.h"
#include <fcntl.h>

void go_back_directory(env_t *env)
{
    int i = my_strlen(find_node(env, "PWD")->content) - 1;

    for (; find_node(env, "PWD")->content[i] != '/' &&
        find_node(env, "PWD")->content[i] != '\0'; i--);
    find_node(env, "PWD")->content[i] = '\0';
}

void cd_opener(env_t *env, command_t *cmd)
{
    int pass = 0;

    (my_strcmp(cmd->args[1], "..") == 0) ? go_back_directory(env) : 0;
    if (chdir(cmd->args[1]) == -1 && my_strcmp(cmd->args[1], "-") == 0) {
        my_putstr(cmd->args[1]);
        if (open(cmd->args[1], O_RDONLY) != -1) {
            my_putstr(": Not a directory.\n");
            pass = 1;
        } else {
            my_putstr(": No such file or directory.\n");
            pass = 1;
        }
        if (pass == 0) {
            my_strcat(find_node(env, "PWD")->content, cmd->args[1]);
            printf("%s\n", find_node(env, "PWD")->content);
        }
    }
}

void cd_chdir(env_t *env)
{
    if (chdir(find_node(env, "HOME")->content) == -1) {
        my_putstr(find_node(env, "HOME")->content);
        if (open(find_node(env, "HOME")->content, O_RDONLY) != -1)
            my_putstr(": Not a directory.\n");
        else
            my_putstr(": No such file or directory.\n");
    }
}

void cd_cmd(env_t *env, command_t *cmd)
{
    if (cmd->args[1] != NULL)
        cd_opener(env, cmd);
    else
        cd_chdir(env);
}