/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   convert_d_i.c                                      :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: tmaze <tmaze@student.42.fr>                +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2018/05/05 19:17:53 by tmaze             #+#    #+#             */
/*   Updated: 2018/05/05 19:40:49 by tmaze            ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libftprintf.h"

char	*apply_precision_d(char *s, int prec)
{
	char	*ret;
	char	*tmp;
	int		nb_fill;

	nb_fill = prec - ft_strlen(s);
	if ((ret = ft_strsub(s, 0, prec)) == NULL)
		return (NULL);
	ft_strdel(&s);
	if (nb_fill > 0 && (s = ft_strnew(nb_fill)) != NULL)
	{
		ft_memset(s, '0', nb_fill);
		tmp = ft_strjoin(s, ret);
		ft_strdel(&s);
		ft_strdel(&ret);
		ret = tmp;
		tmp = NULL;
	}
	ft_strdel(&tmp);
	return (ret);
}

char	*apply_width_d(char *s, int width, char align)
{
	char	*add;
	char	*tmp;
	
	if ((add = ft_strnew(width - ft_strlen(s))) == NULL)
		return (NULL);
	ft_memset(add, ' ', width - ft_strlen(s));
	if (align == '-')
	{
		tmp = add;
		add = s;
		s = tmp;
	}
	tmp = ft_strjoin(add, s);
	ft_strdel(&add);
	ft_strdel(&s);
	return (tmp);
}

char	*convert_d_i(char *flags, int *dim, int nb)
{
	char	*ret;
	char	*tmp;
	char	*atoi;
	int		atoi_len;

	atoi = ft_itoa(ft_abs(nb));
	atoi_len = ft_strlen(atoi);
	if (dim[1] > atoi_len)
		tmp = apply_precision_d(atoi, dim[1]);
	else
		tmp = atoi;
	atoi = ft_strnew((((flags[1] == '+' || flags[1] == ' ') && nb >= 0) || nb < 0) ? 1 : 0);
	if (flags[1] == '+' && nb >= 0)
		atoi[0] = '+';
	else if (flags[1] == ' ' && nb >= 0)
		atoi[0] = ' ';
	else if (nb <= 0)
		atoi[0] = '-';
	ret = ft_strjoin(atoi, tmp);
	ft_strdel(&atoi);
	ft_strdel(&tmp);
	if ((size_t)dim[0] > ft_strlen(ret))
		ret = apply_width_d(ret, dim[0], flags[0]);
	return (ret);
}