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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   c_utils.c                                          :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: rbousset <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2020/02/14 17:19:27 by rbousset          #+#    #+#             */
/*   Updated: 2020/02/14 17:19:29 by rbousset         ###   ########lyon.fr   */
/*                                                                            */
/* ************************************************************************** */

#include <libft.h>
#include <stdlib.h>
#include <term.h>
#include <unistd.h>

#include "c_init.h"
#include "c_input.h"
#include "m_prompt.h"
#include "m_loop.h"
#include "s_struct.h"

/*
** TODO:
**  delchar MOVE
**  plen opti
**  NORME
**  FLECHES UP DOWN
**  C-c globul pid
*/

int16_t
	c_new_line(char *line,
			t_msh *msh,
			t_caps *tcaps)
{
	write(1, "\n", 1);
	tputs(tgetstr("cr", NULL), 1, ft_putchar);
	c_set_term_raw(0);
	if (line != NULL)
	{
		m_parse_and_run_line(line, msh);
		line = NULL;
		free(line);
	}
	tcaps->cpos = 0;
	tputs(tgetstr("cr", NULL), 1, ft_putchar);
	c_set_term_raw(1);
	m_prompt_psx(1, msh);
	return (1);
}

char
	*c_insert_char(char *str,
				char c,
				t_caps *tcaps)
{
	int32_t	i;
	size_t	j;
	size_t	len;
	char	*dst;

	i = -1;
	j = 0;
	len = (ft_strlen(str) + 2);
	if (!(dst = (char*)malloc((len) * sizeof(char))))
		return (NULL);
	while (++i < (int32_t)len)
	{
		if (i == (int32_t)tcaps->cpos)
			dst[i] = c;
		else
		{
			dst[i] = str[j];
			j++;
		}
	}
	ft_memdel((void**)&str);
	return (dst);
}

char
	*c_delchar(char *str,
			uint16_t cpos)
{
	char		*dst;
	uint16_t	i;
	uint16_t	j;

	j = 0;
	i = 0;
	if (!(dst = malloc((ft_strlen(str)) * sizeof(char))))
		return (NULL);
	cpos -= 1;
	while (j < (ft_strlen(str) - 1))
	{
		if (i == cpos)
			i++;
		dst[j] = str[i];
		i++;
		j++;
	}
	ft_memdel((void**)&str);
	dst[j] = '\0';
	return (dst);
}

static int16_t
	c_redraw_next(size_t plen,
					uint32_t len,
					t_caps *tcaps)
{
	uint32_t	i;
	uint32_t	j;

	i = (tcaps->nlines == tcaps->lpos) ? 0 : tcaps->ws.ws_col * (tcaps->lpos - 1);
	j = tcaps->nlines;
	if (tcaps->nlines != tcaps->lpos)
	{
		while (--j > tcaps->lpos)
			tputs(tgetstr("up", NULL), 1, ft_putchar);
		tputs(tgetstr("up", NULL), 1, ft_putchar);
		tputs(tgetstr("cr", NULL), 1, ft_putchar); /*  cr, cpos mauvaise col, bonne ligne */
		while (i <= (tcaps->cpos + plen))
		{
			tputs(tgetstr("nd", NULL), 1, ft_putchar); /*  cr, cpos mauvaise col, bonne ligne */
			i++;
		}
	}
	else
		while (--len > tcaps->cpos)
			tputs(tgetstr("le", NULL), 1, ft_putchar);
	return (len);
}

int16_t
	c_redraw_line(char *line,
				t_caps *tcaps,
				t_msh *msh)
{
	uint32_t	i;
	uint32_t	j;
	uint32_t	len;

	len = ft_strlen(line);
	tcaps->nlines = c_get_line_num(line, tcaps->cpos, ft_strlen(msh->ps[0]), tcaps);
	j = tcaps->lpos;
	i = 0;
	tputs(tgetstr("cr", NULL), 1, ft_putchar);
	if (((tcaps->cpos + ft_strlen(msh->ps[0])) % tcaps->ws.ws_col) == 0)
	{
		tputs(tgetstr("sf", NULL), 1, ft_putchar);
		return (1);
	}
	while (--j > 0)
	{
		tputs(tgetstr("sf", NULL), 1, ft_putchar);
		tputs(tgetstr("up", NULL), 1, ft_putchar);
		tputs(tgetstr("up", NULL), 1, ft_putchar);
	}
	while (i++ < ft_strlen(msh->ps[0]))
		tputs(tgetstr("nd", NULL), 1, ft_putchar);
	ft_printf("%s", line);
	if (tcaps->cpos != len)
		return (c_redraw_next(ft_strlen(msh->ps[0]), len, tcaps));
	return (len);
}