/*
** ast_cmd.c for 42sh
**
** Made by Seblu
** Login   <seblu@epita.fr>
**
** Started on  Fri Aug 18 22:13:51 2006 Seblu
** Last update Tue Oct 17 17:16:40 2006 seblu
*/

#include "ast.h"

s_ast_node	*ast_red_create(void)
{
  s_ast_node	*node;

  secmalloc(node, sizeof (s_ast_node));
  node->type = T_RED;
  node->body.child_red.size = 0;
  node->body.child_red.type = NULL;
  node->body.child_red.fd = NULL;
  node->body.child_red.word = NULL;
  node->body.child_red.mhs = NULL;
  return node;
}

void		ast_red_add(s_ast_node	*node,
			    e_red_type	type,
			    int		fd,
			    char	*word)
{
  if (node->type != T_RED)
    return;
  s_red_node *reds = (s_red_node *) &node->body.child_red;
  ++reds->size;
  secrealloc(reds->type, reds->type, sizeof (e_red_type) * reds->size);
  reds->type[reds->size - 1] = type;
  secrealloc(reds->fd, reds->fd, sizeof (int) * reds->size);
  reds->fd[reds->size - 1] = fd;
  secrealloc(reds->word, reds->word, sizeof (char *) * reds->size);
  reds->word[reds->size - 1] = word;
}

void		ast_red_print(s_ast_node *node, FILE *fs, unsigned *node_id)
{
  unsigned	cur_id = *node_id;

  if (node->type != T_RED)
    return;
  s_red_node *reds = (s_red_node *) &node->body.child_red;
  if (reds->size == 0)
    return;
  fprintf(fs, "%u [label = \"Redirection\\n", *node_id);
  ++*node_id;
  for (register size_t i = 0; i < reds->size; ++i)
    fprintf(fs, "id=%d, fd=%d, type=%d, word=%s\\n",
	    i, reds->fd[i], reds->type[i], reds->word[i]);
  fprintf(fs, "\"];\n");
  fprintf(fs, "%u -> %u\n", cur_id, *node_id);
  if (reds->mhs)
    ast_print_node(reds->mhs, fs, node_id);
}

void		ast_red_destruct_node(s_ast_node *node)
{
  s_red_node	*reds;

  if (node->type != T_RED)
    return;
  reds = (s_red_node *) &node->body.child_red;
  if (reds->size) {
    free(reds->type);
    free(reds->fd);
    for (register size_t i = 0; i < reds->size; ++i)
      free(reds->word[i]);
    free(reds->word);
  }
  free(node);
}

void		ast_red_destruct(s_ast_node *node)
{
  if (node->type != T_RED)
    return;
  ast_destruct(node->body.child_red.mhs);
  ast_red_destruct_node(node);
}