<?php
if (!defined('_ECRIRE_INC_VERSION')){
	return;
}


/**
 * creation de la blockchaine
 *
 * @param string $objet
 * @param int $id_objet
 * @param string | array $chaine : ensemble des valeurs utilisées pour creer la chaine
 * @return array [id_blocklog, chaine, blockchaine]
 */
function inc_blocklog_dist($objet, $id_objet, $chaine) {
	if (!$objet or !$id_objet or !$chaine) {
		return false;
	}

	if (! defined("_BACKLOG_ALGO")) {
		define("_BACKLOG_ALGO", 'sha256');
	}
	if (is_array($chaine)) {
		$chaine = implode('|', $chaine);
	}

	$date = date_create();
	$chaine .= "|". date_timestamp_get($date);

	$chaine = hash(_BACKLOG_ALGO, $chaine);
	$blockchaine = sql_getfetsel('blockchaine', 'spip_blocklogs',1,'', 'id_blocklog DESC', '1');

	include_spip('action/editer_objet');
	$set = array (
		'blockchaine' => $blockchaine,
		'chaine'      => $chaine,
	);
	$id_blocklog = objet_inserer($objet);
	objet_modifier("blocklog", $id_blocklog, $set);
	$set['id_blocklog'] = $id_blocklog;

	include_spip('action/editer_liens');
	$objets_source = array("blocklog"=>$id_blocklog);
	$objets_lies = array($objet => $id_objet);
	objet_associer($objets_source, $objets_lies);

	return  $set;
}