*/
function libertree_install() {
    register_hook('post_local',           'addon/libertree/libertree.php', 'libertree_post_local');
    register_hook('notifier_normal',      'addon/libertree/libertree.php', 'libertree_send');
    register_hook('jot_networks',         'addon/libertree/libertree.php', 'libertree_jot_nets');
    register_hook('connector_settings',      'addon/libertree/libertree.php', 'libertree_settings');
    register_hook('connector_settings_post', 'addon/libertree/libertree.php', 'libertree_settings_post');
}
function libertree_uninstall() {
    unregister_hook('post_local',       'addon/libertree/libertree.php', 'libertree_post_local');
    unregister_hook('notifier_normal',  'addon/libertree/libertree.php', 'libertree_send');
    unregister_hook('jot_networks',     'addon/libertree/libertree.php', 'libertree_jot_nets');
    unregister_hook('connector_settings',      'addon/libertree/libertree.php', 'libertree_settings');
    unregister_hook('connector_settings_post', 'addon/libertree/libertree.php', 'libertree_settings_post');
}
function libertree_jot_nets(&$a,&$b) {
    if(! local_user())
        return;
    $ltree_post = get_pconfig(local_user(),'libertree','post');
    if(intval($ltree_post) == 1) {
        $ltree_defpost = get_pconfig(local_user(),'libertree','post_by_default');
        $selected = ((intval($ltree_defpost) == 1) ? ' checked="checked" ' : '');
        $b .= '
 '
            . t('Post to libertree') . '
';
    }
}
function libertree_settings(&$a,&$s) {
    if(! local_user())
        return;
    /* Add our stylesheet to the page so we can make our settings look nice */
    $a->page['htmlhead'] .= '' . "\r\n";
    /* Get the current state of our config variables */
    $enabled = get_pconfig(local_user(),'libertree','post');
    $checked = (($enabled) ? ' checked="checked" ' : '');
    $def_enabled = get_pconfig(local_user(),'libertree','post_by_default');
    $def_checked = (($def_enabled) ? ' checked="checked" ' : '');
    $ltree_api_token = get_pconfig(local_user(), 'libertree', 'libertree_api_token');
    $ltree_url = get_pconfig(local_user(), 'libertree', 'libertree_url');
    /* Add some HTML to the existing form */
    $s .= '';
    $s .= '' . t('libertree Export') . '
';
    $s .= '';
    $s .= '';
    $s .= '
';
    $s .= '' . t('libertree Export') . '
';
    $s .= '';
    $s .= '
';
    $s .= '';
    $s .= '';
    $s .= '
';
    $s .= '
';
    $s .= '';
    $s .= '';
    $s .= '
';
    $s .= '
';
    $s .= '';
    $s .= '';
    $s .= '
';
    $s .= '
';
    $s .= '';
    $s .= '';
    $s .= '
';
    /* provide a submit button */
    $s .= '
 ';
}
function libertree_settings_post(&$a,&$b) {
	if(x($_POST,'libertree-submit')) {
		set_pconfig(local_user(),'libertree','post',intval($_POST['libertree']));
		set_pconfig(local_user(),'libertree','post_by_default',intval($_POST['libertree_bydefault']));
		set_pconfig(local_user(),'libertree','libertree_api_token',trim($_POST['libertree_api_token']));
		set_pconfig(local_user(),'libertree','libertree_url',trim($_POST['libertree_url']));
	}
}
function libertree_post_local(&$a,&$b) {
	// This can probably be changed to allow editing by pointing to a different API endpoint
	if($b['edit'])
		return;
	if((! local_user()) || (local_user() != $b['uid']))
		return;
	if($b['private'] || $b['parent'])
		return;
	$ltree_post   = intval(get_pconfig(local_user(),'libertree','post'));
	$ltree_enable = (($ltree_post && x($_REQUEST,'libertree_enable')) ? intval($_REQUEST['libertree_enable']) : 0);
	if($_REQUEST['api_source'] && intval(get_pconfig(local_user(),'libertree','post_by_default')))
		$ltree_enable = 1;
    if(! $ltree_enable)
       return;
    if(strlen($b['postopts']))
       $b['postopts'] .= ',';
     $b['postopts'] .= 'libertree';
}
function libertree_send(&$a,&$b) {
	logger('libertree_send: invoked');
    if($b['deleted'] || $b['private'] || ($b['created'] !== $b['edited']))
        return;
    if(! strstr($b['postopts'],'libertree'))
        return;
    if($b['parent'] != $b['id'])
        return;
	$ltree_api_token = get_pconfig($b['uid'],'libertree','libertree_api_token');
	$ltree_url = get_pconfig($b['uid'],'libertree','libertree_url');
	$ltree_blog = "$ltree_url/api/v1/posts/create/?token=$ltree_api_token";
	if (isset($a->config['sitename']) AND ($a->config['sitename'] != ""))
		$ltree_source = $a->config['sitename'];
	else
		$ltree_source = "Friendica";
	if($ltree_url && $ltree_api_token && $ltree_blog && $ltree_source) {
		require_once('include/bb2diaspora.php');
		$tag_arr = array();
		$tags = '';
		$x = preg_match_all('/\#\[(.*?)\](.*?)\[/',$b['tag'],$matches,PREG_SET_ORDER);
		if($x) {
			foreach($matches as $mtch) {
				$tag_arr[] = $mtch[2];
			}
		}
		if(count($tag_arr))
			$tags = implode(',',$tag_arr);
		$title = $b['title'];
		$body = $b['body'];
		// Insert a newline before and after a quote
		$body = str_ireplace("[quote", "\n\n[quote", $body);
		$body = str_ireplace("[/quote]", "[/quote]\n\n", $body);
		// Removal of tags and mentions
		// #-tags
		$body = preg_replace('/#\[url\=(\w+.*?)\](\w+.*?)\[\/url\]/i', '#$2', $body);
 		// @-mentions
		$body = preg_replace('/@\[url\=(\w+.*?)\](\w+.*?)\[\/url\]/i', '@$2', $body);
		// remove multiple newlines
		do {
			$oldbody = $body;
                        $body = str_replace("\n\n\n", "\n\n", $body);
                } while ($oldbody != $body);
		// convert to markdown
		$body = bb2diaspora($body, false, false);
		// Adding the title
		if(strlen($title))
			$body = "## ".html_entity_decode($title)."\n\n".$body;
		$params = array(
			'text' => $body,
			'source' => $ltree_source
		//	'token' => $ltree_api_token
		);
		$result = post_url($ltree_blog,$params);
		logger('libertree: ' . $result);
	}
}