<?php /** @file */
/**
 * 
 */

/**
 * @package acl_selectors 
 */

require_once("include/PermissionDescription.php");

function group_select($selname,$selclass,$preselected = false,$size = 4) {

	$a = get_app();

	$o = '';

	$o .= "<select name=\"{$selname}[]\" id=\"$selclass\" class=\"$selclass\" multiple=\"multiple\" size=\"$size\" >\r\n";

	$r = q("SELECT * FROM `groups` WHERE `deleted` = 0 AND `uid` = %d ORDER BY `name` ASC",
		intval(local_channel())
	);


	$arr = array('group' => $r, 'entry' => $o);

	// e.g. 'network_pre_group_deny', 'profile_pre_group_allow'

	call_hooks(App::$module . '_pre_' . $selname, $arr);

	if($r) {
		foreach($r as $rr) {
			if((is_array($preselected)) && in_array($rr['id'], $preselected))
				$selected = " selected=\"selected\" ";
			else
				$selected = '';
			$trimmed = mb_substr($rr['name'],0,12);

			$o .= "<option value=\"{$rr['id']}\" $selected title=\"{$rr['name']}\" >$trimmed</option>\r\n";
		}
	
	}
	$o .= "</select>\r\n";

	call_hooks(App::$module . '_post_' . $selname, $o);


	return $o;
}

/* MicMee 20130114 function contact_selector no longer in use, sql table contact does no longer exist
function contact_selector($selname, $selclass, $preselected = false, $options) {

	$a = get_app();

	$mutual = false;
	$networks = null;
	$single = false;
	$exclude = false;
	$size = 4;

	if(is_array($options)) {
		if(x($options,'size'))
			$size = $options['size'];

		if(x($options,'mutual_friends'))
			$mutual = true;
		if(x($options,'single'))
			$single = true;
		if(x($options,'multiple'))
			$single = false;
		if(x($options,'exclude'))
			$exclude = $options['exclude'];

		if(x($options,'networks')) {
			switch($options['networks']) {
				case 'DFRN_ONLY':
					$networks = array('dfrn');
					break;
				case 'PRIVATE':
					$networks = array('dfrn','face','mail', 'dspr');
					break;
				case 'TWO_WAY':
					$networks = array('dfrn','face','mail','dspr','stat');
					break;					
				default:
					break;
			}
		}
	}
		
	$x = array('options' => $options, 'size' => $size, 'single' => $single, 'mutual' => $mutual, 'exclude' => $exclude, 'networks' => $networks);

	call_hooks('contact_select_options', $x);

	$o = '';

	$sql_extra = '';

	if($x['mutual']) {
		$sql_extra .= sprintf(" AND `rel` = %d ", intval(CONTACT_IS_FRIEND));
	}

	if(intval($x['exclude']))
		$sql_extra .= sprintf(" AND `id` != %d ", intval($x['exclude']));

	if(is_array($x['networks']) && count($x['networks'])) {
		for($y = 0; $y < count($x['networks']) ; $y ++)
			$x['networks'][$y] = "'" . dbesc($x['networks'][$y]) . "'";
		$str_nets = implode(',',$x['networks']);
		$sql_extra .= " AND `network` IN ( $str_nets ) ";
	}
	
	$tabindex = (x($options, 'tabindex') ? "tabindex=\"" . $options["tabindex"] . "\"" : "");

	if($x['single'])
		$o .= "<select name=\"$selname\" id=\"$selclass\" class=\"$selclass\" size=\"" . $x['size'] . "\" $tabindex >\r\n";
	else 
		$o .= "<select name=\"{$selname}[]\" id=\"$selclass\" class=\"$selclass\" multiple=\"multiple\" size=\"" . $x['size'] . "$\" $tabindex >\r\n";

	$r = q("SELECT `id`, `name`, `url`, `network` FROM `contact` 
		WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 AND `pending` = 0 AND `archive` = 0 AND `notify` != ''
		$sql_extra
		ORDER BY `name` ASC ",
		intval(local_channel())
	);


	$arr = array('contact' => $r, 'entry' => $o);

	// e.g. 'network_pre_contact_deny', 'profile_pre_contact_allow'

	call_hooks(App::$module . '_pre_' . $selname, $arr);

	if(count($r)) {
		foreach($r as $rr) {
			if((is_array($preselected)) && in_array($rr['id'], $preselected))
				$selected = " selected=\"selected\" ";
			else
				$selected = '';

			$trimmed = mb_substr($rr['name'],0,20);

			$o .= "<option value=\"{$rr['id']}\" $selected title=\"{$rr['name']}|{$rr['url']}\" >$trimmed</option>\r\n";
		}
	
	}

	$o .= "</select>\r\n";

	call_hooks(App::$module . '_post_' . $selname, $o);

	return $o;
}*/



function contact_select($selname, $selclass, $preselected = false, $size = 4, $privmail = false, $celeb = false, $privatenet = false, $tabindex = null) {

	$a = get_app();

	$o = '';

	// When used for private messages, we limit correspondence to mutual DFRN/Friendica friends and the selector
	// to one recipient. By default our selector allows multiple selects amongst all contacts.

	$sql_extra = '';

	$tabindex = ($tabindex > 0 ? "tabindex=\"$tabindex\"" : "");

	if($privmail)
		$o .= "<select name=\"$selname\" id=\"$selclass\" class=\"$selclass\" size=\"$size\" $tabindex >\r\n";
	else 
		$o .= "<select name=\"{$selname}[]\" id=\"$selclass\" class=\"$selclass\" multiple=\"multiple\" size=\"$size\" $tabindex >\r\n";

	$r = q("SELECT abook_id, xchan_name, xchan_url, xchan_photo_s from abook left join xchan on abook_xchan = xchan_hash
		where abook_self = 0 and abook_channel = %d
		$sql_extra
		ORDER BY xchan_name ASC ",
		intval(local_channel())
	);


	$arr = array('contact' => $r, 'entry' => $o);

	// e.g. 'network_pre_contact_deny', 'profile_pre_contact_allow'

	call_hooks(App::$module . '_pre_' . $selname, $arr);

	if($r) {
		foreach($r as $rr) {
			if((is_array($preselected)) && in_array($rr['id'], $preselected))
				$selected = " selected=\"selected\" ";
			else
				$selected = '';

			$trimmed = mb_substr($rr['xchan_name'],0,20);

			$o .= "<option value=\"{$rr['abook_id']}\" $selected title=\"{$rr['xchan_name']}|{$rr['xchan_url']}\" >$trimmed</option>\r\n";
		}
	
	}

	$o .= "</select>\r\n";

	call_hooks(App::$module . '_post_' . $selname, $o);

	return $o;
}


function fixacl(&$item) {
	$item = str_replace(array('<','>'),array('',''),$item);
}

/**
* Builds a modal dialog for editing permissions, using acl_selector.tpl as the template.
*
* @param array   $default Optional access control list for the initial state of the dialog.
* @param boolean $show_jotnets Whether plugins for federated networks should be included in the permissions dialog
* @param PermissionDescription $emptyACL_description - An optional description for the permission implied by selecting an empty ACL. Preferably an instance of PermissionDescription.
* @param string  $dialog_description Optional message to include at the top of the dialog. E.g. "Warning: Post permissions cannot be changed once sent".
* @param string  $context_help Allows the dialog to present a help icon. E.g. "acl_dialog_post"
* @param boolean $readonly Not implemented yet. When implemented, the dialog will use acl_readonly.tpl instead, so that permissions may be viewed for posts that can no longer have their permissions changed.
*
* @return string html modal dialog built from acl_selector.tpl
*/
function populate_acl($defaults = null,$show_jotnets = true, $emptyACL_description = '', $dialog_description = '', $context_help = '', $readonly = false) {

	$allow_cid = $allow_gid = $deny_cid = $deny_gid = false;
	$showall_origin = '';
	$showall_icon   = 'fa-globe';


	if(! $emptyACL_description) {
		$showall_caption = t('Visible to your default audience');

	} else if (is_a($emptyACL_description, 'PermissionDescription')) {
		$showall_caption = $emptyACL_description->get_permission_description();
		$showall_origin  = $emptyACL_description->get_permission_origin_description();
		$showall_icon    = $emptyACL_description->get_permission_icon();

	} else {
		// For backwards compatibility we still accept a string... for now!
		$showall_caption = $emptyACL_description;
	}


	if(is_array($defaults)) {
		$allow_cid = ((strlen($defaults['allow_cid'])) 
			? explode('><', $defaults['allow_cid']) : array() );
		$allow_gid = ((strlen($defaults['allow_gid']))
			? explode('><', $defaults['allow_gid']) : array() );
		$deny_cid  = ((strlen($defaults['deny_cid']))
			? explode('><', $defaults['deny_cid']) : array() );
		$deny_gid  = ((strlen($defaults['deny_gid']))
			? explode('><', $defaults['deny_gid']) : array() );
		array_walk($allow_cid,'fixacl');
		array_walk($allow_gid,'fixacl');
		array_walk($deny_cid,'fixacl');
		array_walk($deny_gid,'fixacl');
	}
	
	$jotnets = '';
	if($show_jotnets) {
		call_hooks('jot_networks', $jotnets);
	}

	$tpl = get_markup_template("acl_selector.tpl");
	$o = replace_macros($tpl, array(
		'$showall'         => $showall_caption,
		'$showallOrigin'   => $showall_origin,
		'$showallIcon'     => $showall_icon,
		'$showlimited'     => t("Limit access:"),
		'$showlimitedDesc' => t('Select "Show" to allow viewing. "Don\'t show" lets you override and limit the scope of "Show".'),
		'$show'	           => t("Show"),
		'$hide'	           => t("Don't show"),
		'$search'          => t("Search"),
		'$allowcid'        => json_encode($allow_cid),
		'$allowgid'        => json_encode($allow_gid),
		'$denycid'         => json_encode($deny_cid),
		'$denygid'         => json_encode($deny_gid),
		'$jnetModalTitle'  => t('Other networks and post services'),
		'$jotnets'         => $jotnets,
		'$aclModalTitle'   => t('Permissions'),
		'$aclModalDesc'    => $dialog_description,
		'$aclModalDismiss' => t('Close'),
		'$helpUrl'         => (($context_help == '') ? '' : (z_root() . '/help/' . $context_help))
	));

	return $o;

}

/**
* Returns a string that's suitable for passing as the $dialog_description argument to a
* populate_acl() call for wall posts or network posts.
*
* This string is needed in 3 different files, and our .po translation system currently
* cannot be used as a string table (because the value is always the key in english) so
* I've centralized the value here (making this function name the "key") until we have a
* better way.
*
* @return string Description to present to user in modal permissions dialog
*/
function get_post_aclDialogDescription() {

	// I'm trying to make two points in this description text - warn about finality of wall
	// post permissions, and try to clear up confusion that these permissions set who is
	// *shown* the post, istead of who is able to see the post, i.e. make it clear that clicking
	// the "Show"  button on a group does not post it to the feed of people in that group, it
	// mearly allows those people to view the post if they are viewing/following this channel.
	$description = t('Post permissions %s cannot be changed %s after a post is shared.</br />These permissions set who is allowed to view the post.');

	// Lets keep the emphasis styling seperate from the translation. It may change.
	$emphasisOpen  = '<b><a href="' . z_root() . '/help/acl_dialog_post" target="hubzilla-help">';
	$emphasisClose = '</a></b>';

	return sprintf($description, $emphasisOpen, $emphasisClose);
}

