<?php

/* @file connedit.php
 * @brief In this file the connection-editor form is generated and evaluated.
 *
 *
 */

require_once('include/Contact.php');
require_once('include/socgraph.php');
require_once('include/contact_selectors.php');
require_once('include/group.php');
require_once('include/contact_widgets.php');
require_once('include/zot.php');
require_once('include/widgets.php');

/* @brief Initialize the connection-editor
 *
 *
 */

function connedit_init(&$a) {

	if(! local_user())
		return;

	if((argc() >= 2) && intval(argv(1))) {
		$r = q("SELECT abook.*, xchan.* 
			FROM abook left join xchan on abook_xchan = xchan_hash
			WHERE abook_channel = %d and abook_id = %d LIMIT 1",
			intval(local_user()),
			intval(argv(1))
		);
		if($r) {
			$a->poi = $r[0];
		}
	}

	$channel = $a->get_channel();
	if($channel)
		head_set_icon($channel['xchan_photo_s']);

}

/* @brief Evaluate posted values and set changes
 *
 */

function connedit_post(&$a) {

	if(! local_user())
		return;

	$contact_id = intval(argv(1));
	if(! $contact_id)
		return;

	$orig_record = q("SELECT * FROM abook WHERE abook_id = %d AND abook_channel = %d LIMIT 1",
		intval($contact_id),
		intval(local_user())
	);

	if(! $orig_record) {
		notice( t('Could not access contact record.') . EOL);
		goaway($a->get_baseurl(true) . '/connections');
		return; // NOTREACHED
	}

	call_hooks('contact_edit_post', $_POST);

	if($orig_record[0]['abook_flags'] & ABOOK_FLAG_SELF) {
		$autoperms = intval($_POST['autoperms']);
	}
	else {
		$autoperms = null;
	}


	$profile_id = $_POST['profile_assign'];
	if($profile_id) {
		$r = q("SELECT profile_guid FROM profile WHERE profile_guid = '%s' AND `uid` = %d LIMIT 1",
			dbesc($profile_id),
			intval(local_user())
		);
		if(! count($r)) {
			notice( t('Could not locate selected profile.') . EOL);
			return;
		}
	}

	$hidden = intval($_POST['hidden']);

	$priority = intval($_POST['poll']);
	if($priority > 5 || $priority < 0)
		$priority = 0;

	$closeness = intval($_POST['closeness']);
	if($closeness < 0)
		$closeness = 99;

	$abook_my_perms = 0;

	foreach($_POST as $k => $v) {
		if(strpos($k,'perms_') === 0) {
			$abook_my_perms += $v;
		}
	}

	$abook_flags = $orig_record[0]['abook_flags'];
	$new_friend = false;


	if(($_REQUEST['pending']) && ($abook_flags & ABOOK_FLAG_PENDING)) {
		$abook_flags = ( $abook_flags ^ ABOOK_FLAG_PENDING );
		$new_friend = true;
	}

	$r = q("UPDATE abook SET abook_profile = '%s', abook_my_perms = %d , abook_closeness = %d, abook_flags = %d
		where abook_id = %d AND abook_channel = %d",
		dbesc($profile_id),
		intval($abook_my_perms),
		intval($closeness),
		intval($abook_flags),
		intval($contact_id),
		intval(local_user())
	);

	if($orig_record[0]['abook_profile'] != $profile_id) { 
		//Update profile photo permissions

		logger('A new profile was assigned - updating profile photos');
		require_once('mod/profile_photo.php');
		profile_photo_set_profile_perms($profile_id);

	}


	if($r)
		info( t('Connection updated.') . EOL);
	else
		notice( t('Failed to update connection record.') . EOL);

	if($a->poi && $a->poi['abook_my_perms'] != $abook_my_perms 
		&& (! ($a->poi['abook_flags'] & ABOOK_FLAG_SELF))) {
		proc_run('php', 'include/notifier.php', 'permission_update', $contact_id);
	}

	if($new_friend) {
		$channel = $a->get_channel();
		$default_group = $channel['channel_default_group'];
		if($default_group) {
			require_once('include/group.php');
			$g = group_rec_byhash(local_user(),$default_group);
			if($g)
				group_add_member(local_user(),'',$a->poi['abook_xchan'],$g['id']);
		}

		// Check if settings permit ("post new friend activity" is allowed, and 
		// friends in general or this friend in particular aren't hidden) 
		// and send out a new friend activity

		$pr = q("select * from profile where uid = %d and is_default = 1 and hide_friends = 0",
			intval($channel['channel_id'])
		);
		if(($pr) && (! ($abook_flags & ABOOK_FLAG_HIDDEN)) 
			&& (intval(get_pconfig($channel['channel_id'],'system','post_newfriend')))) {
			$xarr = array();
			$xarr['verb'] = ACTIVITY_FRIEND;
			$xarr['item_flags'] = ITEM_WALL|ITEM_ORIGIN|ITEM_THREAD_TOP;
			$xarr['owner_xchan'] = $xarr['author_xchan'] = $channel['channel_hash'];
			$xarr['allow_cid'] = $channel['channel_allow_cid'];
			$xarr['allow_gid'] = $channel['channel_allow_gid'];
			$xarr['deny_cid'] = $channel['channel_deny_cid'];
			$xarr['deny_gid'] = $channel['channel_deny_gid'];
			$xarr['item_private'] = (($xarr['allow_cid']||$xarr['allow_gid']||$xarr['deny_cid']||$xarr['deny_gid']) ? 1 : 0);
			$obj = array(
				'type' => ACTIVITY_OBJ_PERSON,
				'title' => $a->poi['xchan_name'],
				'id' => $a->poi['xchan_hash'],
				'link' => array(
					array('rel' => 'alternate', 'type' => 'text/html', 'href' => $a->poi['xchan_url']),
					array('rel' => 'photo', 'type' => $a->poi['xchan_photo_mimetype'], 'href' => $a->poi['xchan_photo_l'])
       			),
   			);
			$xarr['object'] = json_encode($obj);
			$xarr['obj_type'] = ACTIVITY_OBJ_PERSON;

			$xarr['body'] = '[zrl=' . $channel['xchan_url'] . ']' . $channel['xchan_name'] . '[/zrl]' . ' ' . t('is now connected to') . ' ' . '[zrl=' . $a->poi['xchan_url'] . ']' . $a->poi['xchan_name'] . '[/zrl]';

			$xarr['body'] .= "\n\n\n" . '[zrl=' . $a->poi['xchan_url'] . '][zmg=80x80]' . $a->poi['xchan_photo_m'] . '[/zmg][/zrl]';

			post_activity_item($xarr);

		}


		// pull in a bit of content if there is any to pull in
		proc_run('php','include/onepoll.php',$contact_id);

	}

	// Refresh the structure in memory with the new data

	$r = q("SELECT abook.*, xchan.* 
		FROM abook left join xchan on abook_xchan = xchan_hash
		WHERE abook_channel = %d and abook_id = %d LIMIT 1",
		intval(local_user()),
		intval($contact_id)
	);
	if($r) {
		$a->poi = $r[0];
	}

	if($new_friend) {
		$arr = array('channel_id' => local_user(), 'abook' => $a->poi);
		call_hooks('accept_follow', $arr);
	}

	if(! is_null($autoperms)) 
		set_pconfig(local_user(),'system','autoperms',(($autoperms) ? $abook_my_perms : 0));

	connedit_clone($a);

	return;

}

/* @brief Clone connection
 *
 *
 */

function connedit_clone(&$a) {

		if(! $a->poi)
			return;
		$clone = $a->poi;

		unset($clone['abook_id']);
		unset($clone['abook_account']);
		unset($clone['abook_channel']);

		build_sync_packet(0 /* use the current local_user */, array('abook' => array($clone)));
}

/* @brief Generate content of connection edit page
 *
 *
 */

function connedit_content(&$a) {

	$sort_type = 0;
	$o = '';

	// this triggers some javascript to set Full Sharing by default after 
	// completing a "follow" - which can be changed to something else before 
	// form submission, but this gives us something useable

	if($_GET['follow'] == 1) {
		$o .= '<script>var after_following = 1;</script>';
	}
	if(! local_user()) {
		notice( t('Permission denied.') . EOL);
		return login();
	}

	$my_perms = 0;
	$role = get_pconfig(local_user(),'system','permissions_role');
	if($role) {
		$x = get_role_perms($role);
		if($x['perms_accept'])
			$my_perms = $x['perms_accept'];
		else
			$my_perms = get_channel_default_perms(local_user());
	}
	if($my_perms) {
		$o .= "<script>function connectDefaultShare() {
		\$('.abook-edit-me').each(function() {
			if(! $(this).is(':disabled'))
				$(this).removeAttr('checked');
		});\n\n";
		$perms = get_perms();
		foreach($perms as $p => $v) {
			if($my_perms & $v[1]) {
				$o .= "\$('#me_id_perms_" . $p . "').attr('checked','checked'); \n";
			}
		}
		$o .= "abook_perms_msg(); }\n</script>\n";
	}

	if(argc() == 3) {

		$contact_id = intval(argv(1));
		if(! $contact_id)
			return;

		$cmd = argv(2);

		$orig_record = q("SELECT abook.*, xchan.* FROM abook left join xchan on abook_xchan = xchan_hash
			WHERE abook_id = %d AND abook_channel = %d AND NOT ( abook_flags & %d )>0 LIMIT 1",
			intval($contact_id),
			intval(local_user()),
			intval(ABOOK_FLAG_SELF)
		);

		if(! count($orig_record)) {
			notice( t('Could not access address book record.') . EOL);
			goaway($a->get_baseurl(true) . '/connections');
		}
		
		if($cmd === 'update') {

			// pull feed and consume it, which should subscribe to the hub.
			proc_run('php',"include/poller.php","$contact_id");
			goaway($a->get_baseurl(true) . '/connedit/' . $contact_id);

		}

		if($cmd === 'refresh') {
			if(! zot_refresh($orig_record[0],get_app()->get_channel())) 
				notice( t('Refresh failed - channel is currently unavailable.') );
			goaway($a->get_baseurl(true) . '/connedit/' . $contact_id);
		}

		if($cmd === 'block') {
			if(abook_toggle_flag($orig_record[0],ABOOK_FLAG_BLOCKED)) {
				info((($orig_record[0]['abook_flags'] & ABOOK_FLAG_BLOCKED) 
					? t('Channel has been unblocked') 
					: t('Channel has been blocked')) . EOL );
				connedit_clone($a);
			}
			else
				notice(t('Unable to set address book parameters.') . EOL);
			goaway($a->get_baseurl(true) . '/connedit/' . $contact_id);
		}

		if($cmd === 'ignore') {
			if(abook_toggle_flag($orig_record[0],ABOOK_FLAG_IGNORED)) {
				info((($orig_record[0]['abook_flags'] & ABOOK_FLAG_IGNORED) 
					? t('Channel has been unignored') 
					: t('Channel has been ignored')) . EOL );
				connedit_clone($a);
			}
			else
				notice(t('Unable to set address book parameters.') . EOL);
			goaway($a->get_baseurl(true) . '/connedit/' . $contact_id);
		}

		if($cmd === 'archive') {
			if(abook_toggle_flag($orig_record[0],ABOOK_FLAG_ARCHIVED)) {
				info((($orig_record[0]['abook_flags'] & ABOOK_FLAG_ARCHIVED) 
					? t('Channel has been unarchived') 
					: t('Channel has been archived')) . EOL );
				connedit_clone($a);
			}
			else
				notice(t('Unable to set address book parameters.') . EOL);
			goaway($a->get_baseurl(true) . '/connedit/' . $contact_id);
		}

		if($cmd === 'hide') {
			if(abook_toggle_flag($orig_record[0],ABOOK_FLAG_HIDDEN)) {
				info((($orig_record[0]['abook_flags'] & ABOOK_FLAG_HIDDEN) 
					? t('Channel has been unhidden') 
					: t('Channel has been hidden')) . EOL );
				connedit_clone($a);
			}
			else
				notice(t('Unable to set address book parameters.') . EOL);
			goaway($a->get_baseurl(true) . '/connedit/' . $contact_id);
		}

		// We'll prevent somebody from unapproving an already approved contact.
		// Though maybe somebody will want this eventually (??)

		if($cmd === 'approve') {
			if($orig_record[0]['abook_flags'] & ABOOK_FLAG_PENDING) {
				if(abook_toggle_flag($orig_record[0],ABOOK_FLAG_PENDING)) {
					info((($orig_record[0]['abook_flags'] & ABOOK_FLAG_PENDING) 
						? t('Channel has been approved') 
						: t('Channel has been unapproved')) . EOL );
					connedit_clone($a);
				}
				else
					notice(t('Unable to set address book parameters.') . EOL);
			}
			goaway($a->get_baseurl(true) . '/connedit/' . $contact_id);
		}


		if($cmd === 'drop') {

			require_once('include/Contact.php');

// FIXME
// We need to send either a purge or a refresh packet to the other side (the channel being unfriended). 
// The issue is that the abook DB record _may_ get destroyed when we call contact_remove. As the notifier runs
// in the background there could be a race condition preventing this packet from being sent in all cases.
// PLACEHOLDER

			contact_remove(local_user(), $orig_record[0]['abook_id']);
			build_sync_packet(0 /* use the current local_user */, 
				array('abook' => array(array(
					'abook_xchan' => $orig_record[0]['abook_xchan'],
					'entry_deleted' => true))
				)
			);

			info( t('Connection has been removed.') . EOL );
			if(x($_SESSION,'return_url'))
				goaway($a->get_baseurl(true) . '/' . $_SESSION['return_url']);
			goaway($a->get_baseurl(true) . '/contacts');

		}
	}

	if($a->poi) {

		$contact_id = $a->poi['abook_id'];
		$contact = $a->poi;


		$tabs = array(

			array(
				'label' => t('View Profile'),
				'url'   => chanlink_cid($contact['abook_id']), 
				'sel'   => '',
				'title' => sprintf( t('View %s\'s profile'), $contact['xchan_name']),
			),

			array(
				'label' => t('Refresh Permissions'),
				'url'   => $a->get_baseurl(true) . '/connedit/' . $contact['abook_id'] . '/refresh', 
				'sel'   => '',
				'title' => t('Fetch updated permissions'),
			),

			array(
				'label' => t('Recent Activity'),
				'url'   => $a->get_baseurl(true) . '/network/?f=&cid=' . $contact['abook_id'], 
				'sel'   => '',
				'title' => t('View recent posts and comments'),
			)
		);

		$buttons = array(
			array(
				'label' => (($contact['abook_flags'] & ABOOK_FLAG_BLOCKED) ? t('Unblock') : t('Block')),
				'url'   => $a->get_baseurl(true) . '/connedit/' . $contact['abook_id'] . '/block', 
				'sel'   => (($contact['abook_flags'] & ABOOK_FLAG_BLOCKED) ? 'active' : ''),
				'title' => t('Block (or Unblock) all communications with this connection'),
			),

			array(
				'label' => (($contact['abook_flags'] & ABOOK_FLAG_IGNORED) ? t('Unignore') : t('Ignore')),
				'url'   => $a->get_baseurl(true) . '/connedit/' . $contact['abook_id'] . '/ignore', 
				'sel'   => (($contact['abook_flags'] & ABOOK_FLAG_IGNORED) ? 'active' : ''),
				'title' => t('Ignore (or Unignore) all inbound communications from this connection'),
			),
			array(
				'label' => (($contact['abook_flags'] & ABOOK_FLAG_ARCHIVED) ? t('Unarchive') : t('Archive')),
				'url'   => $a->get_baseurl(true) . '/connedit/' . $contact['abook_id'] . '/archive', 
				'sel'   => (($contact['abook_flags'] & ABOOK_FLAG_ARCHIVED) ? 'active' : ''),
				'title' => t('Archive (or Unarchive) this connection - mark channel dead but keep content'),
			),
			array(
				'label' => (($contact['abook_flags'] & ABOOK_FLAG_HIDDEN) ? t('Unhide') : t('Hide')),
				'url'   => $a->get_baseurl(true) . '/connedit/' . $contact['abook_id'] . '/hide', 
				'sel'   => (($contact['abook_flags'] & ABOOK_FLAG_HIDDEN) ? 'active' : ''),
				'title' => t('Hide or Unhide this connection from your other connections'),
			),

			array(
				'label' => t('Delete'),
				'url'   => $a->get_baseurl(true) . '/connedit/' . $contact['abook_id'] . '/drop', 
				'sel'   => '',
				'title' => t('Delete this connection'),
			),

		);

		$self = false;

		if(! ($contact['abook_flags'] & ABOOK_FLAG_SELF)) {
			$tab_tpl = get_markup_template('common_tabs.tpl');
			$t = replace_macros($tab_tpl, array('$tabs'=>$tabs));
		}
		else
			$self = true;

		$a->page['htmlhead'] .= replace_macros(get_markup_template('contact_head.tpl'), array(
			'$baseurl' => $a->get_baseurl(true),
			'$editselect' => $editselect
		));

		require_once('include/contact_selectors.php');

		$tpl = get_markup_template("abook_edit.tpl");

		if(feature_enabled(local_user(),'affinity')) {

			$slider_tpl = get_markup_template('contact_slider.tpl');
			$slide = replace_macros($slider_tpl,array(
				'$me' => t('Me'),
				'$min' => 1,
				'$val' => (($contact['abook_closeness']) ? $contact['abook_closeness'] : 99),
				'$intimate' => t('Best Friends'),
				'$friends' => t('Friends'),
				'$oldfriends' => t('Former Friends'),
				'$acquaintances' => t('Acquaintances'),
				'$world' => t('Unknown')
			));
		}

		$perms = array();
		$channel = $a->get_channel();

		$global_perms = get_perms();
		$existing = get_all_perms(local_user(),$contact['abook_xchan']); 

		$unapproved = array('pending', t('Approve this connection'), '', t('Accept connection to allow communication'));
		
		foreach($global_perms as $k => $v) {
			$thisperm = (($contact['abook_my_perms'] & $v[1]) ? "1" : '');

			// For auto permissions (when $self is true) we don't want to look at existing
			// permissions because they are enabled for the channel owner

			if((! $self) && ($existing[$k]))
				$thisperm = "1";

			$perms[] = array('perms_' . $k, $v[3], (($contact['abook_their_perms'] & $v[1]) ? "1" : ""),$thisperm, $v[1], (($channel[$v[0]] == PERMS_SPECIFIC || $self) ? '' : '1'), $v[4]);
		}

		$o .= replace_macros($tpl,array(

			'$header'         => (($self) ? t('Connection Default Permissions') : sprintf( t('Connections: settings for %s'),$contact['xchan_name'])),
			'$autoperms'      => array('autoperms',t('Apply these permissions automatically'), ((get_pconfig(local_user(),'system','autoperms')) ? 1 : 0), ''),
			'$addr'           => $contact['xchan_addr'],
			'$notself'        => (($self) ? '' : '1'),
			'$self'           => (($self) ? '1' : ''),
			'$autolbl'        => t('Apply the permissions indicated on this page to all new connections.'),
			'$buttons'        => (($self) ? '' : $buttons),
			'$viewprof'       => t('View Profile'),
			'$lbl_slider'     => t('Slide to adjust your degree of friendship'),
			'$slide'          => $slide,
			'$tabs'           => $t,
			'$tab_str'        => $tab_str,
			'$perms_step1'    => t('Default permissions for your channel type have (just) been applied. They have not yet been submitted. Please review the permissions on this page and make any desired changes at this time. This new connection may <em>not</em> be able to communicate with you until you submit this page, which will install and apply the selected permissions.'),
			'$is_pending'     => (($contact['abook_flags'] & ABOOK_FLAG_PENDING) ? 1 : ''),
			'$unapproved'     => $unapproved,
			'$inherited'      => t('inherited'),
			'$approve'        => t('Approve this connection'),
			'$noperms'        => (($contact['abook_my_perms']) ? false : true),
			'$no_perms'        => (((! $self) && (! $contact['abook_my_perms'])) ? t('Connection has no individual permissions!') : ''),
			'$noperm_desc'    => (((! $self) && (! $contact['abook_my_perms'])) ? t('This may be appropriate based on your <a href="settings">privacy settings</a>, though you may wish to review the "Advanced Permissions".') : ''),
			'$submit'         => t('Submit'),
			'$lbl_vis1'       => t('Profile Visibility'),
			'$lbl_vis2'       => sprintf( t('Please choose the profile you would like to display to %s when viewing your profile securely.'), $contact['xchan_name']),
			'$lbl_info1'      => t('Contact Information / Notes'),
			'$infedit'        => t('Edit contact notes'),
			'$close'          => $contact['abook_closeness'],
			'$them'           => t('Their Settings'),
			'$me'             => t('My Settings'),
			'$perms'          => $perms,
			'$perms_new'      => t('Default permissions for this channel type have (just) been applied. They have <em>not</em> been saved and there are currently no stored default permissions. Please review/edit the applied settings and click [Submit] to finalize.'),
			'$clear'          => t('Clear/Disable Automatic Permissions'),
			'$forum'          => t('Forum Members'),
			'$soapbox'        => t('Soapbox'),
			'$full'           => t('Full Sharing (typical social network permissions)'),
			'$cautious'       => t('Cautious Sharing '),
			'$follow'         => t('Follow Only'),
			'$permlbl'        => t('Individual Permissions'),
			'$permnote'       => t('Some permissions may be inherited from your channel <a href="settings">privacy settings</a>, which have higher priority than individual settings. Changing those inherited settings on this page will have no effect.'),
			'$advanced'       => t('Advanced Permissions'),
			'$quick'          => t('Simple Permissions (select one and submit)'),
			'$common_link'    => $a->get_baseurl(true) . '/common/loc/' . local_user() . '/' . $contact['id'],
			'$all_friends'    => $all_friends,
			'$relation_text'  => $relation_text,
			'$visit'          => sprintf( t('Visit %s\'s profile - %s'),$contact['xchan_name'],$contact['xchan_url']),
			'$blockunblock'   => t('Block/Unblock contact'),
			'$ignorecont'     => t('Ignore contact'),
			'$lblcrepair'     => t("Repair URL settings"),
			'$lblrecent'      => t('View conversations'),
			'$lblsuggest'     => $lblsuggest,
			'$delete'         => t('Delete contact'),
			'$poll_interval'  => contact_poll_interval($contact['priority'],(! $poll_enabled)),
			'$poll_enabled'   => $poll_enabled,
			'$lastupdtext'    => t('Last update:'),
			'$lost_contact'   => $lost_contact,
			'$updpub'         => t('Update public posts'),
			'$last_update'    => relative_date($contact['abook_connected']),
			'$udnow'          => t('Update now'),
			'$profile_select' => contact_profile_assign($contact['abook_profile']),
			'$multiprofs'     => feature_enabled(local_user(),'multi_profiles'),
			'$contact_id'     => $contact['abook_id'],
			'$block_text'     => (($contact['blocked']) ? t('Unblock') : t('Block') ),
			'$ignore_text'    => (($contact['readonly']) ? t('Unignore') : t('Ignore') ),
			'$blocked'        => (($contact['blocked']) ? t('Currently blocked') : ''),
			'$ignored'        => (($contact['readonly']) ? t('Currently ignored') : ''),
			'$archived'       => (($contact['archive']) ? t('Currently archived') : ''),
			'$pending'        => (($contact['archive']) ? t('Currently pending') : ''),
			'$name'           => $contact['name'],
			'$alt_text'       => $alt_text,
			'$url'            => $url

		));

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

		call_hooks('contact_edit', $arr);

		return $arr['output'];

	}


}