<?php
/**
 * @brief		Blog Node
 * @author		<a href='https://www.invisioncommunity.com'>Invision Power Services, Inc.</a>
 * @copyright	(c) Invision Power Services, Inc.
 * @license		https://www.invisioncommunity.com/legal/standards/
 * @package		Invision Community
 * @subpackage	Blog
 * @since		3 Mar 2014
 */

namespace IPS\blog;

/* To prevent PHP errors (extending class does not exist) revealing path */

use BadMethodCallException;
use InvalidArgumentException;
use IPS\Api\Webhook;
use IPS\Application;
use IPS\Content;
use IPS\Content\ClubContainer;
use IPS\Content\Comment;
use IPS\Content\ContentMenuLink;
use IPS\Content\Embeddable;
use IPS\Content\Item;
use IPS\Content\Search\Index;
use IPS\Content\ViewUpdates;
use IPS\core\Rss\Import;
use IPS\DateTime;
use IPS\Db;
use IPS\File;
use IPS\Helpers\Form;
use IPS\Helpers\Form\CheckboxSet;
use IPS\Helpers\Form\Editor;
use IPS\Helpers\Form\Node;
use IPS\Helpers\Form\Radio;
use IPS\Helpers\Form\SocialGroup;
use IPS\Helpers\Form\Text;
use IPS\Helpers\Form\Translatable;
use IPS\Helpers\Form\YesNo;
use IPS\Helpers\Menu;
use IPS\Http\Request\Exception;
use IPS\Http\Url;
use IPS\Http\Url\Friendly;
use IPS\Lang;
use IPS\Log;
use IPS\Member;
use IPS\Member\Club;
use IPS\Member\Group;
use IPS\Node\Model;
use IPS\Node\Ratings;
use IPS\Output;
use IPS\Patterns\ActiveRecordIterator;
use IPS\Request;
use IPS\Settings;
use IPS\Theme;
use IPS\Xml\SimpleXML;
use OutOfBoundsException;
use OutOfRangeException;
use UnderflowException;
use function count;
use function defined;
use function get_called_class;
use function get_class;
use function in_array;
use function intval;
use function is_array;
use function is_object;

if ( !defined( '\IPS\SUITE_UNIQUE_KEY' ) )
{
	header( ( $_SERVER['SERVER_PROTOCOL'] ?? 'HTTP/1.0' ) . ' 403 Forbidden' );
	exit;
}

/**
 * Blog Node
 */
class Blog extends Model implements Embeddable
{
	use ClubContainer, Ratings, ViewUpdates;
	
	/**
	 * @brief	[ActiveRecord] Multiton Store
	 */
	protected static array $multitons;
		
	/**
	 * @brief	[ActiveRecord] Database Table
	 */
	public static ?string $databaseTable = 'blog_blogs';
	
	/**
	 * @brief	[ActiveRecord] Database Prefix
	 */
	public static string $databasePrefix = 'blog_';
	
	/**
	 * @brief	Database Column Map
	 */
	public static array $databaseColumnMap = array(
		'author'				=> 'member_id',
		'title'					=> 'name',
		'views'					=> 'num_views',
		'pinned'				=> 'pinned',
		'featured'				=> 'featured',
		'date'					=> 'last_edate',
		'cover_photo'			=> 'cover_photo',
		'cover_photo_offset'	=> 'cover_photo_offset'
	);
	
	/**
	 * @brief	[Node] Node Title
	 */
	public static string $nodeTitle = 'blogs';
	
	/**
	 * @brief	[Node] Title prefix.  If specified, will look for a language key with "{$key}_title" as the key
	 */
	public static ?string $titleLangPrefix = 'blogs_blog_';
	
	/**
	 * @brief	[Node] Description suffix.  If specified, will look for a language key with "{$titleLangPrefix}_{$id}_{$descriptionLangSuffix}" as the key
	 */
	public static ?string $descriptionLangSuffix = '_desc';

	/**
	 * @brief	[Node] Parent Node ID Database Column
	 */
	public static string $parentNodeColumnId = 'category_id';
	
	/**
	 * @brief	[Node] Moderator Permission
	 */
	public static string $modPerm = 'blogs';

	/**
	 * @brief	[Node] Maximum results to display at a time in any node helper form elements. Useful for user-submitted node types when there may be a lot. NULL for no limit.
	 */
	public static ?int $maxFormHelperResults = 2000;
	
	/**
	 * @brief	Content Item Class
	 */
	public static ?string $contentItemClass = 'IPS\blog\Entry';

	/**
	 * @brief	Category
	 */
	protected ?Category $category = null;
	
	/**
	 * @brief	Icon
	 */
	public static string $icon = 'pen-to-square';
	
	/**
	* @brief	[Node] If the node can be "owned", the owner "type" (typically "member" or "group") and the associated database column
	*/
	public static ?array $ownerTypes = array( 'member' => 'member_id', 'group' => array( 'ids' => 'groupblog_ids', 'name' => 'groupblog_name' ) );
	
	/**
	 * @brief	[Node] By mapping appropriate columns (rating_average and/or rating_total + rating_hits) allows to cache rating values
	 */
	public static array $ratingColumnMap	= array(
			'rating_average'	=> 'rating_average',
			'rating_total'		=> 'rating_total',
			'rating_hits'		=> 'rating_count',
	);
	
	/**
	 * @brief	Cover Photo Storage Extension
	 */
	public static string $coverPhotoStorageExtension = 'blog_Blogs';
	
	/**
	 * @brief	Use a default cover photo
	 */
	public static bool $coverPhotoDefault = true;

	/**
	 * Determines if this class can be extended via UI Extension
	 *
	 * @var bool
	 */
	public static bool $canBeExtended = true;

	/**
	 * Columns needed to query for search result / stream view
	 *
	 * @return	array
	 */
	public static function basicDataColumns(): array
	{
		$return = parent::basicDataColumns();
		$return[] = 'blog_member_id';
		return $return;
	}

	/**
	 * Get template for content tables
	 *
	 * @return	array
	 */
	public static function contentTableTemplate(): array
	{
		return array( Theme::i()->getTemplate( 'browse', 'blog', 'front' ), 'rows' );
	}
	
	/**
	 * Can create blog?
	 *
	 * @param	Member|NULL	$member	The member (NULL for currently logged in member)
	 * @return	bool
	 */
	public static function canCreate( Member $member = NULL ): bool
	{
		$member = $member ?: Member::loggedIn();
		
		if ( $member->member_id and $member->group['g_blog_allowlocal'] )
		{
			if ( $member->group['g_blog_maxblogs'] )
			{
				return ( Db::i()->select( 'COUNT(*)', 'blog_blogs', array( 'blog_member_id=?', $member->member_id ) )->first() < $member->group['g_blog_maxblogs'] );
			}
			
			return TRUE;
		}
		
		return FALSE;
	}

	/**
	 * Check the action column map if the action is enabled in this node
	 *
	 * @param string $action
	 * @return bool
	 */
	public function checkAction( string $action ) : bool
	{
		/* We don't want any kind of specific comment moderation here, just leave it up to the
		general rules */
		if( $action == 'moderate_comments' )
		{
			return false;
		}

		return parent::checkAction( $action );
	}
	
	/**
	 * Check permissions on any node
	 *
	 * For example - can be used to check if the user has
	 * permission to create content in any node to determine
	 * if there should be a "Submit" button
	 *
	 * @param	mixed								$permission						A key which has a value in static::$permissionMap['view'] matching a column ID in core_permission_index
	 * @param	Member|Group|NULL	$member							The member or group to check (NULL for currently logged in member)
	 * @param	array								$where							Additional WHERE clause
	 * @param	bool								$considerPostBeforeRegistering	If TRUE, and $member is a guest, will return TRUE if "Post Before Registering" feature is enabled
	 * @return	bool
	 * @throws	OutOfBoundsException	If $permission does not exist in static::$permissionMap
	 */
	public static function canOnAny( mixed $permission, Group|Member $member=NULL, array $where = array(), bool $considerPostBeforeRegistering = TRUE ): bool
	{
		$member = $member ?: Member::loggedIn();
		
		/* Posts per day - we need to do this independently here, because Blogs do not implement the Permissions interface */
		if ( in_array( $permission, array( 'add', 'reply' ) ) )
		{
			$checkPostsPerDay = TRUE;
			if ( isset( static::$contentItemClass ) )
			{
				/* @var Item $contentClass */
				$contentClass = static::$contentItemClass;
				$checkPostsPerDay = $contentClass::$checkPostsPerDay;
			}
			
			if ( $checkPostsPerDay === TRUE AND $member->checkPostsPerDay() === FALSE )
			{
				return FALSE;
			}
		}
		
		/* This will always return true, but we always want to bubble up anyway */
		return parent::canOnAny( $permission, $member, $where, $considerPostBeforeRegistering );
	}

	/**
	 * Check permissions
	 *
	 * @param	mixed								$permission						A key which has a value in static::$permissionMap['view'] matching a column ID in core_permission_index
	 * @param Group|Member|null $member							The member or group to check (NULL for currently logged in member)
	 * @param bool $considerPostBeforeRegistering	If TRUE, and $member is a guest, will return TRUE if "Post Before Registering" feature is enabled
	 * @return	bool
	 * @throws	OutOfBoundsException	If $permission does not exist in static::$permissionMap
	 */
	public function can( mixed $permission, Group|Member $member=NULL, bool $considerPostBeforeRegistering = TRUE ): bool
	{		
		/* Load member */
		if ( $member === NULL )
		{
			$member = Member::loggedIn();
		}
		
		/* If the member has hit their posting limits, then just stop here. */
		switch( $permission )
		{
			case 'add':
			case 'reply':
				if ( $member->checkPostsPerDay() === FALSE )
				{
					return FALSE;
				}
				break;
		}
		
		if ( $club = $this->club() )
		{
			switch ( $permission )
			{
				case 'add':
					return $club->isModerator( $member );
					
				case 'view':
				case 'read':
				default:
					if( $this->isPublic() )
					{
						return TRUE;
					}
					return $club->canRead( $member );
			}
		}

		if ( $this->social_group )
		{
			if ( !$member->member_id )
			{
				return FALSE;
			}
			
			if ( $member->member_id !== $this->member_id )
			{
				try
				{
					Db::i()->select( '*', 'core_sys_social_group_members', array( 'group_id=? AND member_id=?', $this->social_group, $member->member_id ) )->first();
				}
				catch ( UnderflowException )
				{
					return FALSE;
				}
			}
		}
		
		if ( $permission === 'add' )
		{
			if ( !$member->member_id )
			{
				return FALSE;
			}
			elseif ( $member->member_id === $this->member_id )
			{
				return TRUE;
			}
			else
			{
				if ( $this->groupblog_ids )
				{
					return $member->inGroup( explode( ',', $this->groupblog_ids ) );
				}
				else
				{
					return FALSE;
				}
			}
		}
		
		return parent::can( $permission, $member, $considerPostBeforeRegistering );
	}
	
	/**
	 * Search Index Permissions
	 *
	 * @return	string	Comma-delimited values or '*'
	 * 	@li			Number indicates a group
	 *	@li			Number prepended by "m" indicates a member
	 *	@li			Number prepended by "s" indicates a social group
	 */
	public function searchIndexPermissions(): string
	{
		$return = parent::searchIndexPermissions();
		
		if ( $club = $this->club() )
		{
			if ( $club->type == $club::TYPE_PUBLIC or $club->type == $club::TYPE_READONLY or $club->type == $club::TYPE_OPEN)
			{
				return '*';
			}
			else
			{
				return "cm,c{$club->id}";
			}
		}
		elseif ( $this->social_group )
		{
			$return = ( $return === '*' ) ? array() : explode( ',', $return );
			
			if ( $this->member_id )
			{
				$return[] = "m{$this->member_id}";
			}
			$return[] = "s{$this->social_group}";
			
			$return = implode( ',', array_unique( $return ) );
		}
		
		return $return;
	}
	
	/**
	 * Additional WHERE clauses for Follow view
	 *
	 * @param array $joins	Joins
	 * @return	array
	 */
	public static function followWhere( array &$joins ): array
	{
		$where = array();
		
		if ( Member::loggedIn()->member_id )
		{
			$where[] = array( '( blog_blogs.blog_social_group IS NULL OR blog_blogs.blog_member_id=' . Member::loggedIn()->member_id . ' OR ( ' . Content::socialGroupGetItemsWithPermissionWhere( 'blog_blogs.blog_social_group', Member::loggedIn() ) . ' ) )' );
		}
		else
		{
			$where[] = Content::socialGroupGetItemsWithPermissionWhere( 'blog_blogs.blog_social_group', Member::loggedIn() );
		}
		
		if ( Settings::i()->clubs )
		{
			$joins[] = array( 'from' => 'core_clubs', 'where' => 'core_clubs.id=blog_blogs.blog_club_id' );
			if ( Member::loggedIn()->member_id )
            {
				$where[] = array( '( blog_blogs.blog_club_id IS NULL OR ' . Db::i()->in( 'blog_blogs.blog_club_id', Member::loggedIn()->clubs() ) . ' OR core_clubs.type=? OR core_clubs.type=? )', Club::TYPE_PUBLIC, Club::TYPE_READONLY );
            }
            else
            {
				$where[] = array( '( blog_blogs.blog_club_id IS NULL OR core_clubs.type=? OR core_clubs.type=? )', Club::TYPE_PUBLIC, Club::TYPE_READONLY );
            }
		}
				
		return $where;
	}
		
	/**
	 * [Node] Does the currently logged in user have permission to delete this node?
	 *
	 * @return    bool
	 */
	public function canDelete(): bool
	{
		foreach ( Db::i()->select( 'data', 'core_queue', array( 'app=? AND `key`=?', 'core', 'DeleteOrMoveContent' ) ) as $row )
		{
			$data = json_decode( $row, TRUE );
			if ( $data['class'] === get_class( $this ) and $data['id'] == $this->_id )
			{
				return FALSE;
			}
		}
		
		return static::restrictionCheck( 'delete' ) or ( $this->member_id === Member::loggedIn()->member_id and Member::loggedIn()->group['g_blog_allowdelete'] );
	}
	
	/**
	 * [Node] Add/Edit Form
	 *
	 * @param	Form	$form	The form
	 * @param bool $public	Whether this is a public form or not
	 * @return	void
	 */
	public function form( Form &$form, bool $public=FALSE ) : void
	{
		if( $public )
		{
			$form->addTab( 'blog_settings' );
			
			if ( !$this->id OR Member::loggedIn()->modPermission('can_mod_blogs') )
			{
				$form->add( new Node( 'blog_category_id', $this->id ? $this->category_id : NULL, TRUE, array(
					'class'				=> '\IPS\blog\Category',
					'subnodes'	=> FALSE,
				), NULL, NULL, NULL, 'blog_category_id' ) );
			}

			$form->add( new Text( 'blog_name', $this->id ? $this->_title : NULL, TRUE, array(), NULL, NULL, NULL, 'blog_name' ) );
			$form->add( new Editor( 'blog_desc', $this->id ? $this->description : NULL, FALSE, array( 'app' => 'blog', 'key' => 'Blogs', 'autoSaveKey' => ( $this->id ? "blogs-blog-{$this->id}" : "blogs-new-blog" ), 'attachIds' => $this->id ? array( $this->id, NULL, 'description' ) : NULL, 'minimize' => 'blog_desc_placeholder' ), NULL, NULL, NULL, 'blog_desc_wrap' ) );
		}
		else
		{
			if( $this->id )
			{
				$form->add( new Node( 'blog_category_id', $this->category_id, TRUE, array(
					'class'				=> '\IPS\blog\Category',
					'subnodes'	=> FALSE,
				), NULL, NULL, NULL, 'blog_category_id' ) );
			}
			else
			{
				$form->hiddenValues['blog_category_id'] = Request::i()->parent;
			}

			$groups = array();
			foreach ( Group::groups() as $k => $v )
			{
				$groups[ $k ] = $v->name;
			}

			$id = $this->id ?: 'new';
	
			$form->add( new Radio( 'blog_type', ( $this->id AND $this->groupblog_ids ) ? 'group' : 'member', TRUE, array(
					'options' => array(
							'member' 	=> 'blog_type_normal',
							'group' 	=> 'blog_type_group'
					),
					'toggles'	=> array(
							'member'	=> array( 'blog_member_id', 'blog_name', 'blog_desc_wrap' ),
							'group'		=> array( 'blog_groupblog_ids', 'blog_groupblog_name', 'blog_name_group', 'blog_desc_group_wrap' )
					)
			) ) );
			
			$form->add( new Form\Member( 'blog_member_id', $this->member_id ? Member::load( $this->member_id ) : NULL, FALSE, array(), function($member ) use ( $form )
			{
				if ( Request::i()->blog_type === 'member' )
				{
					if( !is_object( $member ) or !$member->member_id )
					{
						throw new InvalidArgumentException( 'no_blog_author_selected' );
					}
				}
			},
			NULL, NULL, 'blog_member_id' ) );

			$form->add( new CheckboxSet( 'blog_groupblog_ids', $this->id ? explode( ',', $this->groupblog_ids ) : array(), FALSE, array( 'options' => $groups, 'multiple' => TRUE ), NULL, NULL, NULL, 'blog_groupblog_ids' ) );
			$form->add( new Translatable( 'blog_groupblog_name', NULL, FALSE, array( 'app' => 'blog', 'key' => ( $this->id ? "blogs_groupblog_name_{$this->id}" : NULL ) ), function( $value ) {
				if ( Request::i()->blog_type === 'group' )
				{
					$hasTitle = FALSE;

					foreach( $value as $_value )
					{
						if( $_value )
						{
							$hasTitle = TRUE;
							break;
						}
					}

					if( !$hasTitle )
					{
						throw new InvalidArgumentException( 'form_required' );
					}
				}
			}, NULL, NULL, 'blog_groupblog_name' ) );

			/* Owned blogs */
			$form->add( new Text( 'blog_name', $this->id ? $this->_title : NULL, FALSE, array(), function( $value ) {
				if ( Request::i()->blog_type === 'member' AND !$value )
				{
					throw new InvalidArgumentException( 'form_required' );
				}
			}, NULL, NULL, 'blog_name' ) );
			$form->add( new Editor( 'blog_desc', $this->id ? $this->description : NULL, FALSE, array( 'app' => 'blog', 'key' => 'Blogs', 'autoSaveKey' => ( $this->id ? "blogs-blog-{$this->id}m" : "blogs-new-blog" ), 'attachIds' => $this->id ? array( $this->id, NULL, 'description' ) : NULL, 'minimize' => 'blog_desc_placeholder' ), NULL, NULL, NULL, 'blog_desc_wrap' ) );

			/* Group blogs - only one or the other will show at any given time */
			$form->add( new Translatable( 'blog_name_group', ( $this->id AND !$this->groupblog_ids ) ? $this->_title : NULL, FALSE, array( 'app' => 'blog', 'key' => ( $this->id ? "blogs_blog_{$this->id}" : NULL ) ), function( $value ) {
				if ( Request::i()->blog_type === 'group' )
				{
					$hasTitle = FALSE;

					foreach( $value as $_value )
					{
						if( $_value )
						{
							$hasTitle = TRUE;
							break;
						}
					}

					if( !$hasTitle )
					{
						throw new InvalidArgumentException( 'form_required' );
					}
				}
			}, NULL, NULL, 'blog_name_group' ) );
			$form->add( new Translatable( 'blog_desc_group', NULL, FALSE, array( 'app' => 'blog', 'key' => ( $this->id ? "blogs_blog_{$this->id}_desc" : NULL ), 'editor' => array( 'app' => 'blog', 'key' => 'Blogs', 'autoSaveKey' => ( $this->id ? "blogs-blog-{$this->id}-group" : "blogs-new-blog-group" ), 'attachIds' => $this->id ? array( $this->id, NULL, 'description' ) : NULL, 'minimize' => 'blog_desc_placeholder' ) ), NULL, NULL, NULL, 'blog_desc_group_wrap' ) );
		}

		/* Sidebar */
		if ( Settings::i()->blog_enable_sidebar )
		{
			$form->add( new YesNo( 'blog_sidebar_enabled', (bool)$this->sidebar, FALSE, array( 'togglesOn' => array( 'blog_sidebar_wrap' ) ) ) );
			$form->add( new Editor( 'blog_sidebar', $this->id ? $this->sidebar : NULL, FALSE, array( 'app' => 'blog', 'key' => 'Blogs', 'autoSaveKey' => ( $this->id ? "blogs-blogsidebar-{$this->id}" : "blogs-new-blog-sidebar" ), 'attachIds' => $this->id ? array( $this->id, NULL, 'sidebar' ) : NULL ), NULL, NULL, NULL, 'blog_sidebar_wrap' ) );
		}

		if ( Member::loggedIn()->group['g_blog_allowprivate'] )
		{
			$form->add( new Radio( 'blog_privacy', $this->social_group ? 'private' : 'open', FALSE, array(
				'options' => array(
					'open' 		=> 'blog_privacy_open',
					'private' 	=> 'blog_privacy_private'
				),
				'toggles'	=> array(
					'private'		=> array( 'blog_social_group' )
				)
			) ) );
			$form->add( new SocialGroup( 'blog_social_group', $this->social_group, NULL, array( 'owner' => $this->owner() ), NULL, NULL, NULL, 'blog_social_group' ) );
		}
		
		if( Settings::i()->blog_allow_rss )
		{
			$form->add( new YesNo( 'blog_enable_rss', $this->id ? $this->settings['allowrss'] : TRUE ) );
		}
		
		$form->add( new YesNo( 'allow_anonymous_comments', $this->id ? $this->allow_anonymous : FALSE, FALSE, array() ) );

        parent::form( $form );
	}
	
	/**
	 * [Node] Format form values from add/edit form for save
	 *
	 * @param	array	$values	Values from the form
	 * @return	array
	 */
	public function formatFormValues( array $values ): array
	{
		if ( isset( $values['blog_category_id'] ) and is_object( $values[ 'blog_category_id' ] ) )
		{
			$values[ 'blog_category_id' ] = intval( $values[ 'blog_category_id' ]->id );
		}

		if( isset( $values['blog_type'] ) and $values['blog_type'] == 'member' and isset( $values['blog_member_id'] ) and is_object( $values['blog_member_id'] ) )
		{
			$values['blog_member_id']		= $values['blog_member_id']->member_id;
			$values['blog_groupblog_ids']	= '';
			$this->member_id				= $values['blog_member_id'];
		}
		else if ( !$this->id and !isset( $values['blog_type'] ) )
		{
			$values['blog_member_id'] = Member::loggedIn()->member_id;
			$this->member_id = $values['blog_member_id'];
		}
		else if ( isset( $values['blog_type'] ) )
		{
			$this->member_id = 0;
		}
		
		if( isset( $values['blog_type'] ) )
		{
			unset( $values['blog_type'] );
		}
		
		if( isset( $values['allow_anonymous_comments'] ) )
		{
			$values['allow_anonymous'] = ( $values['allow_anonymous_comments'] ? 2 : 0 );
			unset( $values['allow_anonymous_comments'] );
		}

		$this->massUpdateIndex = FALSE;
		if ( isset( $values['blog_privacy'] ) and $values['blog_privacy'] === 'private' )
		{
			if ( $this->id and !$this->social_group )
			{
				$this->massUpdateIndex = TRUE;
			}
		}
		else
		{
			if ( $this->id and $this->social_group )
			{
				$this->massUpdateIndex = TRUE;

				Db::i()->delete( 'core_sys_social_groups', array( 'group_id=?', $this->social_group ) );
				Db::i()->delete( 'core_sys_social_group_members', array( 'group_id=?', $this->social_group ) );
			}
			
			$values['blog_social_group'] = NULL;
		}

		if( isset($values['blog_privacy'] ) )
		{
			unset( $values['blog_privacy'] );
		}

		if ( !$this->id )
		{
			$this->category_id = $values[ 'blog_category_id' ];
			$this->save();

			if( $values['blog_member_id'] )
			{
				File::claimAttachments( 'blogs-new-blog', $this->id, NULL, 'description' );
			}
			else
			{
				File::claimAttachments( 'blogs-new-blog-group', $this->id, NULL, 'description', TRUE );
			}
		}

		/* If this is not a member blog we store the languages in the language system */
		if( !$this->member_id )
		{
			foreach ( array( 'blog_name_group' => "blogs_blog_{$this->id}", 'blog_desc_group' => "blogs_blog_{$this->id}_desc", 'blog_groupblog_name' => "blogs_groupblog_name_{$this->id}" ) as $fieldKey => $langKey )
			{
				if ( isset( $values[ $fieldKey ] ) )
				{
					Lang::saveCustom( 'blog', $langKey, $values[ $fieldKey ] );
		
					if ( $fieldKey === 'blog_name' )
					{
						$values['seo_name'] = Friendly::seoTitle( ( is_array( $values[ $fieldKey ] ) ) ? $values[ $fieldKey ][ Lang::defaultLanguage() ] : $values[ $fieldKey ] );
					}
		
					unset( $values[ $fieldKey ] );
				}
			}
			
			if( array_key_exists( 'blog_desc', $values ) )
			{
				unset( $values['blog_desc'] );
			}
		}
		else
		{
			/* If we're changing the author of the blog update the feed */
			if( isset( $values['blog_member_id'] ) )
			{
				try
				{
					$feed = Import::constructFromData( Db::i()->select( '*', 'core_rss_import', array( 'rss_import_class=? AND rss_import_node_id=?', 'IPS\\blog\\Entry', $this->id ) )->first() );
				}
				catch ( UnderflowException )
				{
					$feed = NULL;
				}

				if( $feed )
				{
					$feed->member = $values['blog_member_id'];
					$feed->save();
				}
			}
			
			Lang::saveCustom( 'blog', "blogs_blog_{$this->id}", $values['blog_name'] );
			
			/* This is here in case an admin changes a group blog to a member blog */
			Lang::deleteCustom( 'blog', "blogs_groupblog_name_{$this->id}" );

			$values['seo_name'] = Friendly::seoTitle( $values['blog_name'] );
		}
		
		if( array_key_exists( 'blog_name', $values ) )
		{
			unset( $values['blog_name'] );
		}

		if( array_key_exists( 'blog_name_group', $values ) )
		{
			unset( $values['blog_name_group'] );
		}

		if( array_key_exists( 'blog_desc_group', $values ) )
		{
			unset( $values['blog_desc_group'] );
		}

		if( array_key_exists( 'blog_groupblog_name', $values ) )
		{
			unset( $values['blog_groupblog_name'] );
		}

		if( array_key_exists( 'blog_enable_rss', $values ) )
		{
			$values['settings'] =  array( 'allowrss' => $values['blog_enable_rss'] );
			unset( $values['blog_enable_rss'] );
		}

		if( array_key_exists( 'blog_sidebar_enabled', $values ) )
		{
			$values['blog_sidebar'] = $values['blog_sidebar_enabled'] ? $values['blog_sidebar'] : NULL;
			unset( $values['blog_sidebar_enabled'] );
		}

		/* Send to parent */
		if( array_key_exists( 'blog_member_id', $values ) )
		{
			unset( $values['blog_member_id'] );
		}

		return $values;
	}

	/**
	 * @brief	Mass update search index after changes
	 */
	protected bool $massUpdateIndex	= FALSE;

	/**
	 * [Node] Perform actions after saving the form
	 *
	 * @param	array	$values	Values from the form
	 * @return	void
	 */
	public function postSaveForm( array $values ) : void
	{
		/* Update index? */
		if ( $this->massUpdateIndex )
		{
			Index::i()->massUpdate( 'IPS\blog\Entry', $this->id, NULL, $this->searchIndexPermissions() );
		}

		/* If this was a new blog, fire the webhook */
		if ( $this->newBlog )
		{
			Webhook::fire( 'blogBlog_create', $this, $this->webhookFilters() );
		}

        parent::postSaveForm( $values );
	}

	/**
	 * @brief	Cached URL
	 */
	protected mixed $_url = NULL;

	/**
	 * Get SEO name
	 *
	 * @return	string
	 */
	public function get_seo_name(): string
	{
		/* If we have the seo_name, just return it - don't query the language string */
		if( isset( $this->_data['seo_name'] ) and $this->_data['seo_name'] )
		{
			return $this->_data['seo_name'];
		}

		/* The seo_name isn't set, so let's fix that real quick and return it */
		$title = Lang::load( Lang::defaultLanguage() )->get( 'blogs_blog_' . $this->id );

		$seoTitle = Url::seoTitle( $title );
		$this->seo_name	= $seoTitle;
		$this->save();

		return $seoTitle;
	}

	/**
	 * @brief	URL Base
	 */
	public static string $urlBase = 'app=blog&module=blogs&controller=view&id=';
	
	/**
	 * @brief	URL Base
	 */
	public static string $urlTemplate = 'blogs_blog';
	
	/**
	 * @brief	SEO Title Column
	 */
	public static string $seoTitleColumn = 'seo_name';
	
	/**
	 * @brief	Cached latest entry
	 */
	protected ?Entry $latestEntry = NULL;
	
	/**
	 * Set last comment
	 *
	 * @param Comment|null $comment The latest comment or NULL to work it out
	 * @param Item|null $updatedItem We sometimes run setLastComment() when an item has been edited, if so, that item will be here
	 * @return    void
	 */
	protected function _setLastComment( Comment $comment=NULL, Item $updatedItem=NULL ) : void
	{
		$lastUpdateColumn	= static::$databaseColumnMap['date'];
		
		if ( $latestEntry = $this->latestEntry() )
		{
			$this->$lastUpdateColumn = $latestEntry->date;
		}
		else
		{
			$this->$lastUpdateColumn = 0;
		}
		
		$this->save();
	}

	/**
	 * Get latest entry
	 *
	 * @return    Entry|NULL
	 */
	public function latestEntry(): ?Entry
	{
		if( $this->latestEntry !== NULL )
		{
			return $this->latestEntry;
		}

		try
		{
			/* @note entry_hidden is flipped to map to "approved" and that this method will always only return the latest, visible, entry. */
			$this->latestEntry = Entry::constructFromData( Db::i()->select( '*', 'blog_entries', array( 'entry_blog_id=? AND entry_is_future_entry=0 AND entry_hidden=1 AND entry_status!=?', $this->_id, 'draft' ), 'entry_date DESC', 1 )->first() );
			return $this->latestEntry;
		}
		catch ( UnderflowException )
		{
			return NULL;
		}
	}
	
	/**
	 * Contributors
	 *
	 * @return	array
	 */
	public function contributors(): array
	{
		$contributors = array();
		
		try 
		{
			/* Get member IDs and contributions count */
			$select = Db::i()->select(
					"entry_author_id, count( entry_id ) as contributions",
					'blog_entries',
					array( "entry_blog_id=? AND entry_author_id !=? AND entry_hidden!=?", $this->id, 0, -2 ),
					"contributions DESC",
					NULL,
					array( 'entry_author_id' )
			)->setKeyField( 'entry_author_id' )->setValueField( 'contributions' );

			/* Get the member ids to load them in one query */
			$memberIds	= array();
			$members	= array();

			foreach( $select as $member => $contributions )
			{
				$memberIds[] = $member;
			}

			if( count( $memberIds ) )
			{
				foreach( Db::i()->select( '*', 'core_members', 'member_id IN(' . implode( ',', $memberIds ) . ')' ) as $member )
				{
					$members[ $member['member_id'] ] = Member::constructFromData( $member );
				}
			}

			/* Get em! */
			foreach( $select as $member => $contributions )
			{
				$contributors[] = array( 'member' => $members[ $member ], 'contributions' => $contributions );
			}
		}
		catch ( UnderflowException ) {}

		return $contributors;
	}
	
	/**
	 * Retrieve recent entries
	 *
	 * @return	ActiveRecordIterator
	 */
	public function get__recentEntries(): ActiveRecordIterator
	{
		return Entry::getItemsWithPermission( array( array( 'entry_blog_id=? AND entry_is_future_entry=0 AND entry_status!=?', $this->id, 'draft' ) ), NULL, 5 );
	}
	
	/**
	 * [Node] Get number of content items
	 *
	 * @return	int|null
	 */
	protected function get__items(): ?int
	{
		return $this->count_entries;
	}
	
	/**
	 * [Node] Get number of content comments
	 *
	 * @return	int|null
	 */
	protected function get__comments(): ?int
	{
		return $this->count_comments;
	}
	
	/**
	 * [Node] Get number of unapproved content items
	 *
	 * @return	int|null
	 */
	protected function get__unnapprovedItems(): ?int
	{
		return $this->count_entries_hidden;
	}
	
	/**
	 * [Node] Get number of unapproved content comments
	 *
	 * @return	int|null
	 */
	protected function get__unapprovedComments(): ?int
	{
		return $this->count_comments_hidden;
	}
	
	/**
	 * Set number of items
	 *
	 * @param int $val	Items
	 * @return	void
	 */
	protected function set__items( int $val ) : void
	{
		$this->count_entries = $val;
	}
	
	/**
	 * Set number of items
	 *
	 * @param int $val	Comments
	 * @return	void
	 */
	protected function set__comments( int $val ) : void
	{
		$this->count_comments = $val;
	}
	
	/**
	 * [Node] Get number of unapproved content items
	 *
	 * @param int $val	Unapproved Items
	 * @return	void
	 */
	protected function set__unapprovedItems( int $val ) : void
	{
		$this->count_entries_hidden = $val;
	}
	
	/**
	 * [Node] Get number of unapproved content comments
	 *
	 * @param int $val	Unapproved Comments
	 * @return	void
	 */
	protected function set__unapprovedComments( int $val ) : void
	{
		$this->count_comments_hidden = $val;
	}
	
	/**
	 * [Node] Get number of future publishing items
	 *
	 * @return	int|null
	 */
	protected function get__futureItems(): ?int
	{
		return $this->count_entries_future;
	}
	
	/**
	 * [Node] Get number of unapproved content items
	 *
	 * @param	int	$val	Unapproved Items
	 * @return	void
	 */
	protected function set__futureItems( int $val ) : void
	{
		$this->count_entries_future = ( $val > 0 ) ? $val : 0;
	}

	/**
	 * Returns the title
	 *
	 * @return string|null
	 */
	protected function get_description(): ?string
	{
		return $this->member_id ? $this->desc : Member::loggedIn()->language()->addToStack( static::$titleLangPrefix . $this->_id . static::$descriptionLangSuffix );
	}
	
	/**
	 * Get settings
	 *
	 * @return	array
	 */
	public function get_settings(): array
	{
		return isset( $this->_data['settings'] ) ? json_decode( $this->_data['settings'], TRUE ) : array();
	}
	
	/**
	 * Set settings
	 *
	 * @param array $values	Values
	 * @return	void
	 */
	public function set_settings( array $values ) : void
	{
		$this->_data['settings'] = json_encode( $values );
	}
	
	/**
	 * Ping Ping-o-matic
	 *
	 * @return	void
	 */
	public function ping() : void
	{		
		$xml = SimpleXML::create('methodCall');
	
		$methodName = $xml->addChild( 'methodName', 'weblogUpdates.ping' );
		$params = $xml->addChild( 'params' );
 		$params->addChild( 'param' )->addChild( 'value', $this->_title );
 		$params->addChild( 'param' )->addChild( 'value', $this->url() );
		
		try
		{
	 		Url::external( 'https://rpc.pingomatic.com/RPC2' )
			->request()
			->setHeaders( array( 'Content-Type' => 'text/xml', 'User-Agent' => "InvisionCommunity/" . Application::load('core')->long_version ) )
			->post( $xml->asXML() );
		}
		catch ( Exception $e )
		{
			Log::log( $e, 'pingomatic' );
		}
	}

	/**
	 * Get template for node tables
	 *
	 * @return array
	 */
	public static function nodeTableTemplate(): array
	{
		return array( Theme::i()->getTemplate( 'browse', 'blog' ), 'rows' );
	}

	/**
	 * @brief	Remember if this is a new blog so we can fire the webhook if so
	 */
	protected ?bool $newBlog	= NULL;
	
	/**
	 * Save Changed Columns
	 *
	 * @return    void
	 */
	public function save(): void
	{
		if( $this->newBlog === NULL )
		{
			$this->newBlog = $this->_new;
		}
		
		parent::save();
	}
	
	/**
	 * [ActiveRecord] Delete Record
	 *
	 * @return    void
	 */
	public function delete(): void
	{
		/* Delete RSS Imports */
		try
		{
			$import = Import::constructFromData( Db::i()->select( '*', 'core_rss_import', array( "rss_import_class=? AND rss_import_node_id=?", 'IPS\\blog\\Entry', $this->_id ) )->first() );
			$import->delete();
		}
		catch( UnderflowException ) { }
		
		/* Delete Language Strings */
		foreach ( array( 'blog_groupblog_name' => "blogs_groupblog_name_{$this->id}" ) as $fieldKey => $langKey )
		{
			Lang::deleteCustom( 'blog', $langKey );
		}

		
		/* Unclaim Attachments */
		File::unclaimAttachments( 'blog_Blogs', $this->id );

		$this->coverPhotoFile()?->delete();
		
		/* Delete Follows */
		Db::i()->delete( 'core_follow', array( "follow_app=? AND follow_area=? AND follow_rel_id=?", 'blog', 'blog', $this->_id ) );
		
		/* Delete Entry categories */
		Db::i()->delete( 'blog_entry_categories', array( "entry_category_blog_id = ?", $this->_id ) );
		
		parent::delete();
	}
	
	/**
	 * Cover Photo
	 *
	 * @return	mixed
	 */
	public function coverPhoto(): mixed
	{
		$photo = parent::coverPhoto();
        $photo->overlay = Theme::i()->getTemplate('view', 'blog', 'front')->coverPhotoOverlay($this);
		return $photo;
	}

	/**
	 * Produce a random hex color for a background
	 *
	 * @return string
	 */
	public function coverPhotoBackgroundColor(): string
	{
		return $this->staticCoverPhotoBackgroundColor( $this->titleForLog() );
	}
	
	/**
	 * Get content for embed
	 *
	 * @param array $params	Additional parameters to add to URL
	 * @return	string
	 */
	public function embedContent( array $params ): string
	{
		Output::i()->cssFiles = array_merge( Output::i()->cssFiles, Theme::i()->css( 'embed.css', 'blog', 'front' ) );
		return Theme::i()->getTemplate( 'global', 'blog' )->embedBlogs( $this, $this->url()->setQueryString( $params ) );
	}

	/**
	 * [Node] Get content table meta description
	 *
	 * @return string|null
	 */
	public function metaDescription(): ?string
	{
		if( $this->member_id AND $this->desc )
		{
			return strip_tags( $this->desc );
		}

		return parent::metaDescription();
	}
	
	/**
	 * Get output for API
	 *
	 * @param	Member|NULL	$authorizedMember	The member making the API request or NULL for API Key / client_credentials
	 * @return	array
	 * @apiresponse	int						id			ID number
	 * @apiresponse	string					name		Name
	 * @apiresponse	string					description	Description
	 * @apiresponse	\IPS\Member				owner		If the blog is owned by a single member, the member
	 * @apiresponse	[\IPS\Member\Group]		groups		If the blog is owned by groups, an array of the groups
	 * @apiresponse	bool					pinned		If the blog is pinned
	 * @apiresponse	int						entries		Number of entries
	 * @apiresponse	int						comments	Number of comments
	 * @apiresponse	string					url			URL
	 * @apiresponse	\IPS\blog\Category|NULL	category	Category, or NULL for club blogs
	 */
	public function apiOutput( Member $authorizedMember = NULL ): array
	{
		$groups = array();
		if ( $this->groupblog_ids )
		{
			foreach ( array_filter( explode( ',', $this->groupblog_ids ) ) as $groupId )
			{
				try
				{
					$groups[] = Group::load( $groupId )->apiOutput( $authorizedMember );
				}
				catch ( OutOfRangeException ) { }
			}
		}
		
		$return = array(
			'id'			=> $this->id,
			'name'			=> $this->_title,
			'description'	=> $this->member_id ? $this->desc : Member::loggedIn()->language()->addToStack( static::$titleLangPrefix . $this->_id . static::$descriptionLangSuffix ),
			'owner'			=> $this->member_id ? $this->owner()->apiOutput( $authorizedMember ) : null,
			'groups'		=> $groups,
			'pinned'		=> (bool) $this->pinned,
			'entries'		=> $this->count_entries,
			'comments'		=> $this->count_comments,
			'url'			=> (string) $this->url(),
			'category'		=> NULL
		);

		try
		{
			$return['category'] = $this->category()->apiOutput();
		}
		catch( OutOfRangeException ){}

		return $return;
	}
	
	/**
	 * Permission Types
	 *
	 * @return	array
	 */
	public function permissionTypes(): array
	{
		return array( 'view' => 'view', 'add' => 'add' );
	}
	
	/* !Clubs */
	
	/**
	 * Get front-end language string
	 *
	 * @return	string
	 */
	public static function clubFrontTitle(): string
	{
		return 'blogs_sg';
	}

	/**
	 * Set form for creating a node of this type in a club
	 *
	 * @param Form $form Form object
	 * @param Club $club
	 * @return    void
	 */
	public function _clubForm( Form $form, Club $club ) : void
	{
		Output::i()->jsFiles = array_merge( Output::i()->jsFiles, Output::i()->js( 'front_view.js', 'blog', 'front' ) );

		$form->addTab( 'blog_settings' );
		$itemClass = static::$contentItemClass;
		$form->add( new Text( 'club_node_name', $this->_id ? $this->_title : Member::loggedIn()->language()->addToStack( 'blogs_sg' ), TRUE, array( 'maxLength' => 255 ) ) );
		$form->add( new Editor( 'club_node_description', $this->_id ? Member::loggedIn()->language()->get( static::$titleLangPrefix . $this->_id . '_desc' ) : NULL, FALSE, array( 'app' => 'blog', 'key' => 'Blogs', 'autoSaveKey' => ( $this->id ? "blogs-blog-{$this->id}" : "blogs-new-blog" ), 'attachIds' => $this->id ? array( $this->id, NULL, 'description' ) : NULL, 'minimize' => 'blog_desc_placeholder' ) ) );
		if( Settings::i()->blog_allow_rss )
		{
			$form->add( new YesNo( 'blog_enable_rss', $this->id ? $this->settings['allowrss'] : TRUE ) );
		}
		
		if( $club->type == 'closed' )
		{
			$form->add( new Radio( 'club_node_public', $this->id ? $this->isPublic() : 0, TRUE, array( 'options' => array( '0' => 'club_node_public_no', '1' => 'club_node_public_view', '2' => 'club_node_public_participate' ) ) ) );
		}

		/* Categories */
		if ( $this->id )
		{
			$form->addTab( 'blog_entry_categories' );
			$form->addHtml( Theme::i()->getTemplate( 'view', 'blog', 'front' )->manageCategories( $this ) );
		}

	}
	
	/**
	 * Class-specific routine when saving club form
	 *
	 * @param	Club	$club	The club
	 * @param	array				$values	Values
	 * @return	void
	 */
	public function _saveClubForm( Club $club, array $values ) : void
	{
		if( Settings::i()->blog_allow_rss )
		{
			$settings = $this->settings;
			$settings['allowrss'] = $values['blog_enable_rss'];
			$this->settings = $settings;
		}
		
		if ( $values['club_node_name'] )
		{
			$this->seo_name	= Friendly::seoTitle( $values['club_node_name'] );
		}
		
		if ( !$this->_id )
		{
			$this->save();
			File::claimAttachments( 'blogs-new-blog', $this->id, NULL, 'description' );
		}
	}
	
	/**
	 * Set the permission index permissions to a specific club
	 *
	 * @param	Club	$club	The club
	 * @return  void
	 */
	public function setPermissionsToClub( Club $club ) : void
	{
		// Deliberately do nothing, Blog handles permissions differently
	}
	
	/**
	 * Fetch All Nodes in Clubs
	 *
	 * @param	string|NULL			$permissionCheck	The permission key to check for or NULl to not check permissions
	 * @param	Member|NULL	$member				The member to check permissions for or NULL for the currently logged in member
	 * @param	mixed				$where				Additional WHERE clause
	 * @return	array
	 */
	public static function clubNodes( ?string $permissionCheck='view', ?Member $member=NULL, array $where=array() ): array
	{
		$member = $member ?: Member::loggedIn();
		
		$where[] = array( 'blog_club_id IS NOT NULL' );
		
		if ( $member->modPermission('can_access_all_clubs') )
		{
			return static::nodesWithPermission( NULL, $member, $where );
		}
		else
		{
			if ( $permissionCheck === 'add' )
			{
				$statuses = array( Club::STATUS_LEADER, Club::STATUS_MODERATOR );
			}
			else
			{
				$statuses = array( Club::STATUS_LEADER, Club::STATUS_MODERATOR, Club::STATUS_MEMBER );
			}
			$where[] = array( Db::i()->in( 'status', $statuses ) );
			
			return iterator_to_array( new ActiveRecordIterator( Db::i()->select( '*', 'blog_blogs', $where )->join( 'core_clubs_memberships', array( 'club_id=blog_club_id AND member_id=?', $member->member_id ) ), get_called_class() ) );
		}
	}

	/**
	 * Get category
	 *
	 * @return	Model
	 * @throws	OutOfRangeException|BadMethodCallException
	 */
	public function category(): Model
	{
		if( !$this->category_id )
		{
			throw new OutOfRangeException;
		}

		if ( $this->category === NULL )
		{
			$this->category	= Category::load( $this->category_id );
		}

		return $this->category;
	}
	
	/**
	 * Get last comment time
	 *
	 * @note	This should return the last comment time for this node only, not for children nodes
	 * @param   Member|null    $member         MemberObject
	 * @return	DateTime|NULL
	 */
	public function getLastCommentTime( Member $member = NULL ): ?DateTime
	{
		return $this->last_edate ? DateTime::ts( $this->last_edate ) : NULL;
	}

	/**
	 * @brief   The class of the ACP \IPS\Node\Controller that manages this node type
	 */
	protected static ?string $acpController = "IPS\\calendar\\modules\\admin\\calendars\\calendars";


	/**
	 * Get the URL of the AdminCP page for this node
	 *
	 * @param string|null $do The "do" query parameter of the url (e.g. 'form', 'permissions', etc).
	 *
	 * @return Url | NULL
	 */
	public function acpUrl( ?string $do="form" ): ?Url
	{
		try
		{
			$parentCol = static::$parentNodeColumnId;
			$parent = Category::load( $this->$parentCol );
			$url = parent::acpUrl( $do );
			if ( $url !== NULL )
			{
				$this->_acpUrls[$do] = $url->setQueryString([ 'subnode' => $this->$parentCol ]);
			}
		}
		catch ( OutOfRangeException )
		{
			$this->_acpUrls[$do] = NULL;
		}
		return $this->_acpUrls[$do];
	}

	/**
	 * Build the moderation menu links
	 *
	 * @param Member|null $member
	 * @return Menu
	 */
	public function menu( Member $member = null ): Menu
	{
		$member = $member ?: Member::loggedIn();
		$menu = new Menu( name: 'manage_blog', css: 'ipsButton ipsButton--text' );

		$links = [];

		if( $this->canEdit() )
		{
			if( !$this->groupblog_ids )
			{
				$editLink = new ContentMenuLink( $this->url()->setQueryString( 'do', 'editBlog' )->csrf(), 'edit_blog' );
				$editLink->opensDialog( 'edit_blog' );
				$links[] = $editLink;
			}

			$categoryLink = new ContentMenuLink( $this->url()->setQueryString( 'do', 'manageCategories' ), 'blog_manage_entry_categories' );
			$categoryLink->opensDialog( 'blog_manage_entry_categories' );
			$links[] = $categoryLink;

			if( Settings::i()->blog_allow_rssimport )
			{
				$rssLink = new ContentMenuLink( $this->url()->setQueryString( 'do', 'rssImport' ), 'blog_rss_import' );
				$rssLink->opensDialog( 'blog_rss_import' );
				$links[] = $rssLink;
			}
		}

		if( $this->pinned AND Member::loggedIn()->modPermission( 'can_unpin_content' ) )
		{
			$links[] = new ContentMenuLink( $this->url()->setQueryString( 'do', 'changePin' )->csrf(), 'unpin_blog' );
		}
		if( !$this->pinned AND Member::loggedIn()->modPermission( 'can_pin_content' ) )
		{
			$links[] = new ContentMenuLink( $this->url()->setQueryString( 'do', 'changePin' )->csrf(), 'pin_blog' );
		}

		if( $this->canDelete() )
		{
			$deleteLink = new ContentMenuLink( $this->url()->setQueryString( 'do', 'deleteBlog' )->csrf(), 'delete_blog', 'ipsMenu_item', [
				'data-confirm' => '',
				'data-confirmMessage' => Member::loggedIn()->language()->addToStack( 'delete_blog_confirm' ),
				'data-confirmSubMessage' => Member::loggedIn()->language()->addToStack( 'delete_blog_warning' )
			] );
			$links[] = $deleteLink;
		}
		$menu->elements = $links;
		return $menu;
	}
}