BP_REST_Document_Endpoint::get_document_current_user_permissions( BP_Document $document, array $request )

	protected function get_document_current_user_permissions( $document, $request ) {
		$retval = array(
			'download'           => 0,
			'copy_download_link' => 0,
			'edit_privacy'       => 0,
			'edit_post_privacy'  => 0,
			'rename'             => 0,
			'move'               => 0,
			'delete'             => 0,
		);

		$document_privacy = array();

		if ( ! empty( $document->attachment_id ) ) {
			$document_privacy = bp_document_user_can_manage_document( $document->id, bp_loggedin_user_id() );
		} else {
			$document_privacy = bp_document_user_can_manage_folder( $document->id, bp_loggedin_user_id() );
		}

		if ( ! empty( $document_privacy ) ) {
			if ( isset( $document_privacy['can_download'] ) && true === (bool) $document_privacy['can_download'] ) {
				$retval['download']           = 1;
				$retval['copy_download_link'] = 1;
			}

			if ( isset( $document_privacy['can_manage'] ) && true === (bool) $document_privacy['can_manage'] ) {
				$retval['rename'] = 1;
				$retval['delete'] = 1;

				if ( 0 === (int) $document->group_id && 0 === (int) $document->parent ) {
					if ( ! empty( $document->attachment_id ) ) {
						$child_activity = get_post_meta( $document->attachment_id, 'bp_document_activity_id', true );
						if ( $child_activity ) {
							$parent_activity_id = get_post_meta( $document->attachment_id, 'bp_document_parent_activity_id', true );
							if ( bp_is_active( 'activity' ) ) {
								$retval['edit_post_privacy'] = $parent_activity_id;
							} else {
								$retval['edit_post_privacy'] = $document->activity_id;
							}
						}
					} else {
						$retval['edit_privacy'] = 1;
					}
				}
			}

			if ( isset( $document_privacy['can_add'] ) && true === (bool) $document_privacy['can_add'] ) {
				$retval['move'] = 1;
			}
		}

		if (
			isset( $request['support'] )
			&& (
				'activity' === $request['support']
				|| 'forums' === $request['support']
				|| 'message' === $request['support']
			)
		) {
			unset( $retval['rename'] );

			if (
				'activity' === $request['support']
				|| 'message' === $request['support']
				|| 'forums' === $request['support']
			) {
				unset( $retval['edit_privacy'] );
				unset( $retval['edit_post_privacy'] );
			}

			if ( 'message' === $request['support'] ) {
				unset( $retval['move'] );
				unset( $retval['delete'] );
			}

			if ( 'forums' === $request['support'] ) {
				unset( $retval['move'] );
			}
		}

		return $retval;
	}