bp_core_deprecated_email_actions( bool|WP_Error $delivery_status, BP_Email $email )

function bp_core_deprecated_email_actions( $delivery_status, $email ) {
	$pre_2_5_emails = array(
		'activity-comment',
		'activity-comment-author',
		'core-user-registration',
		'core-user-registration-with-blog',
		'friends-request',
		'friends-request-accepted',
		'groups-details-updated',
		'groups-invitation',
		'groups-member-promoted',
		'groups-membership-request',
		'groups-membership-request-accepted',
		'groups-membership-request-rejected',
		'messages-unread',
		'settings-verify-email-change',
	);

	remove_action( 'bp_send_email_success', 'bp_core_deprecated_email_actions', 20 );
	$email_content = $email->get( 'content' );
	$email_subject = $email->get( 'subject' );
	$email_type    = $email->get( 'type' );
	$tokens        = $email->get( 'tokens' );
	add_action( 'bp_send_email_success', 'bp_core_deprecated_email_actions', 20, 2 );

	// Backpat for pre-2.5 emails only.
	if ( ! in_array( $email_type, $pre_2_5_emails, true ) ) {
		return;
	}

	if ( $email_type === 'activity-comment' ) {
		/**
		 * Fires after the sending of a reply to an update email notification.
		 *
		 * @since BuddyPress 1.5.0
		 * @deprecated BuddyPress 2.5.0 Use the filters in BP_Email. $params argument unset and deprecated.
		 *
		 * @param int    $user_id       ID of the original activity item author.
		 * @param string $email_subject Email notification subject text.
		 * @param string $email_content Email notification message text.
		 * @param int    $comment_id    ID for the newly received comment.
		 * @param int    $commenter_id  ID of the user who made the comment.
		 * @param array  $deprecated    Removed in 2.5; now an empty array.
		 */
		do_action( 'bp_activity_sent_reply_to_update_email', $tokens['original_activity.user_id'], $email_subject, $email_content, $tokens['comment.id'], $tokens['commenter.id'], array() );

	} elseif ( $email_type === 'activity-comment-author' ) {
		/**
		 * Fires after the sending of a reply to a reply email notification.
		 *
		 * @since BuddyPress 1.5.0
		 * @deprecated BuddyPress 2.5.0 Use the filters in BP_Email. $params argument unset and deprecated.
		 *
		 * @param int    $user_id       ID of the parent activity item author.
		 * @param string $email_subject Email notification subject text.
		 * @param string $email_content Email notification message text.
		 * @param int    $comment_id    ID for the newly received comment.
		 * @param int    $commenter_id  ID of the user who made the comment.
		 * @param array  $deprecated    Removed in 2.5; now an empty array.
		 */
		do_action( 'bp_activity_sent_reply_to_reply_email', $tokens['parent-comment-user.id'], $email_subject, $email_content, $tokens['comment.id'], $tokens['commenter.id'], array() );

	} elseif ( $email_type === 'core-user-registration' ) {
		if ( ! empty( $tokens['user.id'] ) ) {
			/**
			 * Fires after the sending of activation email to a newly registered user.
			 *
			 * @since BuddyPress 1.5.0
			 *
			 * @param string $email_subject   Subject for the sent email.
			 * @param string $email_content   Message for the sent email.
			 * @param int    $user_id         ID of the new user.
			 * @param string $recipient_email Email address of the new user.
			 * @param string $key             Activation key.
			 */
			do_action( 'bp_core_sent_user_validation_email', $email_subject, $email_content, $tokens['user.id'], $tokens['recipient.email'], $tokens['key'] );

		} else {
			/**
			 * Fires after the sending of the notification to new users for successful registration without blog.
			 *
			 * @since BuddyPress 1.5.0
			 * @deprecated BuddyPress 2.5.0 Use the filters in BP_Email. $meta argument unset and deprecated.
			 *
			 * @param string $admin_email        Admin Email address for the site.
			 * @param string $email_subject      Subject used in the notification email.
			 * @param string $email_content      Message used in the notification email.
			 * @param string $recipient_username The user's login name.
			 * @param string $recipient_email    The user's email address.
			 * @param string $key                The activation key created in wpmu_signup_blog().
			 * @param array  $meta               Removed in 2.5; now an empty array.
			 */
			do_action( 'bp_core_sent_user_signup_email', bp_get_option( 'admin_email' ), $email_subject, $email_content, $tokens['recipient.username'], $tokens['recipient.email'], $tokens['key'], array() );
		}

	} elseif ( $email_type === 'core-user-registration-with-blog' ) {
		/**
		 * Fires after the sending of the notification to new users for successful registration with blog.
		 *
		 * @since BuddyPress 1.5.0
		 * @deprecated BuddyPress 2.5.0 Use the filters in BP_Email. $meta argument unset and deprecated.
		 *
		 * @param string $admin_email        Admin Email address for the site.
		 * @param string $email_subject      Subject used in the notification email.
		 * @param string $email_content      Message used in the notification email.
		 * @param string $domain             The new blog domain.
		 * @param string $path               The new blog path.
		 * @param string $title              The site title.
		 * @param string $recipient_username The user's login name.
		 * @param string $recipient_email    The user's email address.
		 * @param string $key                The activation key created in wpmu_signup_blog().
		 * @param array  $meta               Removed in 2.5; now an empty array.
		 */
		do_action( 'bp_core_sent_blog_signup_email', bp_get_option( 'admin_email' ), $email_subject, $email_content, $tokens['domain'], $tokens['path'], $tokens['title'], $tokens['recipient.username'], $tokens['recipient.email'], $tokens['key_blog'], array() );

	} elseif ( $email_type === 'friends-request' ) {
		/**
		 * Fires after the new friend request email is sent.
		 *
		 * @since BuddyPress 1.5.0
		 * @deprecated BuddyPress 2.5.0 Use the filters in BP_Email.
		 *
		 * @param int    $friend_id     ID of the request recipient.
		 * @param string $email_subject Text for the friend request subject field.
		 * @param string $email_content Text for the friend request message field.
		 * @param int    $friendship_id ID of the friendship object.
		 * @param int    $initiator_id  ID of the friendship requester.
		 */
		do_action( 'bp_friends_sent_request_email', $tokens['friend.id'], $email_subject, $email_content, $tokens['friendship.id'], $tokens['initiator.id'] );

	} elseif ( $email_type === 'friends-request-accepted' ) {
		/**
		 * Fires after the connection request accepted email is sent.
		 *
		 * @since BuddyPress 1.5.0
		 * @deprecated BuddyPress 2.5.0 Use the filters in BP_Email.
		 *
		 * @param int    $initiator_id  ID of the friendship requester.
		 * @param string $email_subject Text for the friend request subject field.
		 * @param string $email_content Text for the friend request message field.
		 * @param int    $friendship_id ID of the friendship object.
		 * @param int    $friend_id     ID of the request recipient.
		 */
		do_action( 'bp_friends_sent_accepted_email', $tokens['initiator.id'], $email_subject, $email_content, $tokens['friendship.id'], $tokens['friend.id'] );

	} elseif ( $email_type === 'groups-invitation' ) {
		/**
		 * Fires after the notification is sent that a member has been invited to a group.
		 *
		 * @since BuddyPress 1.5.0
		 * @deprecated BuddyPress 2.5.0 Use the filters in BP_Email.
		 *
		 * @param int             $invited_user_id  ID of the user who was invited.
		 * @param string          $email_subject    Email notification subject text.
		 * @param string          $email_content    Email notification message text.
		 * @param BP_Groups_Group $group            Group object.
		 */
		do_action( 'bp_groups_sent_invited_email', $tokens['inviter.id'], $email_subject, $email_content, $tokens['group'] );

	} elseif ( $email_type === 'groups-member-promoted' ) {
		/**
		 * Fires after the notification is sent that a member has been promoted.
		 *
		 * @since BuddyPress 1.5.0
		 * @deprecated BuddyPress 2.5.0 Use the filters in BP_Email.
		 *
		 * @param int    $user_id       ID of the user who was promoted.
		 * @param string $email_subject Email notification subject text.
		 * @param string $email_content Email notification message text.
		 * @param int    $group_id      ID of the group that the user is a member of.
		 */
		do_action( 'bp_groups_sent_promoted_email', $tokens['user.id'], $email_subject, $email_content, $tokens['group.id'] );

	} elseif ( $email_type === 'groups-membership-request' ) {
		/**
		 * Fires after the notification is sent that a member has requested group membership.
		 *
		 * @since BuddyPress 1.5.0
		 * @deprecated BuddyPress 2.5.0 Use the filters in BP_Email.
		 *
		 * @param int    $admin_id           ID of the group administrator.
		 * @param string $email_subject      Email notification subject text.
		 * @param string $email_content      Email notification message text.
		 * @param int    $requesting_user_id ID of the user requesting membership.
		 * @param int    $group_id           ID of the group receiving membership request.
		 * @param int    $membership_id      ID of the group membership object.
		 */
		do_action( 'bp_groups_sent_membership_request_email', $tokens['admin.id'], $email_subject, $email_content, $tokens['requesting-user.id'], $tokens['group.id'], $tokens['membership.id'] );

	} elseif ( $email_type === 'groups-membership-request-accepted' || $email_type === 'groups-membership-request-rejected' ) {
		/**
		 * Fires after the notification is sent that a membership has been approved.
		 *
		 * @since BuddyPress 1.5.0
		 * @deprecated BuddyPress 2.5.0 Use the filters in BP_Email.
		 *
		 * @param int    $requesting_user_id ID of the user whose membership was approved.
		 * @param string $email_subject      Email notification subject text.
		 * @param string $email_content      Email notification message text.
		 * @param int    $group_id           ID of the group that was joined.
		 */
		do_action( 'bp_groups_sent_membership_approved_email', $tokens['requesting-user.id'], $email_subject, $email_content, $tokens['group.id'] );
	}
}