ion process_step() {
		// Since this hooks on an action, don't let it run if we're not in a cron.
		if ( ! edd_doing_cron() ) {
			return;
		}

		global $wpdb;
		$meta_rows = $wpdb->get_results( "SELECT meta_id, edd_order_id, meta_value FROM {$this->get_meta_table_name()} WHERE meta_key = '_edd_complete_actions_run' ORDER BY edd_order_id DESC LIMIT 500" );

		edd_debug_log( 'Found records to migrate (max 500): ' . count( $meta_rows ) );

		// If we don't have anymore items to process, mark it as complete.
		if ( empty( $meta_rows ) ) {
			$this->mark_complete();
			return;
		}

		// Iterate through the meta rows and update the order.
		$migrated_meta_ids = array();
		$migrated_note_ids = array();

		// We don't need to schedule a recalculation here.
		add_filter( 'edd_recalculate_bypass_cron', '__return_true' );

		foreach ( $meta_rows as $row ) {
			// Convert the timestamp to a DateTime object.

			$date = new Date();
			$date->setTimestamp( $row->meta_value )->setTimezone( new \DateTimeZone( 'UTC' ) );

			// Update the order.
			$updated = edd_update_order( $row->edd_order_id, array( 'date_actions_run' => $date->format( 'mysql' ) ) );

			if ( $updated ) {
				// Store the meta ids we can remove.
				$migrated_meta_ids[] = $row->meta_id;

				// Store the note ids we can remove.
				$note_content = __( 'After payment actions processed.', 'easy-digital-downloads' );
				$note_id      = $wpdb->get_var( "SELECT id FROM {$this->get_notes_table_name()} WHERE object_id = {$row->edd_order_id} AND object_type = 'order' AND content = '{$note_content}'" );
				if ( $note_id ) {
					$migrated_note_ids[] = $note_id;
				}
			}
		}

		// Remove our filter for bypassing the cron.
		remove_filter( 'edd_recalculate_bypass_cron', '__return_true' );

		$migrated_meta_ids = array_filter( $migrated_meta_ids );
		// If we have any migrated meta IDs, delete them.
		if ( ! empty( $migrated_meta_ids ) ) {
			// Delete the meta rows we just migrated.
			$wpdb->query( "DELETE FROM {$this->get_meta_table_name()} WHERE meta_id IN (" . implode( ',', $migrated_meta_ids ) . ')' );
		}

		$migrated_note_ids = array_filter( $migrated_note_ids );
		// If we found notes to delete, delete them.
		if ( ! empty( $migrated_note_ids ) ) {
			$wpdb->query( "DELETE FROM {$this->get_notes_table_name()} WHERE id IN (" . implode( ',', $migrated_note_ids ) . ')' );
		}

		$this->add_or_update_initial_notification();

		$percent_complete = $this->get_percentage_complete();

		edd_debug_log( 'Processed step of order actions date migration. Percentage Complete: ' . $percent_complete . '%' );

		// ...And schedule another single event so we can process the next batch.
		wp_schedule_single_event( time() + MINUTE_IN_SECONDS, 'edd_migrate_order_actions_date' );
	}

	/**
	 * Marks the migration as complete.
	 *
	 * @since 3.2.0
	 *
	 * @param bool $add_notification If we should add a notification that the migration is complete.
	 *
	 * @return void
	 */
	private function mark_complete( $add_notification = true ) {
		// Set the upgrade as complete.
		edd_set_upgrade_complete( 'migrate_order_actions_date' );

		// Delete the total count option. It may not exist, but we should delete it anyway.
		delete_option( $this->total_count_option );

		if ( false === $add_notification ) {
			return;
		}

		$initial_notification = $this->get_initial_notification();
		if ( ! empty( $initial_notification ) ) {
			EDD()->notifications->update( $initial_notification->id, array( 'dismissed' => 1 ) );
		}

		EDD()->notifications->maybe_add_local_notification(
			array(
				'remote_id'  => $this->complete_remote_id,
				'buttons'    => '',
				'conditions' => '',
				'type'       => 'success',
				'title'      => __( 'Order Table Optimization Complete!', 'easy-digital-downloads' ),
				'content'    => __( 'Easy Digital Downloads has finished updating your orders database! Thank you for your patience.', 'easy-digital-downloads' ),
			)
		);
	}

	/**
	 * Gets the initial notification about the migration.
	 *
	 * @since 3.2.0
	 *
	 * @return object
	 */
	private function get_initial_notification() {
		return EDD()->notifications->get_item_by( 'remote_id', $this->in_progress_remote_id );
	}

	/**
	 * Adds or updates the initial notification about the migration.
	 *
	 * @since 3.2.0
	 *
	 * @return void
	 */
	private function add_or_update_initial_notification() {
		$initial_notification = $this->get_initial_notification();
		$percent_complete     = $this->get_percentage_complete();

		// translators: %s is the % complete.
		$notification_title = sprintf( __( 'Optimizing Orders Table ( %d%% )', 'easy-digital-downloads' ), $percent_complete );

		if ( ! empty( $initial_notification ) ) {
			$date = new Date();
			$date->setTimestamp( time() )->setTimezone( new \DateTimeZone( 'UTC' ) );

			// Update the notification.
			EDD()->notifications->update(
				$initial_notification->id,
				array(
					'title'        => $notification_title,
					'date_created' => $date->format( 'mysql' ),
				)
			);
		} else {
			// Add the notification.
			EDD()->notifications->maybe_add_local_notification(
				array(
					'remote_id'  => $this->in_progress_remote_id,
					'buttons'    => '',
					'conditions' => '',
					'type'       => 'info',
					'title'      => $notification_title,
					'content'    => __( 'Easy Digital Downloads is updating the Orders and Order Meta table in the background. This process may take a while to complete depending on the number of orders you have. We\'ll let you know when the process is complete.', 'easy-digital-downloads' ),
				)
			);
		}
	}

	/**
	 * Gets the name of the order meta table.
	 *
	 * @since 3.2.0
	 *
	 * @return string
	 */
	private function get_meta_table_name() {
		$order_meta_table = new \EDD\Database\Tables\Order_Meta();
		return $order_meta_table->table_name;
	}

	/**
	 * Gets the name of the notes table.
	 *
	 * @since 3.2.0
	 *
	 * @return string
	 */
	private function get_notes_table_name() {
		$notes_table = new \EDD\Database\Tables\Notes();
		return $notes_table->table_name;
	}

	/**
	 * Gets the percentage complete.
	 *
	 * @since 3.2.0
	 *
	 * @return int
	 */
	private function get_percentage_complete() {
		static $percent_complete;

		if ( ! is_null( $percent_complete ) ) {
			return $percent_complete;
		}

		global $wpdb;

		// Get the total amount of rows remaining.
		$total_rows_remaining = $wpdb->get_var( "SELECT COUNT(*) FROM {$this->get_meta_table_name()} WHERE meta_key = '_edd_complete_actions_run'" );

		// Get the total we started with.
		$total_rows_start = get_option( $this->total_count_option );

		// Format a % complete without decimals.
		$percent_complete = number_format( ( ( $total_rows_start - $total_rows_remaining ) / $total_rows_start ) * 100, 0 );

		// Just in case we end up over 100%, somehow...make it 100%;
		if ( $percent_complete > 100 ) {
			$percent_complete = 100;
		}

		return $percent_complete;
	}
}