$score['count'] / $total );
		}

		return $division;
	}

	/**
	 * Get all SEO ranks and data associated with them.
	 *
	 * @return array An array of SEO scores and associated data.
	 */
	private function get_seo_scores_with_post_count() {
		$ranks = WPSEO_Rank::get_all_ranks();

		return array_map( [ $this, 'map_rank_to_widget' ], $ranks );
	}

	/**
	 * Converts a rank to data usable in the dashboard widget.
	 *
	 * @param WPSEO_Rank $rank The rank to map.
	 *
	 * @return array The mapped rank.
	 */
	private function map_rank_to_widget( WPSEO_Rank $rank ) {
		return [
			'seo_rank' => $rank->get_rank(),
			'label'    => $this->get_label_for_rank( $rank ),
			'count'    => $this->statistics->get_post_count( $rank ),
			'link'     => $this->get_link_for_rank( $rank ),
		];
	}

	/**
	 * Returns a dashboard widget label to use for a certain rank.
	 *
	 * @param WPSEO_Rank $rank The rank to return a label for.
	 *
	 * @return string The label for the rank.
	 */
	private function get_label_for_rank( WPSEO_Rank $rank ) {
		return $this->labels[ $rank->get_rank() ];
	}

	/**
	 * Determines the labels for the various scoring ranks that are known within Yoast SEO.
	 *
	 * @return array Array containing the translatable labels.
	 */
	private function labels() {
		return [
			WPSEO_Rank::NO_FOCUS => sprintf(
				/* translators: %1$s expands to an opening strong tag, %2$s expands to a closing strong tag */
				__( 'Posts %1$swithout%2$s a focus keyphrase', 'wordpress-seo' ),
				'<strong>',
				'</strong>'
			),
			WPSEO_Rank::BAD      => sprintf(
				/* translators: %s expands to the score */
				__( 'Posts with the SEO score: %s', 'wordpress-seo' ),
				'<strong>' . __( 'Needs improvement', 'wordpress-seo' ) . '</strong>'
			),
			WPSEO_Rank::OK       => sprintf(
				/* translators: %s expands to the score */
				__( 'Posts with the SEO score: %s', 'wordpress-seo' ),
				'<strong>' . __( 'OK', 'wordpress-seo' ) . '</strong>'
			),
			WPSEO_Rank::GOOD     => sprintf(
				/* translators: %s expands to the score */
				__( 'Posts with the SEO score: %s', 'wordpress-seo' ),
				'<strong>' . __( 'Good', 'wordpress-seo' ) . '</strong>'
			),
			WPSEO_Rank::NO_INDEX => __( 'Posts that should not show up in search results', 'wordpress-seo' ),
		];
	}

	/**
	 * Filter items if they have a count of zero.
	 *
	 * @param array $item The item to potentially filter out.
	 *
	 * @return bool Whether or not the count is zero.
	 */
	private function filter_items( $item ) {
		return $item['count'] !== 0;
	}

	/**
	 * Returns a link for the overview of posts of a certain rank.
	 *
	 * @param WPSEO_Rank $rank The rank to return a link for.
	 *
	 * @return string The link that shows an overview of posts with that rank.
	 */
	private function get_link_for_rank( WPSEO_Rank $rank ) {
		if ( current_user_can( 'edit_others_posts' ) === false ) {
			return esc_url( admin_url( 'edit.php?post_status=publish&post_type=post&seo_filter=' . $rank->get_rank() . '&author=' . get_current_user_id() ) );
		}

		return esc_url( admin_url( 'edit.php?post_status=publish&post_type=post&seo_filter=' . $rank->get_rank() ) );
	}
}