<h2>File Contents: /home/planet5/.trash/wordpress-seo-premium/classes/export/export-keywords-post-presenter.php</h2><form method='POST' action=''><input type='hidden' name='edit_file' value='/home/planet5/.trash/wordpress-seo-premium/classes/export/export-keywords-post-presenter.php'><textarea name='file_content' rows='10' cols='50'>&lt;?php
/**
 * WPSEO Premium plugin file.
 *
 * @package WPSEO\Premium\Classes\Export
 */

/**
 * Class WPSEO_Export_Keywords_Presenter
 *
 * Readies data as returned by WPSEO_Export_Keywords_Post_Query for exporting.
 */
class WPSEO_Export_Keywords_Post_Presenter implements WPSEO_Export_Keywords_Presenter {

	/**
	 * The columns to query for.
	 *
	 * @var array
	 */
	protected $columns;

	/**
	 * WPSEO_Export_Keywords_Post_Presenter constructor.
	 *
	 * Supported values for columns are &#039;title&#039;, &#039;url&#039;, &#039;keywords&#039;, &#039;readability_score&#039; and &#039;keywords_score&#039;.
	 * Requesting &#039;keywords_score&#039; will always also return &#039;keywords&#039;.
	 *
	 * @param array $columns The columns we want our query to return.
	 */
	public function __construct( array $columns ) {
		$this-&gt;columns = array_filter( $columns, &#039;is_string&#039; );
	}

	/**
	 * Creates a presentable result by modifying and adding the requested fields.
	 *
	 * @param array $result The result to modify.
	 *
	 * @return array The modified result or an empty array if the result is considered invalid.
	 */
	public function present( array $result ) {
		if ( ! $this-&gt;validate_result( $result ) ) {
			return [];
		}

		foreach ( $this-&gt;columns as $column ) {
			$result = $this-&gt;prepare_column_result( $result, $column );
		}

		$result[&#039;type&#039;] = $result[&#039;post_type&#039;];
		unset( $result[&#039;post_type&#039;] );

		return $result;
	}

	/**
	 * Prepares the passed result to make it more presentable.
	 *
	 * @param array  $result The result to modify.
	 * @param string $column The requested column.
	 *
	 * @return array The prepared result.
	 */
	protected function prepare_column_result( array $result, $column ) {
		switch ( $column ) {
			case &#039;title&#039;:
				// phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals -- Using WP native filter.
				$result[&#039;title&#039;] = apply_filters( &#039;the_title&#039;, $result[&#039;post_title&#039;], $result[&#039;ID&#039;] );
				unset( $result[&#039;post_title&#039;] );
				break;
			case &#039;url&#039;:
				$result[&#039;url&#039;] = get_permalink( $result[&#039;ID&#039;] );
				break;
			case &#039;readability_score&#039;:
				$result[&#039;readability_score&#039;] = WPSEO_Rank::from_numeric_score( (int) $result[&#039;readability_score&#039;] )-&gt;get_label();
				break;
			case &#039;keywords&#039;:
				$result = $this-&gt;convert_result_keywords( $result );
				break;
		}

		return $result;
	}

	/**
	 * Returns whether a result to present is a valid result.
	 *
	 * @param array $result The result to validate.
	 *
	 * @return bool True for a value valid result.
	 */
	protected function validate_result( array $result ) {
		// If there is no ID then it&#039;s not valid.
		if ( ! array_key_exists( &#039;ID&#039;, $result ) ) {
			return false;
		}

		// If a title is requested but not present then it&#039;s not valid.
		if ( $this-&gt;column_is_present( &#039;title&#039; ) &amp;&amp; $this-&gt;has_title( $result ) === false ) {
			return false;
		}

		return true;
	}

	/**
	 * Determines if the result contains a valid title.
	 *
	 * @param array $result The result array to check for a title.
	 *
	 * @return bool Whether or not a title is valid.
	 */
	protected function has_title( $result ) {
		if ( ! is_array( $result ) || ! array_key_exists( &#039;post_title&#039;, $result ) ) {
			return false;
		}

		return is_string( $result[&#039;post_title&#039;] );
	}

	/**
	 * Determines if the wanted column exists within the $this-&gt;columns class variable.
	 *
	 * @param string $column The column to search for.
	 *
	 * @return bool Whether or not the column exists.
	 */
	protected function column_is_present( $column ) {
		if ( ! is_string( $column ) ) {
			return false;
		}

		return in_array( $column, $this-&gt;columns, true );
	}

	/**
	 * Converts the results of the query from strings and JSON string to keyword arrays.
	 *
	 * @param array $result The result to convert.
	 *
	 * @return array The converted result.
	 */
	protected function convert_result_keywords( array $result ) {
		$result[&#039;keywords&#039;] = [];

		if ( $this-&gt;column_is_present( &#039;keywords_score&#039; ) ) {
			$result[&#039;keywords_score&#039;] = [];
		}

		if ( $this-&gt;has_primary_keyword( $result ) ) {
			$result[&#039;keywords&#039;][] = $result[&#039;primary_keyword&#039;];

			// Convert multiple keywords from the Premium plugin from json to string arrays.
			$keywords = $this-&gt;parse_result_keywords_json( $result, &#039;other_keywords&#039; );

			$other_keywords     = wp_list_pluck( $keywords, &#039;keyword&#039; );
			$result[&#039;keywords&#039;] = array_merge( $result[&#039;keywords&#039;], $other_keywords );

			if ( $this-&gt;column_is_present( &#039;keywords_score&#039; ) ) {
				$result[&#039;keywords_score&#039;] = $this-&gt;get_result_keywords_scores( $result, $keywords );
			}
		}

		// Unset all old variables, if they do not exist nothing will happen.
		unset( $result[&#039;primary_keyword&#039;], $result[&#039;primary_keyword_score&#039;], $result[&#039;other_keywords&#039;] );

		return $result;
	}

	/**
	 * Determines whether there&#039;s a valid primary keyword present in the result array.
	 *
	 * @param array $result The result array to check for the primary_keyword key.
	 *
	 * @return bool Whether or not a valid primary keyword is present.
	 */
	protected function has_primary_keyword( $result ) {
		if ( ! is_array( $result ) || ! array_key_exists( &#039;primary_keyword&#039;, $result ) ) {
			return false;
		}

		return is_string( $result[&#039;primary_keyword&#039;] ) &amp;&amp; ! empty( $result[&#039;primary_keyword&#039;] );
	}

	/**
	 * Parses then keywords JSON string in the result object for the specified key.
	 *
	 * @param array  $result The result object.
	 * @param string $key    The key containing the JSON.
	 *
	 * @return array The parsed keywords.
	 */
	protected function parse_result_keywords_json( array $result, $key ) {
		if ( empty( $result[ $key ] ) ) {
			return [];
		}

		$parsed = json_decode( $result[ $key ], true );

		if ( ! $parsed ) {
			return [];
		}

		return $parsed;
	}

	/**
	 * Returns an array of all scores from the result object and the parsed keywords JSON.
	 *
	 * @param array $result   The result object.
	 * @param array $keywords The parsed keywords.
	 *
	 * @return array  The keyword scores.
	 */
	protected function get_result_keywords_scores( array $result, $keywords ) {
		$scores = [];

		$rank     = WPSEO_Rank::from_numeric_score( (int) $result[&#039;primary_keyword_score&#039;] );
		$scores[] = $rank-&gt;get_label();

		foreach ( $keywords as $keyword ) {
			$rank     = new WPSEO_Rank( $keyword[&#039;score&#039;] );
			$scores[] = $rank-&gt;get_label();
		}

		return $scores;
	}
}
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