<?php
/**
 * HTML of a report, translated from codes and arguments (never from the
 * English texts the domain renders). No overall verdict: a numeric summary,
 * findings grouped by control, counters, and the "Not looked at" section.
 *
 * @package Timaub\AfterHackChecklist
 */

namespace Timaub\AfterHackChecklist\WordPress;

use Timaub\AfterHackChecklist\Domain\Catalogue;

defined( 'ABSPATH' ) || exit;

/**
 * Translated report and its HTML.
 */
final class Renderer {

	/** Titles of the ten controls. */
	public static function control_titles() {
		return array(
			1  => __( '1. Core files', 'aftersweep' ),
			2  => __( '2. Plugins', 'aftersweep' ),
			3  => __( '3. Uploads folder', 'aftersweep' ),
			4  => __( '4. Must-use plugins and drop-ins', 'aftersweep' ),
			5  => __( '5. Accounts with high capabilities', 'aftersweep' ),
			6  => __( '6. .htaccess and PHP settings files', 'aftersweep' ),
			7  => __( '7. Contents', 'aftersweep' ),
			8  => __( '8. Scheduled tasks', 'aftersweep' ),
			9  => __( '9. Settings', 'aftersweep' ),
			10 => __( '10. Not looked at', 'aftersweep' ),
		);
	}

	/** Labels of the levels. */
	public static function levels() {
		return array(
			'anomaly'     => __( 'Anomaly', 'aftersweep' ),
			'suspect'     => __( 'Suspect', 'aftersweep' ),
			'to_identify' => __( 'To identify', 'aftersweep' ),
		);
	}

	/** Labels of the silent counters. */
	public static function counted_labels() {
		return array(
			'plugin_extra_file'     => __( 'Files other than PHP added to a plugin folder', 'aftersweep' ),
			'plugin_silence_index'  => __( 'Small index.php files running no code in a plugin folder', 'aftersweep' ),
			'uploads_silence_index' => __( 'Empty index.php files in the uploads folder', 'aftersweep' ),
			'cron_attributed'       => __( 'Scheduled events attributed to the core, an active plugin or the active theme', 'aftersweep' ),
			'option_plugin_rules'   => __( 'Options where an installed firewall keeps its detection rules', 'aftersweep' ),
		);
	}

	/**
	 * Translated summary line.
	 *
	 * @param array $report Report::toArray().
	 * @return string Plain text.
	 */
	public static function summary_text( array $report ) {
		$s = $report['summary'];
		return Catalogue::render( Messages::summary(), array( $s['anomaly'], $s['suspect'], $s['to_identify'], $s['not_looked'] ) );
	}

	/**
	 * Translated texts of one finding.
	 *
	 * @param array $f Finding::toArray().
	 * @return array{compared:string, action:string, items:string[]}
	 */
	public static function finding_texts( array $f ) {
		$all = Messages::findings();
		$tpl = isset( $all[ $f['code'] ] ) ? $all[ $f['code'] ] : array( (string) $f['compared'], (string) $f['action'] );
		$out = array(
			'compared' => Catalogue::render( $tpl[0], $f['args'] ),
			'action'   => Catalogue::render( $tpl[1], $f['args'] ),
			'items'    => array(),
		);
		if ( ! empty( $f['items'] ) ) {
			$member = '';
			foreach ( Catalogue::AGGREGATES as $code => $def ) {
				if ( $def[0] === $f['code'] ) {
					$member = $code;
				}
			}
			foreach ( $f['items'] as $item ) {
				$out['items'][] = isset( $all[ $member ] ) ? Catalogue::render( $all[ $member ][0], (array) $item['args'] ) : (string) $item['subject'];
			}
		}
		return $out;
	}

	/**
	 * Lines "N more findings with the code ..." of one control (D-13).
	 *
	 * @param array $report  Report::toArray().
	 * @param int   $control Control number.
	 * @return string[]
	 */
	public static function capped_lines( array $report, $control ) {
		$out = array();
		foreach ( isset( $report['capped'] ) ? (array) $report['capped'] : array() as $code => $n ) {
			if ( isset( Catalogue::FINDINGS[ $code ] ) && Catalogue::FINDINGS[ $code ][0] === (int) $control ) {
				$out[] = Catalogue::render( Messages::capped(), array( number_format_i18n( (int) $n ), $code ) );
			}
		}
		return $out;
	}

	/**
	 * Translated text of one "Not looked at" line.
	 *
	 * @param array $e NotLookedEntry::toArray().
	 * @return string
	 */
	public static function not_looked_text( array $e ) {
		$all = Messages::not_looked();
		return isset( $all[ $e['code'] ] ) ? Catalogue::render( $all[ $e['code'] ], $e['args'] ) : (string) $e['text'];
	}

	/**
	 * Report::toArray() with every text translated in the current locale: each finding keeps
	 * code and args and carries compared, action, items[].text and control_title; each
	 * not_looked entry carries text; summary_text is translated; control_titles added.
	 *
	 * @param array $report Report::toArray() (English texts of the domain).
	 * @return array
	 */
	public static function translate( array $report ) {
		$titles = self::control_titles();
		foreach ( $report['controls'] as $i => $list ) {
			foreach ( $list as $n => $f ) {
				$t                  = self::finding_texts( $f );
				$f['compared']      = $t['compared'];
				$f['action']        = $t['action'];
				$f['control_title'] = isset( $titles[ $f['control'] ] ) ? $titles[ $f['control'] ] : '';
				foreach ( $t['items'] as $k => $text ) {
					$f['items'][ $k ]['text'] = $text;
				}
				$report['controls'][ $i ][ $n ] = $f;
			}
		}
		foreach ( $report['not_looked'] as $n => $e ) {
			$report['not_looked'][ $n ]['text'] = self::not_looked_text( $e );
		}
		$report['summary_text']   = self::summary_text( $report );
		$report['control_titles'] = $titles;
		return $report;
	}

	/**
	 * Whole report.
	 *
	 * @param array $last ahcl_last_report.
	 * @return string HTML, escaped.
	 */
	public static function report( array $last ) {
		$report  = $last['report'];
		$context = $last['context'];
		$levels  = self::levels();
		$titles  = self::control_titles();
		ob_start();
		?>
		<div class="ahcl-report">
			<h2><?php esc_html_e( 'Report', 'aftersweep' ); ?></h2>
			<p class="ahcl-meta">
				<?php
				echo esc_html(
					sprintf(
						/* translators: 1: date and time of the end of the pass, 2: reference date. */
						__( 'Pass finished on %1$s; reference date: %2$s.', 'aftersweep' ),
						wp_date( get_option( 'date_format' ) . ' ' . get_option( 'time_format' ), (int) $context['finished_at'] ),
						$context['reference_date']
					)
				);
				echo ' ';
				echo esc_html(
					$context['checksums_consented']
						? __( 'Checksums downloaded from WordPress.org for this pass.', 'aftersweep' )
						: __( 'Checksums not downloaded for this pass.', 'aftersweep' )
				);
				?>
			</p>
			<p class="ahcl-summary"><strong><?php echo esc_html( self::summary_text( $report ) ); ?></strong></p>
			<?php for ( $i = 1; $i <= 9; $i++ ) : ?>
				<?php $list = isset( $report['controls'][ $i ] ) ? $report['controls'][ $i ] : array(); ?>
				<section class="ahcl-control">
					<h3><?php echo esc_html( $titles[ $i ] ); ?></h3>
					<?php if ( ! $list ) : ?>
						<p class="ahcl-none"><?php esc_html_e( 'No finding for this control.', 'aftersweep' ); ?></p>
					<?php else : ?>
						<ul class="ahcl-findings">
							<?php foreach ( $list as $f ) : ?>
								<?php $t = self::finding_texts( $f ); ?>
								<li class="ahcl-finding ahcl-<?php echo esc_attr( $f['level'] ); ?>">
									<span class="ahcl-level"><?php echo esc_html( isset( $levels[ $f['level'] ] ) ? $levels[ $f['level'] ] : $f['level'] ); ?></span>
									<code class="ahcl-subject"><?php echo esc_html( $f['subject'] ); ?></code>
									<p class="ahcl-compared"><?php echo esc_html( $t['compared'] ); ?></p>
									<?php if ( '' !== $f['excerpt'] ) : ?>
										<pre class="ahcl-excerpt"><?php echo esc_html( $f['excerpt'] ); ?></pre>
									<?php endif; ?>
									<?php if ( $t['items'] ) : ?>
										<ul class="ahcl-items">
											<?php foreach ( $t['items'] as $item ) : ?>
												<li><?php echo esc_html( $item ); ?></li>
											<?php endforeach; ?>
										</ul>
									<?php endif; ?>
									<?php if ( '' !== $t['action'] ) : ?>
										<p class="ahcl-action"><?php echo esc_html( $t['action'] ); ?></p>
									<?php endif; ?>
								</li>
							<?php endforeach; ?>
						</ul>
					<?php endif; ?>
					<?php foreach ( self::capped_lines( $report, $i ) as $line ) : ?>
						<p class="ahcl-capped"><?php echo esc_html( $line ); ?></p>
					<?php endforeach; ?>
				</section>
			<?php endfor; ?>
			<?php if ( ! empty( $report['counted'] ) ) : ?>
				<section class="ahcl-counted">
					<h3><?php esc_html_e( 'Seen and counted, without a finding', 'aftersweep' ); ?></h3>
					<ul>
						<?php $labels = self::counted_labels(); ?>
						<?php foreach ( $report['counted'] as $code => $n ) : ?>
							<li><?php echo esc_html( ( isset( $labels[ $code ] ) ? $labels[ $code ] : $code ) . ': ' . number_format_i18n( (int) $n ) ); ?></li>
						<?php endforeach; ?>
					</ul>
				</section>
			<?php endif; ?>
			<section class="ahcl-control ahcl-not-looked">
				<h3><?php echo esc_html( $titles[10] ); ?></h3>
				<ul>
					<?php foreach ( $report['not_looked'] as $e ) : ?>
						<li>
							<?php echo esc_html( self::not_looked_text( $e ) ); ?>
							<?php if ( ! empty( $e['items'] ) ) : ?>
								<ul class="ahcl-items">
									<?php foreach ( $e['items'] as $item ) : ?>
										<li><code><?php echo esc_html( $item ); ?></code></li>
									<?php endforeach; ?>
								</ul>
							<?php endif; ?>
						</li>
					<?php endforeach; ?>
				</ul>
			</section>
			<p class="ahcl-pro">
				<?php esc_html_e( 'Aftersweep Pro keeps a snapshot of this site, compares later passes with it and runs them on a schedule:', 'aftersweep' ); ?>
				<a href="https://timaub.fr/after-hack-checklist/" target="_blank" rel="noopener noreferrer">timaub.fr/after-hack-checklist</a>
			</p>
			<?php
			/**
			 * After the report on the page (Pro section, export button).
			 *
			 * @param array $report Report::toArray().
			 */
			do_action( 'ahcl_after_report', $report );
			?>
		</div>
		<?php
		return (string) ob_get_clean();
	}
}