<?php

global $wp_object_cache;

$connection = $wp_object_cache->connection();
$info = $connection->command('info', ['commandstats', 'commandstats']);

$stats = [];

if (is_array($info)) {
    foreach ($info as $key => $value) {
        $command = strtoupper(str_replace(['cmdstat_', '|'], ['', ' '], $key));

        $stats[$command] = array_reduce(explode(',', $value), static function ($carry, $item) {
            [$key, $value] = explode('=', $item);
            $carry[$key] = (float) $value;

            return $carry;
        }, []);
    }

    uasort($stats, function($a, $b) {
        return $b['usec_per_call'] <=> $a['usec_per_call'];
    });
}

?>

<div class="objectcache:widget objectcache:commands-widget objectcache:flushlog-widget">

    <?php if ($info === false): ?>

        <p class="inset">Server does not support command statistics.</p>

    <?php elseif (! count($stats)) : ?>

        <p class="inset">No command statistics have been logged, yet.</p>

    <?php else : ?>

        <?php foreach ($stats as $key => $value): ?>

            <details
                data-calls="<?php echo esc_attr($value['calls']); ?>"
                data-rejected="<?php echo esc_attr($value['rejected_calls']); ?>"
                data-failed="<?php echo esc_attr($value['failed_calls']); ?>"
                data-usec="<?php echo esc_attr($value['usec']); ?>"
            >
                <summary>
                    <span class="dashicons dashicons-arrow-right-alt2"></span>
                    <code>
                        <?php echo esc_html($key); ?>
                    </code>
                    <time title="Average CPU time consumed per call">
                        <?php if ($value['usec_per_call'] < 100): ?>
                            <?php echo round($value['usec_per_call'], 0); ?> μs
                        <?php else: ?>
                            <?php echo round($value['usec_per_call'] / 1000, 2); ?> ms
                        <?php endif; ?>
                    </time>
                </summary>

                <ul>
                    <li title="Number of executed calls" data-sort="calls">
                        <span class="dashicons dashicons-controls-play"></span>
                        <time>
                            <?php echo number_format_i18n($value['calls']); ?>
                        </time>
                    </li>
                    <li title="Number of rejected calls" data-sort="rejected">
                        <span class="dashicons dashicons-undo"></span>
                        <time>
                            <?php echo number_format_i18n($value['rejected_calls']); ?>
                        </time>
                    </li>
                    <li title="Number of failed calls" data-sort="failed">
                        <span class="dashicons dashicons-dismiss"></span>
                        <time>
                            <?php echo number_format_i18n($value['failed_calls']); ?>
                        </time>
                    </li>
                    <li title="Total CPU time consumed by the command" data-sort="usec">
                        <span class="dashicons dashicons-clock"></span>
                        <time>
                            <?php if ($value['usec'] < 100): ?>
                                <?php echo round($value['usec'], 0); ?> μs
                            <?php elseif ($value['usec'] < (1000 * 1000)): ?>
                                <?php echo round($value['usec'] / 1000, 2); ?> ms
                            <?php else: ?>
                                <?php echo round($value['usec'] / 1000 / 1000, 2); ?> sec
                            <?php endif; ?>
                        </time>
                    </li>
                </ul>
            </details>
        <?php endforeach; ?>

    <?php endif; ?>

</div>
