<?php
/**
 * Local-only configuration and cache metrics, without RUM or remote lab tests.
 *
 * @package NBHPerformance
 */
namespace NBH\Performance\Modules\PerformanceIntelligence;

/**
 * Local-only configuration and cache metrics, without RUM or remote lab tests.
 */
final class UnifiedMetricsService {
    /** No browser telemetry is collected for this overview. */
    public function summary( $days = 28 ) {
        unset( $days );
        $cache = (array) get_option( 'nbh_performance_cache_stats', array() );
        return array(
            'captured_at' => time(),
            'cache' => array(
                'files' => absint( isset( $cache['files'] ) ? $cache['files'] : 0 ),
                'bytes' => absint( isset( $cache['bytes'] ) ? $cache['bytes'] : 0 ),
            ),
            'features' => array(
                'page_cache' => (bool) get_option( 'nbh_performance_cache_enabled', 0 ),
                'css_minify' => (bool) get_option( 'nbh_performance_css_minify_enabled', 0 ),
                'js_minify' => (bool) get_option( 'nbh_performance_js_minify_enabled', 0 ),
                'image_conversion' => (bool) get_option( 'nbh_performance_image_conversion_enabled', 0 ),
            ),
            'health' => null,
            'alerts' => array(),
            'measurement_source' => 'local_configuration',
        );
    }

    public function snapshot() {
        $summary = $this->summary();
        return array(
            'captured_at' => $summary['captured_at'],
            'health' => null,
            'cache' => $summary['cache'],
            'features' => $summary['features'],
            'measurement_source' => 'local_configuration',
        );
    }
}