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<?php |
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/** |
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* Pro_Audit — scans the current Free configuration + cache stats and |
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* surfaces Pro features that would specifically help THIS site. |
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* |
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* Powers the dashboard's "Run Pro audit" button. The point isn't to |
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* list every Pro feature; it's to make each suggestion personal |
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* ("Cache hit ratio is 38% → Pro Recommendations would tell you why") |
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* so the user converts because Pro solves a problem they actually |
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* see, not because we shouted "BUY NOW." |
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* |
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* Pure read-only. Returns an ordered list of suggestions: |
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* |
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* [ id, severity ('high'|'med'|'low'), reason, fact ] |
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* |
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* - id → matches a key in PRO_FEATURES (the React catalog), |
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* so the panel renders title/body without duplicating |
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* copy here. |
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* - severity controls sort order + visual tone. |
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* - reason → one-sentence explanation specific to this site's |
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* state. Already-baked numbers/percentages so the |
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* React side just prints it. |
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* - fact → optional shorter inline stat (e.g. "38%") for the |
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* result card's chip. |
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* |
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* Adding a rule: drop another `if (…) $out[] = …` block in run(). |
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* Rules are independent — keep them small + concrete + factual. |
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* |
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* @package XSpeed |
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*/ |
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|
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declare(strict_types=1); |
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|
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namespace XSpeed; |
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|
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defined( 'ABSPATH' ) || exit; |
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|
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final class Pro_Audit { |
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|
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public const SEVERITY_HIGH = 'high'; |
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public const SEVERITY_MED = 'med'; |
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public const SEVERITY_LOW = 'low'; |
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|
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/** |
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* Snapshot of state every rule needs. Computed once per audit run |
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* so we don't read the same option 8 times. |
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* |
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* @param array|null $totals_override Test injection — Brain Monkey |
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* can't mock static class methods, |
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* so tests synthesize the 24h |
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* counter shape here directly. |
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* Production callers leave null. |
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* |
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* @return array<string,mixed> |
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*/ |
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private static function snapshot( ?array $totals_override = null ): array { |
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$opts = static function ( string $slug ): array { |
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return (array) get_option( 'xspeed_module_' . $slug, array() ); |
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}; |
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if ( null !== $totals_override ) { |
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$totals = $totals_override; |
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} elseif ( class_exists( '\\XSpeed\\Hit_Counter' ) ) { |
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$totals = Hit_Counter::totals_24h(); |
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} else { |
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$totals = array( 'hits' => 0, 'misses' => 0, 'excluded' => 0, 'ratio' => 0.0 ); |
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} |
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$cloudflare = $opts( 'cloudflare' ); |
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return array( |
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'cache' => $opts( 'cache' ), |
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'minify' => $opts( 'minify' ), |
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'lazy' => $opts( 'lazy' ), |
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'gzip' => $opts( 'gzip' ), |
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'browser_cache' => $opts( 'browser-cache' ), |
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'cloudflare' => $cloudflare, |
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'cdn' => $opts( 'cdn' ), |
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'database' => $opts( 'database' ), |
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'preloader' => $opts( 'preloader' ), |
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'heartbeat' => $opts( 'heartbeat' ), |
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'cache_enabled' => class_exists( '\\XSpeed\\Settings' ) |
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? ! empty( Settings::get()['cache_enabled'] ) |
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: false, |
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// An edge cache (Cloudflare) in front means the origin hit ratio is |
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// only the origin layer — hits served at the edge never reach PHP — |
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// so a low number is an attribution artefact, not a cache problem. |
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// Rule 2 must not fire an upsell off it. (#118) |
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'edge_cache' => ! empty( $cloudflare['enabled'] ), |
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'totals_24h' => array( |
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'hits' => (int) ( $totals['hits'] ?? 0 ), |
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'misses' => (int) ( $totals['misses'] ?? 0 ), |
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// 404s + bots, kept out of the ratio denominator. (#118) |
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'excluded' => (int) ( $totals['excluded'] ?? 0 ), |
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'total' => (int) ( $totals['hits'] ?? 0 ) + (int) ( $totals['misses'] ?? 0 ), |
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'ratio' => (float) ( $totals['ratio'] ?? 0.0 ), |
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), |
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); |
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} |
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|
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/** |
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* @param array|null $totals_override See snapshot(). Production |
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* callers pass nothing. |
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* |
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* @return array<int,array{id:string,severity:string,reason:string,fact?:string}> |
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*/ |
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public static function run( ?array $totals_override = null ): array { |
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$s = self::snapshot( $totals_override ); |
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$out = array(); |
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|
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// Rule 1 — Cloudflare connected but APO not in use. |
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// High signal: user already pays the Cloudflare overhead, APO |
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// is the highest-leverage Pro feature they can flip on next. |
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if ( ! empty( $s['cloudflare']['enabled'] ) ) { |
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$out[] = array( |
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'id' => 'cloudflare-apo', |
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'severity' => self::SEVERITY_HIGH, |
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'reason' => 'Cloudflare is already connected. Pro adds Automatic Platform Optimization, which edge-caches your HTML — typically cuts TTFB in half.', |
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'fact' => 'Cloudflare on', |
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); |
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} |
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|
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// Rule 2 — Low cache hit ratio with meaningful traffic. |
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// "Meaningful" = > 50 hits over 24h; below that the ratio is |
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// statistical noise and we'd suggest based on bad data. The ratio is |
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// now computed over real traffic only (404s + bots excluded, #118), and |
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// we skip it entirely when an edge cache fronts the origin — behind |
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// Cloudflare a low origin ratio means hits are served at the edge, not |
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// that the cache is failing, so firing a "your cache is bad" upsell off |
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// it is selling against a measurement artefact. |
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if ( empty( $s['edge_cache'] ) |
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&& $s['totals_24h']['total'] >= 50 |
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&& $s['totals_24h']['ratio'] < 0.5 ) { |
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$pct = (int) round( $s['totals_24h']['ratio'] * 100 ); |
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$out[] = array( |
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'id' => 'recommendations', |
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'severity' => self::SEVERITY_HIGH, |
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'reason' => sprintf( |
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'Cache hit ratio is %d%% over the last 24h. Pro Recommendations identifies which URLs miss the cache and why, with one-click fixes.', |
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$pct |
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), |
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'fact' => $pct . '% hit', |
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); |
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} |
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|
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// Rule 3 — Lazy-load enabled but no auto WebP/AVIF. |
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// User cares about images (lazy on) → next gain is format. |
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if ( ! empty( $s['lazy']['lazy_images'] ) ) { |
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$out[] = array( |
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'id' => 'webp-avif', |
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'severity' => self::SEVERITY_MED, |
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'reason' => 'Images are lazy-loaded. Pro auto-converts new JPEG/PNG uploads to WebP and AVIF — typically 25-35% smaller at the same visual quality.', |
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); |
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} |
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|
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// Rule 4 — High traffic without RUM data. |
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// Real-user metrics matter more than synthetic Lighthouse when |
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// the site has actual visitors. |
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if ( $s['totals_24h']['total'] >= 100 ) { |
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$views = number_format( $s['totals_24h']['total'] ); |
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$out[] = array( |
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'id' => 'rum', |
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'severity' => self::SEVERITY_MED, |
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'reason' => sprintf( |
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'You served %s requests in 24h. Pro RUM samples actual LCP, CLS and INP from those visitors — Lighthouse only simulates one device, one connection.', |
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$views |
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), |
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'fact' => $views . ' / 24h', |
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); |
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} |
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|
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// Rule 5 — HTML minify on but JS minify off (theme-safe stance). |
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// Suggest Critical CSS as the next gain that doesn't touch JS. |
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if ( ! empty( $s['minify']['minify_html'] ) && empty( $s['minify']['minify_js'] ) ) { |
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$out[] = array( |
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'id' => 'critical-css', |
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'severity' => self::SEVERITY_MED, |
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'reason' => 'JS minify is off (good — high theme-conflict risk). Pro Critical CSS delivers similar first-paint gains without touching JavaScript.', |
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); |
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} |
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|
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// Rule 6 — Database cleanup on manual schedule. |
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// Only fire when the user has actually configured the Database |
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// module (has saved options). Empty option = user hasn't |
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// touched it; don't suggest scheduling something they might |
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// never use. |
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if ( ! empty( $s['database'] ) && 'manual' === ( $s['database']['schedule'] ?? 'manual' ) ) { |
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$out[] = array( |
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'id' => 'recommendations', |
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'severity' => self::SEVERITY_LOW, |
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'reason' => 'Database cleanup is set to manual. Pro Recommendations engine auto-schedules cleanups based on smart triggers (after publish, before backup).', |
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); |
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} |
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|
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// Rule 7 — Agency / professional usage signal. |
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// >= 5 enabled modules suggests serious use → white-label is |
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// what they'd actually want next. |
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$enabled = 0; |
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foreach ( array( 'minify', 'gzip', 'lazy', 'browser_cache', 'cloudflare', 'cdn', 'preloader' ) as $k ) { |
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if ( ! empty( $s[ $k ]['enabled'] ) ) { |
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$enabled++; |
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} |
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} |
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if ( $s['cache_enabled'] ) { |
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$enabled++; |
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} |
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if ( $enabled >= 5 ) { |
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$out[] = array( |
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'id' => 'white-label', |
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'severity' => self::SEVERITY_LOW, |
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'reason' => sprintf( |
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'You\'ve configured %d modules — looks like agency work. Pro White-Label rebrands the dashboard chrome for client handoff.', |
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$enabled |
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), |
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'fact' => $enabled . ' modules', |
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); |
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} |
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|
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// Fallback — never return an empty audit. Analytics is the |
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// safe always-relevant suggestion (every site has cache |
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// activity to chart). |
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if ( empty( $out ) ) { |
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$out[] = array( |
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'id' => 'analytics', |
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'severity' => self::SEVERITY_LOW, |
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'reason' => 'See which pages benefit most from caching, where your slow URLs are, and your hit-ratio over time.', |
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); |
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} |
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|
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// Dedupe by id, keeping the highest-severity rule per feature. |
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// Rules independently suggest the same feature for different |
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// reasons; pick the strongest reason to show. |
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$by_id = array(); |
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$order = array( self::SEVERITY_HIGH => 0, self::SEVERITY_MED => 1, self::SEVERITY_LOW => 2 ); |
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foreach ( $out as $row ) { |
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$id = $row['id']; |
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if ( ! isset( $by_id[ $id ] ) ) { |
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$by_id[ $id ] = $row; |
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continue; |
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} |
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$existing_rank = $order[ $by_id[ $id ]['severity'] ] ?? 9; |
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$new_rank = $order[ $row['severity'] ] ?? 9; |
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if ( $new_rank < $existing_rank ) { |
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$by_id[ $id ] = $row; |
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} |
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} |
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|
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$out = array_values( $by_id ); |
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usort( $out, static function ( $a, $b ) use ( $order ) { |
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return ( $order[ $a['severity'] ] ?? 9 ) <=> ( $order[ $b['severity'] ] ?? 9 ); |
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} ); |
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return $out; |
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} |
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} |
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|
