add caching of logs

.gitignore

@@ -1,4 +1,5 @@
 .claude/
 debug/
+cached_logs/
 fflogs-schema.json
 config.php

api/abilities.php

@@ -1,13 +1,12 @@
 <?php
 ini_set('display_errors', '0');
 require_once __DIR__ . '/../config.php';
+require_once __DIR__ . '/cache.php';
 session_start_safe();
 
 header('Content-Type: application/json');
 
 if ($_SERVER['REQUEST_METHOD'] !== 'POST') { http_response_code(405); echo json_encode(['error' => 'Method not allowed']); exit; }
-if (empty($_SESSION['access_token']))       { echo json_encode(['reauth' => true]); exit; }
-if (($_SESSION['token_expires'] ?? 0) <= time()) { echo json_encode(['reauth' => true]); exit; }
 
 $reportCode = preg_replace('/[^a-zA-Z0-9]/', '', $_POST['report_code'] ?? '');
 $fightId    = (int)($_POST['fight_id']   ?? 0);
@@ -19,6 +18,16 @@ $translate  = 'true';
 
 if (!$reportCode || !$fightId || !$endTime) { http_response_code(400); echo json_encode(['error' => 'Missing params']); exit; }
 
+$cacheParts = [$fightId, (int)$startTime, (int)$endTime];
+$cached = read_cached_log('abilities', $reportCode, $language, $cacheParts);
+if ($cached !== null) {
+    echo $cached;
+    exit;
+}
+
+if (empty($_SESSION['access_token']))       { echo json_encode(['reauth' => true]); exit; }
+if (($_SESSION['token_expires'] ?? 0) <= time()) { echo json_encode(['reauth' => true]); exit; }
+
 $token = $_SESSION['access_token'];
 
 function localized_graphql_uri(string $language): string {
@@ -123,4 +132,12 @@ foreach (array_keys($seenIds) as $id) {
 }
 usort($abilities, fn($a, $b) => strcmp($a['name'], $b['name']));
 
-echo json_encode(['abilities' => $abilities, 'players' => $players]);
+$response = json_encode(['abilities' => $abilities, 'players' => $players]);
+if ($response === false) {
+    http_response_code(500);
+    echo json_encode(['error' => 'Could not encode abilities response']);
+    exit;
+}
+
+write_cached_log('abilities', $reportCode, $language, $cacheParts, $response);
+echo $response;

api/analysis.php

@@ -1,6 +1,7 @@
 <?php
 ini_set('display_errors', '0');
 require_once __DIR__ . '/../config.php';
+require_once __DIR__ . '/cache.php';
 session_start_safe();
 
 header('Content-Type: application/json');
@@ -11,15 +12,6 @@ if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
     exit;
 }
 
-if (empty($_SESSION['access_token'])) {
-    echo json_encode(['reauth' => true]);
-    exit;
-}
-if (($_SESSION['token_expires'] ?? 0) <= time()) {
-    echo json_encode(['reauth' => true]);
-    exit;
-}
-
 $reportCode = preg_replace('/[^a-zA-Z0-9]/', '', $_POST['report_code'] ?? '');
 $fightId    = (int)($_POST['fight_id']   ?? 0);
 $startTime  = (float)($_POST['start_time'] ?? 0);
@@ -34,6 +26,22 @@ if (!$reportCode || !$fightId || !$endTime) {
     exit;
 }
 
+$cacheParts = [$fightId, (int)$startTime, (int)$endTime];
+$cached = read_cached_log('analysis', $reportCode, $language, $cacheParts);
+if ($cached !== null) {
+    echo $cached;
+    exit;
+}
+
+if (empty($_SESSION['access_token'])) {
+    echo json_encode(['reauth' => true]);
+    exit;
+}
+if (($_SESSION['token_expires'] ?? 0) <= time()) {
+    echo json_encode(['reauth' => true]);
+    exit;
+}
+
 $token = $_SESSION['access_token'];
 
 function localized_graphql_uri(string $language): string {
@@ -514,9 +522,17 @@ foreach ($clusters as $group) {
 }
 usort($aoeEvents, fn($a, $b) => $a['timestamp'] <=> $b['timestamp']);
 
-echo json_encode([
+$response = json_encode([
     'players'          => array_values($players),
     'aoe_events'       => $aoeEvents,
     'fight_start'      => (int)$startTime,
     'mitigation_names' => $mitigationNames,
 ]);
+if ($response === false) {
+    http_response_code(500);
+    echo json_encode(['error' => 'Could not encode analysis response']);
+    exit;
+}
+
+write_cached_log('analysis', $reportCode, $language, $cacheParts, $response);
+echo $response;

api/cache.php

@@ -0,0 +1,51 @@
+<?php
+declare(strict_types=1);
+
+const CACHED_LOG_DIR = __DIR__ . '/../cached_logs';
+
+function cache_language(string $language): string {
+    $language = strtolower(trim($language));
+    return in_array($language, ['en', 'de', 'fr', 'jp'], true) ? $language : 'en';
+}
+
+function cache_report_code(string $reportCode): string {
+    return preg_replace('/[^a-zA-Z0-9]/', '', $reportCode);
+}
+
+function cache_key_part(string|int|float|null $value): string {
+    $value = (string)($value ?? '');
+    $value = preg_replace('/[^a-zA-Z0-9._-]/', '_', $value);
+    return trim($value, '_') ?: 'all';
+}
+
+function cached_log_path(string $kind, string $reportCode, string $language, array $parts = []): string {
+    $reportCode = cache_report_code($reportCode);
+    $language   = cache_language($language);
+    $kind       = cache_key_part($kind);
+    $safeParts  = array_map('cache_key_part', $parts);
+    $suffix     = $safeParts ? '_' . implode('_', $safeParts) : '';
+
+    return CACHED_LOG_DIR . '/' . $reportCode . '/' . $language . '/' . $kind . $suffix . '.json';
+}
+
+function read_cached_log(string $kind, string $reportCode, string $language, array $parts = []): ?string {
+    $path = cached_log_path($kind, $reportCode, $language, $parts);
+    if (!is_file($path)) return null;
+
+    $body = file_get_contents($path);
+    if ($body === false || trim($body) === '') return null;
+    return $body;
+}
+
+function write_cached_log(string $kind, string $reportCode, string $language, array $parts, string $body): void {
+    $decoded = json_decode($body, true);
+    if (!is_array($decoded) || isset($decoded['error'], $decoded['errors'], $decoded['reauth'])) return;
+
+    $path = cached_log_path($kind, $reportCode, $language, $parts);
+    $dir  = dirname($path);
+    if (!is_dir($dir) && !mkdir($dir, 0775, true) && !is_dir($dir)) return;
+
+    $tmp = $path . '.' . bin2hex(random_bytes(4)) . '.tmp';
+    if (file_put_contents($tmp, $body, LOCK_EX) === false) return;
+    rename($tmp, $path);
+}

api/fight.php

@@ -1,6 +1,7 @@
 <?php
 ini_set('display_errors', '0');
 require_once __DIR__ . '/../config.php';
+require_once __DIR__ . '/cache.php';
 session_start_safe();
 
 header('Content-Type: application/json');
@@ -21,6 +22,12 @@ if (strlen($reportCode) < 1) {
     exit;
 }
 
+$cached = read_cached_log('fight', $reportCode, $language);
+if ($cached !== null) {
+    echo $cached;
+    exit;
+}
+
 if (empty($_SESSION['access_token'])) {
     http_response_code(401);
     echo json_encode(['error' => 'Not authenticated', 'reauth' => true]);
@@ -91,6 +98,7 @@ curl_setopt_array($ch, [
 $body      = curl_exec($ch);
 $httpStatus = curl_getinfo($ch, CURLINFO_HTTP_CODE);
 $curlError = curl_error($ch);
+curl_close($ch);
 
 if ($curlError) {
     http_response_code(502);
@@ -112,5 +120,8 @@ if ($httpStatus === 401) {
 }
 
 http_response_code($httpStatus === 200 ? 200 : $httpStatus);
+if ($httpStatus === 200) {
+    write_cached_log('fight', $reportCode, $language, [], $body);
+}
 echo $body;
 exit;

api/players.php

@@ -1,13 +1,12 @@
 <?php
 ini_set('display_errors', '0');
 require_once __DIR__ . '/../config.php';
+require_once __DIR__ . '/cache.php';
 session_start_safe();
 
 header('Content-Type: application/json');
 
 if ($_SERVER['REQUEST_METHOD'] !== 'POST') { http_response_code(405); echo json_encode(['error' => 'Method not allowed']); exit; }
-if (empty($_SESSION['access_token']))       { echo json_encode(['reauth' => true]); exit; }
-if (($_SESSION['token_expires'] ?? 0) <= time()) { echo json_encode(['reauth' => true]); exit; }
 
 $reportCode = preg_replace('/[^a-zA-Z0-9]/', '', $_POST['report_code'] ?? '');
 $fightId    = (int)($_POST['fight_id']   ?? 0);
@@ -20,6 +19,16 @@ if (!$reportCode || !$fightId || !$endTime) {
     exit;
 }
 
+$cacheParts = [$fightId, (int)$startTime, (int)$endTime];
+$cached = read_cached_log('players', $reportCode, 'en', $cacheParts);
+if ($cached !== null) {
+    echo $cached;
+    exit;
+}
+
+if (empty($_SESSION['access_token']))       { echo json_encode(['reauth' => true]); exit; }
+if (($_SESSION['token_expires'] ?? 0) <= time()) { echo json_encode(['reauth' => true]); exit; }
+
 $token = $_SESSION['access_token'];
 
 function pl_gql(string $query): array {
@@ -92,4 +101,12 @@ foreach ($result['data']['reportData']['report']['events']['data'] ?? [] as $ev)
     }
 }
 
-echo json_encode(['players' => array_values($players)]);
+$response = json_encode(['players' => array_values($players)]);
+if ($response === false) {
+    http_response_code(500);
+    echo json_encode(['error' => 'Could not encode players response']);
+    exit;
+}
+
+write_cached_log('players', $reportCode, 'en', $cacheParts, $response);
+echo $response;

run_Server.bat

@@ -0,0 +1 @@
+php -S localhost:8080