| 1 |
<?php |
| 2 |
|
| 3 |
namespace wpforo\classes; |
| 4 |
|
| 5 |
// Exit if accessed directly |
| 6 |
if( ! defined( 'ABSPATH' ) ) exit; |
| 7 |
|
| 8 |
class EmailQueue { |
| 9 |
const BATCH_SIZE = 20; |
| 10 |
const MAX_ATTEMPTS = 3; |
| 11 |
const CRON_HOOK = 'wpforo_process_email_queue'; |
| 12 |
const CLEANUP_HOOK = 'wpforo_cleanup_email_queue'; |
| 13 |
const CRON_INTERVAL = 30; // seconds |
| 14 |
const STALE_THRESHOLD = 120; // 2 minutes - consider cron stalled |
| 15 |
const CLEANUP_DAYS = 7; |
| 16 |
const PROCESSING_LOCK = 'wpforo_email_queue_processing'; |
| 17 |
const LOCK_TIMEOUT = 300; // 5 minutes |
| 18 |
const SELF_HEAL_LOCK = 'wpforo_email_queue_self_heal_check'; |
| 19 |
const SELF_HEAL_THROTTLE = 300; // 5 minutes between auto self-heal attempts |
| 20 |
|
| 21 |
private $table; |
| 22 |
private $table_exists = null; |
| 23 |
private $last_mail_error = ''; |
| 24 |
|
| 25 |
public function __construct() { |
| 26 |
$this->table = WPF()->db->prefix . 'wpforo_email_queue'; |
| 27 |
$this->init_hooks(); |
| 28 |
} |
| 29 |
|
| 30 |
private function init_hooks() { |
| 31 |
add_action( self::CRON_HOOK, [ $this, 'process_batch' ] ); |
| 32 |
add_action( self::CLEANUP_HOOK, [ $this, 'cleanup_old' ] ); |
| 33 |
add_action( 'wp_mail_failed', [ $this, 'capture_mail_error' ] ); |
| 34 |
|
| 35 |
// Auto self-heal for sites where WP-Cron is silently broken (page-cache |
| 36 |
// stripping cron triggers, very low traffic, etc). Runs after WordPress |
| 37 |
// finishes rendering the response, throttled to at most once per |
| 38 |
// SELF_HEAL_THROTTLE per site. No-op on healthy sites. |
| 39 |
add_action( 'shutdown', [ $this, 'maybe_self_heal' ], 100 ); |
| 40 |
} |
| 41 |
|
| 42 |
/** |
| 43 |
* Capture mail errors from wp_mail_failed action |
| 44 |
* Works with native wp_mail and all SMTP plugins |
| 45 |
*/ |
| 46 |
public function capture_mail_error( $wp_error ): void { |
| 47 |
if( is_wp_error( $wp_error ) ) { |
| 48 |
$this->last_mail_error = $wp_error->get_error_message(); |
| 49 |
} |
| 50 |
} |
| 51 |
|
| 52 |
/** |
| 53 |
* Check if the email_queue table exists |
| 54 |
*/ |
| 55 |
private function table_exists(): bool { |
| 56 |
if( $this->table_exists === null ) { |
| 57 |
$this->table_exists = (bool) WPF()->db->get_var( |
| 58 |
WPF()->db->prepare( "SHOW TABLES LIKE %s", $this->table ) |
| 59 |
); |
| 60 |
} |
| 61 |
return $this->table_exists; |
| 62 |
} |
| 63 |
|
| 64 |
/** |
| 65 |
* Contexts that should always be sent synchronously (user expects immediate delivery) |
| 66 |
*/ |
| 67 |
private function get_sync_contexts(): array { |
| 68 |
return apply_filters( 'wpforo_email_sync_contexts', [ |
| 69 |
'password_reset', |
| 70 |
'subscription_confirm', |
| 71 |
'welcome', |
| 72 |
'moderation_alert', |
| 73 |
] ); |
| 74 |
} |
| 75 |
|
| 76 |
/** |
| 77 |
* Check if WP Cron is healthy and capable of processing the queue |
| 78 |
*/ |
| 79 |
public function is_cron_healthy(): bool { |
| 80 |
if( defined( 'DISABLE_WP_CRON' ) && DISABLE_WP_CRON ) { |
| 81 |
return false; |
| 82 |
} |
| 83 |
|
| 84 |
$last_run = (int) get_option( 'wpforo_email_queue_last_run', 0 ); |
| 85 |
$next_scheduled = wp_next_scheduled( self::CRON_HOOK ); |
| 86 |
|
| 87 |
if( $next_scheduled && $next_scheduled < ( time() - self::STALE_THRESHOLD * 5 ) ) { |
| 88 |
if( $this->get_pending_count() > 0 ) { |
| 89 |
return false; |
| 90 |
} |
| 91 |
} |
| 92 |
|
| 93 |
if( $last_run > 0 && $last_run < ( time() - 600 ) ) { |
| 94 |
if( $this->get_pending_count() > 0 ) { |
| 95 |
return false; |
| 96 |
} |
| 97 |
} |
| 98 |
|
| 99 |
return true; |
| 100 |
} |
| 101 |
|
| 102 |
/** |
| 103 |
* Get cron status for admin display |
| 104 |
*/ |
| 105 |
public function get_cron_status(): array { |
| 106 |
$last_run = (int) get_option( 'wpforo_email_queue_last_run', 0 ); |
| 107 |
$next_scheduled = wp_next_scheduled( self::CRON_HOOK ); |
| 108 |
$pending = $this->get_pending_count(); |
| 109 |
$is_healthy = $this->is_cron_healthy(); |
| 110 |
|
| 111 |
if( defined( 'DISABLE_WP_CRON' ) && DISABLE_WP_CRON ) { |
| 112 |
$status = 'disabled'; |
| 113 |
$message = __( 'WP Cron is disabled - emails sent synchronously', 'wpforo' ); |
| 114 |
} elseif( ! $is_healthy ) { |
| 115 |
$status = 'stalled'; |
| 116 |
$message = __( 'Cron appears stalled - emails sent synchronously', 'wpforo' ); |
| 117 |
} elseif( $last_run > ( time() - 300 ) ) { |
| 118 |
$status = 'healthy'; |
| 119 |
$message = __( 'Cron is running normally', 'wpforo' ); |
| 120 |
} elseif( $pending === 0 ) { |
| 121 |
$status = 'idle'; |
| 122 |
$message = __( 'Cron idle - no emails to send', 'wpforo' ); |
| 123 |
} else { |
| 124 |
$status = 'unknown'; |
| 125 |
$message = __( 'Cron status unknown - no recent activity', 'wpforo' ); |
| 126 |
} |
| 127 |
|
| 128 |
return [ |
| 129 |
'status' => $status, |
| 130 |
'message' => $message, |
| 131 |
'is_healthy' => $is_healthy, |
| 132 |
'last_run' => $last_run, |
| 133 |
'last_run_human' => $last_run ? human_time_diff( $last_run ) . ' ' . __( 'ago', 'wpforo' ) : __( 'Never', 'wpforo' ), |
| 134 |
'next_scheduled' => $next_scheduled, |
| 135 |
'pending_count' => $pending, |
| 136 |
]; |
| 137 |
} |
| 138 |
|
| 139 |
/** |
| 140 |
* Queue an email or send synchronously based on context and cron health |
| 141 |
*/ |
| 142 |
public function queue_or_send( string $email, string $subject, string $message, string $headers = '', string $context = 'general', int $related_id = 0 ): bool { |
| 143 |
if( in_array( $context, $this->get_sync_contexts(), true ) ) { |
| 144 |
return $this->send_sync( $email, $subject, $message, $headers ); |
| 145 |
} |
| 146 |
|
| 147 |
if( ! wpforo_setting( 'email', 'async_notifications' ) ) { |
| 148 |
return $this->send_sync( $email, $subject, $message, $headers ); |
| 149 |
} |
| 150 |
|
| 151 |
if( ! $this->is_cron_healthy() ) { |
| 152 |
$this->log_cron_fallback(); |
| 153 |
return $this->send_sync( $email, $subject, $message, $headers ); |
| 154 |
} |
| 155 |
|
| 156 |
return $this->queue( $email, $subject, $message, $headers, $context, $related_id ); |
| 157 |
} |
| 158 |
|
| 159 |
/** |
| 160 |
* Add email to the queue |
| 161 |
*/ |
| 162 |
public function queue( string $email, string $subject, string $message, string $headers = '', string $context = 'general', int $related_id = 0 ): bool { |
| 163 |
if( ! $this->table_exists() ) { |
| 164 |
return $this->send_sync( $email, $subject, $message, $headers ); |
| 165 |
} |
| 166 |
|
| 167 |
$now = current_time( 'mysql', true ); |
| 168 |
$boardid = 0; |
| 169 |
if( isset( WPF()->board ) && method_exists( WPF()->board, 'get_current' ) ) { |
| 170 |
$boardid = (int) WPF()->board->get_current( 'boardid' ); |
| 171 |
} |
| 172 |
|
| 173 |
$result = WPF()->db->insert( |
| 174 |
$this->table, |
| 175 |
[ |
| 176 |
'email' => $email, |
| 177 |
'subject' => $subject, |
| 178 |
'message' => $message, |
| 179 |
'headers' => $headers, |
| 180 |
'priority' => 10, |
| 181 |
'status' => 'pending', |
| 182 |
'attempts' => 0, |
| 183 |
'max_attempts' => self::MAX_ATTEMPTS, |
| 184 |
'created_at' => $now, |
| 185 |
'scheduled_at' => $now, |
| 186 |
'context' => $context, |
| 187 |
'related_id' => $related_id, |
| 188 |
'boardid' => $boardid, |
| 189 |
], |
| 190 |
[ '%s', '%s', '%s', '%s', '%d', '%s', '%d', '%d', '%s', '%s', '%s', '%d', '%d' ] |
| 191 |
); |
| 192 |
|
| 193 |
if( $result ) { |
| 194 |
$this->ensure_cron_scheduled(); |
| 195 |
return true; |
| 196 |
} |
| 197 |
|
| 198 |
return $this->send_sync( $email, $subject, $message, $headers ); |
| 199 |
} |
| 200 |
|
| 201 |
/** |
| 202 |
* Send email synchronously (fallback) |
| 203 |
*/ |
| 204 |
public function send_sync( string $email, string $subject, string $message, string $headers = '' ): bool { |
| 205 |
if( defined( 'IS_GO2WPFORO' ) && IS_GO2WPFORO ) return false; |
| 206 |
|
| 207 |
add_filter( 'wp_mail_content_type', 'wpforo_set_html_content_type', 999 ); |
| 208 |
$result = wp_mail( $email, $subject, $message, $headers ?: wpforo_mail_headers() ); |
| 209 |
remove_filter( 'wp_mail_content_type', 'wpforo_set_html_content_type' ); |
| 210 |
|
| 211 |
return $result; |
| 212 |
} |
| 213 |
|
| 214 |
/** |
| 215 |
* Process a batch of pending emails |
| 216 |
*/ |
| 217 |
public function process_batch(): int { |
| 218 |
if( ! $this->acquire_lock() ) { |
| 219 |
return 0; |
| 220 |
} |
| 221 |
|
| 222 |
$processed = 0; |
| 223 |
|
| 224 |
try { |
| 225 |
$emails = $this->get_pending_emails( self::BATCH_SIZE ); |
| 226 |
|
| 227 |
if( empty( $emails ) ) { |
| 228 |
$this->release_lock(); |
| 229 |
return 0; |
| 230 |
} |
| 231 |
|
| 232 |
$ids = wp_list_pluck( $emails, 'id' ); |
| 233 |
$this->mark_as_processing( $ids ); |
| 234 |
|
| 235 |
foreach( $emails as $email_row ) { |
| 236 |
$success = $this->send_queued_email( $email_row ); |
| 237 |
|
| 238 |
if( $success ) { |
| 239 |
$this->mark_as_sent( $email_row['id'] ); |
| 240 |
$processed++; |
| 241 |
} else { |
| 242 |
$this->handle_failed_email( $email_row ); |
| 243 |
} |
| 244 |
} |
| 245 |
|
| 246 |
update_option( 'wpforo_email_queue_last_run', time() ); |
| 247 |
|
| 248 |
if( $this->get_pending_count() > 0 ) { |
| 249 |
$this->ensure_cron_scheduled(); |
| 250 |
} |
| 251 |
|
| 252 |
} finally { |
| 253 |
$this->release_lock(); |
| 254 |
} |
| 255 |
|
| 256 |
return $processed; |
| 257 |
} |
| 258 |
|
| 259 |
/** |
| 260 |
* Get pending emails ready to be sent |
| 261 |
*/ |
| 262 |
private function get_pending_emails( int $limit ): array { |
| 263 |
if( ! $this->table_exists() ) return []; |
| 264 |
|
| 265 |
$now = current_time( 'mysql', true ); |
| 266 |
|
| 267 |
$results = WPF()->db->get_results( |
| 268 |
WPF()->db->prepare( |
| 269 |
"SELECT * FROM `{$this->table}` |
| 270 |
WHERE `status` = 'pending' |
| 271 |
AND (`scheduled_at` <= %s OR `scheduled_at` IS NULL) |
| 272 |
AND (`next_retry_at` IS NULL OR `next_retry_at` <= %s) |
| 273 |
ORDER BY `priority` ASC, `created_at` ASC |
| 274 |
LIMIT %d", |
| 275 |
$now, |
| 276 |
$now, |
| 277 |
$limit |
| 278 |
), |
| 279 |
ARRAY_A |
| 280 |
); |
| 281 |
|
| 282 |
return $results ?: []; |
| 283 |
} |
| 284 |
|
| 285 |
/** |
| 286 |
* Send a single queued email |
| 287 |
*/ |
| 288 |
private function send_queued_email( array $email_row ): bool { |
| 289 |
$this->last_mail_error = ''; |
| 290 |
|
| 291 |
add_filter( 'wp_mail_content_type', 'wpforo_set_html_content_type', 999 ); |
| 292 |
$result = wp_mail( |
| 293 |
$email_row['email'], |
| 294 |
$email_row['subject'], |
| 295 |
$email_row['message'], |
| 296 |
$email_row['headers'] ?: wpforo_mail_headers() |
| 297 |
); |
| 298 |
remove_filter( 'wp_mail_content_type', 'wpforo_set_html_content_type' ); |
| 299 |
|
| 300 |
return $result; |
| 301 |
} |
| 302 |
|
| 303 |
/** |
| 304 |
* Mark emails as processing |
| 305 |
*/ |
| 306 |
private function mark_as_processing( array $ids ): void { |
| 307 |
if( empty( $ids ) ) return; |
| 308 |
|
| 309 |
$placeholders = implode( ',', array_fill( 0, count( $ids ), '%d' ) ); |
| 310 |
WPF()->db->query( |
| 311 |
WPF()->db->prepare( |
| 312 |
"UPDATE `{$this->table}` SET `status` = 'processing' WHERE `id` IN ($placeholders)", |
| 313 |
...$ids |
| 314 |
) |
| 315 |
); |
| 316 |
} |
| 317 |
|
| 318 |
/** |
| 319 |
* Mark email as sent |
| 320 |
*/ |
| 321 |
private function mark_as_sent( int $id ): void { |
| 322 |
WPF()->db->update( |
| 323 |
$this->table, |
| 324 |
[ |
| 325 |
'status' => 'sent', |
| 326 |
'processed_at' => current_time( 'mysql', true ), |
| 327 |
], |
| 328 |
[ 'id' => $id ], |
| 329 |
[ '%s', '%s' ], |
| 330 |
[ '%d' ] |
| 331 |
); |
| 332 |
} |
| 333 |
|
| 334 |
/** |
| 335 |
* Handle failed email - retry or mark as failed |
| 336 |
*/ |
| 337 |
private function handle_failed_email( array $email_row ): void { |
| 338 |
$attempts = (int) $email_row['attempts'] + 1; |
| 339 |
$max_attempts = (int) $email_row['max_attempts']; |
| 340 |
|
| 341 |
if( $attempts >= $max_attempts ) { |
| 342 |
WPF()->db->update( |
| 343 |
$this->table, |
| 344 |
[ |
| 345 |
'status' => 'failed', |
| 346 |
'attempts' => $attempts, |
| 347 |
'processed_at' => current_time( 'mysql', true ), |
| 348 |
'error_message' => $this->get_last_mail_error(), |
| 349 |
], |
| 350 |
[ 'id' => $email_row['id'] ], |
| 351 |
[ '%s', '%d', '%s', '%s' ], |
| 352 |
[ '%d' ] |
| 353 |
); |
| 354 |
} else { |
| 355 |
$delay = pow( 2, $attempts ) * 60; |
| 356 |
$next_retry = gmdate( 'Y-m-d H:i:s', time() + $delay ); |
| 357 |
|
| 358 |
WPF()->db->update( |
| 359 |
$this->table, |
| 360 |
[ |
| 361 |
'status' => 'pending', |
| 362 |
'attempts' => $attempts, |
| 363 |
'next_retry_at' => $next_retry, |
| 364 |
'error_message' => $this->get_last_mail_error(), |
| 365 |
], |
| 366 |
[ 'id' => $email_row['id'] ], |
| 367 |
[ '%s', '%d', '%s', '%s' ], |
| 368 |
[ '%d' ] |
| 369 |
); |
| 370 |
} |
| 371 |
} |
| 372 |
|
| 373 |
/** |
| 374 |
* Get last wp_mail error if available |
| 375 |
* Uses wp_mail_failed hook (works with all SMTP plugins) |
| 376 |
*/ |
| 377 |
private function get_last_mail_error(): string { |
| 378 |
if( ! empty( $this->last_mail_error ) ) { |
| 379 |
$error = substr( $this->last_mail_error, 0, 500 ); |
| 380 |
$this->last_mail_error = ''; |
| 381 |
return $error; |
| 382 |
} |
| 383 |
return __( 'Unknown error', 'wpforo' ); |
| 384 |
} |
| 385 |
|
| 386 |
/** |
| 387 |
* Ensure cron job is scheduled |
| 388 |
*/ |
| 389 |
public function ensure_cron_scheduled(): void { |
| 390 |
if( ! wp_next_scheduled( self::CRON_HOOK ) ) { |
| 391 |
wp_schedule_single_event( time() + self::CRON_INTERVAL, self::CRON_HOOK ); |
| 392 |
} |
| 393 |
} |
| 394 |
|
| 395 |
/** |
| 396 |
* Self-heal stalled queue when admin visits the page |
| 397 |
*/ |
| 398 |
public function maybe_process_stalled_queue(): int { |
| 399 |
$next_scheduled = wp_next_scheduled( self::CRON_HOOK ); |
| 400 |
|
| 401 |
if( $next_scheduled && $next_scheduled < ( time() - self::STALE_THRESHOLD ) ) { |
| 402 |
if( $this->get_pending_count() > 0 ) { |
| 403 |
return $this->process_batch(); |
| 404 |
} |
| 405 |
} |
| 406 |
|
| 407 |
return 0; |
| 408 |
} |
| 409 |
|
| 410 |
/** |
| 411 |
* Auto self-heal hooked to `shutdown` on every regular page request. |
| 412 |
* |
| 413 |
* Bridges the gap when WP-Cron is silently broken — page-cache plugins |
| 414 |
* stripping cron triggers, very low traffic, or `DISABLE_WP_CRON` set |
| 415 |
* without an external trigger. The check is heavily gated so it costs |
| 416 |
* a single transient read on healthy sites: |
| 417 |
* |
| 418 |
* 1. Skips cron / AJAX / REST / XML-RPC / CLI — those are not user |
| 419 |
* requests and self-healing on them would either be wasted or |
| 420 |
* interfere with their normal flow. |
| 421 |
* 2. Throttled by transient — at most one attempt per site per |
| 422 |
* SELF_HEAL_THROTTLE seconds. |
| 423 |
* 3. The actual processing is delegated to maybe_process_stalled_queue() |
| 424 |
* which itself is a no-op unless the next scheduled cron is overdue |
| 425 |
* AND pending emails exist. |
| 426 |
*/ |
| 427 |
public function maybe_self_heal(): void { |
| 428 |
if( ! $this->table_exists() ) return; |
| 429 |
if( wp_doing_cron() ) return; |
| 430 |
if( wp_doing_ajax() ) return; |
| 431 |
if( defined( 'WP_CLI' ) && WP_CLI ) return; |
| 432 |
if( defined( 'REST_REQUEST' ) && REST_REQUEST ) return; |
| 433 |
if( defined( 'XMLRPC_REQUEST' ) && XMLRPC_REQUEST ) return; |
| 434 |
|
| 435 |
if( get_transient( self::SELF_HEAL_LOCK ) ) return; |
| 436 |
set_transient( self::SELF_HEAL_LOCK, 1, self::SELF_HEAL_THROTTLE ); |
| 437 |
|
| 438 |
$this->maybe_process_stalled_queue(); |
| 439 |
} |
| 440 |
|
| 441 |
/** |
| 442 |
* Clean up old sent emails |
| 443 |
*/ |
| 444 |
public function cleanup_old(): int { |
| 445 |
if( ! $this->table_exists() ) return 0; |
| 446 |
|
| 447 |
$cutoff = gmdate( 'Y-m-d H:i:s', strtotime( '-' . self::CLEANUP_DAYS . ' days' ) ); |
| 448 |
|
| 449 |
$deleted = WPF()->db->query( |
| 450 |
WPF()->db->prepare( |
| 451 |
"DELETE FROM `{$this->table}` WHERE `status` = 'sent' AND `processed_at` < %s", |
| 452 |
$cutoff |
| 453 |
) |
| 454 |
); |
| 455 |
|
| 456 |
return (int) $deleted; |
| 457 |
} |
| 458 |
|
| 459 |
/** |
| 460 |
* Get count of pending emails |
| 461 |
*/ |
| 462 |
public function get_pending_count(): int { |
| 463 |
if( ! $this->table_exists() ) return 0; |
| 464 |
return (int) WPF()->db->get_var( |
| 465 |
"SELECT COUNT(*) FROM `{$this->table}` WHERE `status` IN ('pending', 'processing')" |
| 466 |
); |
| 467 |
} |
| 468 |
|
| 469 |
/** |
| 470 |
* Get count of failed emails |
| 471 |
*/ |
| 472 |
public function get_failed_count(): int { |
| 473 |
if( ! $this->table_exists() ) return 0; |
| 474 |
return (int) WPF()->db->get_var( |
| 475 |
"SELECT COUNT(*) FROM `{$this->table}` WHERE `status` = 'failed'" |
| 476 |
); |
| 477 |
} |
| 478 |
|
| 479 |
/** |
| 480 |
* Get count of sent emails (today) |
| 481 |
*/ |
| 482 |
public function get_sent_today_count(): int { |
| 483 |
if( ! $this->table_exists() ) return 0; |
| 484 |
$today = gmdate( 'Y-m-d 00:00:00' ); |
| 485 |
return (int) WPF()->db->get_var( |
| 486 |
WPF()->db->prepare( |
| 487 |
"SELECT COUNT(*) FROM `{$this->table}` WHERE `status` = 'sent' AND `processed_at` >= %s", |
| 488 |
$today |
| 489 |
) |
| 490 |
); |
| 491 |
} |
| 492 |
|
| 493 |
/** |
| 494 |
* Get total sent count |
| 495 |
*/ |
| 496 |
public function get_total_sent_count(): int { |
| 497 |
if( ! $this->table_exists() ) return 0; |
| 498 |
return (int) WPF()->db->get_var( |
| 499 |
"SELECT COUNT(*) FROM `{$this->table}` WHERE `status` = 'sent'" |
| 500 |
); |
| 501 |
} |
| 502 |
|
| 503 |
/** |
| 504 |
* Get queue statistics |
| 505 |
*/ |
| 506 |
public function get_stats(): array { |
| 507 |
return [ |
| 508 |
'pending' => $this->get_pending_count(), |
| 509 |
'failed' => $this->get_failed_count(), |
| 510 |
'sent_today' => $this->get_sent_today_count(), |
| 511 |
'sent_total' => $this->get_total_sent_count(), |
| 512 |
'cron' => $this->get_cron_status(), |
| 513 |
]; |
| 514 |
} |
| 515 |
|
| 516 |
/** |
| 517 |
* Get paginated queue items for admin display |
| 518 |
*/ |
| 519 |
public function get_queue_items( string $status = 'pending', int $page = 1, int $per_page = 20 ): array { |
| 520 |
if( ! $this->table_exists() ) { |
| 521 |
return [ 'items' => [], 'total' => 0, 'page' => $page, 'per_page' => $per_page, 'total_pages' => 0 ]; |
| 522 |
} |
| 523 |
|
| 524 |
$offset = ( $page - 1 ) * $per_page; |
| 525 |
|
| 526 |
$items = WPF()->db->get_results( |
| 527 |
WPF()->db->prepare( |
| 528 |
"SELECT `id`, `email`, `subject`, `context`, `status`, `attempts`, `max_attempts`, |
| 529 |
`created_at`, `processed_at`, `error_message`, `related_id`, `boardid` |
| 530 |
FROM `{$this->table}` |
| 531 |
WHERE `status` = %s |
| 532 |
ORDER BY `created_at` DESC |
| 533 |
LIMIT %d OFFSET %d", |
| 534 |
$status, |
| 535 |
$per_page, |
| 536 |
$offset |
| 537 |
), |
| 538 |
ARRAY_A |
| 539 |
); |
| 540 |
|
| 541 |
$total = (int) WPF()->db->get_var( |
| 542 |
WPF()->db->prepare( |
| 543 |
"SELECT COUNT(*) FROM `{$this->table}` WHERE `status` = %s", |
| 544 |
$status |
| 545 |
) |
| 546 |
); |
| 547 |
|
| 548 |
return [ |
| 549 |
'items' => $items ?: [], |
| 550 |
'total' => $total, |
| 551 |
'page' => $page, |
| 552 |
'per_page' => $per_page, |
| 553 |
'total_pages'=> ceil( $total / $per_page ), |
| 554 |
]; |
| 555 |
} |
| 556 |
|
| 557 |
/** |
| 558 |
* Retry failed emails |
| 559 |
*/ |
| 560 |
public function retry_failed( array $ids ): int { |
| 561 |
if( empty( $ids ) || ! $this->table_exists() ) return 0; |
| 562 |
|
| 563 |
$ids = array_map( 'intval', $ids ); |
| 564 |
$placeholders = implode( ',', array_fill( 0, count( $ids ), '%d' ) ); |
| 565 |
|
| 566 |
$updated = WPF()->db->query( |
| 567 |
WPF()->db->prepare( |
| 568 |
"UPDATE `{$this->table}` |
| 569 |
SET `status` = 'pending', `attempts` = 0, `next_retry_at` = NULL, `error_message` = NULL |
| 570 |
WHERE `id` IN ($placeholders) AND `status` = 'failed'", |
| 571 |
...$ids |
| 572 |
) |
| 573 |
); |
| 574 |
|
| 575 |
if( $updated ) { |
| 576 |
$this->ensure_cron_scheduled(); |
| 577 |
} |
| 578 |
|
| 579 |
return (int) $updated; |
| 580 |
} |
| 581 |
|
| 582 |
/** |
| 583 |
* Delete queue items |
| 584 |
*/ |
| 585 |
public function delete_items( array $ids ): int { |
| 586 |
if( empty( $ids ) || ! $this->table_exists() ) return 0; |
| 587 |
|
| 588 |
$ids = array_map( 'intval', $ids ); |
| 589 |
$placeholders = implode( ',', array_fill( 0, count( $ids ), '%d' ) ); |
| 590 |
|
| 591 |
return (int) WPF()->db->query( |
| 592 |
WPF()->db->prepare( |
| 593 |
"DELETE FROM `{$this->table}` WHERE `id` IN ($placeholders)", |
| 594 |
...$ids |
| 595 |
) |
| 596 |
); |
| 597 |
} |
| 598 |
|
| 599 |
/** |
| 600 |
* Clear all sent emails |
| 601 |
*/ |
| 602 |
public function clear_sent_history(): int { |
| 603 |
if( ! $this->table_exists() ) return 0; |
| 604 |
return (int) WPF()->db->query( |
| 605 |
"DELETE FROM `{$this->table}` WHERE `status` = 'sent'" |
| 606 |
); |
| 607 |
} |
| 608 |
|
| 609 |
/** |
| 610 |
* Acquire processing lock to prevent concurrent batch processing |
| 611 |
*/ |
| 612 |
private function acquire_lock(): bool { |
| 613 |
$lock = get_transient( self::PROCESSING_LOCK ); |
| 614 |
if( $lock ) { |
| 615 |
return false; |
| 616 |
} |
| 617 |
set_transient( self::PROCESSING_LOCK, time(), self::LOCK_TIMEOUT ); |
| 618 |
return true; |
| 619 |
} |
| 620 |
|
| 621 |
/** |
| 622 |
* Release processing lock |
| 623 |
*/ |
| 624 |
private function release_lock(): void { |
| 625 |
delete_transient( self::PROCESSING_LOCK ); |
| 626 |
} |
| 627 |
|
| 628 |
/** |
| 629 |
* Log when falling back to sync due to cron issues |
| 630 |
*/ |
| 631 |
private function log_cron_fallback(): void { |
| 632 |
$count = (int) get_option( 'wpforo_email_queue_sync_fallback_count', 0 ); |
| 633 |
update_option( 'wpforo_email_queue_sync_fallback_count', $count + 1 ); |
| 634 |
} |
| 635 |
|
| 636 |
/** |
| 637 |
* Schedule daily cleanup cron |
| 638 |
*/ |
| 639 |
public function schedule_cleanup_cron(): void { |
| 640 |
if( ! wp_next_scheduled( self::CLEANUP_HOOK ) ) { |
| 641 |
wp_schedule_event( strtotime( 'tomorrow 3:00am' ), 'daily', self::CLEANUP_HOOK ); |
| 642 |
} |
| 643 |
} |
| 644 |
|
| 645 |
/** |
| 646 |
* Reset processing status for stuck emails (called on activation/upgrade) |
| 647 |
*/ |
| 648 |
public function reset_stuck_processing(): void { |
| 649 |
if( ! $this->table_exists() ) return; |
| 650 |
WPF()->db->query( |
| 651 |
"UPDATE `{$this->table}` SET `status` = 'pending' WHERE `status` = 'processing'" |
| 652 |
); |
| 653 |
} |
| 654 |
} |
| 655 |
|
