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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | /** @license For full copyright and license information, please see the LICENSE.md file. */ |
| 6 | |
| 7 | namespace App\Modules\Calendar\Application\Service; |
| 8 | |
| 9 | defined('AMMONLY_APP') || exit('Direct script access is forbidden.'); |
| 10 | |
| 11 | use App\Modules\Mail\Domain\Model\MailQueueItem; |
| 12 | use App\Modules\Mail\Domain\Repository\MailRepositoryInterface; |
| 13 | use DateTimeImmutable; |
| 14 | use DateTimeZone; |
| 15 | use Exception; |
| 16 | use PDO; |
| 17 | use Twig\Environment as TwigEnvironment; |
| 18 | |
| 19 | /** |
| 20 | * Orchestrates event invitation lifecycle, email dispatching, iTIP generation, and RSVP updates. |
| 21 | * |
| 22 | * Coordinates bilingual email templates, RFC 5545/6047 .ics attachments, secure HMAC tokens, |
| 23 | * and automatic iTIP METHOD:REPLY notifications to organizers. |
| 24 | * |
| 25 | * @package App\Modules\Calendar\Application\Service |
| 26 | */ |
| 27 | final readonly class CalendarInvitationService implements CalendarInvitationServiceInterface |
| 28 | { |
| 29 | private const string DEFAULT_TIMEZONE = 'Europe/Warsaw'; |
| 30 | private const string LANG_PL = 'pl'; |
| 31 | private const string DEFAULT_EVENT_SUBJECT = 'Calendar Event'; |
| 32 | private const string DATE_FORMAT_YMD_HIS = 'Y-m-d H:i:s'; |
| 33 | |
| 34 | /** |
| 35 | * CalendarInvitationService constructor. |
| 36 | * |
| 37 | * @param CalendarIcsGenerator $icsGenerator iTIP RFC 5545 generator. |
| 38 | * @param CalendarRsvpTokenService $tokenService Cryptographic HMAC token service. |
| 39 | * @param TwigEnvironment $twig Twig template engine. |
| 40 | * @param MailRepositoryInterface $mailRepo Mail queue repository. |
| 41 | * @param PDO $pdo Database handle. |
| 42 | * @param string $tablePrefix Database table prefix ('c_' or 'a_'). |
| 43 | * @param string $baseUrl Base application URL for RSVP links. |
| 44 | */ |
| 45 | public function __construct( |
| 46 | private CalendarIcsGenerator $icsGenerator, |
| 47 | private CalendarRsvpTokenService $tokenService, |
| 48 | private TwigEnvironment $twig, |
| 49 | private MailRepositoryInterface $mailRepo, |
| 50 | private PDO $pdo, |
| 51 | private string $tablePrefix = 'c_', |
| 52 | private string $baseUrl = 'https://app-client.ammonly.com' |
| 53 | ) { |
| 54 | } |
| 55 | |
| 56 | /** |
| 57 | * Sends or queues invitation emails for all attendees of an event. |
| 58 | * |
| 59 | * @param array<string, mixed> $record Calendar record data. |
| 60 | * @param string $action Action type: 'create', 'update', or 'cancel'. |
| 61 | * @return int Number of invitations enqueued. |
| 62 | */ |
| 63 | public function sendEventInvitations(array $record, string $action = 'create'): int |
| 64 | { |
| 65 | $calendarId = (int) ($record['id'] ?? 0); |
| 66 | if ($calendarId <= 0) { |
| 67 | return 0; |
| 68 | } |
| 69 | |
| 70 | $attendees = $this->extractAttendees($record['attendees'] ?? null); |
| 71 | if (empty($attendees)) { |
| 72 | return 0; |
| 73 | } |
| 74 | |
| 75 | $organizer = $this->resolveOrganizer($record); |
| 76 | $defaultSmtp = $this->mailRepo->findDefaultSmtp(); |
| 77 | $smtpId = $defaultSmtp->id; |
| 78 | |
| 79 | $count = 0; |
| 80 | foreach ($attendees as $att) { |
| 81 | $email = trim($att['email'] ?? ''); |
| 82 | if ($email === '' || !filter_var($email, FILTER_VALIDATE_EMAIL)) { |
| 83 | continue; |
| 84 | } |
| 85 | |
| 86 | // Do not send an invitation to the organizer if listed as attendee |
| 87 | if (strtolower($email) === strtolower($organizer['email'])) { |
| 88 | continue; |
| 89 | } |
| 90 | |
| 91 | $lang = $this->resolveAttendeeLanguage($att); |
| 92 | $token = $this->tokenService->generateToken($calendarId, $email); |
| 93 | |
| 94 | $icsContent = $action === 'cancel' |
| 95 | ? $this->icsGenerator->generateCancel($record, $attendees, $organizer) |
| 96 | : $this->icsGenerator->generateRequest($record, $attendees, $organizer, $email); |
| 97 | |
| 98 | $icsFilePath = $this->writeTempIcsFile($calendarId, $email, $icsContent); |
| 99 | |
| 100 | $context = $this->buildTemplateContext( |
| 101 | $record, |
| 102 | $attendees, |
| 103 | $organizer, |
| 104 | $action, |
| 105 | $lang, |
| 106 | $token |
| 107 | ); |
| 108 | |
| 109 | $template = $lang === self::LANG_PL |
| 110 | ? 'mail/calendar/invitation_google_style_pl.twig' |
| 111 | : 'mail/calendar/invitation_google_style_en.twig'; |
| 112 | $htmlBody = $this->twig->render($template, $context); |
| 113 | $textBody = $this->twig->render('mail/calendar/invitation_text.twig', $context); |
| 114 | |
| 115 | $subject = $this->buildSubject( |
| 116 | $record['subject'] ?? self::DEFAULT_EVENT_SUBJECT, |
| 117 | $action, |
| 118 | $lang |
| 119 | ); |
| 120 | |
| 121 | $item = new MailQueueItem( |
| 122 | id: 0, |
| 123 | templateId: null, |
| 124 | smtpId: $smtpId, |
| 125 | recipientEmail: $email, |
| 126 | recipientName: $att['name'] ?? null, |
| 127 | subject: $subject, |
| 128 | bodyHtml: $htmlBody, |
| 129 | bodyText: $textBody, |
| 130 | attachments: [$icsFilePath], |
| 131 | priority: $action === 'cancel' ? 'urgent' : 'high', |
| 132 | dispatchMode: 'automatic' |
| 133 | ); |
| 134 | |
| 135 | $this->mailRepo->enqueue($item); |
| 136 | $count++; |
| 137 | } |
| 138 | |
| 139 | return $count; |
| 140 | } |
| 141 | |
| 142 | /** |
| 143 | * Sends an iTIP METHOD:REPLY notification email to the organizer when an attendee RSVPs. |
| 144 | * |
| 145 | * @param array<string, mixed> $record Calendar event record. |
| 146 | * @param string $attendeeEmail Responding attendee email. |
| 147 | * @param string $response 'accepted', 'declined', or 'tentative'. |
| 148 | * @return bool True if enqueued. |
| 149 | */ |
| 150 | public function sendOrganizerRsvpNotification( |
| 151 | array $record, |
| 152 | string $attendeeEmail, |
| 153 | string $response |
| 154 | ): bool { |
| 155 | $organizer = $this->resolveOrganizer($record); |
| 156 | if ($organizer['email'] === '' || !filter_var($organizer['email'], FILTER_VALIDATE_EMAIL)) { |
| 157 | return false; |
| 158 | } |
| 159 | |
| 160 | $attendeeName = $this->resolveAttendeeName($record['attendees'] ?? null, $attendeeEmail); |
| 161 | $icsReply = $this->icsGenerator->generateReply( |
| 162 | $record, |
| 163 | $organizer, |
| 164 | $attendeeEmail, |
| 165 | $attendeeName, |
| 166 | $response |
| 167 | ); |
| 168 | |
| 169 | $calendarId = (int) ($record['id'] ?? 0); |
| 170 | $icsFilePath = $this->writeTempIcsFile($calendarId, 'reply_' . $attendeeEmail, $icsReply); |
| 171 | |
| 172 | $defaultSmtp = $this->mailRepo->findDefaultSmtp(); |
| 173 | $smtpId = $defaultSmtp->id; |
| 174 | |
| 175 | $statusText = match ($response) { |
| 176 | 'accepted' => 'Zaakceptowano / Accepted', |
| 177 | 'declined' => 'Odrzucono / Declined', |
| 178 | default => 'Być może / Tentative', |
| 179 | }; |
| 180 | |
| 181 | $eventSubject = (string) ($record['subject'] ?? self::DEFAULT_EVENT_SUBJECT); |
| 182 | $subject = sprintf('RSVP: %s - %s (%s)', $statusText, $eventSubject, $attendeeEmail); |
| 183 | |
| 184 | $bodyHtml = sprintf( |
| 185 | '<p>Uczestnik <strong>%s</strong> (%s) odpowiedział na zaproszenie do wydarzenia: ' |
| 186 | . '<strong>%s</strong>.</p><p>Status odpowiedzi: <strong>%s</strong>.</p>' |
| 187 | . '<p>Załączony plik iTIP METHOD:REPLY automatycznie aktualizuje status w Twoim kalendarzu.</p>', |
| 188 | htmlspecialchars($attendeeName, ENT_QUOTES, 'UTF-8'), |
| 189 | htmlspecialchars($attendeeEmail, ENT_QUOTES, 'UTF-8'), |
| 190 | htmlspecialchars($eventSubject, ENT_QUOTES, 'UTF-8'), |
| 191 | htmlspecialchars($statusText, ENT_QUOTES, 'UTF-8') |
| 192 | ); |
| 193 | |
| 194 | $bodyText = sprintf( |
| 195 | "RSVP Odpowiedź: %s\nWydarzenie: %s\nUczestnik: %s <%s>\nStatus: %s\n", |
| 196 | $statusText, |
| 197 | $eventSubject, |
| 198 | $attendeeName, |
| 199 | $attendeeEmail, |
| 200 | $statusText |
| 201 | ); |
| 202 | |
| 203 | $item = new MailQueueItem( |
| 204 | id: 0, |
| 205 | templateId: null, |
| 206 | smtpId: $smtpId, |
| 207 | recipientEmail: $organizer['email'], |
| 208 | recipientName: $organizer['name'], |
| 209 | subject: $subject, |
| 210 | bodyHtml: $bodyHtml, |
| 211 | bodyText: $bodyText, |
| 212 | attachments: [$icsFilePath], |
| 213 | priority: 'high', |
| 214 | dispatchMode: 'automatic' |
| 215 | ); |
| 216 | |
| 217 | $this->mailRepo->enqueue($item); |
| 218 | return true; |
| 219 | } |
| 220 | |
| 221 | /** |
| 222 | * Updates an attendee's RSVP status in the database JSON column. |
| 223 | * |
| 224 | * @param int $calendarId Event ID. |
| 225 | * @param string $attendeeEmail Attendee email. |
| 226 | * @param string $newStatus 'accepted', 'declined', or 'tentative'. |
| 227 | * @return bool True if updated successfully. |
| 228 | */ |
| 229 | public function updateAttendeeStatus(int $calendarId, string $attendeeEmail, string $newStatus): bool |
| 230 | { |
| 231 | $table = $this->tablePrefix . 'mod_calendar_records'; |
| 232 | $selectSql = "SELECT `id`, `attendees` FROM `{$table}` WHERE `id` = :id LIMIT 1"; |
| 233 | $stmt = $this->pdo->prepare($selectSql); |
| 234 | $stmt->execute([':id' => $calendarId]); |
| 235 | $row = $stmt->fetch(PDO::FETCH_ASSOC); |
| 236 | |
| 237 | if ($row === false) { |
| 238 | return false; |
| 239 | } |
| 240 | |
| 241 | [$attendeesList, $permissions] = $this->parseAttendeesPayload($row['attendees'] ?? null); |
| 242 | $attendeesList = $this->updateAttendeeInList($attendeesList, $attendeeEmail, $newStatus); |
| 243 | |
| 244 | $payload = !empty($permissions) |
| 245 | ? ['attendees' => $attendeesList, 'permissions' => $permissions] |
| 246 | : ['attendees' => $attendeesList]; |
| 247 | |
| 248 | $jsonEncoded = json_encode($payload, JSON_UNESCAPED_UNICODE); |
| 249 | $updateSql = "UPDATE `{$table}` SET `attendees` = :attendees, `updated_at` = :updated_at WHERE `id` = :id"; |
| 250 | $updateStmt = $this->pdo->prepare($updateSql); |
| 251 | return $updateStmt->execute([ |
| 252 | ':attendees' => $jsonEncoded, |
| 253 | ':updated_at' => date(self::DATE_FORMAT_YMD_HIS), |
| 254 | ':id' => $calendarId, |
| 255 | ]); |
| 256 | } |
| 257 | |
| 258 | /** |
| 259 | * @param string|null $rawAttendees |
| 260 | * @return array{0: list<array<string, mixed>>, 1: array<string, mixed>} |
| 261 | */ |
| 262 | private function parseAttendeesPayload(?string $rawAttendees): array |
| 263 | { |
| 264 | $decoded = is_string($rawAttendees) && $rawAttendees !== '' ? json_decode($rawAttendees, true) : null; |
| 265 | if (!is_array($decoded)) { |
| 266 | return [[], []]; |
| 267 | } |
| 268 | |
| 269 | $attendeesList = isset($decoded['attendees']) && is_array($decoded['attendees']) |
| 270 | ? $decoded['attendees'] |
| 271 | : $decoded; |
| 272 | $permissions = isset($decoded['permissions']) && is_array($decoded['permissions']) |
| 273 | ? $decoded['permissions'] |
| 274 | : []; |
| 275 | |
| 276 | return [$attendeesList, $permissions]; |
| 277 | } |
| 278 | |
| 279 | /** |
| 280 | * @param list<array<string, mixed>> $attendeesList |
| 281 | * @return list<array<string, mixed>> |
| 282 | */ |
| 283 | private function updateAttendeeInList(array $attendeesList, string $attendeeEmail, string $newStatus): array |
| 284 | { |
| 285 | $matched = false; |
| 286 | $normalizedEmail = strtolower(trim($attendeeEmail)); |
| 287 | |
| 288 | foreach ($attendeesList as &$att) { |
| 289 | if (is_array($att) && strtolower(trim((string) ($att['email'] ?? ''))) === $normalizedEmail) { |
| 290 | $att['status'] = strtolower(trim($newStatus)); |
| 291 | $att['responded_at'] = date(self::DATE_FORMAT_YMD_HIS); |
| 292 | $matched = true; |
| 293 | } |
| 294 | } |
| 295 | unset($att); |
| 296 | |
| 297 | if (!$matched) { |
| 298 | $attendeesList[] = [ |
| 299 | 'name' => $attendeeEmail, |
| 300 | 'email' => $attendeeEmail, |
| 301 | 'status' => strtolower(trim($newStatus)), |
| 302 | 'responded_at' => date(self::DATE_FORMAT_YMD_HIS), |
| 303 | ]; |
| 304 | } |
| 305 | |
| 306 | return $attendeesList; |
| 307 | } |
| 308 | |
| 309 | /** |
| 310 | * Resolves event record by ID. |
| 311 | * |
| 312 | * @param int $calendarId Event ID. |
| 313 | * @return array<string, mixed>|null Event row or null. |
| 314 | */ |
| 315 | public function findCalendarRecord(int $calendarId): ?array |
| 316 | { |
| 317 | $table = $this->tablePrefix . 'mod_calendar_records'; |
| 318 | $sql = "SELECT `id`, `c_uid`, `sequence`, `subject`, `start_date`, `end_date`, `is_all_day`, " |
| 319 | . "`location`, `meeting_url`, `status`, `description`, `owner`, `created_by`, `attendees` " |
| 320 | . "FROM `{$table}` WHERE `id` = :id LIMIT 1"; |
| 321 | |
| 322 | $stmt = $this->pdo->prepare($sql); |
| 323 | $stmt->execute([':id' => $calendarId]); |
| 324 | $row = $stmt->fetch(PDO::FETCH_ASSOC); |
| 325 | |
| 326 | return $row !== false ? $row : null; |
| 327 | } |
| 328 | |
| 329 | /** |
| 330 | * Normalizes attendees data into a clean array. |
| 331 | * |
| 332 | * @param mixed $raw Raw attendees data from DB. |
| 333 | * @return list<array{name: string, email: string, status: string}> |
| 334 | */ |
| 335 | public function extractAttendees(mixed $raw): array |
| 336 | { |
| 337 | if (is_string($raw) && trim($raw) !== '') { |
| 338 | $raw = json_decode($raw, true); |
| 339 | } |
| 340 | |
| 341 | $candidates = []; |
| 342 | if (is_array($raw)) { |
| 343 | $candidates = isset($raw['attendees']) && is_array($raw['attendees']) |
| 344 | ? $raw['attendees'] |
| 345 | : $raw; |
| 346 | } |
| 347 | |
| 348 | $list = []; |
| 349 | foreach ($candidates as $item) { |
| 350 | if (!is_array($item)) { |
| 351 | continue; |
| 352 | } |
| 353 | $email = trim((string) ($item['email'] ?? '')); |
| 354 | if ($email === '' || !filter_var($email, FILTER_VALIDATE_EMAIL)) { |
| 355 | continue; |
| 356 | } |
| 357 | $name = trim((string) ($item['name'] ?? '')); |
| 358 | $status = strtolower(trim((string) ($item['status'] ?? 'needs-action'))); |
| 359 | |
| 360 | $list[] = [ |
| 361 | 'name' => $name !== '' ? $name : $email, |
| 362 | 'email' => $email, |
| 363 | 'status' => $status, |
| 364 | ]; |
| 365 | } |
| 366 | |
| 367 | return $list; |
| 368 | } |
| 369 | |
| 370 | /** |
| 371 | * Resolves organizer details from event record owner or fallback. |
| 372 | * |
| 373 | * @param array<string, mixed> $record Event data. |
| 374 | * @return array{name: string, email: string} |
| 375 | */ |
| 376 | public function resolveOrganizer(array $record): array |
| 377 | { |
| 378 | $userId = (int) ($record['owner'] ?? ($record['created_by'] ?? 1)); |
| 379 | if ($userId > 0) { |
| 380 | $user = $this->lookupUser($userId); |
| 381 | if ($user !== null && filter_var($user['email'], FILTER_VALIDATE_EMAIL)) { |
| 382 | return $user; |
| 383 | } |
| 384 | } |
| 385 | |
| 386 | $defaultSmtp = $this->mailRepo->findDefaultSmtp(); |
| 387 | if ($defaultSmtp !== null && filter_var($defaultSmtp->fromEmail, FILTER_VALIDATE_EMAIL)) { |
| 388 | return [ |
| 389 | 'name' => $defaultSmtp->fromName !== '' ? $defaultSmtp->fromName : 'Ammonly Calendar', |
| 390 | 'email' => $defaultSmtp->fromEmail, |
| 391 | ]; |
| 392 | } |
| 393 | |
| 394 | return [ |
| 395 | 'name' => 'Ammonly Calendar', |
| 396 | 'email' => '', |
| 397 | ]; |
| 398 | } |
| 399 | |
| 400 | /** |
| 401 | * Formats start and end dates into localized human-readable string. |
| 402 | */ |
| 403 | public function formatEventDate( |
| 404 | string $startDate, |
| 405 | string $endDate, |
| 406 | bool $isAllDay, |
| 407 | string $lang = self::LANG_PL |
| 408 | ): string { |
| 409 | try { |
| 410 | $tz = new DateTimeZone(self::DEFAULT_TIMEZONE); |
| 411 | $start = new DateTimeImmutable($startDate, $tz); |
| 412 | $end = new DateTimeImmutable($endDate, $tz); |
| 413 | |
| 414 | if ($isAllDay) { |
| 415 | return $lang === self::LANG_PL |
| 416 | ? $start->format('d.m.Y') . ' (Cały dzień)' |
| 417 | : $start->format('M d, Y') . ' (All day)'; |
| 418 | } |
| 419 | |
| 420 | return $this->formatEventTimeRange($start, $end, $lang); |
| 421 | } catch (Exception) { |
| 422 | return "{$startDate} - {$endDate}"; |
| 423 | } |
| 424 | } |
| 425 | |
| 426 | private function formatEventTimeRange(DateTimeImmutable $start, DateTimeImmutable $end, string $lang): string |
| 427 | { |
| 428 | $sameDay = $start->format('Y-m-d') === $end->format('Y-m-d'); |
| 429 | if ($sameDay) { |
| 430 | $fmt = $lang === self::LANG_PL ? 'd.m.Y' : 'M d, Y'; |
| 431 | return sprintf( |
| 432 | '%s, %s – %s (CEST)', |
| 433 | $start->format($fmt), |
| 434 | $start->format('H:i'), |
| 435 | $end->format('H:i') |
| 436 | ); |
| 437 | } |
| 438 | |
| 439 | return sprintf( |
| 440 | '%s – %s (%s)', |
| 441 | $start->format('d.m.Y H:i'), |
| 442 | $end->format('d.m.Y H:i'), |
| 443 | 'CEST' |
| 444 | ); |
| 445 | } |
| 446 | |
| 447 | /** |
| 448 | * Looks up user information from database. |
| 449 | * |
| 450 | * @return array{name: string, email: string}|null |
| 451 | */ |
| 452 | private function lookupUser(int $userId): ?array |
| 453 | { |
| 454 | $table = $this->tablePrefix . 'mod_users_records'; |
| 455 | $sql = "SELECT `first_name`, `last_name`, `email` FROM `{$table}` WHERE `id` = :id LIMIT 1"; |
| 456 | |
| 457 | try { |
| 458 | $stmt = $this->pdo->prepare($sql); |
| 459 | $stmt->execute([':id' => $userId]); |
| 460 | $row = $stmt->fetch(PDO::FETCH_ASSOC); |
| 461 | |
| 462 | if ($row === false) { |
| 463 | return null; |
| 464 | } |
| 465 | |
| 466 | $fullName = trim(($row['first_name'] ?? '') . ' ' . ($row['last_name'] ?? '')); |
| 467 | return [ |
| 468 | 'name' => $fullName !== '' ? $fullName : (string) ($row['email'] ?? ''), |
| 469 | 'email' => (string) ($row['email'] ?? ''), |
| 470 | ]; |
| 471 | } catch (Exception) { |
| 472 | return null; |
| 473 | } |
| 474 | } |
| 475 | |
| 476 | /** |
| 477 | * Finds attendee display name by email. |
| 478 | */ |
| 479 | private function resolveAttendeeName(mixed $rawAttendees, string $email): string |
| 480 | { |
| 481 | $attendees = $this->extractAttendees($rawAttendees); |
| 482 | $search = strtolower(trim($email)); |
| 483 | foreach ($attendees as $att) { |
| 484 | if (strtolower($att['email']) === $search && $att['name'] !== '') { |
| 485 | return $att['name']; |
| 486 | } |
| 487 | } |
| 488 | return $email; |
| 489 | } |
| 490 | |
| 491 | /** |
| 492 | * Builds template replacement context. |
| 493 | * |
| 494 | * @param array<string, mixed> $record |
| 495 | * @param list<array{name: string, email: string, status: string}> $attendees |
| 496 | * @param array{name: string, email: string} $organizer |
| 497 | * @return array<string, mixed> |
| 498 | */ |
| 499 | private function buildTemplateContext( |
| 500 | array $record, |
| 501 | array $attendees, |
| 502 | array $organizer, |
| 503 | string $action, |
| 504 | string $lang, |
| 505 | string $token |
| 506 | ): array { |
| 507 | $startDate = (string) ($record['start_date'] ?? 'now'); |
| 508 | $endDate = (string) ($record['end_date'] ?? '+1 hour'); |
| 509 | $isAllDay = ((int) ($record['is_all_day'] ?? 0)) === 1; |
| 510 | |
| 511 | $baseUrl = rtrim($this->baseUrl, '/'); |
| 512 | $rsvpBase = "{$baseUrl}/calendar/rsvp?token={$token}&lang={$lang}"; |
| 513 | |
| 514 | $updateNotice = null; |
| 515 | if ($action === 'update') { |
| 516 | $updateNotice = $lang === self::LANG_PL |
| 517 | ? 'Zmieniono termin lub szczegóły' |
| 518 | : 'Schedule or details updated'; |
| 519 | } |
| 520 | |
| 521 | return [ |
| 522 | 'subject' => (string) ($record['subject'] ?? self::DEFAULT_EVENT_SUBJECT), |
| 523 | 'location' => (string) ($record['location'] ?? ''), |
| 524 | 'meeting_url' => (string) ($record['meeting_url'] ?? ''), |
| 525 | 'description' => (string) ($record['description'] ?? ''), |
| 526 | 'organizer' => $organizer, |
| 527 | 'attendees' => $attendees, |
| 528 | 'lang' => $lang, |
| 529 | 'is_cancelled' => $action === 'cancel', |
| 530 | 'is_updated' => $action === 'update', |
| 531 | 'update_notice' => $updateNotice, |
| 532 | 'start_iso' => date('c', strtotime($startDate)), |
| 533 | 'end_iso' => date('c', strtotime($endDate)), |
| 534 | 'formatted_date' => $this->formatEventDate($startDate, $endDate, $isAllDay, $lang), |
| 535 | 'old_formatted_date'=> null, |
| 536 | 'rsvp_yes_url' => "{$rsvpBase}&response=accepted", |
| 537 | 'rsvp_maybe_url' => "{$rsvpBase}&response=tentative", |
| 538 | 'rsvp_no_url' => "{$rsvpBase}&response=declined", |
| 539 | ]; |
| 540 | } |
| 541 | |
| 542 | /** |
| 543 | * Constructs email subject line. |
| 544 | */ |
| 545 | private function buildSubject(string $subject, string $action, string $lang): string |
| 546 | { |
| 547 | return match ($action) { |
| 548 | 'cancel' => $lang === self::LANG_PL ? "[Odwołano] {$subject}" : "[Cancelled] {$subject}", |
| 549 | 'update' => $lang === self::LANG_PL ? "[Zaktualizowano] {$subject}" : "[Updated] {$subject}", |
| 550 | default => $lang === self::LANG_PL ? "Zaproszenie: {$subject}" : "Invitation: {$subject}", |
| 551 | }; |
| 552 | } |
| 553 | |
| 554 | /** |
| 555 | * Resolves attendee language preference (defaults to 'pl'). |
| 556 | * |
| 557 | * @param array{name?: string, email: string, status?: string} $attendee |
| 558 | */ |
| 559 | private function resolveAttendeeLanguage(array $attendee): string |
| 560 | { |
| 561 | $email = strtolower($attendee['email']); |
| 562 | if (str_ends_with($email, '.pl')) { |
| 563 | return self::LANG_PL; |
| 564 | } |
| 565 | return self::LANG_PL; |
| 566 | } |
| 567 | |
| 568 | /** |
| 569 | * Writes generated iCalendar payload to a temporary file on disk for email attachment. |
| 570 | */ |
| 571 | private function writeTempIcsFile(int $calendarId, string $email, string $content): string |
| 572 | { |
| 573 | $safePrefix = preg_replace('/[^a-zA-Z0-9_-]/', '_', $email); |
| 574 | $path = sprintf( |
| 575 | '%s/invite_%d_%s_%s.ics', |
| 576 | sys_get_temp_dir(), |
| 577 | $calendarId, |
| 578 | $safePrefix, |
| 579 | bin2hex(random_bytes(4)) |
| 580 | ); |
| 581 | |
| 582 | file_put_contents($path, $content); |
| 583 | return $path; |
| 584 | } |
| 585 | } |