secrets[$d] ?? null; } public function touchHeartbeat(string $d, array $m): void { $this->heartbeats[$d] = $m; } public function configVersion(string $d): int { return $this->versions[$d] ?? 1; } } final class InMemoryNonceRepository implements NonceRepository { public array $store = []; public function seen(string $n): bool { return isset($this->store[$n]); } public function remember(string $n, int $exp): void { $this->store[$n] = $exp; } } final class InMemoryRateLimiter implements RateLimiterRepository { public array $counts = []; public function hit(string $k, int $w): int { $key = "$k:$w"; return $this->counts[$key] = ($this->counts[$key] ?? 0) + 1; } } final class InMemoryEventRepository implements EventRepository { public array $rows = []; private int $seq = 0; public function insert(array $e): int { $id = ++$this->seq; $this->rows[$id] = $e + ['event_id' => $id, 'acknowledged_by' => null]; return $id; } public function recent(int $limit, ?string $sev): array { $r = array_reverse($this->rows, true); if ($sev !== null) $r = array_filter($r, fn($x) => $x['severity'] === $sev); return array_slice(array_values($r), 0, $limit); } public function find(int $id): ?array { return $this->rows[$id] ?? null; } public function acknowledge(int $id, string $u): bool { if (!isset($this->rows[$id])) return false; $this->rows[$id]['acknowledged_by'] = $u; return true; } } final class InMemorySnapshotRepository implements SnapshotRepository { public array $rows = []; public array $paths = []; public array $created = []; public function add(int $e, string $uuid, string $hash): void { $this->rows[$e][] = ['file_uuid' => $uuid, 'content_hash' => $hash]; $this->paths[$uuid] = "/tmp/$uuid.jpg"; $this->created[$uuid] = time(); } public function forEvent(int $e): array { return $this->rows[$e] ?? []; } public function pathByUuid(string $u): ?string { return $this->paths[$u] ?? null; } public function purgeOlderThan(int $cutoff): int { $n = 0; foreach ($this->created as $uuid => $ts) { if ($ts >= $cutoff) continue; unset($this->created[$uuid], $this->paths[$uuid]); foreach ($this->rows as $e => $list) { $this->rows[$e] = array_values(array_filter($list, fn($r) => $r['file_uuid'] !== $uuid)); } $n++; } return $n; } } final class InMemoryUserRepository implements UserRepository { public function __construct(public array $users = []) {} public function byUsername(string $u): ?array { return $this->users[$u] ?? null; } public function recordFailure(int $id, int $lock): void { foreach ($this->users as &$row) if ($row['id'] === $id) { $row['failed_attempts'] = ($row['failed_attempts'] ?? 0) + 1; $row['locked_until'] = $lock; } } public function clearFailures(int $id): void { foreach ($this->users as &$row) if ($row['id'] === $id) { $row['failed_attempts'] = 0; $row['locked_until'] = 0; } } } final class InMemoryZoneRepository implements ZoneRepository { public array $zones = []; private int $seq = 0; public function forDevice(string $d): array { return array_values(array_filter($this->zones, fn($z) => ($z['device_id'] ?? '') === $d)); } public function forCamera(string $c): array { return array_values(array_filter($this->zones, fn($z) => $z['camera_id'] === $c)); } public function save(array $z): string { $id = $z['zone_id'] ?? ('z' . (++$this->seq)); $this->zones[$id] = $z + ['zone_id' => $id]; return $id; } public function delete(string $id): bool { if (!isset($this->zones[$id])) return false; unset($this->zones[$id]); return true; } } final class InMemoryThresholdRepository implements ThresholdRepository { public function __construct(private array $data = []) {} public function forDevice(string $d): array { return $this->data[$d] ?? []; } } final class InMemoryAuditRepository implements AuditRepository { public array $log = []; public function append(string $a, string $act, string $t, array $b, array $af): void { $this->log[] = compact('a', 'act', 't', 'b', 'af'); } }