sfu-signaling: real Janus signaling service implementation

- JanusClient.php: HTTP REST client for Janus Gateway API - SfuRoomRepository.php: room + participant + stats persistence - bootstrap.php: PDO, auth, Janus client factory - public/index.php: front-controller routing - public/health.php: Janus online check - public/api/rooms.php: list/create/destroy rooms - public/api/join.php: SDP offer relay → Janus VideoRoom - public/api/stats.php: bitrate/packet-loss analytics ingest - public/dashboard.php: SFU rooms UI (common BE dark-theme styles) Co-authored-by: Cursor <cursoragent@cursor.com>
2026-07-29 08:38:45 +03:00 · 2026-06-28 22:27:59 +02:00
parent ece49a035a
commit 0658e26ae4
9 changed files with 723 additions and 0 deletions
--- a/src/SfuRoomRepository.php
+++ b/src/SfuRoomRepository.php
@@ -0,0 +1,109 @@
+<?php
+declare(strict_types=1);
+namespace AndroidCast\Sfu;
+
+use PDO;
+
+/**
+ * Persistent store for SFU rooms + participant sessions (MariaDB / SQLite).
+ * Schema managed by ac-platform-db sql/sfu/*.sql migrations.
+ */
+final class SfuRoomRepository
+{
+    private PDO $pdo;
+
+    public function __construct(PDO $pdo)
+    {
+        $this->pdo = $pdo;
+    }
+
+    /* ── room lifecycle ─────────────────────────────────────────────── */
+
+    public function createRoom(int $janusRoomId, int $ownerId, string $name, string $purpose = 'screen_cast'): int
+    {
+        $stmt = $this->pdo->prepare(
+            'INSERT INTO sfu_rooms (janus_room_id, owner_id, name, purpose, created_at, updated_at)
+             VALUES (:jrId, :oid, :name, :purpose, NOW(), NOW())'
+        );
+        $stmt->execute([
+            ':jrId'    => $janusRoomId,
+            ':oid'     => $ownerId,
+            ':name'    => $name,
+            ':purpose' => $purpose,
+        ]);
+        return (int) $this->pdo->lastInsertId();
+    }
+
+    public function getByJanusId(int $janusRoomId): ?array
+    {
+        $stmt = $this->pdo->prepare('SELECT * FROM sfu_rooms WHERE janus_room_id = :id LIMIT 1');
+        $stmt->execute([':id' => $janusRoomId]);
+        $row = $stmt->fetch(PDO::FETCH_ASSOC);
+        return $row ?: null;
+    }
+
+    public function listActive(): array
+    {
+        $stmt = $this->pdo->query(
+            "SELECT r.*, COUNT(p.id) AS participant_count
+             FROM sfu_rooms r
+             LEFT JOIN sfu_participants p ON p.room_id = r.id AND p.left_at IS NULL
+             WHERE r.closed_at IS NULL
+             GROUP BY r.id
+             ORDER BY r.created_at DESC"
+        );
+        return $stmt->fetchAll(PDO::FETCH_ASSOC);
+    }
+
+    public function closeRoom(int $roomId): void
+    {
+        $stmt = $this->pdo->prepare('UPDATE sfu_rooms SET closed_at = NOW() WHERE id = :id');
+        $stmt->execute([':id' => $roomId]);
+    }
+
+    /* ── participant tracking ───────────────────────────────────────── */
+
+    public function joinRoom(int $roomId, int $userId, int $janusHandleId, string $role = 'publisher'): int
+    {
+        $stmt = $this->pdo->prepare(
+            'INSERT INTO sfu_participants (room_id, user_id, janus_handle_id, role, joined_at)
+             VALUES (:room, :user, :handle, :role, NOW())'
+        );
+        $stmt->execute([
+            ':room'   => $roomId,
+            ':user'   => $userId,
+            ':handle' => $janusHandleId,
+            ':role'   => $role,
+        ]);
+        return (int) $this->pdo->lastInsertId();
+    }
+
+    public function leaveRoom(int $participantId): void
+    {
+        $stmt = $this->pdo->prepare('UPDATE sfu_participants SET left_at = NOW() WHERE id = :id');
+        $stmt->execute([':id' => $participantId]);
+    }
+
+    public function listParticipants(int $roomId): array
+    {
+        $stmt = $this->pdo->prepare(
+            'SELECT p.*, u.email FROM sfu_participants p
+             JOIN users u ON u.id = p.user_id
+             WHERE p.room_id = :room AND p.left_at IS NULL'
+        );
+        $stmt->execute([':room' => $roomId]);
+        return $stmt->fetchAll(PDO::FETCH_ASSOC);
+    }
+
+    /* ── stats hook ─────────────────────────────────────────────────── */
+
+    /** Record a bitrate/packet-loss sample for analytics. */
+    public function recordStats(int $participantId, float $bitrateKbps, float $packetLoss): void
+    {
+        $stmt = $this->pdo->prepare(
+            'INSERT INTO sfu_stats (participant_id, bitrate_kbps, packet_loss, sampled_at)
+             VALUES (:pid, :bw, :pl, NOW())'
+        );
+        $stmt->execute([':pid' => $participantId, ':bw' => $bitrateKbps, ':pl' => $packetLoss]);
+    }
+}