init

backend/app/models/room.py

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+import uuid
+from datetime import datetime
+from sqlalchemy import String, DateTime, Boolean, Integer, ForeignKey
+from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+from ..database import Base
+
+
+class Room(Base):
+    __tablename__ = "rooms"
+
+    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    name: Mapped[str] = mapped_column(String(100), nullable=False)
+    owner_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("users.id"), nullable=False)
+    current_track_id: Mapped[uuid.UUID | None] = mapped_column(UUID(as_uuid=True), ForeignKey("tracks.id"), nullable=True)
+    playback_position: Mapped[int] = mapped_column(Integer, default=0)  # milliseconds
+    playback_started_at: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)  # when playback started
+    is_playing: Mapped[bool] = mapped_column(Boolean, default=False)
+    created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
+
+    # Relationships
+    owner = relationship("User", back_populates="owned_rooms")
+    current_track = relationship("Track", foreign_keys=[current_track_id])
+    participants = relationship("RoomParticipant", back_populates="room", cascade="all, delete-orphan")
+    queue = relationship("RoomQueue", back_populates="room", cascade="all, delete-orphan", order_by="RoomQueue.position")
+    messages = relationship("Message", back_populates="room", cascade="all, delete-orphan")
+
+
+class RoomParticipant(Base):
+    __tablename__ = "room_participants"
+
+    room_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("rooms.id"), primary_key=True)
+    user_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("users.id"), primary_key=True)
+    joined_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
+
+    # Relationships
+    room = relationship("Room", back_populates="participants")
+    user = relationship("User", back_populates="room_participations")