Initial commit: AuroraMusic monorepo

packages/db/models.py

@@ -0,0 +1,60 @@
+import uuid
+from datetime import datetime
+
+from sqlalchemy import Boolean, DateTime, ForeignKey, Integer, String, Text, UniqueConstraint, func
+from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from .base import Base
+
+
+class User(Base):
+    __tablename__ = "users"
+
+    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    email: Mapped[str] = mapped_column(String(255), unique=True, index=True, nullable=False)
+    hashed_password: Mapped[str] = mapped_column(String(255), nullable=False)
+    display_name: Mapped[str] = mapped_column(String(100), nullable=False)
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
+
+    songs: Mapped[list["Song"]] = relationship(back_populates="owner", cascade="all, delete-orphan")
+
+
+class Song(Base):
+    __tablename__ = "songs"
+
+    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    user_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("users.id", ondelete="CASCADE"))
+
+    title: Mapped[str] = mapped_column(String(200), nullable=False)
+    prompt: Mapped[str] = mapped_column(Text, nullable=False)
+    lyrics: Mapped[str | None] = mapped_column(Text, nullable=True)
+    mode: Mapped[str] = mapped_column(String(20), default="instrumental")  # instrumental | vocals
+
+    status: Mapped[str] = mapped_column(String(20), default="pending")  # pending|processing|completed|failed
+    error_message: Mapped[str | None] = mapped_column(Text, nullable=True)
+
+    audio_path: Mapped[str | None] = mapped_column(String(500), nullable=True)
+    duration_seconds: Mapped[float | None] = mapped_column(nullable=True)
+    cover_seed: Mapped[int] = mapped_column(Integer, default=0)
+
+    is_public: Mapped[bool] = mapped_column(Boolean, default=False)
+    like_count: Mapped[int] = mapped_column(Integer, default=0)
+
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
+    updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())
+
+    owner: Mapped["User"] = relationship(back_populates="songs")
+    likes: Mapped[list["Like"]] = relationship(back_populates="song", cascade="all, delete-orphan")
+
+
+class Like(Base):
+    __tablename__ = "likes"
+    __table_args__ = (UniqueConstraint("user_id", "song_id", name="uq_like_user_song"),)
+
+    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    user_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("users.id", ondelete="CASCADE"))
+    song_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("songs.id", ondelete="CASCADE"))
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
+
+    song: Mapped["Song"] = relationship(back_populates="likes")