init

backend/app/db/models.py

@@ -0,0 +1,51 @@
+from datetime import datetime
+
+from sqlalchemy import Boolean, DateTime, ForeignKey, Integer, String, Text, func
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.db.base import Base
+
+
+class ChatSession(Base):
+    __tablename__ = "chat_sessions"
+
+    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
+    title: Mapped[str] = mapped_column(String(255), default="Новый чат")
+    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()
+    )
+
+    messages: Mapped[list["Message"]] = relationship(
+        back_populates="session", cascade="all, delete-orphan", order_by="Message.created_at"
+    )
+
+
+class Message(Base):
+    __tablename__ = "messages"
+
+    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
+    session_id: Mapped[int] = mapped_column(ForeignKey("chat_sessions.id", ondelete="CASCADE"), index=True)
+    role: Mapped[str] = mapped_column(String(32))
+    content: Mapped[str] = mapped_column(Text, default="")
+    tool_calls_json: Mapped[str | None] = mapped_column(Text, nullable=True)
+    tool_call_id: Mapped[str | None] = mapped_column(String(64), nullable=True)
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
+
+    session: Mapped["ChatSession"] = relationship(back_populates="messages")
+
+
+class PomodoroSession(Base):
+    __tablename__ = "pomodoro_sessions"
+
+    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
+    status: Mapped[str] = mapped_column(String(32), default="idle")
+    duration_min: Mapped[int] = mapped_column(Integer, default=25)
+    task_note: Mapped[str] = mapped_column(Text, default="")
+    result: Mapped[str | None] = mapped_column(Text, nullable=True)
+    completed: Mapped[bool] = mapped_column(Boolean, default=False)
+    started_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
+    paused_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
+    elapsed_seconds: Mapped[int] = mapped_column(Integer, default=0)
+    finished_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())