qzl
76 lines
2.2 KiB
Python
76 lines
2.2 KiB
Python
from __future__ import annotations
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from datetime import datetime
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from decimal import Decimal
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import uuid
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from sqlalchemy import (
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DateTime,
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JSON,
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Enum as SqlEnum,
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Integer,
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Numeric,
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String,
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func,
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text,
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)
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from sqlalchemy.dialects.postgresql import JSONB, UUID
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from sqlalchemy.orm import Mapped, mapped_column
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from core.db.base import Base, SoftDeleteMixin, TimestampMixin
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from schemas.enums import AgentChatSessionStatus, SessionType
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__all__ = ["AgentChatSession", "AgentChatSessionStatus", "SessionType"]
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class AgentChatSession(TimestampMixin, SoftDeleteMixin, Base):
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__tablename__: str = "sessions"
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__table_args__ = {"extend_existing": True}
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id: Mapped[uuid.UUID] = mapped_column(
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UUID(as_uuid=True), primary_key=True, default=uuid.uuid4
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)
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user_id: Mapped[uuid.UUID] = mapped_column(
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UUID(as_uuid=True),
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nullable=False,
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index=True,
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)
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session_type: Mapped[SessionType] = mapped_column(
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String(20),
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nullable=False,
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default=SessionType.CHAT,
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)
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job_id: Mapped[uuid.UUID | None] = mapped_column(
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UUID(as_uuid=True),
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nullable=True,
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)
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title: Mapped[str | None] = mapped_column(String(255), nullable=True)
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status: Mapped[AgentChatSessionStatus] = mapped_column(
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SqlEnum(
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AgentChatSessionStatus,
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name="agent_chat_session_status",
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native_enum=False,
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values_callable=lambda enum_cls: [item.value for item in enum_cls],
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),
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nullable=False,
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default=AgentChatSessionStatus.PENDING,
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)
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last_activity_at: Mapped[datetime] = mapped_column(
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DateTime(timezone=True),
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server_default=func.now(),
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nullable=False,
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)
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message_count: Mapped[int] = mapped_column(
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Integer, nullable=False, server_default=text("0")
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)
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total_tokens: Mapped[int] = mapped_column(
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Integer, nullable=False, server_default=text("0")
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)
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total_cost: Mapped[Decimal] = mapped_column(
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Numeric(12, 6), nullable=False, server_default=text("0")
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)
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state_snapshot: Mapped[dict | None] = mapped_column(
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JSON().with_variant(JSONB, "postgresql"),
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nullable=True,
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)
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