4527bfced6
Add tree_id FK (CASCADE) for editor-embedded sessions and archived_at timestamp column to ai_chat_sessions table. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
100 lines
3.1 KiB
Python
100 lines
3.1 KiB
Python
"""AI Chat Builder session tracking.
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Stores conversational flow builder state across the multi-phase interview.
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Sessions expire after 24 hours.
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"""
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import uuid
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from datetime import datetime, timezone
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from typing import Optional, Any
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from sqlalchemy import String, DateTime, ForeignKey, Integer
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from sqlalchemy.orm import Mapped, mapped_column
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from sqlalchemy.dialects.postgresql import UUID, JSONB
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from app.core.database import Base
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class AIChatSession(Base):
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__tablename__ = "ai_chat_sessions"
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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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ForeignKey("users.id", ondelete="CASCADE"),
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nullable=False,
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index=True,
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)
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account_id: Mapped[uuid.UUID] = mapped_column(
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UUID(as_uuid=True),
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ForeignKey("accounts.id", ondelete="CASCADE"),
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nullable=False,
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index=True,
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)
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status: Mapped[str] = mapped_column(
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String(20),
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nullable=False,
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default="active",
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comment="active | completed | abandoned",
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)
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current_phase: Mapped[str] = mapped_column(
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String(20),
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nullable=False,
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default="scoping",
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comment="scoping | discovery | enrichment | review | generation",
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)
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flow_type: Mapped[str] = mapped_column(
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String(20),
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nullable=False,
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comment="troubleshooting | procedural",
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)
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conversation_history: Mapped[list[dict[str, Any]]] = mapped_column(
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JSONB, nullable=False, default=list
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)
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working_tree: Mapped[Optional[dict[str, Any]]] = mapped_column(
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JSONB, nullable=True
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)
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tree_metadata: Mapped[dict[str, Any]] = mapped_column(
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JSONB, nullable=False, default=dict
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)
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provider_used: Mapped[Optional[str]] = mapped_column(
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String(20), nullable=True
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)
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message_count: Mapped[int] = mapped_column(
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Integer, nullable=False, default=0
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)
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total_input_tokens: Mapped[int] = mapped_column(
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Integer, nullable=False, default=0
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)
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total_output_tokens: Mapped[int] = mapped_column(
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Integer, nullable=False, default=0
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)
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generated_tree_id: Mapped[Optional[uuid.UUID]] = mapped_column(
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UUID(as_uuid=True),
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ForeignKey("trees.id", ondelete="SET NULL"),
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nullable=True,
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)
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expires_at: Mapped[datetime] = mapped_column(
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DateTime(timezone=True), nullable=False
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)
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created_at: Mapped[datetime] = mapped_column(
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DateTime(timezone=True), default=lambda: datetime.now(timezone.utc)
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)
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updated_at: Mapped[datetime] = mapped_column(
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DateTime(timezone=True),
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default=lambda: datetime.now(timezone.utc),
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onupdate=lambda: datetime.now(timezone.utc),
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)
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# Editor-embedded session: links to a specific tree/flow
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tree_id: Mapped[Optional[uuid.UUID]] = mapped_column(
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UUID(as_uuid=True),
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ForeignKey("trees.id", ondelete="CASCADE"),
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nullable=True,
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index=True,
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)
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archived_at: Mapped[Optional[datetime]] = mapped_column(
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DateTime(timezone=True),
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nullable=True,
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)
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