Files
resolutionflow/backend/app/models/assistant_chat.py
Michael Chihlas 1aa60dada2 feat: add AI assistant with in-session copilot and standalone chat with RAG
Implements three-phase AI assistant feature:
- Phase 0: RAG infrastructure with pgvector embeddings, Voyage AI integration,
  tree chunking service, and semantic search over team's flow library
- Phase 1: In-session copilot panel during flow navigation with contextual
  AI help, current step awareness, and suggested related flows
- Phase 2: Standalone AI chat page with persistent conversation history,
  pin/delete, and configurable retention policies (account-level)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-04 01:36:36 -05:00

60 lines
1.8 KiB
Python

"""Standalone AI assistant chat model.
Persistent conversation history for general IT questions with RAG context.
"""
import uuid
from datetime import datetime, timezone
from typing import Optional, Any
from sqlalchemy import String, DateTime, ForeignKey, Integer, Boolean
from sqlalchemy.orm import Mapped, mapped_column
from sqlalchemy.dialects.postgresql import UUID, JSONB
from app.core.database import Base
class AssistantChat(Base):
__tablename__ = "assistant_chats"
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"),
nullable=False,
index=True,
)
account_id: Mapped[uuid.UUID] = mapped_column(
UUID(as_uuid=True),
ForeignKey("accounts.id", ondelete="CASCADE"),
nullable=False,
index=True,
)
title: Mapped[str] = mapped_column(
String(255), nullable=False, default="New Chat"
)
messages: Mapped[list[dict[str, Any]]] = mapped_column(
JSONB, nullable=False, default=list
)
message_count: Mapped[int] = mapped_column(
Integer, nullable=False, default=0
)
total_input_tokens: Mapped[int] = mapped_column(
Integer, nullable=False, default=0
)
total_output_tokens: Mapped[int] = mapped_column(
Integer, nullable=False, default=0
)
pinned: Mapped[bool] = mapped_column(
Boolean, nullable=False, default=False
)
created_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True), default=lambda: datetime.now(timezone.utc)
)
updated_at: Mapped[datetime] = mapped_column(
DateTime(timezone=True),
default=lambda: datetime.now(timezone.utc),
onupdate=lambda: datetime.now(timezone.utc),
)